Eye protection lamp

Abstract

The utility model relates to an eye protection lamp which comprises a light source provided with a light emitting face. The optical film is arranged on the light emitting surface, the optical film comprises a base material and a plurality of optical bodies, the base material is connected with the light emitting surface, the base material is provided with an optical base surface far away from the light source, the optical bodies are arranged on the optical base surface side by side in the first direction of the base material, and each optical body comprises a first optical surface and a second optical surface; the first optical surface and the second optical surface are arranged in an inclined manner relative to the optical base surface; a first included angle formed between the first optical surface and the optical base surface is larger than or smaller than a second included angle formed between the second optical surface and the optical base surface. The problem of illumination waste caused by the fact that part of illumination light falls outside a desktop illumination area is avoided, more sufficient illumination light works in the desktop illumination area, the illumination requirement of a user is met, and the problem that glare is generated due to the fact that part of light directly irradiates the eyes of the user when the angle of a light source is rotated and adjusted is also avoided. And the vision health of the user is protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting devices, and particularly relates to an eye-protecting lamp. BACKGROUND

[0002] The advent of lighting devices brings great convenience to people's work, study and life, and meets the lighting needs of people in various scenes. However, most of the lighting devices have the trend that the light intensity of the middle region is large, and the light intensity of the edge region gradually decreases when the light source is not specially processed. This phenomenon will bring some problems to the actual use. For example, for an eye-protecting desk lamp, if the light-emitting surface of the light source is arranged parallel to the desktop, a part of the high-intensity lighting light will fall outside the desktop illumination area, causing light waste. In view of this, some eye-protecting desk lamps are designed with adjustable rotating mechanisms, and the posture of the light source is adjusted by adjusting the adjustable rotating mechanism to make the light-emitting surface inclined to the user and the desktop illumination area. However, this way will cause the light emitted from the edge region of the light source to directly shine into the user's eyes, causing glare problems, which will harm the user's eyesight. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide an eye-protecting lamp to solve the problems of light waste and glare affecting eyesight.

[0004] The present application provides an eye-protecting lamp, which comprises:

[0005] a light source having a light-emitting surface; and

[0006] an optical film arranged on the light-emitting surface, wherein the optical film comprises a substrate and a plurality of optical bodies, the substrate is connected with the light-emitting surface, and the substrate has an optical base surface away from the light source, the plurality of optical bodies are arranged side by side on the optical base surface along a first direction of the substrate, each of the optical bodies comprises a first optical surface and a second optical surface, and the first optical surface and the second optical surface are both arranged obliquely relative to the optical base surface.

[0007] The first included angle between the first optical surface and the optical base surface is greater than or less than the second included angle between the second optical surface and the optical base surface.

[0008] The eye-protecting lamp of the present application is characterized in that an optical film is installed on the light emitting surface of the light source. The optical film is composed of a substrate and a plurality of optical bodies formed on the substrate. The optical bodies have a first optical surface and a second optical surface, both of which are arranged in an inclined manner with respect to the optical base surface. The first optical surface and the second optical surface form a first included angle and a second included angle with the optical base surface, respectively. The first included angle is different from the second included angle. When the light emitted from the light emitting surface passes through the light emitting base surface and reaches the first optical surface and the second optical surface, interface reflection and refraction occur on the first optical surface and the second optical surface. As a result, the propagation path of the light is changed. The light emitted from the first optical surface and the second optical surface can be more concentrated and converged in the desktop lighting area. On the one hand, this avoids the waste of light caused by the light falling outside the desktop lighting area. On the other hand, more sufficient light works in the desktop lighting area to meet the lighting needs of the user. At the same time, the problem of glare caused by the direct light to the user's eyes is avoided, and the user's eyesight is protected.

[0009] The technical solutions of the present application are further described as follows:

[0010] In one embodiment, the eye-protecting lamp further comprises a mounting member. The optical film is mounted on the light emitting surface through the mounting member.

[0011] In one embodiment, the mounting member is optical adhesive. The optical film is fixed on the light emitting surface through the optical adhesive.

