Sensor and atmosphere lamp
By designing a lens composed of a concave lens part and a convex lens part, combined with an inclined photoelectric conversion part, the problem of limited sensor detection range and large light energy deviation is solved, and more accurate light signal detection is achieved.
Patent Information
- Application Number
- CN202421305674.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The detection range of existing ambient light sensors is limited, and the light energy deviation in different detection areas is large, resulting in inaccurate detection of light signals.
A sensor including a housing, a lens and a photoelectric conversion member is designed. The lens consists of a concave lens part and a convex lens part. The light-in and light-out surfaces of the lens are designed as concave and convex surfaces. The photoelectric conversion member is located in the inner cavity of the housing, and the lens and the photoelectric conversion are converted. The pieces are arranged inclined to receive and disperse light evenly.
Through the scattering of the concave lens part and the convergence of the convex lens part, uniform dispersion and convergence of the light rays are achieved, the detection range is expanded, the light energy deviation is reduced, and the detection accuracy of the light signal is improved.
Smart Images
Figure CN222438850U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of lamps, and in particular to a sensor and an atmosphere lamp. Background Art
[0002] The monitor's ambient light is used to provide additional lighting and rendering in the area surrounding the monitor. In particular, the luminous color of the ambient light is consistent with the color of the picture at the edge of the screen and changes synchronously, serving as a spatial extension of the picture to enhance the environmental atmosphere.
[0003] Generally speaking, the sensor of the atmosphere light is set in the border area of the display and tilted toward the screen. The problems are: first, the sensor can only detect the picture light in a limited range at the edge of the display, that is, only a small range on the screen can be used as the detection range. In some display images, the energy of the light transmitted from the detection range to the sensor is too low, so that the sensor cannot detect the light signal; second, because the sensor is tilted relative to the screen, the energy of the light entering the sensor in the area facing the sensor and the surrounding area on the screen is different. The light in the area facing the sensor is concentrated to a certain point on the light receiving surface of the photoelectric converter, and there is a deviation in the picture detection. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide a sensor, aiming to solve the technical problems of the existing sensors having a limited detection range on the display screen and a large deviation in light energy in different detection areas.
[0005] The embodiment of the present application is implemented as follows: a sensor includes a shell, a lens and a photoelectric converter, wherein the photoelectric converter is arranged in the inner cavity of the shell; the shell is provided with a mounting port connected to the inner cavity, and the lens is fixed in the mounting port; the lens has a light incident surface facing away from the photoelectric converter and a light emitting surface facing the photoelectric converter; wherein the lens includes a concave lens portion located in the center part, and a convex lens portion located around the concave lens portion.
[0006] In one embodiment, the light incident surface includes a first light incident surface provided on the concave lens portion, and a second light incident surface provided on the convex lens portion;
[0007] The first light incident surface is a concave surface, and / or at least a portion of the light emitting surface corresponding to the concave lens portion is a concave surface;
[0008] The second light incident surface is a convex surface.
[0009] In one embodiment, a concave portion is provided on a side of the lens facing the inner cavity, and at least a portion of an inner wall surface of the concave portion serves as the light emitting surface; and the photoelectric conversion element is at least partially located in the concave portion.
[0010] In one embodiment, the surface of the housing includes a fixing surface located on one side of the lens; the angle between the fixing surface and the light receiving surface of the photoelectric conversion element is an obtuse angle;
[0011] The reference surface is a symmetric surface of at least one of the light incident surface and the light emitting surface;
[0012] Wherein, the reference surface is perpendicular to the fixing surface and the light receiving surface of the photoelectric conversion element.
[0013] In one embodiment, the light emitting surface is a concave surface, and the light emitting surface intersects with the reference surface to define an intersection line, and the curvature of the intersection line gradually decreases in a direction approaching the fixing surface.
[0014] In one embodiment, the light receiving surface has a first center point, the light incident surface has a second center point, and a line connecting the first center point and the second center point is configured to be inclined close to the fixed surface in a direction from the second center point to the first center point.
[0015] In one embodiment, the sensor further comprises a circuit board, wherein the circuit board is fixedly disposed in the inner cavity, and the photoelectric converter is mounted on a surface of the circuit board facing the lens and is electrically connected to the circuit board.
