Polarizing lens capable of improving utilization rate, polarizing structure and lamp
By providing an additional structure of a reflection unit behind the incident cavity of the polarizing lens, the problem of low backward light efficiency of conventional polarizing lenses is solved, and a higher utilization rate of light energy is achieved.
Patent Information
- Application Number
- CN202420643697.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Conventional polarized lenses are inefficient when processing backward light, resulting in waste of light energy and low light utilization.
An additional structure is provided behind the incident cavity of the polarizing lens, including several reflection units, each reflection unit consisting of at least two intersecting reflection surfaces, and light is reflected by the reflection unit and emits from the second light exit surface.
Through the design of the reflection unit, the backward light is effectively controlled and reflected, the backward light ratio is reduced, and the light utilization rate is improved.
Smart Images
Figure CN222559856U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a polarized lens, in particular to a polarized lens, a polarized structure and a lamp with improved utilization rate. Background Art
[0002] Lighting fixtures used in scenes such as roads and stadiums generally use polarized lenses to control light so that more light can reach the target area. Figure 1-2 As shown, it often includes an incident cavity 1 and a first light emitting surface 2, such as Figure 3 As shown, light enters the lens from the incident cavity 1 and exits the lens from the first light exit surface 2 to achieve light control. However, conventional polarized lenses cannot handle backward light well (generally, the proportion of backward light accounts for more than 20%). Conventional polarized lenses still have a lot of backward light outside the target area ( Figure 3 Middle red circle, Figure 4 The arrow in the middle indicates the backward light), which causes the waste of light energy and low light utilization rate. Figure 4 shown. Utility Model Content
[0003] The purpose of the invention of the utility model is to provide a polarized lens, a polarized structure and a lamp with improved utilization rate in view of the problems existing in the prior art.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A polarized lens with improved utilization rate comprises an incident cavity and a first light-emitting surface, and also comprises an additional structure located at the rear of the incident cavity, wherein the additional structure comprises a second light-emitting surface and a plurality of reflection units, each of the reflection units comprises at least two reflection surfaces arranged to intersect, and after light enters the incident cavity, it is reflected by the reflection unit and then emitted from the second light-emitting surface.
[0006] As a preferred solution of the utility model, each of the reflection units includes two intersecting reflection surfaces, and after the light enters the incident cavity, it is totally reflected twice by the reflection unit and then emitted from the second light emitting surface.
[0007] As a preferred solution of the present utility model, the reflection unit is a triangular prism structure, and the height direction of the triangular prism structure is consistent with the convex direction of the first light emitting surface on the substrate.
[0008] As a preferred solution of the present utility model, a plurality of the reflection units are arranged along a trajectory line, and the trajectory line surrounds the rear part of the first light emitting surface.
[0009] As a preferred solution of the present utility model, the trajectory line is a free curve.
[0010] As a preferred solution of the utility model, several of the reflection units are arranged on the side of the additional structure away from the first light emitting surface, and the second light emitting surface is arranged on the side of the additional structure close to the first light emitting surface, and the second light emitting surface occupies the first light emitting surface.
[0011] As a preferred solution of the present utility model, the incident cavity, the first light emitting surface, the substrate, and the additional structure are integrally injection-molded structural parts.
[0012] As a preferred solution of the present utility model, the first light emitting surface and the additional structure are located on the same side of the substrate.
[0013] The utility model also discloses a polarization structure with improved utilization rate, comprising one or several polarization lenses with improved utilization rate.
[0014] The utility model also discloses a lamp, comprising the polarization structure for improving utilization rate.
[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0016] The utility model arranges an additional structure including a plurality of reflection units at the rear of the incident cavity of the polarized lens, and a part of the backward light can be irradiated to the target area after being reflected by the reflection unit, thereby achieving the purpose of improving the utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a conventional polarizing lens.
[0018] Figure 2 It is a cross-sectional view of a conventional polarized lens.
[0019] Figure 3 This is the optical path diagram of a conventional polarizing lens.
[0020] Figure 4 This is the light distribution curve of a conventional polarized lens.
[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of a polarized lens for improving utilization described in Example 1.
