Lens and lighting device
By designing a lens structure with multiple sub-lenses, the gradually increasing cross-sectional width and multi-layer lens structure, the problem of insufficient light mixing effect in stage lamps is solved, and better balance of lighting effects and light output efficiency is achieved.
Patent Information
- Application Number
- CN202420885099.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The light mixing effect of existing stage lamps lacks layers, making it difficult to find a balance between light output efficiency and light emission angle, resulting in poor light mixing effect.
A lens is designed, including a light-input surface and a light-out surface. A light-out groove is provided in the middle of the light-out surface. A first sub-lens are provided at the bottom of the light-out groove. A second sub-lens are provided on the outside of the light-out surface. A light-input groove is provided in the middle of the light-out surface. The cross-sectional width of the lens gradually increases and multiple sub-lenses are arranged to diffuse the light source, limit the light output angle, and form a better light mixing effect.
It realizes that while ensuring the light output efficiency and luminous angle, it significantly improves the light mixing effect and forms a better lighting effect, solving the problem of insufficient light mixing effect in the prior art.
Smart Images
Figure CN222210058U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lighting, in particular to a lens and a lighting device. Background Art
[0002] Stage lights are used to illuminate the stage and provide various lighting effects. LED (Light Emitting Diode) stage lights have the characteristics of low energy consumption and high brightness.
[0003] In order to ensure that the stage lights have a better light mixing effect while ensuring the light output efficiency and light angle, a better balance point is found between light output efficiency and light mixing and angle from the perspective of application and actual optical effect. It is necessary to add a lens to the light source. However, the current stage lights lack layers in light mixing effect, and the light mixing effect needs to be improved. Utility Model Content
[0004] Based on this, it is necessary to provide a lens and a lighting device.
[0005] A lens comprises: a lens body;
[0006] The lens body has a light incident surface and a light emitting surface at two ends in the first direction, respectively, the width of the light incident surface is smaller than the width of the light emitting surface, and the cross-sectional width of the lens body gradually increases from the end close to the light incident surface to the end close to the light emitting surface;
[0007] A light emitting groove is formed in a concave shape in the middle of the light emitting surface, and a plurality of first sub-lenses are formed in a convex shape at the bottom of the light emitting groove;
[0008] The light emitting surface is provided with a plurality of second sub-lenses protruding outwardly of the light emitting groove;
[0009] The middle part of the light incident surface is recessed to form a light incident groove, and the light incident groove is aligned with the light exit groove in a first direction.
[0010] In one embodiment, the width of each of the first sub-lenses is smaller than the width of the second sub-lens.
[0011] In one embodiment, the cross-sectional shape of each of the first sub-lenses and the cross-sectional shape of each of the second sub-lenses are set as:
[0012] The shape of the first sub-lens is a regular polygon; and / or
[0013] The second sub-lens is in the shape of a regular polygon.
[0014] In one embodiment, the regular polygon includes a regular hexagon.
[0015] In one embodiment, the lens body is configured in a truncated cone shape;
[0016] The lens body has the light incident surface and the light emitting surface at two ends in the axial direction respectively, the diameter of the light incident surface is smaller than the diameter of the light emitting surface, and the diameter of the lens body gradually increases from the end close to the light incident surface to the end close to the light emitting surface.
[0017] In one embodiment, the lens body is made of acrylic or PC.
[0018] In one embodiment, the width of the light entrance slot is greater than the width of the light exit slot.
[0019] In one of the embodiments, the bottom of the light incident groove is tilted, and the bottom of the light incident groove gradually tilts from the outer side to the middle toward the direction close to the light emitting surface.
[0020] A lighting device comprises the lens described in any one of the above embodiments.
[0021] In one of the embodiments, a light-transmitting plate is further included, wherein the number of the lenses is seven, thirty-six, fifty-four, sixty or seventy-two, and the light-transmitting plate is provided with mounting holes equal to the number of the lenses, and each of the lenses is installed in one of the mounting holes.
