CN113419299A - Optical lens, optical lens group and projection optical system - Google Patents
Optical lens, optical lens group and projection optical system Download PDFInfo
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- CN113419299A CN113419299A CN202110606628.6A CN202110606628A CN113419299A CN 113419299 A CN113419299 A CN 113419299A CN 202110606628 A CN202110606628 A CN 202110606628A CN 113419299 A CN113419299 A CN 113419299A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B2003/0093—Simple or compound lenses characterised by the shape
Abstract
The invention discloses an optical lens, an optical lens group and a projection optical system. The optical lens includes: a light incident surface and a light emitting surface; the light incident surface and the light emergent surface are respectively arranged at two opposite sides of the optical lens, a concave groove is arranged in the middle of the light incident surface, and light rays are emitted into the optical lens through the concave groove; the light emitting surface comprises a first cambered surface, the first cambered surface is located in the middle of the optical lens, and the first cambered surface is a concave surface. According to the technical scheme, the projection equipment can form an effective optical touch area in a short distance, and the use requirements of users are met.
Description
Technical Field
The invention relates to the technical field of optics, in particular to an optical lens, an optical lens group and a projection optical system.
Background
Along with the rapid development of intelligent interaction products, the lower projection equipment can be installed by the light touch technology in less space, and the placement position is more flexible. Therefore, the optical touch technology is receiving more attention as an important input technology. However, the existing projection device is difficult to form an effective optical touch area in a short distance, and cannot meet the use requirements of users.
Disclosure of Invention
Therefore, in order to solve the problem that the existing projection equipment is difficult to form an effective optical touch area in a short distance and cannot meet the use requirements of users, an optical lens group and a projection optical system are needed to be provided, and the purpose that the projection equipment forms an effective optical touch area in a short distance is achieved, and the use requirements of users are met.
To achieve the above object, the present invention provides an optical lens, comprising: a light incident surface and a light emitting surface;
the light incident surface and the light emergent surface are respectively arranged at two opposite sides of the optical lens, a concave groove is arranged in the middle of the light incident surface, and light rays are emitted into the optical lens through the concave groove;
the light emitting surface comprises a first cambered surface, the first cambered surface is located in the middle of the optical lens, and the first cambered surface is a concave surface.
Optionally, the light emitting surface further includes a second arc surface and a third arc surface, the second arc surface and the third arc surface are respectively located on two sides of the first arc surface and connected to the first arc surface, and the second arc surface and the third arc surface are convex surfaces.
Optionally, the second arc surface and the third arc surface are symmetrically arranged on the optical axis of the optical lens.
Optionally, the slope of the first arc surface gradually decreases from the optical axis position to the edge position, and the slopes of the second arc surface and the third arc surface gradually increase from the optical axis position to the edge position.
Optionally, the concave groove includes a first wall surface and a second wall surface, the first wall surface is disposed near the second arc surface, and the second wall surface is disposed near the third arc surface.
Alternatively, the first wall surface and the second wall surface gradually extend toward the optical axis of the optical lens in the propagation direction of the light.
In addition, in order to achieve the above object, the present invention further provides an optical lens group, which includes a diffusion lens and the optical lens as described above, wherein the light emitting surface of the diffusion lens is an arc surface, the concave groove of the optical lens faces the diffusion lens, light rays passing through the arc surface of the diffusion lens converge, and the converging focus is located between the diffusion lens and the optical lens.
Optionally, the diffusion lens and the optical lens are cylinder structures, and an optical axis of the diffusion lens coincides with an optical axis of the optical lens.
Optionally, the diffusion lens is of a cylindrical structure, a side surface of the diffusion lens of the cylindrical structure faces the diffusion lens, and an optical axis of the diffusion lens is orthogonal to an axis of the diffusion lens.
Optionally, the diffusion lens is integrally formed with the optical lens.
Optionally, the optical lens group includes a first collimating lens and a second collimating lens, the first collimating lens and the second collimating lens are disposed on one side of the light incident direction of the diffusion lens, and the light emergent surface of the first collimating lens and the light emergent surface of the second collimating lens are convex toward the propagation direction of the light.