[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of a polarized lens for improving utilization described in Example 1 after half of the structure is hidden.
[0023] Figure 7 It is a cross-sectional view of a polarized lens for improving utilization described in Example 1.
[0024] Figure 8This is a top view of a polarized lens for improving utilization described in Example 1.
[0025] Fig. 9 This is a front view of a polarized lens for improving utilization described in Example 1.
[0026] Fig.10 This is a bottom view of a polarized lens for improving utilization described in Example 1.
[0027] Fig.11 It is a side view of a polarized lens for improving utilization described in Example 1.
[0028] Fig.12 The three-dimensional structure of the polarized lens for improving utilization described in Example 2 is shown in FIG. Figure 1 .
[0029] Fig.13 The three-dimensional structure of the polarized lens for improving utilization described in Example 2 is shown in FIG. Figure 2 .
[0030] Fig.14 The three-dimensional structure of a polarized lens for improving utilization described in Example 3 is shown in FIG. Figure 1 .
[0031] Fig.15 The three-dimensional structure of a polarized lens for improving utilization described in Example 3 is shown in FIG. Figure 2 .
[0032] Fig.16 The three-dimensional structure of a polarized lens for improving utilization described in Example 4 is shown in FIG. Figure 1 .
[0033] Fig.17 The three-dimensional structure of a polarized lens for improving utilization described in Example 4 is shown in FIG. Figure 2 .
[0034] Fig.18 The utility model discloses a partial optical path diagram of a polarized lens for improving utilization rate.
[0035] Fig.19 The utility model discloses a light path diagram of a polarized lens for improving utilization rate.
[0036] Fig. 20 The utility model discloses a light distribution curve diagram of a polarized lens for improving utilization rate.
[0037] Markings in the figure: 1-incident cavity, 2-first light output surface, 3-reflection unit, 31-reflection surface, 4-substrate, 5-track line, 6-additional structure, 61-first side surface, 62-second side surface, 7-second light output surface. DETAILED DESCRIPTION
[0038] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0039] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the product / equipment / device of the utility model when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.
[0040] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.
[0041] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.
[0042] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.
[0043] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.
[0044] Example 1
[0045] like Figure 5-11 As shown, a polarized lens with improved utilization rate includes an incident cavity 1 and a first light-emitting surface 2, and also includes an additional structure 6 located at the rear of the incident cavity 1, the additional structure includes a plurality of reflection units 3 and at least one second light-emitting surface 7, each of the reflection units 3 includes at least two intersecting reflection surfaces 31, and after the light enters the incident cavity 1, it is reflected by the reflection unit 3 and then emitted from the second light-emitting surface 7.
[0046] The incident cavity 1 is usually an irregular curved cavity structure, but it may be a regular cavity structure.
[0047] The first light emitting surface 2 is usually an irregular free-form surface, but it may also be a regular curved surface structure.
[0048] The additional structure 6 is arranged at the rear of the incident cavity 1, where the rear refers to the direction opposite to the polarization direction of the lens, that is, the position where the rearward light of a conventional polarizing lens is directly emitted.
[0049] Each of the reflection units 3 includes at least two intersecting reflection surfaces 31, that is, each of the reflection units 3 may include 2, 3, 4 ... reflection surfaces, but at least two reflection surfaces 31 should be intersecting, that is, at least two reflection surfaces 31 are arranged at a certain angle. The shape of the reflection surface 31 is usually a plane, but it is not excluded that it is a curved surface.
[0050] For conventional polarized lenses, after light enters the incident cavity 1, most of the light is directly emitted from the first light emitting surface 2. Thus, there is up to 20% or more of backward light, which causes a waste of light energy and reduces the utilization rate.
[0051] In the polarized lens with improved utilization rate described in the present invention, light enters from the incident cavity 1, and most of it is directly emitted from the first light-emitting surface 2 of the polarized lens to the target area, while a part of the backward light is reflected by the reflection surface 31 and then emitted to the target area through the second light-emitting surface 7. In this way, the reflection surface 31 provided in the present invention can effectively control a part of the backward light, thereby changing the emission direction of a part of the backward light, and can reduce the proportion of the backward light to less than 10%, thereby improving the utilization rate. Figure 18-20 shown.