[0012] In one embodiment, the mounting member is a window frame. The window frame is arranged on the light emitting surface. The window frame is provided with a light emitting window opposite to the light emitting surface. The window frame is further provided with a mounting port in communication with the light emitting window. The optical film is arranged between the light emitting surface and the light emitting window through the mounting port.

[0013] In one embodiment, the light emitted by the light source has a first light beam. The first light beam is incident on the first optical surface and the second optical surface from the outside of the optical body to form interface reflection.

[0014] In one embodiment, the light emitted by the light source has a second light beam. The second light beam is incident on the first optical surface and the second optical surface from the inside of the optical body to form refraction.

[0015] In one embodiment, the optical body is formed by UV curing process using optical glue.

[0016] In one of the embodiments, the eye-protecting lamp further comprises a lamp holder and a support, the support is arranged on the lamp holder, and the light source is arranged on the support.

[0017] In one of the embodiments, the eye-protecting lamp further comprises a mounting base and a hanging support, one end of the hanging support is arranged on the mounting base, and the other end of the hanging support is connected with the light source.

[0018] In one of the embodiments, a first included angle between the first optical surface and the optical base surface is R1, and 80°≥R1≥45°;

[0019] A second included angle between the second optical surface and the optical base surface is R2, and 60°≥R2≥30°;

[0020] The side of the first optical surface away from the optical base surface is connected with the side of the second optical surface away from the optical base surface to form a vertex, a vertical distance from the vertex to the optical base surface is H, and 1mm≥H≥0.05mm. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve the purpose of explaining the present application, and do not constitute improper limitations to the present application.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other accompanying drawings can be obtained without creative labor on the basis of these accompanying drawings.

[0023] Figure 1 The structure schematic diagram of the eye-protecting lamp in an embodiment of the present application in a use state placed on a desk.

[0024] Figure 2 For Figure 1 The partial enlarged structure schematic diagram of A in FIG.

[0025] Figure 3 The partial structure schematic diagram of the optical film in an embodiment.

[0026] Explanation of the reference signs:

[0027] 100, eye protection lamp; 10, light source; 11, light exit surface; 12, first light beam; 13, second light beam; 20, optical film; 21, substrate; 211, optical base surface; 22, optical body; 221, first optical surface; 222, second optical surface; 30, lamp holder; 40, support; 200, desk; 210, desk lighting area. DETAILED DESCRIPTION

[0028] In order to make the above objectives, features and advantages of the present application more clear and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" or the like between a first feature and a second feature, it can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or it can only mean that the first feature is horizontally higher than the second feature. The first feature can be directly below or obliquely below the second feature, or it can only mean that the first feature is horizontally lower than the second feature.

[0033] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a mediating element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a mediating element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and the like used in the present application are only for illustrative purposes and do not represent the only implementation.

[0034] In conventional technology, most lighting devices have a light-emitting surface of the light source 10 that presents a trend of higher light intensity in the middle region and gradually decreasing light intensity near the edge region, which can cause some problems in actual use. For example, for an eye-protecting desk lamp, if the light-emitting surface 11 of the light source 10 is arranged parallel to the desktop, some of the high-intensity illuminating light will fall outside the desktop illuminating area 210, causing light waste. In response to this, some eye-protecting desk lamps are designed with an adjustable rotating mechanism for the light source 10, which can be adjusted to tilt the posture of the light source 10 so that the light-emitting surface 11 is inclined toward the desktop illuminating area 210. However, this approach can cause the light emitted from the edge region of the light source 10 to directly hit the user's eyes, causing glare and affecting vision health.

[0035] In response to the above problems, the present application proposes a new structure of an eye-protecting lamp 100, which adds an optical film 20 to the light-emitting surface 11 of the light source 10. The first optical surface 221 and the second optical surface 222 of the inclined structure provided on the optical film 20 form an interface reflection and refraction intervention to the emitted illuminating light, so as to change the light path, so that more illuminating light can be concentrated within the set desktop illuminating area 210, meeting the lighting needs, avoiding light waste and glare problems, and protecting the user's vision health.