In addition, in order to achieve the above object, the present invention further provides a projection optical system, which includes an infrared laser source and the optical lens as described above, wherein the infrared laser source is disposed on one side of the light incident surface of the collimating lens group.
In the technical scheme provided by the invention, the optical lens is used for enlarging the emergent angle of the emergent ray. After the light rays pass through the concave groove of the light incident surface of the optical lens, the light rays are diffused for the first time. When the light passes through the light emergent surface of the optical lens, the light is subjected to second diffusion. Because the light quantity of optical axis position is more, further diffusion light, first cambered surface sets up to the depressed surface. When the light passes through the first arc surface, the light deflects to two sides. Therefore, the light rays are diffused twice after passing through the optical lens, and the touch control light curtain with a large range is quickly formed. An effective optical touch area can be formed at a position close to the optical lens, and the use requirements of users are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an optical lens according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the optical lens of FIG. 1;
FIG. 3 is a schematic top view of the optical lens assembly of the present invention;
FIG. 4 is a schematic perspective view of the optical lens assembly shown in FIG. 3;
FIG. 5 is a schematic side view of the optical lens assembly of FIG. 3;
FIG. 6 is a schematic view of an integrated optical lens assembly of the present invention;
fig. 7 is a schematic perspective view of the optical lens assembly shown in fig. 6.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 110 | First |
221b | |
| 120 | Second |
222 | |
| 210 | |
222a | |
| 201 | Axis of the |
222b | |
| 211 | Arc- |
222c | Third cambered |
| 220 | |
30 | |
| 202 | Axis of |
310 | |
| 221 | |
40 | |
| 221a | The first wall surface |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In the related art, a light curtain is projected on a certain plane area by a projection apparatus, and a camera is disposed above the light curtain. When the staff clicks on the light curtain, the light at the corresponding position is shielded, and the position where the light is shielded is shot by the camera to judge the touch position of the staff, so that the corresponding information instruction is determined. However, the existing projection device is difficult to form an effective optical touch area in a short distance, and cannot meet the use requirements of users.
In order to solve the above problem, referring to fig. 1 and 2, the present invention provides an optical lens 220, where the optical lens 220 includes: a light incident surface and a light emitting surface. The light incident surface refers to the light incident surface of the optical lens 220, and the light emitting surface refers to the light emitting surface of the optical lens 220. The light rays are incident through the light incident surface and are emitted through the light emitting surface.
The light incident surface of the optical lens 220 and the light emitting surface of the optical lens 220 are respectively disposed at two opposite sides of the optical lens, a concave groove 221 is disposed in the middle of the light incident surface, and light rays are incident into the optical lens 220 through the concave groove 221; the concave groove 221 forms a space in which light spreads. The light is incident into the optical lens 220 through the concave groove 221. The light is diffused for the first time while passing through the concave groove 221.
The light emitting surface 222 of the optical lens 220 includes a first arc surface 222a, the first arc surface 222a is located in the middle of the optical lens 220, and the first arc surface 222a is a concave surface. The concave groove 221 and the first arc surface 222a are both concave, and when light passes through the surface of the concave groove 221 and the first arc surface 222a, the light is deflected to two sides. The emergent angle of the light is enlarged by the deflection of the light at the two sides.
In the solution proposed in this embodiment, the optical lens 220 is used to enlarge the exit angle of the exiting light. After the light passes through the concave groove 221 of the light incident surface of the optical lens 220, the light 310 is diffused for the first time. When the light 310 passes through the light emitting surface 222 of the optical lens 220, the light 310 is diffused for the second time. Since the number of light rays at the position of the optical axis 40 is large, the first arc surface 222a is provided as a concave surface in order to further diffuse the light rays. When the light passes through the first arc surface 222a, the light is deflected to both sides. Thus, the light 310 is diffused twice after passing through the optical lens 220, so that a touch control light curtain with a large range is formed quickly. An effective optical touch area can be formed at a position close to the optical lens 220, so that the use requirement of a user is met.