[0052] The shapes and structures of the several reflection units 3 of the present invention may be completely the same or different, and they can mainly reflect the light through the reflection surface 31 and emit it through the second light emitting surface 7 .
[0053] In one or more embodiments, each of the reflection units 3 includes two intersecting reflection surfaces 31, and after the light enters the incident cavity 1, it is totally reflected twice by the reflection unit 3 and then emitted from the second light emitting surface 7. In this way, by setting two reflection surfaces 31 set at a certain angle (usually an acute angle), a part of the backward light can be totally reflected twice by the two reflection surfaces 31 in the reflection unit 3 and then emitted to the target area. In this setting form, the structure of the reflection unit 3 is relatively simple, which is convenient for controlling the processing accuracy, and at the same time, it is better to change the emission direction of a part of the backward light, which is conducive to improving the utilization rate.
[0054] In one or more embodiments, the reflective unit 3 is a triangular prism structure, and the height direction (i.e., the extension direction) of the triangular prism structure is consistent with the convex direction of the first light-emitting surface 2 on the substrate 4. The triangular prism structure is simple and easy to process, and at the same time, it is better to change the emission direction of a part of the backward light, which is conducive to improving the utilization rate. At the same time, the height direction of the triangular prism structure is set to be consistent with the convex direction of the first light-emitting surface 2 on the substrate 4, so that most of the backward light can be controlled, and the emission direction of most of the backward light can be changed, which further improves the utilization rate.
[0055] In one or several embodiments, several of the reflection units 3 are arranged along a trajectory 5, and the trajectory 5 surrounds the rear of the first light emitting surface 2. The trajectory 5 of several of the reflection units 3 refers to a trajectory formed by the center points or edge points of several of the reflection units 3. The trajectory 5 is arranged around the rear of the first light emitting surface 2, and it is not required that the trajectory 5 can completely surround the rear of the first light emitting surface 2, as long as it can roughly form a similar enclosure effect to the rear of the first light emitting surface 2. By arranging several of the reflection units 3 along the rear of the first light emitting surface 2, most of the backward light can be enclosed, most of the backward light can be further controlled, and the emission direction of most of the backward light can be changed, further improving the utilization rate.
[0056] In one or more embodiments, the trajectory line 5 is a free curve, including but not limited to a circular arc, an elliptical arc, a parabola, etc. The circular arc shape has a simple structure and is easy to process.
[0057] In one or several embodiments, several of the reflection units 3 are arranged on the side of the additional structure 6 away from the first light emitting surface 2, that is, the side of the additional structure 6 away from the first light emitting surface 2 can be directly composed of several of the reflection units 3, and at least one second light emitting surface 7 can be arranged on the side of the additional structure 6 close to the first light emitting surface 2, and the side occupies the first light emitting surface 2. The side of the additional structure 6 close to the first light emitting surface 2 can be a plane or a curved surface, which is not limited here. The side of the additional structure 6 away from the first light emitting surface 2 and the side of the additional structure 6 close to the first light emitting surface 2 are arranged opposite to each other. Of course, since the contour of the side of the additional structure 6 away from the first light emitting surface 2 is a free curve, the two side surfaces of the additional structure 6 can also directly intersect. Figure 5 As shown, the side surface of the additional structure 6 away from the first light emitting surface 2 may be a first side surface 61 , and the side surface of the additional structure 6 close to the first light emitting surface 2 may be a second side surface 62 .
[0058] The additional structure 6 is arranged to occupy the first light-emitting surface 2, which means that the rear part of the first light-emitting surface 2 of the polarized lens of the utility model is not completely arranged, but is missing a piece, and the missing part is occupied by the additional structure 6. By arranging the additional structure 6 to occupy the first light-emitting surface 2, on the one hand, the size of the rear part of the first light-emitting surface is reduced, that is, the possibility of direct emission of backward light is reduced, and on the other hand, it is also convenient for light to enter the additional structure 6 from the incident cavity 1, so as to reflect the backward light through the reflection unit 3, thus further improving the utilization rate.