[0016] In one embodiment, a positioning protrusion is provided on the peripheral side surface of the lens, and a positioning groove adapted to the positioning protrusion is provided on the inner peripheral wall of the mounting opening; or, a positioning protrusion is provided on the inner peripheral wall of the mounting opening, and a positioning groove adapted to the positioning protrusion is provided on the peripheral side surface of the lens.
[0017] In one embodiment, the shell includes a first cover body and a second cover body connected to each other, the inner cavity is defined between the first cover body and the second cover body, and the mounting port is arranged on the second cover body; the second cover body is provided with a first convex ring surrounding the lens, and the edge of the convex lens part is provided with a second convex ring, and the second convex ring is located on the side of the first convex ring facing the inner cavity.
[0018] Another purpose of an embodiment of the present application is to provide an atmosphere lamp, which includes a sensor as described in the above embodiments, and a light-emitting unit; the shell is used to be fixed to the frame of the display, the lens is used to receive light from the screen of the display, and the light-emitting unit is used to be fixed to the back of the display and emit light according to the control signal of the sensor.
[0019] The sensor and the atmosphere light provided in the embodiments of the present application have the following beneficial effects:
[0020] The sensor provided in the embodiment of the present application has a lens including a concave lens portion located in the center part and a convex lens portion located around the concave lens portion. Therefore, light on the screen of the display directly facing the center of the lens, that is, directly facing the concave lens portion, will be scattered after passing through the concave lens portion, so that the light is more evenly dispersed on the light receiving surface of the photoelectric conversion element; the convex lens portion around the concave lens portion has a converging effect on the light, and can refract light in a larger range on the screen into the lens, thereby avoiding the problem that some display screens cannot be detected due to insufficient light energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 is a schematic diagram of an ambient light provided by an embodiment of the present application installed on a display from a front view angle, wherein the light-emitting portion is hidden;
[0023] Figure 2 is a schematic diagram of a side view of an ambient light provided in an embodiment of the present application installed on a display;
[0024] Figure 3 is a three-dimensional angle schematic diagram of a sensor provided in an embodiment of the present application;
[0025] Figure 4 is a side view of a sensor provided in an embodiment of the present application;
[0026] Figure 5 is a top view of a sensor provided in an embodiment of the present application;
[0027] Figure 6 yes Figure 5 Sectional view along line AA;
[0028] Figure 7 is a top view of the sensor provided by an embodiment of the present application, wherein the first cover body and the circuit board of the housing are removed to expose the light emitting surface of the lens;
[0029] Figure 8 yes Figure 7 The enlarged view of point B in the middle;
[0030] Fig. 9 is a schematic diagram of an exploded view of a sensor provided in an embodiment of the present application at one angle;
[0031] Fig.10 is a schematic diagram of an exploded view of the sensor provided in an embodiment of the present application from another angle;
[0032] Fig.11 It is a schematic diagram of the coordination relationship between the lens, the circuit board, and the photoelectric converter in the sensor provided in the embodiment of the present application;
[0033] Fig.12 is a light path diagram of a lens and a photoelectric converter in a sensor provided in an embodiment of the present application;
[0034] Fig.13 is a bottom view of a lens in a sensor provided by an embodiment of the present application;
[0035] Fig.14 yes Fig.13 Cross-sectional view along line CC, where the cutting plane coincides with the reference plane.
[0036] The meanings of the marks in the figure are:
[0037] 300-display, 301-frame, 302-screen, 303-front, 304-back;
[0038] 200-ambience light, 9-light-emitting part, 91-light strip;
[0039] 100-sensor;
[0040] 4-adhesive layer;
[0041] 5-shell, 50-inner cavity, 51-installation opening, 511-positioning protrusion, 52-fixing surface, 54-first cover body, 541-limiting protrusion, 55-second cover body, 551-first convex ring;
[0042] 6-lens, 60-recessed portion, 61-light incident surface, 611-first light incident surface, 622-second light incident surface, 62-light exit surface, 63-positioning groove, 65-second convex ring, 66-concave lens portion, 67-convex lens portion;
[0043] 7-photoelectric conversion element, 71-light receiving surface;
[0044] 8-circuit board, 80-limiting card slot;
[0045] X-length direction, Y-width direction, Z-thickness direction, S-reference plane, T-intersection line, K-rotation axis;
[0046] P-first center point, Q-second center point. DETAILED DESCRIPTION
[0047] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0048] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly or indirectly fixed or disposed on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.
