A method and apparatus for adjusting a light guide post and a cylindrical light guide post sidewall structure

Abstract

The application discloses a light guide column and a cylindrical light guide column side wall structure adjusting method and device, wherein the method comprises the following steps: obtaining the size parameters of the light guide column; calculating the total reflection angle of the light guide column according to the refractive index of the light guide column and the refractive index of air based on the refraction law; and calculating the refraction angle of the refracted light according to the incident angle of the incident light; when the complementary angle of the refraction angle is less than the total reflection angle, obtaining the first inclination angle range of the side wall of the light guide column according to the refraction angle and the total reflection angle; calculating the position of the edge light of the light guide column first incident to the side wall of the light guide column after being refracted by the light inlet surface based on the refraction angle and the diameter of the light inlet surface, and marking the position as the first position; and adjusting the side wall of the light guide column according to the first inclination angle range from the direction of the first position to the bottom surface of the light guide column to form a first inclined surface, so that the refracted light is totally reflected on the first inclined surface. Therefore, the refracted light can still be totally reflected on the side wall, the light energy loss is reduced, and the light guide efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of optical technology, and in particular to a method and apparatus for adjusting a light guide post and the sidewall structure of a cylindrical light guide post. Background Technology

[0002] Currently, with the development of technology, light sensors are being used in various industries, such as smart doorbells, smart displays, mobile phones, and external remote controls. Light sensors obtain the information they need by sensing light. Since the light sensors are installed in the structure of the above devices, the transmission of light is limited by the structure of the device itself, and light needs to be transmitted through a light guide column.

[0003] Most current light guides are made of cylindrical plastic material of uniform size. They utilize the difference in refractive index between the two different media materials to generate total internal reflection in the light guide medium under certain conditions after the light enters the medium. Through the simple cylindrical shape, the light is transmitted to the conductor below after repeated total internal reflection.

[0004] However, its problem is that, after changing the incident angle of the incident light, the cylindrical light guide column... Figure 1 As shown, the light intensity received by the light sensor decreases significantly as the incident light angle increases. When the incident light angle is approximately 35 degrees, the light guide column's transmission efficiency drops to about 50% of the original light intensity. When the incident light angle is greater than 60 degrees, the light guide column's efficiency is below 10% and approaches 0%. Summary of the Invention

[0005] This invention provides a method and apparatus for adjusting the sidewall structure of a light guide column and a cylindrical light guide column, in order to solve the problem in related technologies that the transmission efficiency of a cylindrical light guide column decreases rapidly with the increase of the incident angle.

[0006] To address the aforementioned problems, a first aspect of the present invention provides a method for adjusting the sidewall structure of a cylindrical light guide post, comprising:

[0007] Obtain the dimensional parameters of the light guide post, including: the diameter of the light entrance / exit surface, the height of the light guide post, the refractive index of the light guide post, and the incident angle of the incident light.

[0008] Based on the law of refraction, the total internal reflection angle of the light guide is calculated according to the refractive index of the light guide and the refractive index of air; and the angle of refraction of the refracted light ray refracted through the incident surface of the light guide is calculated by combining the incident angle of the incident light ray.

[0009] When the complementary angle of the refraction angle is less than the total reflection angle, the first tilt angle range of the sidewall of the light guide post is obtained based on the refraction angle and the total reflection angle.

[0010] Based on the refraction angle and the incident surface diameter, the position where the edge light rays of the light guide first enter the side wall of the light guide after being refracted by the incident surface is calculated and recorded as the first position;

[0011] From the first position toward the bottom surface of the light guide post, the sidewall of the light guide post is adjusted according to the first tilt angle range to form a first tilted surface, so that the refracted light undergoes total internal reflection on the first tilted surface.

[0012] Optionally, when the complementary angle of the refraction angle is greater than or equal to the total reflection angle, the method further includes:

[0013] The line connecting the target light-emitting point on the light-emitting surface of the light guide column to the first position is the first line. Based on the first angle formed by the first line and the side wall of the light guide column, the side wall of the light guide column is adjusted from the first position to the bottom surface of the light guide column to form a second inclined surface, so that the refracted light can be totally reflected on the second inclined surface and still hit the target light-emitting point.

[0014] Optionally, after adjusting the sidewall of the light guide post according to the first tilt angle range in the direction from the first position to the bottom surface of the light guide post to form a first tilt surface, the method further includes:

[0015] Based on the refraction angle and the incident surface diameter, the position where the edge light of the light guide column first incident on the first inclined surface after being refracted by the incident surface is calculated and recorded as the second position;

[0016] The line connecting the target light-emitting point on the light-emitting surface of the light guide column and the second position is the second line. Based on the second angle formed by the second line and the first inclined surface, the sidewall of the light guide column is adjusted from the second position to the bottom surface of the light guide column to form a third inclined surface, so that the refracted light can hit the target light-emitting point while undergoing total internal reflection on the third inclined surface.

[0017] Optionally, the direction from the first position to the bottom surface of the light guide includes:

[0018] When the first position is above the middle height of the light guide column and close to the light incident surface of the light guide column, the direction from the first position to the light incident surface of the light guide column is tilted from the first position to the central axis of the light guide column to form a frustum shape, and the sidewall of the light guide column is adjusted.

[0019] When the first position is below the middle height of the light guide column and close to the light emitting surface of the light guide column, the diameter of the light guide column is increased in the direction away from the central axis of the light guide column from the light incident surface to the first position of the light guide column, and the sidewall of the light guide column is adjusted.

[0020] Optionally, obtaining the range of the first tilt angle of the sidewall of the light guide post based on the refraction angle and the total reflection angle includes:

[0021] The complementary angle of the refraction angle is obtained based on the refraction angle;

[0022] The difference between the complementary angle of the refraction angle and the total reflection angle is the minimum tilt angle within the first tilt angle range.

[0023] Optionally, adjusting the sidewall of the light guide post to form a second inclined surface, based on the first angle formed by the first connecting line and the sidewall of the light guide post, from the first position towards the bottom surface of the light guide post, includes:

[0024] When the first included angle is less than the refraction angle, the tilt angle of the second tilted surface is the difference between the first included angle and the refraction angle, and the second tilted surface is tilted towards the central axis of the light guide post;

[0025] When the first included angle is greater than the refraction angle, the complementary angle of the first included angle is greater than the total reflection angle, and the complementary angle of the refraction angle is greater than the total reflection angle, the tilt angle of the second tilted surface is the difference between the complementary angle of the refraction angle and the complementary angle of the first included angle, and the second tilted surface is tilted away from the central axis of the light guide post.

[0026] When the first included angle is greater than the refraction angle, the complementary angle of the first included angle is less than the total reflection angle, and the complementary angle of the refraction angle is greater than the total reflection angle, the tilt angle of the second tilted surface is the difference between the complementary angle of the refraction angle and the total reflection angle, and the second tilted surface is tilted away from the central axis of the light guide post.