[0022] The lens and lighting device described above, by setting the cross-sectional width of the lens body to gradually increase from one end to the other end, and the light-emitting surface is larger than the light-emitting surface, can diffuse the light from the light source, and limit the light-emitting angle to a preset range, so that the luminous flux density per unit area reaches the required density, and the light-emitting effect is better. In addition, the light is emitted from the second sub-lens and the first sub-lens at the high and low levels respectively, which can be better diffused, and the first sub-lens and the second sub-lens can transmit and diffuse the light respectively, forming a mixed light effect, so that the lighting effect is better. It is achieved that while ensuring the light-emitting efficiency and the light-emitting angle, a better mixed light effect is presented. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0024] Figure 1 A schematic diagram of a three-dimensional structure of a lens in one direction according to an embodiment;
[0025] Figure 2A schematic diagram of the structure of a lens in one direction according to an embodiment;
[0026] Figure 3 is a schematic diagram of a three-dimensional structure of a lens in another direction according to an embodiment;
[0027] Figure 4 is a schematic diagram of the structure of a lens in another direction according to an embodiment;
[0028] Figure 5 is a schematic diagram of a cross-sectional structure of a lens according to an embodiment;
[0029] Figure 6 is a schematic diagram of a three-dimensional structure of a lens in another direction according to an embodiment;
[0030] Figure 7 The figure is a schematic structural diagram of a light-transmitting plate of a lighting device according to an embodiment. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, it is a lens 10 of an embodiment of the utility model, and the lens 10 comprises: a lens body 100; the lens body 100 has a light incident surface 110 and a light emitting surface 120 at two ends in the first direction, respectively, the width of the light incident surface 110 is smaller than the width of the light emitting surface 120, and the cross-sectional width of the lens body 100 gradually increases from one end close to the light incident surface 110 to the other end close to the light emitting surface 120; a light emitting groove 101 is recessed in the middle of the light emitting surface 120, and a plurality of first sub-lenses 131 are protruded on the bottom of the light emitting groove 101; a plurality of second sub-lenses 132 are protruded on the outer side of the light emitting groove 101 on the light emitting surface 120, and a light incident groove 102 is recessed in the middle of the light incident surface 110, and the light incident groove 102 is aligned with the light emitting groove 101 in the first direction.
[0033] In this embodiment, the lens body 100 can be applied to a lighting device, for example, a stage light. By setting the lens body 100 to be small at one end and large at the other end, it is beneficial to diffuse the light and present a better lighting effect and illumination effect. In this embodiment, the two ends of the lens body 100 in the first direction are respectively a first end 111 and a second end 112, the end face of the first end 111 is a light incident surface 110, and the end face of the second end 112 is a light emitting surface 120. The width of the lens body 100 gradually increases from the first end 111 to the second end 112. The first end of the lens body 100 is arranged close to the light source, and the light incident surface 110 faces the light source. In this way, the light of the light source passes through the light incident groove 102 of the light incident surface 110 and is incident on the lens body 100, and diffuses from the light emitting surface 120, so that the light of the light source can be diffused. In addition, the light emitting angle is limited to a preset range, so that the luminous flux density per unit area reaches the required density, so that the light emitting effect is better.
[0034] In this embodiment, the light emitting surface 120 is provided with two groups of sub-lenses at different heights, the second sub-lens 132 is located at the light emitting surface 120, the first sub-lens 131 is located at the bottom of the light emitting groove 101, and the convex surfaces of the first sub-lens 131 and the second sub-lens 132 are arranged in an arc surface, that is, the first sub-lens 131 is arranged in an arc convex arrangement at the bottom of the light emitting groove 101, and the second sub-lens 132 is arranged in an arc convex arrangement on the light emitting surface 120. In this way, light is emitted from the second sub-lens 132 and the first sub-lens 131 respectively, and can be better diffused, and the first sub-lens 131 and the second sub-lens 132 can respectively transmit and diffuse the light to form a mixed light effect, so that the lighting effect is better.
[0035] In the above embodiment, by setting the cross-sectional width of the lens body 100 to gradually increase from one end to the other end, and the light emitting surface 120 is larger than the light emitting surface 120, the light of the light source can be diffused, and the light emitting angle is limited to a preset range, so that the luminous flux density per unit area reaches the required density, so that the light emitting effect is better. In addition, the light is emitted from the second sub-lens 132 and the first sub-lens 131 at the high and low levels respectively, which can be better diffused, and the first sub-lens 131 and the second sub-lens 132 can transmit and diffuse the light respectively, forming a mixed light effect, so that the lighting effect is better. While ensuring the light emitting efficiency and the light emitting angle, a better mixed light effect is presented, thereby achieving a better balance between the light emitting efficiency and the mixed light angle from the perspective of sub-application and actual optical effect.
[0036] In one embodiment, the lens body 100 is made of acrylic or PC. In one embodiment, the lens body 100 is made of transparent acrylic. In one embodiment, the lens body 100 is made of transparent PC (Polycarbonate). In this embodiment, the lens body 100 is made of acrylic material in one piece.
[0037] In order to achieve a better light emitting effect of the light source, in one embodiment, Figures 1 to 4 As shown, the lens body 100 is configured to be a truncated cone; the lens body 100 has the light incident surface 110 and the light emitting surface 120 at both ends of the axial direction, the diameter of the light incident surface 110 is smaller than the diameter of the light emitting surface 120, and the diameter of the lens body 100 gradually increases from the end close to the light incident surface 110 to the end close to the light emitting surface 120.