[0049] In order to illustrate the technical solution described in this application, a detailed description is given below in conjunction with specific drawings and embodiments.
[0050] See also Figure 1 and Figure 2 As shown, the embodiment of the present application first provides an atmosphere lamp 200, which is used to be set on a display 300 and emit light according to the display screen 302 of the display 300. Specifically, as Figure 2 As shown, the ambient light 200 includes a sensor 100 and a light emitting unit 9; see Figure 1 and Figure 2 As shown in , the sensor 100 is used to be fixed to the frame 301 of the display 300, and is used to receive light from the screen 302 of the display 300, wherein, Figure 2 and Fig.12 The dashed line represents light. Figure 2 As shown, the light emitting portion 9 is used to be fixed to the back surface 304 of the display 300 , and emits light according to the control signal of the sensor 100 , and the light of the light emitting portion 9 changes synchronously with the picture on the screen 302 .
[0051] like Figure 2 As shown, the light emitting unit 9 may include one or more light strips 91. In an optional embodiment, the light emitting unit 9 includes multiple light strips 91, and each light strip 91 is electrically connected. Among them, each light strip 91 can be electrically connected in parallel, or in series, or in a combination of series and parallel. The specific setting position of the light strip 91 is not limited, and the user can select the corresponding installation position as needed.
[0052] The outer contour of the display 300 is generally a regular shape, such as a rectangle, see Figure 1The display 300 has frames 301 on the top, bottom, left and right sides, and the sensor 100 can be disposed in at least one of the frames 301. Figure 1 As shown in FIG. , in one embodiment, the sensor 100 is disposed on the upper frame 301 .
[0053] It should be noted that the above-mentioned sensor 100 is not used to detect the light signal of the entire area on the screen 302, but only detects the light signal of the edge part of the screen 302, and transmits the light signal of this part to the light-emitting part 9 accordingly, so that the light-emitting part 9 lights up accordingly.
[0054] It should also be noted that the aforementioned four directions of "up", "down", "left" and "right" are all based on the orientation of the user when using the display 300, that is, on the display 300, the side corresponding to the left of the user is the left side, the side corresponding to the right of the user is the right side, the side corresponding to the upper side of the user is the upper side, and the side corresponding to the lower side of the user is the lower side. In addition, the display 300 also has front and rear directions. The side of the display 300 facing the user, that is, its front side 303, is located on the front side, and the screen 302 is set on the front side of the display 300; the back side 304 of the display 300 is located on the back side.
[0055] And, for ease of description and understanding, see Figure 1 and Figure 2 As shown, a spatial rectangular coordinate system XYZ is defined on the display 300, the X direction is the length direction of the display 300, that is, the left-right direction, the Y direction is the width direction of the display 300, that is, the up-down direction, and the X direction is the thickness direction of the display 300, that is, the front-back direction.
[0056] In the following, the sensor 100 is set on the upper frame 301 and is centered or approximately centered in the left and right directions. The positive direction of the Y direction is from the upper direction to the lower direction, and the positive direction of the Z direction is from the front to the rear. In the X direction, since the sensor 100 is centered or approximately centered, the setting of the positive direction of the X direction has little effect on the difference of the sensor 100, and is not particularly limited here.
[0057] See also Figure 3 , Figure 4 and Figure 6 As shown, the sensor 100 comprises a housing 5, a lens 6 and a photoelectric converter 7; the housing 5 is hollow inside to form an inner cavity 50. Figure 6 , Figure 7 and Fig.10 The housing 5 is also provided with a mounting port 51 communicating with the inner cavity 50, please refer to Figure 8 , Fig. 9 and Fig.10As shown; the photoelectric converter 7 is disposed in the inner cavity 50 of the housing 5, and the lens 6 is fixed in the mounting opening 51, please refer to Figure 6 , Figure 7 and Figure 8 The lens 6 has a light incident surface 61 facing away from the photoelectric converter 7 and a light emitting surface 62 facing the photoelectric converter 7, please refer to Fig.11 , Fig.13 and Fig.14 shown.