[0027] No adjustment is made when the first included angle is greater than the angle of refraction, the complementary angle of the first included angle is less than the angle of total reflection, and the complementary angle of the angle of refraction is equal to the angle of total reflection, or when the first included angle is equal to the angle of refraction.

[0028] Optionally, adjusting the sidewall of the light guide post to form a third inclined surface, based on the second angle formed by the second connecting line and the first inclined surface, from the second position towards the bottom surface of the light guide post, includes:

[0029] When the second included angle is less than the complementary angle of the reflection angle of the refracted ray on the first inclined surface and greater than the angle between the first inclined surface and the sidewall, and the reflection angle of the refracted ray on the first inclined surface is greater than or equal to the total internal reflection angle, the inclination angle of the third inclined surface is the difference between the complementary angle of the reflection angle of the refracted ray on the first inclined surface and the second included angle; the third inclined surface is inclined towards the central axis direction of the light guide post;

[0030] When the second included angle is greater than the complementary angle of the reflection angle of the refracted ray on the first inclined surface, the second included angle is less than the complementary angle of the total internal reflection angle, and the reflection angle of the refracted ray on the first inclined surface is greater than the total internal reflection angle, the inclination angle of the third inclined surface is the difference between the reflection angle of the refracted ray on the first inclined surface and the second included angle; the third inclined surface is inclined away from the central axis of the light guide post.

[0031] When the second included angle is greater than the complementary angle of the reflection angle of the refracted ray on the first inclined surface, the second included angle is greater than the complementary angle of the total internal reflection angle, and the reflection angle of the refracted ray on the first inclined surface is greater than the total internal reflection angle, the inclination angle of the third inclined surface is the difference between the reflection angle of the refracted ray on the first inclined surface and the total internal reflection angle; the third inclined surface is inclined away from the central axis of the light guide post.

[0032] No adjustment is made when the second included angle is greater than the complementary angle of the reflection angle of the refracted ray on the first inclined surface, the second included angle is greater than or equal to the complementary angle of the total internal reflection angle, and the reflection angle of the refracted ray on the first inclined surface is equal to the total internal reflection angle; or, when the second included angle is equal to the complementary angle of the reflection angle of the refracted ray on the first inclined surface; or, when the second included angle is greater than the angle between the first inclined surface and the side wall.

[0033] To address the aforementioned problems, a second aspect of the present invention provides an adjustment device for the sidewall structure of a cylindrical light guide post, comprising:

[0034] The acquisition module is used to acquire the size parameters of the light guide post, including: the diameter of the light inlet / outlet surface, the height of the light guide post, the refractive index of the light guide post, and the incident angle of the incident light.

[0035] The first calculation module is used to calculate the total internal reflection angle of the light guide column based on the law of refraction, according to the refractive index of the light guide column and the refractive index of air; and to calculate the refraction angle of the refracted light ray refracted through the incident surface of the light guide column in combination with the incident angle of the incident light ray.

[0036] The second calculation module is used to obtain the first tilt angle range of the sidewall of the light guide post based on the refraction angle and the total reflection angle when the complementary angle of the refraction angle is less than the total reflection angle.

[0037] The third calculation module is used to calculate, based on the refraction angle and the diameter of the incident surface, the position where the edge light of the light guide column first enters the side wall of the light guide column after being refracted by the incident surface, and is recorded as the first position;

[0038] An execution module is used to adjust the sidewall of the light guide post from the first position toward the bottom surface of the light guide post according to the first tilt angle range to form a first tilted surface, so that the refracted light undergoes total internal reflection on the first tilted surface.

[0039] To address the aforementioned problems, a third aspect of the present invention provides a light guide column, which is a light guide column based on a cylindrical light guide column, including an incident light surface, an exit light surface, and a sidewall. The sidewall is adjusted based on the adjustment method of the cylindrical light guide column sidewall structure described in any embodiment of the present invention.

[0040] According to embodiments of the present invention, a method and apparatus for adjusting the sidewall structure of a light guide column and a cylindrical light guide column are provided. The method includes: obtaining the dimensional parameters of the light guide column, including: the diameter of the light-incident / light-out surface, the height of the light guide column, the refractive index of the light guide column, and the incident angle of the incident light; calculating the total internal reflection angle of the light guide column based on the law of refraction, according to the refractive index of the light guide column and the refractive index of air; and calculating the refraction angle of the refracted light ray refracted by the light-incident surface of the light guide column in combination with the incident angle of the incident light; when the complementary angle of the refraction angle is less than the total internal reflection angle, obtaining a first tilt angle range of the sidewall of the light guide column based on the refraction angle and the total internal reflection angle; calculating the position where the edge light ray of the light guide column first enters the sidewall of the light guide column after refraction by the light-incident surface based on the refraction angle and the diameter of the light-incident surface, and recording it as the first position; adjusting the sidewall of the light guide column from the first position to the bottom surface of the light guide column according to the first tilt angle range to form a first tilt surface, so that the refracted light ray undergoes total internal reflection on the first tilt surface. Therefore, when the incident angle increases, the incident angle of the refracted light to the sidewall can be changed by altering the shape of the sidewall of the cylindrical light guide, so that the refracted light can still undergo total internal reflection on the sidewall, reducing light energy loss and improving light guiding efficiency.

[0041] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram illustrating the change in the light guiding efficiency of a cylindrical light guide column with the incident angle in related technologies.

[0044] Figure 2This is a schematic diagram of the structure of a cylindrical light guide column in related technologies;

[0045] Figure 3 This is a flowchart of the method for adjusting the sidewall structure of the cylindrical light guide column proposed in the embodiments of the present invention;

[0046] Figure 4 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in an embodiment of the present invention;

[0047] Figure 5 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure according to an embodiment of the present invention;

[0048] Figure 6 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention;

[0049] Figure 7 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention;

[0050] Figure 8 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention;

[0051] Figure 9 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention;

[0052] Figure 10 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention;

[0053] Figure 11 This is a schematic diagram showing the change of light guiding efficiency of the light guide post proposed in the embodiments of the present invention and the existing light guide post as a function of the incident angle;

[0054] Figure 12 This is a schematic diagram of the structure of an electronic device that implements the adjustment method of the sidewall structure of the cylindrical light guide column according to an embodiment of the present invention. Detailed Implementation

[0055] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0056] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0057] Figure 1 This is a schematic diagram illustrating the variation of the light guiding efficiency of a cylindrical light guide column with the incident angle in related technologies. Figure 2 This is a schematic diagram of the structure of a cylindrical light guide column in related technologies. For example... Figure 2 As shown, the cylindrical light guide 100 (hereinafter referred to as the light guide 100) is used to guide the incident light 300 to the photosensitive element 200 (infrared sensor or environmental sensor). As the incident angle α1 of the incident light 300 increases, more light is reflected on the light-incident surface of the light guide 100, resulting in a lower light transmittance entering the light guide 100. Furthermore, as the incident angle α1 of the incident light 300 increases, the refraction angle α2 increases, which in turn leads to a decrease in the incident angle β2 of the refracted light 400 on the sidewall. When the incident angle β2 of the refracted light 400 on the sidewall decreases to less than the total internal reflection angle (critical angle) of the light guide 100, refraction will occur on the sidewall of the refracted light 400, further reducing the light flux propagating within the light guide 100. The emitted light rays to the photosensitive element 200 cannot hit the photosensitive element 200 due to the increased deflection angle, forming invalid emitted light rays. Consequently, the light guiding efficiency of the light guide post 100 (the ratio of the light intensity received on the photosensitive element 200 to the light intensity received on the light incident surface of the light guide post 100) decreases.