[0038] In this embodiment, the first direction is axial, the cross-section of the lens body 100 is circular, and the light incident surface 110 and the light exit surface 120 are both set to be circular, which can avoid uneven light emission caused by the corners of squares, polygons or triangles. The truncated cone-shaped lens body 100 can better diffuse the light of the light source to form a better mixed light effect.
[0039] In order to achieve a better light mixing effect, in one embodiment, Figure 4 As shown, the width of each of the first sub-lenses 131 is smaller than the width of the second sub-lens 132 .
[0040] In this embodiment, since the first sub-lens 131 is located at the bottom of the light output groove 101, the first sub-lens 131 is closer to the light source. Therefore, the first sub-lens 131 can diffuse the light at a position closer to the light source. The width of the first sub-lens 131 is smaller than the width of the second sub-lens 132, and a larger diffusion range can be formed, thereby forming a better light mixing effect between the light passing through the first sub-lens 131 and the light passing through the second sub-lens 132.
[0041] In one embodiment, the cross-sectional shape of each of the first sub-lenses 131 and the cross-sectional shape of each of the second sub-lenses are set to:
[0042] The shape of the first sub-lens 131 is a regular polygon; and / or the shape of the second sub-lens 132 is a regular polygon.
[0043] In one embodiment, the cross-sectional shape of each of the first sub-lenses 131 is a regular polygon, and the cross-sectional shape of each of the second sub-lenses 132 is other shapes, such as a circle, a polygon, a triangle, etc.; In one embodiment, the cross-sectional shape of each of the second sub-lenses 132 is a regular polygon, and the cross-sectional shape of each of the first sub-lenses 131 is other shapes, such as a circle, a polygon, a triangle, etc.;
[0044] In one embodiment, the cross-sectional shape of each of the first sub-lenses 131 is a regular polygon, and the cross-sectional shape of each of the second sub-lenses 132 is a regular polygon.
[0045] In this embodiment, the cross-sectional shape of each first sub-lens 131 and the cross-sectional shape of the second sub-lens 132 are both set to be regular polygons, which is conducive to the diffusion of light in multiple directions after passing through, thereby forming a better light mixing effect.
[0046] In one embodiment, the regular polygon comprises a regular octagon. In one embodiment, the regular polygon comprises a regular dodecagon.
[0047] In one embodiment, Figure 4 As shown, the regular polygon includes a regular hexagon. In this embodiment, the cross-sectional shape of each of the first sub-lenses 131 is a regular hexagon, and the cross-sectional shape of each of the second sub-lenses 132 is a regular hexagon, so that the first sub-lenses 131 can be better connected and arranged more regularly, and the second sub-lenses 132 can be better connected and arranged more regularly, so that the diffusion direction of the light passing through the first sub-lens 131 and the second sub-lens 132 is more regular, so that the light mixing effect is better.
[0048] In one embodiment, the width of the light entrance groove 102 is greater than the width of the light exit groove 101. In this embodiment, the width of the light entrance groove 102 is larger, which is conducive to better accommodating the light source, better covering the light source, and facilitating the light of the light source to be fully incident on the lens body 100, thereby diffusing to the outside through the lens body 100. In one embodiment, the light entrance groove 102 is used to irradiate the outside of the LED light source, so that the light of the LED lamp can be completely absorbed by the lens body 100, transmitted and diffused to the outside through the first sub-lens 131 and the second sub-lens 132 of the lens body 100, and because the lens body 100 is set in a truncated cone shape, the side of the lens body 100 can effectively avoid the emission of light, so that the light is reflected on the side of the lens body 100 and concentrated toward the first sub-lens 131 and the second sub-lens 132, avoiding the diffusion of light from the side of the lens body 100, so that the light exit effect is better.
[0049] In order to make the light in the light entrance groove 102 more concentrated toward the first sub-lens 131, the light is scattered and diffused by the first sub-lens 131. In one embodiment, Figure 5 As shown, the bottom of the light incident groove 102 is tilted, and the bottom of the light incident groove 102 gradually tilts from the outer side to the middle toward the direction close to the light emitting surface 120.
[0050] In the present embodiment, the bottom of the light entrance groove 102 is arranged in a cone shape, and the bottom of the light entrance groove 102 gradually tilts toward the direction of the first sub-lens 131 from the outside to the middle. This is beneficial to focusing the light in the light entrance groove 102, and enables the bottom of the light entrance groove 102 to better transmit light, avoiding reflection of light by the bottom of the light entrance groove 102, so that the light can pass through the bottom of the light entrance groove 102 more fully, and be transmitted to the outside through the first sub-lens 131, so that the light transmission effect is better.