[0058] Please refer to Figure 2 and Fig.12 As shown, the light from the screen 302 enters the lens 6 from the light incident surface 61 , and is emitted from the light emitting surface 62 , and reaches the light receiving surface 71 of the photoelectric conversion element 7 .
[0059] Please refer to Figure 3 , Figure 4 and Figure 6 As shown, the surface of the housing 5 includes a fixing surface 52 located on one side of the lens 6. The fixing surface 52 is generally a plane and is used to be fixedly connected to the frame 301 of the display 300 so that the sensor 100 is fixedly connected to the display 300.
[0060] Optionally, the fixing surface 52 and the surface of the frame 301 of the display 300 may be fixedly connected by gluing. Figure 3 , Figure 4 , Figure 6 as well as Fig. 9 and Fig.10 As shown in FIG. 5 , the sensor 100 further includes an adhesive layer 4 disposed on the fixing surface 52, and the adhesive layer 4 is used to be bonded to the frame 301. The adhesive layer 4 can specifically be a double-sided adhesive.
[0061] In other embodiments, the fixing surface 52 may be fixedly connected to the frame 301 in other ways.
[0062] Please refer to Figure 2 , Figure 5 and Figure 6 As shown, the angle between the fixing surface 52 and the light receiving surface 71 of the photoelectric converter 7 is α, and α is an obtuse angle. That is to say, the lens 6 and the photoelectric converter 7 are tilted toward the screen 302, and receive light from different positions of the screen 302 in an oblique manner. The light from the area on the screen 302 facing the lens 6 can enter the lens 6, and because the lens 6 and the photoelectric converter 7 are located above the screen 302 and are tilted relative to the screen 302, enough light from the bottom of the sensor 100 needs to enter the lens 6.
[0063] In this embodiment, the lens 6 includes a concave lens portion 66 located at the center, and a convex lens portion 67 located around the concave lens portion 66. Fig.11 shown.
[0064] The lens 6 provided in this embodiment includes a concave lens portion 66 located at the center and a convex lens portion 67 located around the concave lens portion 66. Therefore, light on the screen 302 of the display 300 facing the center of the lens 6, that is, facing the concave lens portion 66, will be scattered after passing through the concave lens portion 66, so that the light is more evenly dispersed on the light receiving surface 71 of the photoelectric conversion element 7. Please refer to Figure 2 , Fig.11 and Fig.12 The convex lens portion 67 around the concave lens portion 66 has a convergence effect on the light, so that the light within a larger range on the screen 302 can be refracted into the lens 6, please refer to Figure 2 , Fig.11 and Fig.12 As shown, the problem of insufficient light energy in some display screens that cannot be detected is avoided.
[0065] See also Fig.11 As shown, the light incident surface 61 of the lens 6 includes a first light incident surface 611 disposed on the concave lens portion 66 , and a second light incident surface 622 disposed on the convex lens portion 67 .
[0066] For the concave lens portion 66, its first light incident surface 611 may be a concave surface, or at least a portion of the light emitting surface 62 of the lens 6 corresponding to the concave lens portion 66 may be a concave surface, or the first light incident surface 611 may be a concave surface and at least a portion of the light emitting surface 62 of the lens 6 corresponding to the concave lens portion 66 may be a concave surface. This can produce a divergent effect on the light refracted from the first light incident surface 611 into the lens 6, thereby dispersing the light onto the photoelectric conversion element 7.
[0067] For the convex lens portion 67 , optionally, the second light incident surface 622 thereof is a convex surface, which enables more light to enter the interior of the lens 6 after being refracted through the second light incident surface 622 , thereby effectively increasing the light energy reaching the photoelectric conversion element 7 .
[0068] It should be noted that the above-mentioned "concave surface" and "convex surface" both refer to the surface of the physical structure, and both "concave" and "convex" are determined based on the physical structure. That is, the surface of the physical structure that convexes outward is a convex surface, and the surface of the physical structure that concave inward is a concave surface. In this embodiment, "concave surface" and "convex surface" both refer to the surface of the lens 6.