[0058] The increase in the incident angle α1 of the incident light 300 can be adjusted through the internal structure of the product itself (such as changing the placement position of the light guide column 100) to reduce the incident angle α1. If the problem cannot be solved through the internal structure of the product itself, the light guiding efficiency of the light guide column can be improved by adjusting the side wall structure of the cylindrical light guide column proposed in this embodiment of the invention.

[0059] Continue to refer to Figure 2The incident ray 300 includes the left edge incident ray 301, the middle incident ray 302, and the right edge incident ray 303. The refracted ray 400 includes the refracted ray 401 of the left edge incident ray 301, the refracted ray 402 of the middle incident ray 302 (e.g., the refracted ray 402 incident on point A of the side wall), and the refracted ray 403 of the right edge incident ray 303 (e.g., incident at point C). The following labels are consistent with the meaning of this part.

[0060] Figure 3 This is a flowchart illustrating the method for adjusting the sidewall structure of the cylindrical light guide column proposed in an embodiment of the present invention. (Combined with...) Figure 2 and Figure 3 As shown, the adjustment method includes:

[0061] S101, obtain the size parameters of the light guide post, including: the diameter R of the light inlet / outlet surface, the height H of the light guide post, the refractive index n1 of the light guide post, and the incident angle α1 of the incident ray 30°.

[0062] The diameter R of the light-entry / light-exit surface and the height H of the light guide can be obtained by measuring with a length measuring device (such as a vernier caliper). The refractive index n1 of the light guide and the incident angle α1 of the incident ray 30° can be determined according to the design requirements.

[0063] S102, based on the law of refraction, calculate the total internal reflection angle of the light guide post 100 according to the refractive index n1 of the light guide post and the refractive index n2 of air; and calculate the refraction angle α2 of the refracted ray 400 refracted through the incident surface 500 of the light guide post 100 by combining the incident angle α1 of the incident ray 300.

[0064] Where n2sinα1=n1sinα2, when the incident angle α1 is 90 degrees and the refractive index of air n2=1, the calculated refraction angle α2 is the critical angle, i.e. the total internal reflection angle.

[0065] S103, when the complementary angle α3 of the refraction angle α2 is less than the total reflection angle, the first tilt angle range of the sidewall of the light guide post 100 is obtained according to the refraction angle α2 and the total reflection angle.

[0066] It is understandable that, such as Figure 2 As shown, in the cylindrical light guide 100, the complementary angle α3 of the refraction angle α2 is the incident angle β2 of the refracted ray 400 on the side wall. When the complementary angle α3 of the refraction angle α2 is less than the total reflection angle, that is, when the incident angle β2 of the refracted ray 400 on the side wall is less than the total reflection angle, the refracted ray 400 will be refracted on the side wall, causing light leakage from the side wall.

[0067] Therefore, in order to avoid light leakage from the sidewall, it is necessary to increase the incident angle β2 of the refracted ray 400 on the sidewall. Figure 4This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in an embodiment of the present invention. Figure 4 As shown, tilting the sidewall of the cylindrical light guide 100 towards the central axis of the light guide (for example, the sidewall after adjustment is indicated by the dashed line) will increase the incident angle β2 of the refracted ray 400 on the sidewall. This can prevent the incident angle β2 of the refracted ray 400 on the sidewall from being less than the total internal reflection angle, causing the refracted ray 400 to refract at the sidewall, resulting in light leakage at the sidewall and a decrease in light guiding efficiency.

[0068] Continue to refer to Figure 4 Optionally, the range of the first tilt angle of the sidewall of the light guide post, obtained based on the refraction angle α2 and the total reflection angle, includes:

[0069] The complementary angle α3 of the refraction angle is obtained based on the refraction angle α2;

[0070] The difference between the complementary angle α3 of the refraction angle and the total reflection angle is the minimum tilt angle within the first tilt angle range.

[0071] Understandably, before adjusting the sidewall of the light guide post, the complementary angle α3 of the refraction angle is the incident angle β2 of the refracted ray 400 on the sidewall, and the refraction angle α2 is the complementary angle β1 of the incident angle β2 of the refracted ray 400 on the sidewall. Using the difference γ between the complementary angle α3 of the refraction angle and the total internal reflection angle, the sidewall can be tilted by a minimum tilt angle γ to the central axis of the light guide post, so that the incident angle of the refracted ray 400 on the sidewall becomes β2 + γ. Therefore, the refracted ray 400 can undergo total internal reflection on the sidewall of the light guide post, and no light will leak from the sidewall. It should be noted that the range of the first tilt angle is greater than the minimum tilt angle γ and less than the complementary angle β1 of the incident angle β2 (i.e., the refraction angle α2).

[0072] S104. Based on the refraction angle α2 and the incident surface diameter R, calculate the position of the first incident light ray 303 of the light guide post 100 after being refracted by the incident surface 500 and hitting the side wall of the light guide post 100 for the first time, and record it as the first position.

[0073] Among them, with Figure 4 In terms of orientation, edge ray 303 is a right edge ray. When edge ray 303 hits the sidewall, the height from the first position to the incident surface 500 can be calculated geometrically using the incident surface diameter R and the refraction angle α2, thereby determining the first position.

[0074] S105, from the first position pointing towards the bottom surface of the light guide post 100, adjust the side wall of the light guide post according to the first tilt angle range to form a first tilt surface, so that the refracted light undergoes total internal reflection on the first tilt surface.

[0075] Understandably, after calculating the first tilt angle through step S103, it is also necessary to determine at which position the sidewall of the cylindrical light guide should be adjusted.

[0076] Figure 5 This is a schematic diagram of the adjustment process of the cylindrical light guide column sidewall structure proposed in one embodiment of the present invention. Figure 6 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure according to another embodiment of the present invention. Optionally, the direction from the first position to the bottom surface of the light guide pillar includes:

[0077] like Figure 5 As shown, when the first position is above the middle height of the light guide column and close to the light incident surface of the light guide column, the direction from the first position to the light incident surface of the light guide column is tilted from the first position to the central axis of the light guide column to form a frustum shape, and the side wall of the light guide column is adjusted.