In one embodiment, the light curtain can be projected in a designated area to ensure that the light 310 is effective. The light emitting surface 222 of the optical lens 220 further includes a second arc surface 222b and a third arc surface 222c, the second arc surface 222b and the third arc surface 222c are respectively located at two sides of the first arc surface 222a and connected to the first arc surface 222a, and the second arc surface 222b and the third arc surface 222c are convex surfaces. Specifically, the second arc surface 222b and the third arc surface 222c are respectively located on two sides of the first arc surface 222a, one end of the first arc surface 222a is connected to the second arc surface 222b, the other end of the first arc surface 222a is connected to the third arc surface 222c, the first arc surface 222a is concave, and the second arc surface 222b and the third arc surface 222c are convex. The second arc surface 222b and the third arc surface 222c smoothly extend from the first arc surface 222 a. In the middle of the light 310, the light 310 is relatively concentrated, and the light 310 in the middle can be dispersed by the concave design of the first arc surface 222 a. By the convex design of the second arc surface 222b and the third arc surface 222c, the light rays 310 at both ends of the optical lens 220 are dispersed. In order to further increase the diffusion area, the area of the light emitting surface 222 of the optical lens 220 is larger than the area of the light incident surface of the optical lens 220.
In the above embodiment, in order to ensure that the coverage of the light ray 310 in the horizontal direction is equal at both ends of the optical lens 220, the second arc surface and the third arc surface are symmetrically disposed on the optical axis of the optical lens. Thus, the light 310 has the same exit angle in the two opposite exit directions of the optical lens 220, so that the light 310 has the same coverage area at the two ends of the optical lens 220. Meanwhile, the symmetrical arrangement is convenient for processing the second lens.
In one embodiment, the slope of the first arc-shaped surface 222a gradually decreases from the optical axis position to the edge position, and the slopes of the second arc-shaped surface 222b and the third arc-shaped surface 222c gradually increase from the optical axis position to the edge position. It can be understood that the light emitting surface 222 of the optical lens 220 is a free-form surface. On the basis of the concave surface of the first arc surface 222a, the slope of the first arc surface 222a gradually decreases from the position of the optical axis 40 to the edge position, and the emergent angle of the light ray 310 is dispersed. The second arc surface 222b and the third arc surface 222c have a slope gradually increasing on the basis of the convex surface to disperse the exit angle of the light ray 310. In addition, the gradual change of the slope ensures the smooth transition extension of the light emitting surface 222.
In one embodiment, the recess 221 includes a first wall 221a and a second wall 221b, the first wall 221a is disposed adjacent to the second arc 222b, and the second wall 221b is disposed adjacent to the third arc 222 c. The concave groove 221 formed by the extension of the first wall surface 221a and the second wall surface 221b has a tapered cross section. When the light ray 310 enters the optical lens 220, the light ray 310 is deflected on the surfaces of the first wall surface 221a and the second wall surface 221 b. The light ray 310 is expanded in the horizontal direction by the design of the tapered sectional concave groove 221. It can also be understood that the light incident surface of the optical lens 220 forms a negative lens effect by the design of the concave groove 221, thereby completing the diffusion of the light ray 310.
Further, the first wall surface 221a and the second wall surface 221b gradually extend toward the optical axis of the optical lens in the propagation direction of the light. The first wall surface 221a and the second wall surface 221b are disposed symmetrically to the optical axis. Further ensure the light to form a touch control light curtain in the touch control area uniformly.
Referring to fig. 3-5, the present invention further provides an optical lens assembly, which includes a diffusion lens 210 and an optical lens 220 as described above, wherein the light emitting surface of the diffusion lens 210 is an arc surface 211, the concave groove 221 of the optical lens 220 faces the diffusion lens 210, the light rays passing through the arc surface 211 converge, and the converging focus is located between the diffusion lens 210 and the optical lens 220. The diffusion lens 210 and the optical lens 220 are sequentially disposed along the traveling direction of the light 310. The concave groove 221 functions to diffuse the light 310 converged by the diffusion lens 210. The light 310 is focused in a small range by the convergence of the diffusion lens 210, and the divergence angle of the light 310 is increased after the light 310 is emitted to the concave groove 221 of the diffusion lens 210. In addition, the light 310 is gathered in a small range, so that the light intensity of the light 310 is higher in the small range, and the concave groove 221 can also disperse the light intensity of the light 310, so that the light is diffused to a large-angle area in an area with dense energy distribution, and the light is uniformized. The focal point through convergence is located between the diffusion lens 210 and the optical lens 220. The curved surface 211 acts to converge the light 310. The light 310 is diffused again after passing through the focal point, and the converging focal point is located between the diffusion lens 210 and the optical lens 220. It will be appreciated that the focal point of convergence is closer to the diffuser lens 210, so that after short focusing action of the light rays 310 through the diffuser lens 210, angular diffusion occurs very quickly to achieve a larger exit angle.