[0069] See also Fig.11 , Fig.13 and Fig.14As shown, in one embodiment, a concave portion 60 is provided on the side of the lens 6 facing the inner cavity 50 , and at least part of the inner wall surface of the concave portion 60 serves as the light emitting surface 62 of the lens 6 ; the photoelectric conversion element 7 is at least partly located in the concave portion 60 .
[0070] The purpose of such a setting is to make the photoelectric converter 7 and the light emitting surface 62 as close to the light incident surface 61 as possible, thereby facilitating the light in the lens 6 to remain in a smaller range after being emitted from the light emitting surface 62, thereby ensuring that all the light is incident on the light receiving surface 71 of the photoelectric converter 7 as much as possible, thereby avoiding the problem that the light enters the lens 6 but cannot reach the photoelectric converter 7; in addition, the setting of the recessed portion 60 also makes the sensor 100 more compact and smaller in size as a whole.
[0071] In one embodiment, if Fig.11 and Fig.14 As shown, the light emitting surface 62 is a concave surface, so that the light incident from the convex lens portion 67 is emitted through the light emitting surface 62, and the light incident from the concave lens portion 66 is also emitted through the light emitting surface 62. The purpose of this arrangement is to ensure that the light in the lens 6 can be dispersed as evenly as possible to the light receiving surface 71 after being emitted from the light emitting surface 62, rather than being concentrated in a certain place.
[0072] See also Figure 1 As shown, in the X direction, the sensor 100 can receive light on both sides thereof, therefore, at least one of the light incident surface 61 and the light emitting surface 62 of the lens 6 is symmetrically arranged with respect to the reference surface S, or in other words, the reference surface S is a symmetrical surface of at least one of the light incident surface 61 and the light emitting surface 62, wherein the reference surface S is perpendicular to the fixing surface 52 and the light receiving surface 71 of the photoelectric conversion element 7, please refer to Figure 2 , Figure 7 and Fig.13 In this way, it can be ensured that the amount of light entering the lens 6 from the left and right sides and reaching the photoelectric conversion element 7 is substantially the same.
[0073] The reference plane S is parallel to Figure 2 , Fig.11 and Fig.12 The paper surface is also parallel to Figure 1 The plane defined by the Y and Z axes.
[0074] In an optional embodiment, the light entrance surface 61 and the light exit surface 62 of the lens 6 are symmetrically arranged with respect to the reference plane S. This can further ensure that the amount of light entering the lens 6 from the left and right sides and reaching the photoelectric converter 7 is substantially the same, or even the same.
[0075] Please refer to Figure 7 , Fig.11 , Fig.13 and Fig.14 As shown in FIG. 1 , in one embodiment, the light emitting surface 62 intersects with the reference surface S to define an intersection line T, and the curvature of the intersection line T gradually decreases in the direction close to the fixing surface 52. This is equivalent to, Figure 1 In the figure, the curvature of the intersection line T gradually decreases from bottom to top.
[0076] The consideration for setting the curvature of the intersection line T is that: in the direction from bottom to top, the curvature of the intersection line T is relatively large at the beginning. At this time, for the large-angle light from the bottom of the sensor 100, the refraction effect of the light-emitting surface 62 is more obvious, so it can be ensured that these large-angle light can be emitted and reach the photoelectric converter 7; continue to go up, as the angle of the light entering the lens 6 gradually decreases, the curvature of the intersection line T also gradually decreases, which can ensure that these parts of the light will no longer be greatly refracted and deflected, and will not deviate from the photoelectric converter 7. In this way, large-angle light can enter the lens 6 as much as possible, and the light entering the lens 6 can be emitted as much as possible and reach the photoelectric converter 7.
[0077] See also Fig.11 and Fig.12 As shown, the light receiving surface 71 has a first center point P, the light incident surface 61 has a second center point Q, and the line QP connecting the first center point P and the second center point Q is configured to be inclined close to the fixing surface 52 in the direction from the second center point Q to the first center point P, that is, inclined in the negative direction of the Y direction. This is equivalent to Figure 1 In the figure, the photoelectric converter 7 is arranged higher than the lens 6. The purpose of such arrangement is that the light from the bottom of the sensor 100 is a large-angle light, and after being refracted by the light-entering surface 61 and the light-emitting surface 62, the propagation direction is still relatively inclined upward. Therefore, by arranging the photoelectric converter 7 higher, it can be ensured that all the light reaches the photoelectric converter 7 as much as possible. Conversely, by biasing the photoelectric converter 7 higher, the design of the light-entering surface 61 and the light-emitting surface 62 of the lens 6 can be simplified.