[0078] like Figure 6 As shown, when the first position is below the middle height of the light guide column and close to the light emitting surface of the light guide column, the diameter of the light guide column is increased in the direction from the light incident surface to the first position of the light guide column, away from the central axis of the light guide column, and the sidewall of the light guide column is adjusted.

[0079] Specifically, when the light guide at the first position is above the middle height and close to the light-incident surface, it indicates that less light is refracted from the first position towards the light-out surface (e.g., Figure 5 As shown, the dotted line represents the sidewall of the light guide after cutting (i.e., adjustment). This allows the sidewall of the light guide to be adjusted from the first position towards the light incident surface of the light guide.

[0080] When the first position is below the middle height of the light guide column and close to the light-emitting surface of the light guide column, it indicates that the light rays are refracted along a long stretch of the light guide column from the light-incident surface to the first position (e.g., Figure 6 As shown, the dotted line represents the adjusted sidewall of the light guide post, which can be adjusted in the same way as above. Alternatively, the diameter of the light guide post can be increased away from its central axis by pointing from the light-incident surface towards the first position of the light guide post, thus adjusting the sidewall. Since cutting along the central axis of the light guide post may significantly reduce the light-incident surface area (e.g., less than half of the original area), adjusting the sidewall by increasing the diameter away from the central axis helps increase light guiding efficiency without reducing the light-incident surface area. Furthermore, the original cylindrical light guide post can be designed as a frustum shape.

[0081] Therefore, once the incident angle α1 of the incident ray 300 is determined, if the refracted ray 400 cannot undergo total internal reflection on the side wall, the side wall of the light guide post can be adjusted using the above adjustment method to avoid light leakage from the side wall causing a decrease in light guiding efficiency.

[0082] Based on the above embodiments, in order to ensure that more light rays emitted from the light-emitting surface 600 can hit the light-sensing element 200, the side wall shape of the light guide column can be designed according to the following scheme.

[0083] Optionally, Figure 7 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention. Figure 7 As shown, after adjusting the sidewalls of the light guide post according to the first tilt angle range in the direction from the first position to the bottom surface of the light guide post to form the first tilt surface, the method further includes:

[0084] Based on the refraction angle α2 and the incident surface diameter R, calculate the position of the edge ray 303 of the light guide post 100 that first incident on the first inclined surface after refraction at the incident surface, and denot it as the second position (example shown). Figure 7 (Point B in the middle);

[0085] The target light-emitting point of the light-emitting surface 600 of the light guide column 100 (example as follows) Figure 7 The line connecting point D in the middle and the second position is the second line 700. Based on the second angle θ1 formed by the second line 700 and the first inclined surface, the side wall of the light guide is adjusted from the second position to the bottom surface of the light guide to form a third inclined surface, so that the refracted light 400 can hit the target light emission point while undergoing total internal reflection on the third inclined surface.

[0086] In other words, after adjusting the sidewall of the light guide column to form the first inclined surface, it can be further adjusted by the target light-emitting point of the light-emitting surface to increase the light-gathering amount of the photosensitive element 200, thereby improving the light guiding efficiency.

[0087] Optionally, based on the second angle θ1 formed by the second connecting line 700 and the first inclined surface, adjusting the sidewall of the light guide post from the second position towards the bottom surface of the light guide post to form the third inclined surface includes:

[0088] When the second included angle θ1 is less than the complementary angle θ of the reflection angle τ of the refracted ray 400 on the first inclined surface, and greater than the included angle between the first inclined surface and the side wall, and the reflection angle τ of the refracted ray 400 on the first inclined surface is greater than or equal to the total internal reflection angle, the inclination angle of the third inclined surface is the difference between the complementary angle θ of the reflection angle of the refracted ray 400 on the first inclined surface and the second included angle θ1; the third inclined surface is inclined in the direction of the central axis of the guide column.

[0089] It is understandable that the second included angle θ1 is less than the complementary angle θ of the reflection angle τ, and greater than the included angle between the first inclined plane and the sidewall. Figure 7As illustrated, the target light-emitting point D is to the right of the perpendicular line drawn from point B to the light surface 600, and to the left of the reflected ray 800 on the first inclined plane. This allows the reflected ray 800 to be shifted to the left, thereby tilting the first inclined plane again towards the central axis of the light column. Since the reflection angle τ is greater than or equal to the total internal reflection angle, tilting the first inclined plane again towards the central axis of the light column does not affect the total internal reflection of the light on the first inclined plane.

[0090] When the second included angle θ1 is greater than the complementary angle θ of the reflection angle τ of the refracted ray 403 on the first inclined surface, the second included angle θ1 is less than or equal to the complementary angle of the total internal reflection angle, and the reflection angle τ of the refracted ray 403 on the first inclined surface is greater than the total internal reflection angle, the tilt angle of the third inclined surface is the difference between the reflection angle of the refracted ray 403 on the first inclined surface and the second included angle θ1; the third inclined surface is tilted away from the central axis of the light guide post.

[0091] in other words, Figure 8 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention. Figure 8 As shown, the second line 700 is located to the right of the reflected ray 800 and to the left of the reflected ray 800, where the reflection angle τ is the total reflection angle. This reduces the tilt angle of the first tilted surface, allowing the reflected ray 800 to shift to the right on the light-emitting surface 600.

[0092] When the second included angle θ1 is greater than the complementary angle θ of the reflection angle τ of the refracted ray 403 on the first inclined surface, the second included angle θ1 is greater than the complementary angle of the total internal reflection angle, and the reflection angle τ of the refracted ray 403 on the first inclined surface is greater than the total internal reflection angle, the tilt angle of the third inclined surface is the difference between the reflection angle of the refracted ray on the first inclined surface and the total internal reflection angle; the third inclined surface is tilted away from the central axis of the light guide post.

[0093] Understandably, the second line 700 is located to the right of the reflected ray 800, and to the right of the reflected ray 800 where the reflection angle τ is the total reflection angle. Ultimately, the tilt angle of the first inclined plane can only be adjusted until the reflection angle τ of the refracted ray 403 on the first inclined plane is the total reflection angle.

[0094] No adjustment is made when the second included angle θ1 is greater than the complementary angle θ of the reflection angle τ of the refracted ray 403 on the first inclined surface, the second included angle θ1 is greater than or equal to the complementary angle of the total internal reflection angle, and the reflection angle τ of the refracted ray on the first inclined surface is equal to the total internal reflection angle; or, when the second included angle θ1 is equal to the complementary angle τ of the reflection angle τ of the refracted ray 403 on the first inclined surface; or, when the second included angle θ1 is less than the angle between the first inclined surface and the side wall.