[0059] In one or more embodiments, the additional structure 6 includes two second light emitting surfaces 7, such as Figure 5-6 As shown, the additional structure 6 is a columnar structure, and the top surface of the additional structure 6 and the side surface close to the first light emitting surface 2 can both be used as light emitting surfaces.
[0060] In one or several embodiments, the incident cavity 1, the first light emitting surface 2, the substrate 4, and the additional structure 6 are an integral injection-molded structural component, the incident cavity 1 is sunken in the substrate 4, and the first light emitting surface 2 is protruding out of the substrate 4, so as to facilitate processing.
[0061] In one or more embodiments, the first light emitting surface 2 and the additional structure 6 are located on the same side of the substrate 4. In this way, most of the backward light can be further controlled, and the emission direction of most of the backward light can be changed, further improving the utilization rate.
[0062] A polarizing structure for improving utilization rate comprises a polarizing lens for improving utilization rate.
[0063] A lamp comprises the polarizing structure for improving utilization rate.
[0064] Example 2
[0065] like Figure 12-13 As shown, a polarization structure for improving utilization rate includes four polarization lenses for improving utilization rate as described in Example 1, and all polarization lenses are arranged on the same substrate 4.
[0066] A lamp comprises the polarizing structure for improving utilization rate.
[0067] Example 3
[0068] like Figure 14-15 As shown, a polarization structure for improving utilization rate includes 6 polarization lenses for improving utilization rate as described in Example 1, and all polarization lenses are arranged on the same substrate 4.
[0069] A lamp comprises the polarizing structure for improving utilization rate.
[0070] Example 4
[0071] like Figure 16-17 As shown, a polarization structure for improving utilization rate includes 12 polarization lenses for improving utilization rate as described in Example 1, and all polarization lenses are arranged on the same substrate 4.
[0072] A lamp comprises the polarizing structure for improving utilization rate.
[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A polarized lens with improved utilization, comprising an incident cavity (1) and a first light emitting surface (2), characterized in that: The invention also comprises an additional structure (6) located at the rear of the incident cavity (1), wherein the additional structure (6) comprises a second light emitting surface (7) and a plurality of reflection units (3), wherein each of the reflection units (3) comprises at least two reflection surfaces (31) arranged to intersect with each other, and after light enters the incident cavity (1), it is reflected by the reflection unit (3) and then emitted from the second light emitting surface (7).
2. A polarized lens with improved utilization rate according to claim 1, characterized in that: Each of the reflection units (3) comprises two reflection surfaces (31) arranged to intersect each other, and after light enters the incident cavity (1), it is totally reflected twice by the reflection unit (3) and then emitted from the second light emitting surface (7).
3. The polarized lens with improved utilization rate according to claim 2, characterized in that: The reflection unit (3) is a triangular prism structure, and the height direction of the triangular prism structure is consistent with the convex direction of the first light emitting surface (2) on the substrate (4).
4. The polarized lens with improved utilization rate according to claim 1, characterized in that: A plurality of the reflection units (3) are arranged along a track line (5), and the track line (5) surrounds the rear portion of the first light emitting surface (2).
5. The polarized lens with improved utilization rate according to claim 4, characterized in that: The trajectory line (5) is a free curve.
6. A polarized lens with improved utilization rate according to any one of claims 1 to 5, characterized in that: A plurality of the reflection units (3) are arranged on a side of the additional structure (6) away from the first light emitting surface (2), and the second light emitting surface (7) is arranged on a side of the additional structure (6) close to the first light emitting surface (2), and the second light emitting surface (7) occupies the first light emitting surface (2).
7. The polarized lens with improved utilization rate according to claim 6, characterized in that: The incident cavity (1), the first light emitting surface (2), the substrate (4), and the additional structure (6) are integrally formed injection-molded structural parts.
8. The polarized lens with improved utilization rate according to claim 6, characterized in that: The first light emitting surface (2) and the additional structure (6) are located on the same side of the substrate (4).
9. A polarization structure for improving utilization, characterized in that: The invention comprises one or more polarized lenses for improving utilization as described in any one of claims 1 to 8.
10. A lamp, characterized in that: It includes a polarizing structure for improving utilization as described in claim 9.