[0078] In one embodiment, the first light incident surface 611 and the second light incident surface 622 are both rotation surfaces, and the first light incident surface 611 and the second light incident surface 622 have a coincident rotation axis K. The rotation axis K is a straight line perpendicular to the light receiving surface 71. The purpose of such a setting is to reduce the design difficulty and processing and manufacturing difficulty of the first light incident surface 611 and the second light incident surface 622.
[0079] Correspondingly, the second center point Q of the aforementioned light incident surface 61 is located on the rotation axis K.
[0080] In other optional embodiments, the rotation axes of the first light incident surface 611 and the second light incident surface 622 may not coincide, but may be parallel and spaced a certain distance apart. The second center point Q may be located on the rotation axis of the first light incident surface 611 .
[0081] In other optional embodiments, only the first light incident surface 611 or the second light incident surface 622 may be a rotation surface. The second center point Q may be located on the rotation axis of the first light incident surface 611 .
[0082] See also Figure 6 , Fig. 9 and Fig.10 As shown, in one embodiment, the housing 5 includes a first cover body 54 and a second cover body 55 connected to each other, an inner cavity 50 is defined between the first cover body 54 and the second cover body 55, and a mounting port 51 is provided on the second cover body 55. The first cover body 54 and the second cover body 55 are detachably connected, such as by screw locking.
[0083] See also Figure 6 , Fig. 9 and Fig.10 As shown, in one embodiment, the sensor 100 further includes a circuit board 8 , which is fixed in the inner cavity 50 , and the photoelectric converter 7 is mounted on a surface of the circuit board 8 facing the lens 6 and is electrically connected to the circuit board 8 .
[0084] After receiving the optical signal, the photoelectric converter 7 converts it into a current signal and transmits it to the circuit board 8. The circuit board 8 controls the light emitting unit 9 to emit light of corresponding color according to the current signal.
[0085] Specific as Fig. 9 As shown in , a limiting protrusion 541 is provided on the inner wall of the first cover body 54, which cooperates with the limiting card slot 80 on the circuit board 8 to realize the positioning and installation of the circuit board 8 on the first cover body 54. In other optional embodiments, the limiting protrusion 541 and the limiting card slot 80 can be exchanged, the limiting card slot 80 can be formed on the inner wall of the first cover body 54, and the limiting protrusion 541 is set on the circuit board 8.
[0086] Please refer to Figure 6 , Figure 7 and Figure 8 As shown, in one embodiment, a positioning protrusion 511 is provided on the peripheral side of the lens 6, and a positioning groove 63 adapted to the positioning protrusion 511 is provided on the inner peripheral wall of the installation opening 51; or, a positioning protrusion 511 is provided on the inner peripheral wall of the installation opening 51, and a positioning groove 63 adapted to the positioning protrusion 511 is provided on the peripheral side of the lens 6. Through the cooperation of the positioning groove 63 and the positioning protrusion 511, the installation and positioning of the lens 6 in the circumferential direction is achieved. The position of the positioning groove 63 in the circumferential direction is not limited, and the position of the positioning protrusion 511 in the circumferential direction is not limited, as long as the two can form a positioning match.
[0087] Please refer to Figure 6 , Fig. 9 and Fig.14As shown, a first convex ring 551 is provided on the second cover 55 at the inner periphery of the mounting opening 51, and the first convex ring 551 is configured to surround the lens 6. A second convex ring 65 is provided on the edge of the convex lens portion 67, and the second convex ring 65 is located on the side of the first convex ring 551 facing the inner cavity 50. The first convex ring 551 restricts the second convex ring 65, so that the lens 6 can be installed between the first cover 54 and the second cover 55, and the lens 6 will not fall out of the mounting opening 51, and the incidence of light on the light incident surface 61 of the lens 6 will not be affected.