[0095] The second included angle θ1 is less than the included angle between the first inclined plane and the side wall, indicating that the target light-emitting point D is to the left of the vertical line from point B to the light surface 600. Thus, when the light rays emitted from the target light-emitting point D can hit the photosensitive element 200, the light rays located to the right of the vertical line from point B to the light surface 600 can generally also hit the photosensitive element 200. Therefore, no adjustment is required.

[0096] When the reflection angle τ of the refracted light on the first inclined surface is equal to the total internal reflection angle, no adjustment is made. That is, the total internal reflection of the first inclined surface is not sacrificed to adjust the target light emission point.

[0097] When the second included angle θ1 is equal to the complementary angle of the reflection angle τ of the refracted ray 403 on the first inclined surface, it means that the exit point of the reflected ray 800 is exactly the same as the exit point of the target, and no adjustment is needed.

[0098] In summary, in this embodiment, when the reflection angle of the first inclined surface equals the total internal reflection angle, the tilt angle of the first inclined surface can be further increased to shift the intersection point of the reflected ray 800 and the light-emitting surface 600 from the current position to the left. However, the adjustment limit is reached up to the foot of the perpendicular line drawn from point B to the light-emitting surface 600 (the adjustment basis in this embodiment is that the reflected ray 800 itself is to the right of the foot of the perpendicular line drawn from point B to the light-emitting surface 600). If the reflected ray 800 is to the left of the perpendicular line drawn from point B to the light-emitting surface 600, it means that it will hit the side wall of the light guide column again. Such emitted light will basically hit the photosensitive element 200, and therefore, it is not considered. Thus, when the first inclined surface satisfies total internal reflection, the first inclined surface can be adjusted again according to the position of the target light-emitting point to form a third inclined surface.

[0099] In regard Figure 6 In the example, the same adjustment was made as described above, and will not be repeated here.

[0100] In another embodiment, Figure 9 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention. Figure 9 As shown, optionally, when the complementary angle α3 of the refraction angle α2 is greater than or equal to the total reflection angle, it further includes:

[0101] The line connecting the target light-emitting point D of the light-emitting surface 600 of the light guide column and the first position A is the first line 900. Based on the first angle formed by the first line 900 and the side wall of the light guide column 100, the side wall of the light guide column is adjusted from the first position A to the bottom surface of the light guide column to form a second inclined surface, so that the refracted light can be totally reflected on the second inclined surface and hit the target light-emitting point.

[0102] In other words, when the complementary angle α3 of the refraction angle α2 is greater than or equal to the total reflection angle, that is, when the incident angle β2 of the refracted ray 400 on the side wall is greater than the total reflection angle, the light can undergo total reflection in the light guide column. However, the light exit point may not be able to hit the photosensitive element 200. Therefore, the light guide efficiency can be improved by adjusting the side wall so that the light exit point hits the photosensitive element 200.

[0103] Optionally, continue to refer to Figure 9 Based on the first angle θ2 formed by the first connecting line 900 and the sidewall of the light guide post, adjusting the sidewall of the light guide post from the first position A towards the bottom surface of the light guide post to form the second inclined surface includes:

[0104] When the first included angle θ2 is less than the refraction angle α2 (i.e., the complementary angle β1 of the reflection angle β2), the tilt angle of the second tilted surface is the difference between the first included angle θ2 and the refraction angle α2, and the second tilted surface is tilted in the direction of the central axis of the guide column.

[0105] In other words, although the sidewall satisfies the total internal reflection of the refracted light 400, it does not satisfy the light collection of the photosensitive element 200. Therefore, the sidewall can be tilted to reduce the reflection angle β2. The principle can be referred to the principle of increasing the reflection angle β2 in the previous embodiment, which will not be repeated here.

[0106] Figure 10 This is a schematic diagram illustrating the adjustment process of the cylindrical light guide pillar sidewall structure proposed in another embodiment of the present invention. Figure 10 As shown, when the first included angle θ2 is greater than the refraction angle α2 (i.e., the complementary angle β1 of the reflection angle β2), the complementary angle of the first included angle θ2 is greater than the total reflection angle, and the complementary angle α3 of the refraction angle α2 is greater than the total reflection angle, the tilt angle of the second tilted surface is the difference between the complementary angle α3 of the refraction angle α2 and the complementary angle of the first included angle θ2, and the second tilted surface is tilted away from the central axis of the light guide post.

[0107] In other words, at this time, the target light-emitting point D is located to the right of the intersection of the reflected ray 800 and the light-emitting surface 600, and to the left of the intersection of the total internal reflection ray 1000 and the light-emitting surface 600. Therefore, the sidewall of the light guide column can be adjusted from the first position A towards the light-emitting surface, and the sidewall can be retracted to form a frustum shape where the light-emitting surface 600 becomes smaller (where the dotted lines represent the adjusted shape).

[0108] When the first included angle θ2 is greater than the refraction angle α2 (i.e., the complementary angle β1 of the reflection angle β2), the complementary angle of the first included angle θ2 is less than the total reflection angle, and the complementary angle α3 of the refraction angle α2 is greater than the total reflection angle, the tilt angle of the second tilted surface is the difference between the complementary angle of the refraction angle and the total reflection angle, and the second tilted surface is tilted away from the central axis of the light guide post.

[0109] In other words, at this point, the target light-emitting point D has moved to the right of the intersection of the total internal reflection ray 1000 and the light-emitting surface 600. At this point, we should also try to satisfy the target light-emitting point D, taking the intersection of the total internal reflection ray 1000 and the light-emitting surface 600 as the final target light-emitting point, and no longer reduce the reflection angle β2.

[0110] No adjustment is made when the first included angle θ2 is greater than the refraction angle α2 (i.e., the complementary angle β1 of the reflection angle β2), the complementary angle of the first included angle θ2 is less than the total reflection angle, and the complementary angle of the refraction angle α2 is equal to the total reflection angle, or when the first included angle θ2 is equal to the refraction angle.

[0111] In general, in this embodiment, the emission point of the emitted light ray 800 can be changed by adjusting the inclination of the sidewall of the light-emitting surface from the first position A, thereby satisfying the target of hitting the photosensitive element 200.

[0112] In other embodiments, after adjusting the upper side of the light guide at a first incident angle, the lower side of the light guide can be adjusted at a second incident angle. For example, the first incident angle can be greater than the incident angle corresponding to the total internal reflection angle, and the second incident angle can be less than the incident angle corresponding to the total internal reflection angle. Thus, the same light guide can meet the requirements of different incident angles.

[0113] In summary, by changing the inclination of the sidewalls of the cylindrical light guide, the light leakage problem of the sidewalls can be solved, and the light emission point can also be changed to meet the light collection needs of the photosensitive element, thereby improving the overall light guiding efficiency of the light guide.

