High-color-rendering lamplight lens
By designing a high-color rendering lighting lens with a constant position of the first lens group and the light source assembly, combined with a sliding-adjustable second lens group and lens coating layer, the problems of insufficient zoom range and optical performance of the lens group are solved, and a large optical magnification and high color rendering effect are achieved to meet the needs of multiple scenarios.
Patent Information
- Application Number
- CN202423104741.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-14
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-14
AI Technical Summary
In existing stage lighting designs, the zoom range and optical performance of the lens group are limited, making it difficult to achieve large optical zoom and high color rendering effects.
It adopts a lighting lens design consisting of the first lens group, the second lens group and the third lens group. The position of the first lens group and the light source assembly is constant, the second lens group and the third lens group can be slid and adjusted, and the lens is coated with a high color rendering index coating layer. The lens combination is designed as a combination of positive and negative focal lengths to correct aberrations.
It achieves a large optical zoom range and a high color rendering index, with excellent color rendering performance, meeting the needs of scenes such as theaters, stages, and sports broadcasts, and improving image clarity and color reproduction.
Smart Images
Figure CN223411918U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of stage lighting design, and in particular to a high color rendering lighting lens. Background Art
[0002] Stage lighting is one of the indispensable and important equipment in modern performance venues. Its main function is to create various visual effects on the stage and enhance the overall atmosphere of the performance.
[0003] In existing stage lighting designs, a common approach involves using a single lens group to achieve basic focusing and focusing functions. Specifically, some designs employ a single lens group and achieve focusing by adjusting the distance between the lens group and the light source. However, this approach is limited in terms of zoom range and optical performance. Utility Model Content
[0004] In order to achieve a large optical zoom range, high light efficiency, and good color rendering index, the present application provides a high color rendering lighting lens.
[0005] The high color rendering lighting lens provided in this application adopts the following technical solution:
[0006] A high color rendering light lens includes a first lens group, a second lens group, and a third lens group, which are arranged in sequence along the optical axis direction of a light source assembly. The relative position between the first lens group and the light source assembly is constant. The third lens group is located between the second lens group and the light source assembly. The second lens group and the third lens group can be slidably adjusted between the first lens group and the light source assembly. The first lens group and the third lens group both have positive focal lengths, and the second lens group has a negative focal length. The lenses of the first lens group, the second lens group, and the third lens group are all coated with a coating layer with a high color rendering index.
[0007] By adopting the above technical solution, the relative position between the first lens group and the light source assembly is constant, ensuring the stability and consistency of the optical path; the second lens group and the third lens group can be slid and adjusted between the first lens group and the light source assembly, realizing flexible adjustment of the lens group to meet the needs of different distances and angles; the first lens group and the third lens group both have positive focal lengths, and the second lens group has a negative focal length. This combination design effectively corrects aberrations and improves image clarity; the lenses are coated with a high color rendering index coating layer, which significantly improves the transmittance and color rendering performance, making the color reproduction of the stage lighting higher and the visual effect better; thus, the lens used for the stage light can achieve a large optical zoom range and high light efficiency, with a good color rendering index, fully meeting the needs of application scenarios such as theaters, stages, and sports broadcasts.
[0008] Preferably, the first lens group includes a first lens barrel fixed to the light source assembly, and a first positive lens 1, a first positive lens 2 and a first negative lens arranged in sequence in the first lens barrel along the optical axis direction, and the first negative lens is located at one end of the first lens barrel close to the light source assembly.
[0009] By adopting the above technical solution, the design of the first lens group allows the light to be doubly corrected by the first positive lens 1 and the first positive lens 2, thereby improving the imaging quality and reducing chromatic aberration.
[0010] Preferably, a first locking ring 1 and a first locking ring 2 are sequentially provided at both ends of the first lens barrel along the optical axis direction, the first positive lens 1 is fixed in the first lens barrel by the first locking ring 1, and the first positive lens 2 and the first negative lens are fixed in the first lens barrel by the first locking ring 2.
[0011] By adopting the above technical solution, the first positive lens 1 can be firmly fixed in the first lens barrel by the first locking ring 1, ensuring that the first positive lens 1 will not loosen or shift during use; at the same time, the first positive lens 2 and the first negative lens are fixed in the first lens barrel by the second locking ring, ensuring that the first positive lens 2 and the first negative lens will not loosen or shift during use, thereby improving the stability and reliability of the lens.