[0088] The first convex ring 551 and the second convex ring 65 may be closed-loop convex rings or non-closed-loop convex rings.
[0089] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A sensor (100), characterized in that: The invention comprises a shell (5), a lens (6) and a photoelectric conversion element (7), wherein the photoelectric conversion element (7) is arranged in an inner cavity (50) of the shell (5); the shell (5) is provided with a mounting opening (51) which is in communication with the inner cavity (50), and the lens (6) is fixed in the mounting opening (51); the lens (6) has a light incident surface (61) which faces away from the photoelectric conversion element (7) and a light emitting surface (62) which faces the photoelectric conversion element (7); wherein the lens (6) comprises a concave lens portion (66) located in the center, and a convex lens portion (67) located around the concave lens portion (66).
2. The sensor (100) according to claim 1, characterized in that The light incident surface (61) comprises a first light incident surface (611) arranged on the concave lens portion (66), and a second light incident surface (622) arranged on the convex lens portion (67); The first light incident surface (611) is a concave surface, and / or at least a portion of the light exit surface (62) corresponding to the concave lens portion (66) is a concave surface; The second light incident surface (622) is a convex surface.
3. The sensor (100) according to claim 1, characterized in that A concave portion (60) is provided on one side of the lens (6) facing the inner cavity (50); at least part of the inner wall surface of the concave portion (60) serves as the light emitting surface (62); and the photoelectric conversion element (7) is at least partly located in the concave portion (60).
4. The sensor (100) according to claim 3, characterized in that The surface of the housing (5) comprises a fixing surface (52) located on one side of the lens (6); the angle (α) between the fixing surface (52) and the light receiving surface (71) of the photoelectric conversion element (7) is an obtuse angle; The reference surface (S) is a symmetric surface of at least one of the light incident surface (61) and the light emitting surface (62); Wherein, the reference surface (S) is perpendicular to the fixing surface (52) and the light receiving surface (71) of the photoelectric conversion element (7).
5. The sensor (100) according to claim 4, characterized in that The light emitting surface (62) is a concave surface, and the light emitting surface (62) intersects with the reference surface (S) to define an intersection line (T), and the curvature of the intersection line (T) gradually decreases in a direction approaching the fixing surface (52).
6. The sensor (100) according to claim 4, characterized in that The light receiving surface (71) has a first center point (P), the light incident surface (61) has a second center point (Q), and a line (QP) connecting the first center point (P) and the second center point (Q) is configured to be inclined close to the fixed surface (52) in a direction from the second center point (Q) to the first center point (P).
7. The sensor (100) according to any one of claims 1 to 6, characterized in that The sensor (100) further comprises a circuit board (8), wherein the circuit board (8) is fixedly arranged in the inner cavity (50), and the photoelectric conversion element (7) is mounted on a surface of the circuit board (8) facing the lens (6) and is electrically connected to the circuit board (8).
8. The sensor (100) according to any one of claims 1 to 6, characterized in that A positioning protrusion (511) is provided on the peripheral side surface of the lens (6), and a positioning groove (63) adapted to the positioning protrusion (511) is provided on the inner peripheral wall of the mounting opening (51); or, a positioning protrusion (511) is provided on the inner peripheral wall of the mounting opening (51), and a positioning groove (63) adapted to the positioning protrusion (511) is provided on the peripheral side surface of the lens (6).
9. The sensor (100) according to any one of claims 1 to 6, characterized in that The shell (5) comprises a first cover body (54) and a second cover body (55) which are connected to each other, the inner cavity (50) is defined between the first cover body (54) and the second cover body (55), and the mounting port (51) is arranged on the second cover body (55); the second cover body (55) is provided with a first convex ring (551) surrounding the lens (6), and the edge of the convex lens portion (67) is provided with a second convex ring (65), and the second convex ring (65) is located on the side of the first convex ring (551) facing the inner cavity (50).
10. An ambient light (200), characterized in that: It comprises a sensor (100) as described in any one of claims 1 to 9, and a light-emitting portion (9); the housing (5) is used to be fixed to a frame (301) of a display (300), the lens (6) is used to receive light from a screen (302) of the display (300), and the light-emitting portion (9) is used to be fixed to the back side (304) of the display (300) and emit light according to a control signal of the sensor (100).