After passing through the diffusion lens 210, the emergent angle of the light 310 is diffused, and the light is projected to form a touch control light curtain for touch control. For example, the effective touch area is an area with a length of 500mm and a width of 296mm, the closest position of the effective touch area to the light exit surface of the optical lens 220 is 20mm, and the farthest position is 316 mm. As can be seen, the effective area is closer to the optical lens 220. In order to ensure that the touch light curtain can effectively cover the effective area, the exit angle of the light 310 can be enlarged by the diffusion lens 210. The exit angle of the light 310 can be made close to 180 degrees by the diffusion lens 210 and the optical lens 220. For example, the exit angle is 160 degrees, and under the condition of 160 degrees, the light 310 can effectively cover the touch-control effective area.
Further, the light rays 310 passing through the arc-shaped surface 211 converge, and the converging focal point is located between the diffusion lens 210 and the optical lens 220. The curved surface 211 acts to converge the light 310. The light 310 is diffused again after passing through the focal point, and the converging focal point is located between the diffusion lens 210 and the optical lens 220. It can be seen that the focal point of convergence is closer to the diffuser lens 210, so that after the short-range focusing action of the light rays 310 passing through the diffuser lens 210, the angular diffusion is performed, and a larger exit angle is obtained.
Referring to fig. 3 and 4, the diffusion lens 210 and the optical lens 220 are cylindrical structures, and the axis 201 of the diffusion lens 210 is parallel to the axis 202 of the optical lens 220. The axis 201 of the diffuser lens 210 is parallel to the axis 202 of the optical lens 220, so that the diffuser lens 210 and the optical lens 220 can ensure the same diffusion direction of the light 310, and the emergent angle of the light 310 can be further enlarged through twice diffusion. The diffusion lens and the optical lens are of cylindrical structures, and the optical axis of the diffusion lens is superposed with the optical axis of the optical lens.
Further, to avoid thickening the thickness of the light sheet, it is desirable to avoid causing the light 310 to diverge through the thickness of the light sheet. Therefore, the diffusion lens 210 has a cylindrical structure, the side surface of the diffusion lens 210 of the cylindrical structure faces the optical lens 220, and the optical axis 40 of the optical lens 220 is perpendicular to the axis 201 of the diffusion lens. Thus, the emergent angle of the light ray 310 is changed in the vertical direction, and the light curtain keeps a certain thickness to be transmitted. The diffuser lens 210 changes the exit angle of the light 310 in the horizontal direction. Referring to fig. 6 and 7, the diffusing lens 210 and the optical lens 220 are integrally formed for easy assembly of the optical lens assembly. For example, the diffusing lens 210 and the optical lens 220 are made of optical plastic, and the diffusing lens group 20 is obtained by a single injection molding process by means of thermoplastic molding. Therefore, when the optical lens group is assembled, the assembly can be completed only by positioning and mounting once. For example, the material of the diffusion lens 210 and the optical lens 220 is Polycarbonate (PC), although the material of the diffusion lens 210 and the optical lens 220 is not limited thereto.