[0012] Preferably, the second lens group includes a second lens barrel arranged on an end of the first lens group close to the light source assembly, and a second negative lens 1, a second negative lens 2 and a second positive lens arranged in the second lens barrel in sequence along the optical axis direction, and the second positive lens is located at an end of the second lens barrel away from the first lens group.
[0013] By adopting the above technical solution, the second negative lens 1, the second negative lens 2 and the second positive lens arranged in the second lens barrel can effectively correct chromatic aberration and spherical aberration, thereby improving imaging quality.
[0014] Preferably, the second lens barrel is provided with a second locking ring and a second spacer ring in sequence along the optical axis direction, and the second negative lens 1 is fixed to the second negative lens 2, the second spacer ring and the second positive lens in the second lens barrel at the same time through the second locking ring.
[0015] By adopting the above technical solution, the design of the second locking ring and the second spacer ring enables the second negative lens 1, the second negative lens 2 and the second positive lens to be firmly fixed in the second lens barrel, ensuring the overall structural stability and optical performance of the lens group.
[0016] Preferably, the third lens group includes a third lens barrel arranged on the end of the second lens group away from the first lens group, and a third positive lens 1, a third positive lens 2, a third negative lens 1, a third positive lens 3, a third negative lens 2, a third positive lens 4, a third positive lens 5 and a third positive lens 6 arranged in sequence in the third lens barrel along the optical axis direction, and the third positive lens 6 is located at the end of the third lens barrel away from the second lens group.
[0017] By adopting the above technical solution, the arrangement of the third positive lens 1, the third positive lens 2, the third negative lens 1, the third positive lens 3, the third negative lens 2, the third positive lens 4, the third positive lens 5 and the third positive lens 6 can effectively balance the spherical aberration and chromatic aberration of the optical system, ensure that the light is focused more accurately after passing through the multi-stage lenses, and improve the clarity and color reproduction ability of the stage lighting.
[0018] Preferably, the third lens barrel is provided with a third spacer ring 1, a third spacer ring 2, a third spacer ring 3, a third spacer ring 4, a third spacer ring 5 and a third locking ring in sequence along the optical axis direction. The third spacer ring 1 is located between the third positive lens 1 and the third positive lens 2, the third spacer ring 2 is located between the third negative lens 1 and the third positive lens 3, the third spacer ring 3 is located between the third positive lens 3 and the third negative lens 2, the third spacer ring 4 is located between the third positive lens 4 and the third positive lens 5, the third spacer ring 5 is located between the third positive lens 5 and the third positive lens 6, and the third locking ring is threadedly connected to the bottom end of the third lens barrel.
[0019] By adopting the above technical solution, the third spacer ring 1, the third spacer ring 2, the third spacer ring 3, the third spacer ring 4 and the third spacer ring 5 are respectively located between different lenses, which can effectively reduce the relative movement between the lenses and ensure the stability of the optical performance. The third locking ring is threadedly connected to the bottom end of the third lens barrel, further strengthening the fixing effect of the lens group and ensuring the stability of the lens group during long-term use.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. The relative position between the first lens group and the light source assembly is constant, ensuring the stability and consistency of the optical path; the second and third lens groups can be slid and adjusted between the first lens group and the light source assembly, realizing flexible adjustment of the lens group to meet the needs of different distances and angles; the first and third lens groups are both positive focal lengths, and the second lens group is negative focal length. This combination design effectively corrects aberrations and improves image clarity; the lenses are coated with a high color rendering index coating, which significantly improves the transmittance and color rendering performance, making the color reproduction of stage lighting higher and the visual effect better; thus, the lens used in this stage light can achieve a large optical zoom range and high light efficiency, with a good color rendering index, fully meeting the needs of application scenarios such as theater, stage, and sports broadcasting;
[0022] 2. The design of the first lens group allows light to be double-corrected by the first positive lens (1) and the first positive lens (2), improving image quality and reducing chromatic aberration.
[0023] 3. The second negative lens 1, the second negative lens 2 and the second positive lens arranged in the second lens barrel can effectively correct chromatic aberration and spherical aberration, thereby improving imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of this application.
[0025] Figure 2 It is a cross-sectional view of the first lens group of this application.
[0026] Figure 3 middle Figure 2 A partial enlarged view of part A.
[0027] Figure 4 It is a cross-sectional view of the second lens group of this application.
[0028] Figure 5 middle Figure 4 A partial enlarged view of part B.
[0029] Figure 6 It is a cross-sectional view of the third lens group of this application.
[0030] Figure 7 middle Figure 6 A partial enlarged view of part C.