[0036] Referring to Figure 1 An eye-protecting lamp 100 according to an embodiment of the present application includes a light source 10 and an optical film 20.

[0037] The light source 10 can be a mature lighting device in the prior art, for example, the light source 10 in the present application specifically adopts an LED light source. The LED light source can include but is not limited to a shell, a circuit board, and a light emitter, the circuit board is installed in the shell, and the light emitter is installed on the circuit board. The light emitter is powered on to light up and emit illumination light outward.

[0038] In order to achieve better lighting effect and save energy, the light emitter can adopt any one of LED lamp beads, LED lamp strips, and LED lamp strips.

[0039] Please continue to refer to Figure 2 and Figure 3 The light source 10 has a light emitting surface 11; the optical film 20 is arranged on the light emitting surface 11, and the optical film 20 includes a base material 21 and a plurality of optical bodies 22, the base material 21 is connected with the light emitting surface 11, and the base material 21 has an optical base surface 211 away from the light source 10, the plurality of optical bodies 22 are arranged side by side on the optical base surface 211 along a first direction of the base material 21, each optical body 22 includes a first optical surface 221 and a second optical surface 222, and the first optical surface 221 and the second optical surface 222 are both arranged obliquely relative to the optical base surface 211.

[0040] Among them, the first included angle between the first optical surface 221 and the optical base surface 211 is greater than or less than the second included angle between the second optical surface 222 and the optical base surface 211.

[0041] The base material 21 can be selected from any one of polycarbonate (PC, the abbreviation of Polycarbonate), polyethylene terephthalate (PET, the abbreviation of Polyethylene terephthalate), polystyrene (PS, the abbreviation of Polystyrene), polyethylene (PE, the abbreviation of Polyethylene), and polymethyl methacrylate (PMMA, the abbreviation of Polymethyl methacrylate). The thickness of the base material 21 is generally 100 μm~300 μm.

[0042] In addition, the optical body 22 in the present application is formed by UV (Ultra-Violet, ultraviolet) curing process with optical glue. In this way, the forming method and process of the optical body 22 are simple, which reduces the manufacturing difficulty and cost, and at the same time, the combination firmness of the optical body 22 and the base material 21 is good, which improves the overall structural performance of the optical film 20 and enhances the durability of the optical film 20.

[0043] UV curing generally refers to the curing conditions or requirements of paints, inks, adhesives (glue), or other potting sealants that need to be cured with ultraviolet light, which is different from heating curing, adhesive (curing agent) curing, and natural curing.

[0044] In summary, the implementation of the technical scheme of the embodiment will have the following beneficial effects: in the eye protection lamp 100 of the present scheme, the optical film 20 is installed on the light emitting surface 11 of the light source 10. The optical film 20 is composed of a substrate 21 and a plurality of optical bodies 22 formed on the substrate 21. The optical body 22 has a first optical surface 221 and a second optical surface 222, both of which are arranged in an inclined manner with the optical base surface 211. The first included angle between the first optical surface 221 and the optical base surface 211 is not equal to the second included angle between the second optical surface 222 and the optical base surface 211. Therefore, when the illumination light emitted from the light emitting surface 11 passes through the light emitting base surface to the first optical surface 221 and the second optical surface 222, interface reflection and refraction will occur on the first optical surface 221 and the second optical surface 222, thereby changing the propagation path of the light. The illumination light finally emitted from the first optical surface 221 and the second optical surface 222 can be more concentrated and converged and irradiated within the desktop illumination area 210. On the one hand, it avoids the problem of light waste caused by some illumination light falling outside the desktop illumination area 210. On the other hand, more sufficient illumination light works in the desktop illumination area 210 to meet the lighting needs of the user, while avoiding the problem of glare caused by some light directly shining on the user's eyes when the angle of the light source 10 is adjusted, thereby protecting the user's eyesight.

[0045] Please continue to refer to Figure 3 , it is easy to understand that the cross section of the optical body 22 in the present application is a non-isosceles triangle. For example, in one embodiment, the first included angle between the first optical surface 221 and the optical base surface 211 is set as R1, and 80°≥R1≥45°.