In the above embodiment, the optical lens assembly includes the first collimating lens 110 and the second collimating lens 120, the first collimating lens 110 and the second collimating lens 120 are disposed on one side of the light incident direction of the diffusing lens 210, the light emitting surface of the first collimating lens 110 and the light emitting surface of the second collimating lens 120 are protruded, and the protruding direction faces the propagation direction of the light 310. The first collimating lens 110 and the second collimating lens 120 can also be made of optical plastic by thermoplastic processing. In addition, in order to ensure the collimation effect, the light emitting surface of the first collimating lens 110 and the light incident surface of the first collimating lens 110 are spherical surfaces, wherein the light incident surface of the first collimating lens 110 is convex toward the propagation direction of the light ray 310, that is, the light incident surface of the first collimating lens 110 is a concave surface. Similarly, the light-emitting surface of the second collimating lens 120 and the light-entering surface of the second collimating lens 120 are also spherical surfaces, and the light-entering surface of the second collimating lens 120 is convex toward the propagation direction of the light ray 310, that is, the light-entering surface of the second collimating lens 120 is a concave surface. For example, the material of the first collimating lens 110 and the second collimating lens 120 is H-F1, although the material of the first collimating lens 110 and the second collimating lens 120 is not limited thereto. It should be noted that the light source emitting light 310 is typically a point source. In order to smoothly realize touch control on the touch control light curtain, the light curtain needs a certain thickness, and the point light source is difficult to form the light curtain with a certain thickness. For this reason, through the arrangement of the first collimating lens 110 and the second collimating lens 120, when the light 310 passes through the first collimating lens 110 and the second collimating lens 120, the propagation direction of the light 310 is changed, the light 310 is parallel to each other, and a light curtain with parallel upper and lower surfaces is formed, and the distance between the upper and lower surfaces is the thickness of the light curtain. In addition, when the diffusion lens and the optical lens are of a cylinder structure, the thickness of the touch light curtain is smaller than or equal to the height of the cylinder structure.
The invention also provides a projection optical system, which comprises an infrared laser source 30 and an optical lens group, wherein the infrared laser source emits infrared laser, and the infrared laser irradiates the optical lens group. The infrared light emitted by the infrared laser source 30 covers the effective touch area, and the pattern is arranged in the effective touch area, so that the infrared light is invisible to naked eyes, and the light 310 is prevented from influencing the display effect of the pattern. In addition, the projection optical system may further include an infrared camera to determine the position where the light 310 is blocked by shooting, and determine the position where the finger clicks.
The detailed embodiments of the projection optical system of the present invention refer to the embodiments of the optical lens assembly, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. An optical lens, comprising: a light incident surface and a light emitting surface;
the light incident surface and the light emergent surface are respectively arranged at two opposite sides of the optical lens, a concave groove is arranged in the middle of the light incident surface, and light rays are emitted into the optical lens through the concave groove;
the light emitting surface comprises a first cambered surface, the first cambered surface is located in the middle of the optical lens, and the first cambered surface is a concave surface.
2. The optical lens of claim 1, wherein the light emitting surface further comprises a second arc surface and a third arc surface, the second arc surface and the third arc surface are respectively located at two sides of the first arc surface and connected to the first arc surface, and the second arc surface and the third arc surface are convex surfaces.
3. The optical lens of claim 1, wherein the second curved surface and the third curved surface are symmetrically disposed about an optical axis of the optical lens.
4. The optical lens of claim 1 wherein the slope of the first curved surface gradually decreases from the optical axis position to the edge position, and the slopes of the second curved surface and the third curved surface gradually increase from the optical axis position to the edge position.
5. The optical lens of any of claims 1 to 4, wherein the recessed groove comprises a first wall disposed proximate to the second curved surface and a second wall disposed proximate to the third curved surface.
6. The optical lens of claim 5 wherein the first wall and the second wall extend gradually toward an optical axis of the optical lens in a direction of propagation of light.
7. An optical lens assembly, further comprising a diffuser lens and the optical lens of any one of claims 1 to 6, wherein the light emitting surface of the diffuser lens is an arc surface, the concave groove of the optical lens faces the diffuser lens, the light passing through the arc surface of the diffuser lens is converged, and the converged focal point is located between the diffuser lens and the optical lens.
8. The optical lens assembly of claim 7 wherein said diffusing lens and said optical lens are cylindrical structures, and wherein an optical axis of said diffusing lens coincides with an optical axis of said optical lens.
9. The optical lens assembly of claim 8 wherein the diffusing lens is cylindrical in structure with the side of the diffusing lens facing the diffusing lens, and the optical axis of the diffusing lens is orthogonal to the axis of the diffusing lens.
10. An optical lens assembly as claimed in any one of claims 7 to 9, wherein said diffusing lens is integrally formed with said optical lens.