[0031] Explanation of the accompanying symbols: 1. first lens barrel; 11. first positive lens 1; 12. first positive lens 2; 13. first negative lens; 14. first locking ring 1; 15. first locking ring 2; 16. first bracket; 17. first limiting ring; 2. second lens barrel; 21. second negative lens 1; 22. second negative lens 2; 23. second positive lens; 24. second locking ring; 25. second spacer; 26. second limiting portion; 27. connecting ring; 3 , the third lens barrel; 31. the third positive lens one; 32. the third positive lens two; 33. the third negative lens one; 34. the third positive lens three; 35. the third negative lens two; 36. the third positive lens four; 37. the third positive lens five; 38. the third positive lens six; 4. the third spacer ring one; 41. the third spacer ring two; 42. the third spacer ring three; 43. the third spacer ring four; 44. the third spacer ring five; 45. the third locking ring; 451. the third limiting part. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-7 This application is described in further detail.
[0033] The embodiment of the present application discloses a high color rendering light lens. Figure 1-3 The high color rendering light lens includes a first lens group, a second lens group and a third lens group which are arranged in sequence along the optical axis direction of the light source assembly. The relative position between the first lens group and the light source assembly is constant. The third lens group is located between the second lens group and the light source assembly. The second lens group and the third lens group can be slidably adjusted between the first lens group and the light source assembly. The first lens group and the third lens group both have positive focal lengths, and the second lens group has a negative focal length. The lenses of the first lens group, the second lens group and the third lens group are all coated with a coating layer with a high color rendering index.
[0034] The first lens group includes a first lens barrel 1 fixed to the housing of the light source assembly, and a first positive lens 11, a first positive lens 2 12, and a first negative lens 13 sequentially arranged within the first lens barrel 1 along the optical axis. The first negative lens 13 is located at an end of the first lens barrel 1 proximal to the light source assembly. A first locking ring 14 and a first locking ring 2 15 are sequentially arranged at both ends of the first lens barrel 1 along the optical axis. The first locking ring 14 is threadedly connected to the top end of the first lens barrel 1, and the first locking ring 2 15 is threadedly connected to the bottom end of the first lens barrel 1. An annular first supporting groove 16 is defined at the top end of the first lens barrel 1 and on the inner sidewall of the first lens barrel 1. The first supporting groove 16 supports the first positive lens 11. The first positive lens 11 is retained between the retaining portion of the first locking ring 14 and the first supporting groove 16, thereby securing the first positive lens 11 within the first lens barrel 1 via the first locking ring 14.
[0035] The inner side wall of the first lens barrel 1 is fixedly connected with a radially extending first limiting ring 17, and the first positive lens 12 and the first negative lens 13 are limited between the limiting portion of the first locking ring 15 and the bottom surface of the first limiting ring 17, so that the first positive lens 12 and the first negative lens 13 are fixed in the first lens barrel 1 through the first locking ring 15.
[0036] The first positive lens 11 and the first positive lens 2 12 can both be made of crown glass, such as K or HK series, ZK series or H-ZK series; the first negative lens 13 can be made of flint glass, such as ZF series or H-ZF series.
[0037] Reference Figure 2 and Figure 4 The second lens group includes a second lens barrel 2 arranged on one end of the first lens group close to the light source assembly, and a second negative lens 1 21, a second negative lens 2 22 and a second positive lens 23 arranged in sequence in the second lens barrel 2 along the optical axis direction, and the second positive lens 23 is located at the end of the second lens barrel 2 away from the first lens group.
[0038] Reference Figure 4 and Figure 5The second lens barrel 2 is provided with a second locking ring 24 and a second spacer ring 25 in sequence along the optical axis direction. The outer side of the second spacer ring 25 is in contact with the inner side wall of the second lens barrel 2, and the second spacer ring 25 is located between the second negative lens 22 and the second positive lens 23. A second limiting portion 26 radially extends from the bottom opening of the second lens barrel 2, and the top end of the second limiting portion 26 supports the bottom edge of the second positive lens 23. The second positive lens 23 is limited between the top end of the second limiting portion 26 and the bottom end of the second spacer ring 25. The top end of the second spacer ring 25 supports the second negative lens 2 22, the top edge of the second negative lens 2 22 abuts against the bottom edge of the second negative lens 1 21, the second locking ring 24 is threadedly connected to the top end of the second lens barrel 2, and the second negative lens 1 21 is limited between the limiting part of the second locking ring 24 and the top edge of the second negative lens 2 22; thus, the second negative lens 1 21 simultaneously fixes the second negative lens 2 22, the second spacer ring 25 and the second positive lens 23 in the second lens barrel 2 through the second locking ring 24.