[0046] The second included angle between the second optical surface 222 and the optical base surface 211 is set as R2, and 60°≥R2≥30°.

[0047] The side of the first optical surface 221 away from the optical base surface 211 is connected to the side of the second optical surface 222 away from the optical base surface 211 to form a vertex. The perpendicular distance from the vertex to the optical base surface 211 is set as H, and 1mm≥H≥0.05mm.

[0048] Since the propagation of the illumination light is affected by factors such as the distance between the light source 10 and the desktop illumination area 210, the inclined angle of the first optical surface 221 and the second optical surface 222, etc., different eye protection lamps 100 can be obtained by reasonably designing the parameter values of R1, R2 and H, thereby meeting different user needs.

[0049] Taking the eye-care lamp 100 as an example, the new national standard GB / T 9473-2022 revises the performance requirements of reading and writing table lamps, and the important changes mainly focus on the effective illumination calculation area, the uniformity of illumination and the frequency flicker. The new standard defines the effective illumination area as a total rectangular area of 700mm*500mm, of which a 500mm*300mm area is defined as the central area, and the uniformity requirement is more stringent. The new national standard stipulates that the uniformity of illumination in the central area should be ≤3, and the uniformity of illumination in the total area should be ≤7. This means that the table lamp meeting the new national standard can cover a larger desktop, providing more comfortable and practical features.

[0050] Based on the above, in order to make the brightness center point of the eye-care lamp 100 closer to the user direction, so that 90% or more of the illumination light can fall on the desktop illumination area 210, achieving better illumination effect. Taking a conventional height of 500mm as an example, when the table lamp height is 400mm, R1=67°, R2≥45° is the optimal implementation scheme.

[0051] Please continue to refer to Figure 3 On the basis of any of the above embodiments, the light emitted by the light source 10 has a first light beam 12, which is irradiated from the outside of the optical body 22 to the first optical surface 221 and the second optical surface 222 to form an interface reflection. After the interface reflection of the first optical surface 221 and the second optical surface 222, the light path of the light of the first light beam 12 is changed, so that the diffusion angle of the light is expanded, so that the light can converge towards the desktop illumination area 210, obtaining better illumination effect, avoiding light waste, and at the same time preventing the problem of glare caused by the straight light of the edge area of the light emitting surface 11 to the user's eye after rotating and adjusting the angle of the light source 10, which can cause harm to the user's vision health.

[0052] Further, the light emitted by the light source 10 also has a second light beam 13, which is irradiated from the inside of the optical body 22 to the first optical surface 221 and the second optical surface 222 to form refraction. Similarly, after the refraction of the first optical surface 221 and the second optical surface 222, the light path of the light of the second light beam 13 can also be changed, so that the diffusion angle of the light is expanded, and at the same time more light can be converged towards the desktop illumination area 210, avoiding the waste of light falling outside the desktop illumination area 210, and also avoiding the problem of glare that can harm the user's vision health.

[0053] In order to realize the installation and fixation of the optical film 20 to the light emitting surface 11 of the light source 10, the eye-care lamp 100 further comprises a mounting member, and the optical film 20 is installed on the light emitting surface 11 through the mounting member.

[0054] For example, in an alternative embodiment, the mounting member employs optical glue, and the optical film 20 is fixed to the light emitting surface 11 by the optical glue. Specifically, the substrate 21 on the side away from the optical body 22 is fixed to the light emitting surface 11 by the optical glue, and the mounting is simple, the connection strength is high, and the optical glue does not interfere with the propagation of light between the light source 10 and the optical body 22.

[0055] Alternatively, in another alternative embodiment, the mounting member employs a window frame, the window frame is arranged on the light emitting surface 11, the window frame is provided with a light emitting window opposite to the light emitting surface 11, and the window frame is further provided with a mounting opening in communication with the light emitting window, and the optical film 20 is arranged between the light emitting surface 11 and the light emitting window by being loaded into the window frame through the mounting opening.