11. The optical lens assembly as claimed in claim 10, wherein the optical lens assembly includes a first collimating lens and a second collimating lens, the first collimating lens and the second collimating lens are disposed on one side of the light incident direction of the diffusing lens, and a light emitting surface of the first collimating lens and a light emitting surface of the second collimating lens are protruded toward the light propagation direction.
12. Projection optical system, characterized in that it comprises an infrared laser source emitting infrared laser light directed towards an optical mirror group according to any one of claims 7 to 11 and an optical mirror group according to any one of claims 7 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110606628.6A CN113419299B (en) | 2021-05-31 | 2021-05-31 | Optical lens, optical lens group and projection optical system |
| PCT/CN2021/133835 WO2022252520A1 (en) | 2021-05-31 | 2021-11-29 | Optical lens, optical lens group and projection optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110606628.6A CN113419299B (en) | 2021-05-31 | 2021-05-31 | Optical lens, optical lens group and projection optical system |
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| Publication Number | Publication Date |
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| CN113419299A true CN113419299A (en) | 2021-09-21 |
| CN113419299B CN113419299B (en) | 2023-09-22 |
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| CN202110606628.6A Active CN113419299B (en) | 2021-05-31 | 2021-05-31 | Optical lens, optical lens group and projection optical system |
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| WO (1) | WO2022252520A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252520A1 (en) * | 2021-05-31 | 2022-12-08 | 歌尔光学科技有限公司 | Optical lens, optical lens group and projection optical system |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639196A (en) * | 2009-08-24 | 2010-02-03 | 深圳市九拓光电有限公司 | Light-emitting diode lens and lighting device |
| JP2010177028A (en) * | 2009-01-29 | 2010-08-12 | Panasonic Electric Works Co Ltd | Optical lens, and road luminaire |
| CN102705777A (en) * | 2012-06-29 | 2012-10-03 | 冠捷显示科技（厦门）有限公司 | Secondary lens with bottom of curved surface structure |
| CN103062705A (en) * | 2012-12-19 | 2013-04-24 | 冠捷显示科技（厦门）有限公司 | Large-angle diffusing optical lens |
| JP2014038778A (en) * | 2012-08-17 | 2014-02-27 | Toyobo Co Ltd | Direct-type surface light source device, and luminaire and display device using the same |
| WO2014051308A1 (en) * | 2012-09-25 | 2014-04-03 | Lee Young Ho | Led illuminating lens and illuminating device using same and applied to backlight unit |
| CN103868016A (en) * | 2012-12-11 | 2014-06-18 | 鸿富锦精密工业（深圳）有限公司 | Optical lens and light-emitting component using same |
| CN104296066A (en) * | 2013-07-16 | 2015-01-21 | 鸿富锦精密工业（深圳）有限公司 | Lens and power source module |
| US20150043218A1 (en) * | 2013-08-08 | 2015-02-12 | Hon Hai Precision Industry Co., Ltd. | Lens and light source module with same |
| CN104421691A (en) * | 2013-09-04 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode module |
| CN104421840A (en) * | 2013-09-02 | 2015-03-18 | 三星显示有限公司 | Lens module, light source assembly and backlight assembly having the lens module |
| US20150276170A1 (en) * | 2014-03-28 | 2015-10-01 | Asahi Rubber Inc | Light distribution lens |
| CN105674209A (en) * | 2014-11-19 | 2016-06-15 | 广东瑞捷光电股份有限公司 | Optical lens, light bar and direct type backlight module |
| CN105987350A (en) * | 2015-03-05 | 2016-10-05 | 深圳市耀嵘科技有限公司 | Led light distribution lens |
| CN110887021A (en) * | 2018-09-07 | 2020-03-17 | 深圳市聚飞光电股份有限公司 | Optical lens and light-emitting device thereof |