[0039] The second negative lens 1 21 and the second negative lens 2 22 can both be made of crown glass, such as K or HK series, ZK series or H-ZK series, and the second positive lens 23 can be made of flint glass, such as ZF series or H-ZF series.
[0040] Reference Figure 4 and Figure 6 The third lens group includes a third lens barrel 3 arranged on the end of the second lens group away from the first lens group, and a third positive lens 1 31, a third positive lens 2 32, a third negative lens 1 33, a third positive lens 34, a third negative lens 2 35, a third positive lens 4 36, a third positive lens 5 37 and a third positive lens 6 38 arranged in sequence in the third lens barrel 3 along the optical axis direction, and the third positive lens 6 38 is located at the end of the third lens barrel 3 away from the second lens group.
[0041] Reference Figure 6 and Figure 7 The third lens barrel 3 is provided with a third spacer ring 1 4, a third spacer ring 2 41, a third spacer ring 3 42, a third spacer ring 43, a third spacer ring 5 44, and a third locking ring 45 in sequence along the optical axis. The third locking ring 45 is threadedly connected to the bottom end of the third lens barrel 3. A third limiting portion 451 extends radially from the bottom opening of the third locking ring 45. The top end of the third limiting portion 451 supports the third positive lens 6 38. The third spacer ring 5 44 is located between the third positive lens 5 37 and the third positive lens 6 38 to limit the third positive lens 6 38 between the third limiting portion 451 and the third spacer ring 5 44.
[0042] The third spacer ring 1 4 is located between the third positive lens 1 31 and the third positive lens 2 32, the third spacer ring 2 41 is located between the third negative lens 1 33 and the third positive lens 3 34, the third spacer ring 3 42 is located between the third positive lens 3 34 and the third negative lens 2 35, and the third spacer ring 4 43 is located between the third positive lens 4 36 and the third positive lens 5 37.
[0043] The third positive lens 1 31 and the third positive lens 2 32 can both be made of crown glass, such as the K or HK series, ZK series, or H-ZK series. The third negative lens 1 33, the third positive lens 34, and the third negative lens 2 35 can all be made of flint glass, such as the ZF series or H-ZF series. The third positive lens 4 36, the third positive lens 5 37, and the third positive lens 6 38 can all be made of crown glass or flint glass.
[0044] In this embodiment, the high color rendering index coating layer can be made of any of silicon oxide (SiO2), zirconium oxide (ZrO2), magnesium fluoride (MgF2), or silicon nitride (Si3N4). This high color rendering index coating layer is sequentially applied to the upper surfaces of the first positive lens 11, the first positive lens 2 12, the first negative lens 13, the second negative lens 1 21, the second negative lens 2 22, the second positive lens 23, the third positive lens 1 31, the third positive lens 2 32, the third negative lens 1 33, the third positive lens 34, the third negative lens 2 35, the third positive lens 4 36, the third positive lens 5 37, and the third positive lens 6 38. All lenses are coated with the high color rendering index coating layer, further improving light transmittance and color rendering, resulting in a color rendering index exceeding 95 and an R9 value greater than 95 for the stage lighting, meeting high-standard stage lighting requirements.
[0045] In order to realize the sliding adjustment of the second lens group and the third lens group between the first lens group and the light source assembly, a connecting ring 27 is fixedly sleeved on the circumference of the first lens barrel 1, the second lens barrel 2 and the third lens barrel 3, and a guide rod (not shown in the figure) is vertically passed through the connecting ring 27. The guide rod is slidably connected to the connecting ring, and the top end of the guide rod is fixedly connected to the top of the inner wall of the shell of the light source assembly, and the bottom end of the guide rod is fixedly connected to the bottom of the inner wall of the shell of the light source assembly.
[0046] Two bolts (not shown) are rotatably connected to the light source assembly housing. The head of the upper bolt is located above the light source assembly housing, while the head of the lower bolt is located below the housing. The bolts and the guide rods are symmetrically arranged on either side of the connecting ring. The upper bolt passes through the connecting ring 27 on the first lens barrel 1 and is threadedly connected to the connecting ring 27 on the second lens barrel 2. The lower bolt is threadedly connected to the connecting ring 27 on the third lens barrel 3.