[0114] This invention provides an adjustment device for the sidewall structure of a cylindrical light guide, comprising:

[0115] The acquisition module is used to acquire the dimensional parameters of the light guide post, including: the diameter of the light inlet / outlet surface, the height of the light guide post, the refractive index of the light guide post, and the incident angle of the incident light.

[0116] The first calculation module is used to calculate the total internal reflection angle of the light guide column based on the law of refraction, the refractive index of the light guide column, and the refractive index of air; and to calculate the refraction angle of the refracted light ray refracted through the incident surface of the light guide column in combination with the incident angle of the incident light ray.

[0117] The second calculation module is used to obtain the first tilt angle range of the sidewall of the light guide column based on the refraction angle and the total reflection angle when the complementary angle of the refraction angle is less than the total reflection angle.

[0118] The third calculation module is used to calculate the position of the first incident light ray from the edge of the light guide column after refraction by the incident surface and the diameter of the incident surface, which is denoted as the first position.

[0119] The execution module is used to adjust the sidewall of the light guide column from the first position toward the bottom surface of the light guide column according to the first tilt angle range to form a first tilt surface, so that the refracted light undergoes total internal reflection on the first tilt surface.

[0120] Optionally, the device further includes: a second inclined surface forming module, configured to perform the following steps when the complementary angle of the refraction angle is greater than or equal to the total reflection angle:

[0121] The line connecting the target light-emitting point on the light-emitting surface of the light guide column to the first position is the first line. Based on the first angle formed by the first line and the side wall of the light guide column, the side wall of the light guide column is adjusted from the first position to the bottom surface of the light guide column to form a second inclined surface, so that the refracted light can be totally reflected on the second inclined surface and hit the target light-emitting point.

[0122] Optionally, the device further includes: a third tilting surface forming module, configured to, after forming the first tilting surface by adjusting the sidewall of the light guide post according to a first tilting angle range in a direction from the first position toward the bottom surface of the light guide post, further include the following steps:

[0123] Based on the refraction angle and the diameter of the incident surface, calculate the position where the edge light rays of the light guide column first incident on the first inclined surface after being refracted by the incident surface, and record it as the second position;

[0124] The line connecting the target light-emitting point on the light-emitting surface of the light guide column and the second position is the second line. Based on the second angle formed by the second line and the first inclined surface, the sidewall of the light guide column is adjusted from the second position to the bottom surface of the light guide column to form a third inclined surface, so that the refracted light can be totally reflected on the third inclined surface and hit the target light-emitting point.

[0125] Optionally, the direction from the first position to the bottom surface of the light guide includes:

[0126] When the first position is above the middle height of the light guide column and close to the light incident surface of the light guide column, the direction from the first position to the light incident surface of the light guide column is tilted from the first position to the central axis of the light guide column to form a frustum shape, and the side wall of the light guide column is adjusted.

[0127] When the first position is below the middle height of the light guide column and close to the light emitting surface of the light guide column, increase the diameter of the light guide column away from the central axis of the light guide column from the direction of the light incident surface pointing to the first position of the light guide column, and adjust the side wall of the light guide column.

[0128] Optionally, the second calculation module further includes a second calculation unit for performing the steps of obtaining the first tilt angle range of the sidewall of the light guide post based on the refraction angle and the total reflection angle:

[0129] Obtain the complementary angle of the refraction angle based on the refraction angle;

[0130] The difference between the complementary angle of refraction and the total reflection angle is the minimum tilt angle within the first tilt angle range.

[0131] Optionally, the second inclined surface forming module is used to perform the following steps to form the second inclined surface by adjusting the sidewall of the light guide post in a direction pointing from the first position to the bottom surface of the light guide post, based on the first angle formed by the first connecting line and the sidewall of the light guide post:

[0132] When the first included angle is less than the refraction angle, the tilt angle of the second tilted surface is the difference between the first included angle and the refraction angle, and the second tilted surface is tilted towards the central axis of the guide column.

[0133] When the first included angle is greater than the angle of refraction, the complementary angle of the first included angle is greater than the angle of total reflection, and the complementary angle of the angle of refraction is greater than the angle of total reflection, the tilt angle of the second tilted surface is the difference between the complementary angle of the angle of refraction and the complementary angle of the first included angle, and the second tilted surface is tilted away from the central axis of the light guide post.

[0134] When the first included angle is greater than the angle of refraction, the complementary angle of the first included angle is less than the angle of total reflection, and the complementary angle of the angle of refraction is greater than the angle of total reflection, the tilt angle of the second tilted surface is the difference between the complementary angle of the angle of refraction and the angle of total reflection, and the second tilted surface is tilted away from the central axis of the light guide post.

[0135] No adjustment is made when the first included angle is greater than the angle of refraction, the complementary angle of the first included angle is less than the angle of total reflection, and the complementary angle of the angle of refraction is equal to the angle of total reflection, or when the first included angle is equal to the angle of refraction.

[0136] Optionally, the third inclined surface forming module is further configured to perform the following steps to form the third inclined surface by adjusting the sidewall of the light guide post in a direction pointing from the second position toward the bottom surface of the light guide post, based on the second included angle formed by the second connecting line and the first inclined surface:

[0137] When the second included angle is less than the complementary angle of the reflection angle of the refracted ray on the first inclined surface and greater than the angle between the first inclined surface and the side wall, and the reflection angle of the refracted ray on the first inclined surface is greater than or equal to the total internal reflection angle, the inclination angle of the third inclined surface is the difference between the complementary angle of the reflection angle of the refracted ray on the first inclined surface and the second included angle; the third inclined surface is inclined in the direction of the central axis of the guide column.

[0138] When the second included angle is greater than the complementary angle of the reflection angle of the refracted ray on the first inclined surface, the second included angle is less than the complementary angle of the total internal reflection angle, and the reflection angle of the refracted ray on the first inclined surface is greater than the total internal reflection angle, the tilt angle of the third inclined surface is the difference between the reflection angle of the refracted ray on the first inclined surface and the second included angle; the third inclined surface is tilted away from the central axis of the light guide post.

[0139] When the second included angle is greater than the complementary angle of the reflection angle of the refracted ray on the first inclined surface, the second included angle is greater than the complementary angle of the total internal reflection angle, and the reflection angle of the refracted ray on the first inclined surface is greater than the total internal reflection angle, the tilt angle of the third inclined surface is the difference between the reflection angle of the refracted ray on the first inclined surface and the total internal reflection angle; the third inclined surface is tilted away from the central axis of the light guide post.

[0140] No adjustment is made when the second included angle is greater than the complementary angle of the reflection angle of the refracted ray on the first inclined surface, the second included angle is greater than or equal to the complementary angle of the total internal reflection angle, and the reflection angle of the refracted ray on the first inclined surface is equal to the total internal reflection angle; or, when the second included angle is equal to the complementary angle of the reflection angle of the refracted ray on the first inclined surface; or, when the second included angle is greater than the angle between the first inclined surface and the side wall.