[0056] In actual manufacture, the optical film 20 is inserted into the window frame from the side opening, and the optical film 20 is positioned in the window frame and between the light emitting surface 11 and the light emitting window, so that the light emitted from the light emitting surface 11 of the light source 10 can normally pass through the optical film 20 and be emitted from the light emitting window to the desktop lighting area 210, thereby meeting the lighting needs. The mounting of the optical film 20 is simple and convenient to disassemble, so that the eye protection lamp 100 forms different lighting effects when the optical film 20 is mounted or not mounted, thereby meeting the use requirements of different lighting occasions.

[0057] Please continue to refer to Figure 1 In addition, on the basis of any of the above embodiments, the eye protection lamp 100 further comprises a lamp holder 30 and a support 40, the support 40 is arranged on the lamp holder 30, and the light source 10 is arranged on the support 40. At this time, the lamp holder 30, the support 40 and the light source 10 cooperate to form an eye protection desk lamp, which can be directly placed on the desktop for use, and is convenient and flexible to use.

[0058] Alternatively, as an alternative to the above embodiments, another alternative embodiment of the eye protection lamp 100 further comprises a mounting seat and a hanging bracket, one end of the hanging bracket is arranged on the mounting seat, and the other end of the hanging bracket is connected with the light source 10. The mounting seat can be mounted on a wall, a ceiling or the like, so that the light source 10 can be hung and mounted through the hanging bracket, space is fully utilized, and the desktop space is reduced.

[0059] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0060] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An eye-care lamp, characterized in that The application relates to an eye-protecting lamp, which comprises the following parts: a light source with a light-emitting surface; and an optical film arranged on the light-emitting surface, wherein the optical film comprises a substrate and a plurality of optical bodies, the substrate is connected with the light-emitting surface, the substrate has an optical base surface away from the light source, the plurality of optical bodies are arranged side by side on the optical base surface along a first direction of the substrate, each of the optical bodies comprises a first optical surface and a second optical surface, and the first optical surface and the second optical surface are both arranged obliquely relative to the optical base surface. The first included angle between the first optical surface and the optical base surface is greater than or smaller than the second included angle between the second optical surface and the optical base surface.

2. The eye-care lamp of claim 1, wherein The eye-protecting lamp further comprises a mounting member, and the optical film is arranged on the light-emitting surface through the mounting member.

3. The eye-care lamp of claim 2, wherein, The mounting member is made of optical adhesive, and the optical film is fixed on the light-emitting surface through the optical adhesive.

4. The eye-care lamp of claim 2, wherein, The mounting member is made of a window frame, the window frame is arranged on the light-emitting surface, the window frame is provided with a light-emitting window opposite to the light-emitting surface, the window frame is further provided with a mounting opening in communication with the light-emitting window, the optical film is arranged between the light-emitting surface and the light-emitting window through the mounting opening and is arranged in the window frame.

5. The eye-care lamp of claim 1, wherein, The light emitted by the light source has a first light beam, the first light beam is irradiated on the first optical surface and the second optical surface from the outside of the optical body to form an interface reflection.

6. The eye-care lamp of claim 5, wherein, The light emitted by the light source also has a second light beam, the second light beam is irradiated on the first optical surface and the second optical surface from the inside of the optical body to form refraction.

7. The eye-care lamp of claim 1, wherein, The optical body is formed by a UV curing process through optical glue.

8. The eye-care lamp of claim 1, wherein, The eye-protecting lamp further comprises a lamp holder and a support, the support is arranged on the lamp holder, and the light source is arranged on the support.

9. The eye-care lamp of claim 1, wherein, The eye-protecting lamp further comprises a mounting seat and a hanging support, one end of the hanging support is arranged on the mounting seat, and the other end of the hanging support is connected with the light source.

10. The eye-care lamp of claim 1, wherein, The first included angle between the first optical surface and the optical base surface is R1, and 80 DEG >= R1 >= 45 DEG. The second included angle between the second optical surface and the optical base surface is R2, and 60 DEG >= R2 >= 30 DEG. The side of the first optical surface away from the optical base surface is connected with the side of the second optical surface away from the optical base surface to form a vertex, the perpendicular distance from the vertex to the optical base surface is H, and 1 mm >= H >= 0.05 mm.

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