[0047] Therefore, under the limiting action of the guide rod, when the upper bolt is rotated, the upper bolt drives the second lens barrel 2 to move vertically within the housing of the light source assembly. When the lower bolt is rotated, the lower bolt drives the third lens barrel 3 to move vertically within the housing of the light source assembly, thereby achieving the purpose of adjustment.
[0048] The implementation principle of a high color rendering lighting lens in the embodiment of the present application is as follows: the relative position between the first lens group and the light source assembly is constant, ensuring the stability and consistency of the optical path; the relative position between the first lens group and the second lens group is constant, ensuring the optical path matching between the two lens groups and improving the imaging quality; the second lens group and the third lens group are slidably adjustable, realizing flexible adjustment of the lens group to meet the needs of different distances and angles; the first lens group and the third lens group both have positive focal lengths, and the second lens group has a negative focal length. This combination design effectively corrects aberrations and improves image clarity; the lenses are coated with a coating layer with a high color rendering index, which significantly improves the transmittance and color rendering performance, making the color reproduction of the stage lighting higher and the visual effect better.
[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A high color rendering lighting lens, characterized by: The invention comprises a first lens group, a second lens group and a third lens group which are sequentially arranged along the optical axis direction of the light source assembly. The relative position between the first lens group and the light source assembly is constant. The third lens group is located between the second lens group and the light source assembly. The second lens group and the third lens group can be slidably adjusted between the first lens group and the light source assembly. The first lens group and the third lens group both have positive focal lengths, and the second lens group has a negative focal length. The lenses of the first lens group, the second lens group and the third lens group are all coated with a coating layer with a high color rendering index.
2. The high color rendering lighting lens according to claim 1, characterized in that: The first lens group comprises a first lens barrel (1) fixed to a housing of a light source assembly, and a first positive lens (11), a first positive lens (12), and a first negative lens (13) sequentially arranged in the first lens barrel (1) along an optical axis direction, wherein the first negative lens (13) is located at one end of the first lens barrel (1) close to the light source assembly.
3. The high color rendering lighting lens according to claim 2, characterized in that: A first locking ring (14) and a first locking ring (15) are sequentially provided at both ends of the first lens barrel (1) along the optical axis direction; the first positive lens (11) is fixed in the first lens barrel (1) by the first locking ring (14); and the first positive lens (12) and the first negative lens (13) are fixed in the first lens barrel (1) by the first locking ring (15).
4. The high color rendering lighting lens according to claim 1, characterized in that: The second lens group comprises a second lens barrel (2) arranged on an end of the first lens group close to the light source assembly, and a second negative lens (21), a second negative lens (22) and a second positive lens (23) arranged in sequence in the second lens barrel (2) along the optical axis direction, and the second positive lens (23) is located at an end of the second lens barrel (2) away from the first lens group.
5. The high color rendering lighting lens according to claim 4, characterized in that: The second lens barrel (2) is provided with a second locking ring (24) and a second spacer ring (25) in sequence along the optical axis direction; the second negative lens (21) is fixed to the second negative lens (22), the second spacer ring (25) and the second positive lens (23) in the second lens barrel (2) via the second locking ring (24).
6. The high color rendering lighting lens according to claim 1, characterized in that: The third lens group comprises a third lens barrel (3) arranged on an end of the second lens group away from the first lens group, and a third positive lens 1 (31), a third positive lens 2 (32), a third negative lens 1 (33), a third positive lens 3 (34), a third negative lens 2 (35), a third positive lens 4 (36), a third positive lens 5 (37) and a third positive lens 6 (38) arranged in sequence in the third lens barrel (3) along the optical axis direction, and the third positive lens 6 (38) is located at the end of the third lens barrel (3) away from the second lens group.
7. The high color rendering lighting lens according to claim 6, characterized in that: The third lens barrel (3) is provided with a third spacer ring 1 (4), a third spacer ring 2 (41), a third spacer ring 3 (42), a third spacer ring 4 (43), a third spacer ring 5 (44) and a third locking ring (45) in sequence along the optical axis direction. The third spacer ring 1 (4) is located between the third positive lens 1 (31) and the third positive lens 2 (32). The third spacer ring 2 (41) is located between the third negative lens 1 (33) and the third positive lens 3 (34). The third spacer ring 3 (42) is located between the third positive lens 3 (34) and the third negative lens 2 (35). The third spacer ring 4 (43) is located between the third positive lens 4 (36) and the third positive lens 5 (37). The third spacer ring 5 (44) is located between the third positive lens 5 (37) and the third positive lens 6 (38). The third locking ring (45) is threadedly connected to the bottom end of the third lens barrel (3).