[0141] The adjustment device for the sidewall structure of the cylindrical light guide provided in this embodiment of the invention can execute the adjustment method for the sidewall structure of the cylindrical light guide provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0142] This invention provides a light guide column based on a cylindrical light guide column, comprising an incident light surface, an exit light surface, and a sidewall. The sidewall is adjusted based on the adjustment method of the cylindrical light guide column sidewall structure in any embodiment of this invention.

[0143] Figure 11 This is a schematic diagram illustrating the change in light guiding efficiency of the light guide post proposed in this embodiment of the invention compared to existing light guide posts, as a function of the incident angle. Figure 11 As shown, the current light guide pillar does not utilize the above design methods for light input optimization. Therefore, as the incident light angle increases, the light transmission efficiency decreases significantly. Please refer to [reference needed]. Figure 11 The light guide post design in this invention adjusts the shape of the light guide post through the above-described method, significantly improving the light guide post's transmission efficiency. Figure 11 We can see that the transmission efficiency of the newly designed light guide column is significantly superior to that of the existing light guide column, and it is also close to the limit of incident light. The limit of incident light of a light guide column is the limit of the luminous flux at the incident surface of the light guide column. This value can be obtained through vector calculation (under the same light source and fixed incident area, the incident light limit is related to the angle between the incident light and the normal to the incident surface. The angle between the incident light and the normal to the incident surface can be described by vectors, and the incident light limit can be calculated using the concept of flux. For example, at 0 degrees of incidence, the light flux is the maximum). This new design method can effectively improve the performance of the photosensitive element and expand the reception of light from different angles, reduce the limitation on the direction of light intake, and reduce the possibility of misjudging ambient light or infrared light.

[0144] This method can be applied to light guides of various light-gathering types. By adjusting the shape of the light guide, light-gathering efficiency can be improved, ensuring that light from different incident angles hits the sensor or target, thereby enhancing the module's photosensitivity and reducing the probability of false alarms. Its design can be applied to infrared receivers and configured in most current home appliances or electronic devices that use infrared receivers. Through this proposal, the angle at which the receiver can receive signals and the signal strength over large angles can be increased. Furthermore, ambient light sensors (ALS) can be configured in smart doorbells, smart appliances, and smart homes to more accurately detect external ambient light levels, thereby achieving energy-saving benefits such as waking up appliances, providing supplemental lighting, or adjusting the brightness of lights or screens.

[0145] Infrared receivers typically have a large opening in their structure, using a thin, infrared-transmitting optical shell to allow external remote controls or infrared signal sources to directly transmit signals to the receiver. However, with the rapid advancements in electronic products in recent years, consumers are increasingly concerned with design as well as functionality. This has reduced the likelihood of having openings in the exterior, and even when necessary, the size of the opening is reduced to meet aesthetic requirements. Consequently, the traditional cylindrical light guide design is widely used in these products. Ambient light sensors (ALS) have a wide range of applications, including smart doorbells, smart displays, and mobile phones. These sensors transmit ambient brightness information back to the backend, allowing smart devices to determine whether to wake up the device or adjust the display brightness to meet the user's current operational or lighting needs, while also reducing unnecessary battery consumption.

[0146] In summary, the method and apparatus for adjusting the light guide column and the sidewall structure of the cylindrical light guide column proposed in the embodiments of the present invention include: obtaining the dimensional parameters of the light guide column, including: the diameter of the light-incident / light-out surface, the height of the light guide column, the refractive index of the light guide column, and the incident angle of the incident light; calculating the total internal reflection angle of the light guide column based on the law of refraction, according to the refractive index of the light guide column and the refractive index of air; and calculating the refraction angle of the refracted light ray refracted by the light-incident surface of the light guide column in combination with the incident angle of the incident light; when the complementary angle of the refraction angle is less than the total internal reflection angle, obtaining the first tilt angle range of the sidewall of the light guide column according to the refraction angle and the total internal reflection angle; calculating the position of the edge light ray of the light guide column that first enters the sidewall of the light guide column after refraction by the light-incident surface based on the refraction angle and the diameter of the light-incident surface, and recording it as the first position; adjusting the sidewall of the light guide column from the first position to the bottom surface of the light guide column according to the first tilt angle range to form a first tilt surface, so that the refracted light ray undergoes total internal reflection on the first tilt surface. Therefore, when the incident angle increases, the incident angle of the refracted light to the sidewall can be changed by altering the shape of the sidewall of the cylindrical light guide, so that the refracted light can still undergo total internal reflection on the sidewall, reducing light energy loss and improving light guiding efficiency.

[0147] Figure 12 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0148] It can be understood that the above adjustment method can be programmed into the processor 11 (or stored in the storage medium). Then, it can be executed by the processor 11 in conjunction with the electronic device 10.

[0149] like Figure 12As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 can also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0150] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0151] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the adjustment method of the cylindrical light guide pillar sidewall structure.

[0152] In some embodiments, the method for adjusting the sidewall structure of the cylindrical light guide pillar can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for adjusting the sidewall structure of the cylindrical light guide pillar described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the method for adjusting the sidewall structure of the cylindrical light guide pillar by any other suitable means (e.g., by means of firmware).

[0153] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0154] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0155] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0156] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0157] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0158] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0159] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0160] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for adjusting the sidewall structure of a cylindrical light guide post, characterized in that, The method comprises: acquiring size parameters of the light guide column, the size parameters comprising: diameter of the light-in / light-out surface, height of the light guide column, refractive index of the light guide column, and incident angle of the incident light; calculating, based on the refraction law, total reflection angle of the light guide column according to the refractive index of the light guide column and the refractive index of air, and calculating refraction angle of the refracted light according to the incident angle of the incident light and the total reflection angle of the light guide column; when the complementary angle of the refraction angle is less than the total reflection angle, acquiring first inclination angle range of the sidewall of the light guide column according to the refraction angle and the total reflection angle; calculating, based on the refraction angle and the diameter of the light-in surface, first position where the edge light of the light guide column is incident to the sidewall of the light guide column for the first time after being refracted by the light-in surface; adjusting the sidewall of the light guide column according to the first inclination angle range from the first position to the direction of the bottom surface of the light guide column to form a first inclined surface so that the refracted light is totally reflected on the first inclined surface; wherein the direction from the first position to the bottom surface of the light guide column comprises: when the first position is above the middle height of the light guide column and close to the light-in surface of the light guide column, the direction from the first position to the light-in surface of the light guide column is inclined to the center axis direction of the light guide column to form a circular truncated cone shape, and the sidewall of the light guide column is adjusted; when the first position is below the middle height of the light guide column and close to the light-out surface of the light guide column, the direction from the light-in surface to the first position of the light guide column is away from the center axis direction of the light guide column to increase the diameter of the light guide column, and the sidewall of the light guide column is adjusted.