| CN212322049U (en) * | 2020-05-14 | 2021-01-08 | 深圳市爱图仕影像器材有限公司 | Lens and projection lamp |
| CN112682761A (en) * | 2019-10-18 | 2021-04-20 | 南昌欧菲生物识别技术有限公司 | Lens and optical system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389833A (en) * | 2012-05-10 | 2013-11-13 | 信泰光学(深圳)有限公司 | Light sensing type touch sensing device as well as light source module and optical lens of light sensing type touch sensing device |
| TWI489351B (en) * | 2013-02-08 | 2015-06-21 | Pixart Imaging Inc | Optical lens, image capturing device and optical touch system |
| CN103925558A (en) * | 2014-04-30 | 2014-07-16 | 广东恒润光电有限公司 | Strip-shaped lens for LED daylight lamp and large-angle LED daylight lamp |
| CN205301703U (en) * | 2016-01-19 | 2016-06-08 | 西安励德微系统科技有限公司 | Laser light curtain projection scanning device |
| US11366331B2 (en) * | 2017-12-05 | 2022-06-21 | Panasonic Intellectual Property Management Co., Ltd. | Beam converting optical system and light source device |
| CN107957032A (en) * | 2017-12-22 | 2018-04-24 | 欧普照明股份有限公司 | Lighting device |
| CN113419299B (en) * | 2021-05-31 | 2023-09-22 | 歌尔光学科技有限公司 | Optical lens, optical lens group and projection optical system |
-
2021
- 2021-05-31 CN CN202110606628.6A patent/CN113419299B/en active Active
- 2021-11-29 WO PCT/CN2021/133835 patent/WO2022252520A1/en unknown
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010177028A (en) * | 2009-01-29 | 2010-08-12 | Panasonic Electric Works Co Ltd | Optical lens, and road luminaire |
| CN101639196A (en) * | 2009-08-24 | 2010-02-03 | 深圳市九拓光电有限公司 | Light-emitting diode lens and lighting device |
| CN102705777A (en) * | 2012-06-29 | 2012-10-03 | 冠捷显示科技（厦门）有限公司 | Secondary lens with bottom of curved surface structure |
| JP2014038778A (en) * | 2012-08-17 | 2014-02-27 | Toyobo Co Ltd | Direct-type surface light source device, and luminaire and display device using the same |
| WO2014051308A1 (en) * | 2012-09-25 | 2014-04-03 | Lee Young Ho | Led illuminating lens and illuminating device using same and applied to backlight unit |
| CN103868016A (en) * | 2012-12-11 | 2014-06-18 | 鸿富锦精密工业（深圳）有限公司 | Optical lens and light-emitting component using same |
| CN103062705A (en) * | 2012-12-19 | 2013-04-24 | 冠捷显示科技（厦门）有限公司 | Large-angle diffusing optical lens |
| CN104296066A (en) * | 2013-07-16 | 2015-01-21 | 鸿富锦精密工业（深圳）有限公司 | Lens and power source module |
| US20150043218A1 (en) * | 2013-08-08 | 2015-02-12 | Hon Hai Precision Industry Co., Ltd. | Lens and light source module with same |
| CN104421840A (en) * | 2013-09-02 | 2015-03-18 | 三星显示有限公司 | Lens module, light source assembly and backlight assembly having the lens module |
| CN104421691A (en) * | 2013-09-04 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting diode module |
| US20150276170A1 (en) * | 2014-03-28 | 2015-10-01 | Asahi Rubber Inc | Light distribution lens |
| CN105674209A (en) * | 2014-11-19 | 2016-06-15 | 广东瑞捷光电股份有限公司 | Optical lens, light bar and direct type backlight module |
| CN105987350A (en) * | 2015-03-05 | 2016-10-05 | 深圳市耀嵘科技有限公司 | Led light distribution lens |
| CN110887021A (en) * | 2018-09-07 | 2020-03-17 | 深圳市聚飞光电股份有限公司 | Optical lens and light-emitting device thereof |
| CN112682761A (en) * | 2019-10-18 | 2021-04-20 | 南昌欧菲生物识别技术有限公司 | Lens and optical system |
| CN212322049U (en) * | 2020-05-14 | 2021-01-08 | 深圳市爱图仕影像器材有限公司 | Lens and projection lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252520A1 (en) * | 2021-05-31 | 2022-12-08 | 歌尔光学科技有限公司 | Optical lens, optical lens group and projection optical system |
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| Publication number | Publication date |
|---|---|
| WO2022252520A1 (en) | 2022-12-08 |
| CN113419299B (en) | 2023-09-22 |
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