2. The method of claim 1, wherein the cylindrical light guide pillar sidewall structure is adjusted by, when the complementary angle of the refraction angle is greater than or equal to the total reflection angle, the method further comprises: a first line is formed between the target light-out point of the light-out surface of the light guide column and the first position, and the sidewall of the light guide column is adjusted according to the first included angle between the first line and the sidewall of the light guide column from the direction of the bottom surface of the light guide column to the first position to form a second inclined surface so that the refracted light is totally reflected on the second inclined surface and can also hit the target light-out point.

3. The method of claim 1, wherein the cylindrical light guide pillar sidewall structure is adjusted by, after the sidewall of the light guide column is adjusted according to the first inclination angle range from the direction of the bottom surface of the light guide column to the first position to form the first inclined surface, the method further comprises: a second position is calculated based on the refraction angle and the diameter of the light-in surface, where the edge light of the light guide column is incident to the first inclined surface for the first time after being refracted by the light-in surface; a second line is formed between the target light-out point of the light-out surface of the light guide column and the second position, and the sidewall of the light guide column is adjusted according to the second included angle between the second line and the first inclined surface from the direction of the bottom surface of the light guide column to the second position to form a third inclined surface so that the refracted light is totally reflected on the third inclined surface and can also hit the target light-out point.

4. The method of claim 1, wherein the cylindrical light guide pillar sidewall structure is adjusted by, acquiring the first inclination angle range of the sidewall of the light guide column according to the refraction angle and the total reflection angle comprises: acquiring the complementary angle of the refraction angle based on the refraction angle; The difference between the complementary angle of the refraction angle and the total reflection angle is the minimum inclination angle in the first inclination angle range.

5. The method of claim 2, wherein the cylindrical light guide pillar sidewall structure is adjusted by, According to a first included angle formed between the first line and the sidewall of the light guide column, a direction from the first position to the bottom surface of the light guide column is adjusted to form a second inclined surface on the sidewall of the light guide column. When the first included angle is smaller than the refraction angle, the inclination angle of the second inclined surface is the difference between the first included angle and the refraction angle, and the second inclined surface is inclined toward the central axis of the light guide column. When the first included angle is greater than the refraction angle, the complementary angle of the first included angle is greater than the total reflection angle, and the complementary angle of the refraction angle is greater than the total reflection angle, the inclination angle of the second inclined surface is the difference between the complementary angle of the refraction angle and the complementary angle of the first included angle, and the second inclined surface is inclined away from the central axis of the light guide column. When the first included angle is greater than the refraction angle, the complementary angle of the first included angle is smaller than the total reflection angle, and the complementary angle of the refraction angle is greater than the total reflection angle, the inclination angle of the second inclined surface is the difference between the complementary angle of the refraction angle and the total reflection angle, and the second inclined surface is inclined away from the central axis of the light guide column. When the first included angle is greater than the refraction angle, the complementary angle of the first included angle is smaller than the total reflection angle, and the complementary angle of the refraction angle is equal to the total reflection angle, or the first included angle is equal to the refraction angle, no adjustment is performed.

6. The method of claim 3, wherein the cylindrical light guide pillar sidewall structure is adjusted by, According to a second included angle formed between the second line and the first inclined surface, a direction from the second position to the bottom surface of the light guide column is adjusted to form a third inclined surface on the sidewall of the light guide column. When the second included angle is smaller than the complementary angle of the refraction angle of the refracted light on the first inclined surface, and the refraction angle of the refracted light on the first inclined surface is greater than or equal to the total reflection angle, the inclination angle of the third inclined surface is the difference between the complementary angle of the refraction angle of the refracted light on the first inclined surface and the second included angle; the third inclined surface is inclined toward the central axis of the light guide column. When the second included angle is greater than the complementary angle of the refraction angle of the refracted light on the first inclined surface, the second included angle is smaller than the complementary angle of the total reflection angle, and the refraction angle of the refracted light on the first inclined surface is greater than the total reflection angle, the inclination angle of the third inclined surface is the difference between the refraction angle of the refracted light on the first inclined surface and the second included angle; the third inclined surface is inclined away from the central axis of the light guide column. When the second included angle is greater than the complementary angle of the refraction angle of the refracted light on the first inclined surface, the second included angle is greater than the complementary angle of the total reflection angle, and the refraction angle of the refracted light on the first inclined surface is greater than the total reflection angle, the inclination angle of the third inclined surface is the difference between the refraction angle of the refracted light on the first inclined surface and the total reflection angle; the third inclined surface is inclined away from the central axis of the light guide column. When the second included angle is greater than the complementary angle of the reflection angle of the refracted light on the first inclined surface, the second included angle is greater than or equal to the complementary angle of the total reflection angle, and the reflection angle of the refracted light on the first inclined surface is equal to the total reflection angle, or when the second included angle is equal to the complementary angle of the reflection angle of the refracted light on the first inclined surface, no adjustment is performed.

7. An adjustment device for a cylindrical light guide post sidewall structure, characterized by, Comprise: The acquisition module is used for acquiring the size parameters of the light guide column, and the size parameters comprise: an in / out light surface diameter, a light guide column height, a light guide column refractive index, and an incident angle of incident light; The first calculation module is used for calculating, based on a refraction law, a total reflection angle of the light guide column according to the light guide column refractive index and the refractive index of air, and calculating a refraction angle of refracted light of the light guide column according to the incident angle of the incident light; The second calculation module is used for acquiring a first inclined angle range of a side wall of the light guide column according to the refraction angle and the total reflection angle when the complementary angle of the refraction angle is less than the total reflection angle; The third calculation module is used for calculating, based on the refraction angle and the in / out light surface diameter, a first position of an edge light of the light guide column after the edge light is refracted through the in / out light surface and first incident to the side wall of the light guide column, and the first position is recorded as a first position; The execution module is used for adjusting the side wall of the light guide column according to the first inclined angle range from a direction of the first position to a bottom surface of the light guide column to form a first inclined surface, so that the refracted light is totally reflected on the first inclined surface; Wherein, from the direction of the first position to the bottom surface of the light guide column, comprising: When the first position is located above the middle height of the light guide column and close to the in / out light surface of the light guide column, from the direction of the first position to the in / out light surface of the light guide column, the direction is inclined to the center axis direction of the light guide column to form a circular truncated cone, and the side wall of the light guide column is adjusted; When the first position is located below the middle height of the light guide column and close to the out light surface of the light guide column, from the direction of the in / out light surface to the first position of the light guide column, the diameter of the light guide column is increased away from the center axis direction of the light guide column, and the side wall of the light guide column is adjusted.

8. A light guide post, characterized by The light guide column based on the cylindrical light guide column comprises an in light surface, an out light surface and a side wall, and the side wall is adjusted based on the adjustment method of the cylindrical light guide column side wall structure according to any one of claims 1-6.

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