[0051] In one embodiment, Figure 5 As shown, the width of the light entrance groove 102 decreases with the increase of depth. In this embodiment, the width of the light entrance groove 102 gradually decreases from the end away from the light exit surface 120 to the end close to the light exit surface 120; in one embodiment, the width of the light exit groove 101 decreases with the increase of depth. In this embodiment, the width of the light exit groove 101 gradually decreases from the end away from the light entrance surface 110 to the end close to the light entrance surface 110.
[0052] In this way, the width of the light entrance groove 102 at the end close to the light source is larger, which is conducive to better accommodating the light source, receiving the light from the light source, and transmitting it to the outside, while the width of the light output groove 101 gradually increases from the end close to the light entrance surface 110 to the end far from the light entrance surface 110, which is conducive to the diffusion of light and makes the light output effect better.
[0053] In one embodiment, Figure 5 As shown, a concave groove 102a is provided at the bottom of the light incident groove 102, and the shape of the concave groove 102a is conical, and the width of the concave groove 102a gradually decreases from the end away from the light incident surface 110 to the end close to the light incident surface 110. In this way, the conical concave groove 102a is provided at the bottom of the light incident groove 102, which is conducive to further improving the light diffusion effect and making the light output effect better.
[0054] In order to further improve the light diffusion effect, in one embodiment, a frosted layer is provided on the sidewall of the recessed groove 102a. In this embodiment, by providing a frosted layer structure on the sidewall of the recessed groove 102a, light can be further diffused, resulting in a better diffusion effect.
[0055] In order to further improve the light diffusion effect, in one embodiment, Figure 5As shown, the side wall of the recessed groove 102a is arranged as an arc surface, that is, the cross-sectional shape of the side wall of the recessed groove 102a is an arc, and the side wall of the recessed groove 102a is arranged to be an arc-shaped convexity from both ends to the middle gradually toward the direction of the entrance surface 110. In this way, the area of the side wall of the recessed groove 102a is increased, which is beneficial to increase the area of light entering, and because the side wall of the recessed groove 102a is arranged as an arc surface, it is beneficial to diffuse light, so that the diffusion effect is better.
[0056] In one embodiment, a lighting device is provided, comprising the lens 10 described in any one of the above embodiments.
[0057] In one embodiment, the lighting device further includes a light-transmitting plate, the number of the lenses is seven, thirty-six, fifty-four, sixty or seventy-two, the light-transmitting plate is provided with mounting holes equal to the number of the lenses, and each of the lenses is installed in one of the mounting holes.
[0058] In this embodiment, the lighting device can be a stage lighting device, or other devices for providing lighting effects or illumination effects. The lighting device also includes a light source, which can be an LED light. When installing, please refer to Figure 7 , Figure 7 The lighting device includes a substrate (not shown) and a light-transmitting plate 200. The substrate is provided with an LED lamp, and the substrate is used to power the LED lamp. The light-transmitting plate 200 is provided with a plurality of mounting holes 201, and the light-transmitting plate 200 is provided with mounting pins 210. The substrate is provided with buckle holes. By inserting the mounting pins 210 into the buckle holes, the light-transmitting plate 200 can be connected to the substrate, and the light-transmitting plate 200 and the substrate are arranged at intervals. During installation, the light-incident surface 110 of the lens 10 is directed toward the LED lamp, and the lens body 100 is inserted into the mounting hole 201 of the light-transmitting plate 200 so that the light-incident groove 102 is aligned with the LED lamp, and the installation of the lens 10 is completed. The light emitted by the LED lamp passes through the lens body 100 through the light-incident groove 102, and is transmitted to the outside through the first sub-lens 131 and the second sub-lens 132. In this embodiment, the light-transmitting plate 200 is provided with 36 mounting holes, which are suitable for installing 36 lenses 10 and a lighting device suitable for 36 LED lamps.
[0059] In this embodiment, the number of the lenses can be seven, thirty-six, fifty-four, sixty or seventy-two, the light-transmitting plate is provided with mounting holes equal to the number of the lenses, and each lens is mounted in one of the mounting holes. In this embodiment, the lenses can be adapted to seven-in-one, thirty-six-in-one, fifty-four-in-one, sixty-in-one or seventy-two-in-one lighting devices.
[0060] The above-mentioned lighting device, by setting the cross-sectional width of the lens body 100 to gradually increase from one end to the other end, and the light exit surface 120 is larger than the light exit surface 120, can diffuse the light of the light source, and limit the light exit angle to a preset range, so that the luminous flux density per unit area reaches the required density, so that the light exit effect is better. In addition, the light is emitted from the second sub-lens 132 and the first sub-lens 131 at the upper and lower levels respectively, which can be better diffused, and the first sub-lens 131 and the second sub-lens 132 can transmit and diffuse the light respectively, forming a mixed light effect, so that the lighting effect is better.
[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0062] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A lens, characterized in that: include: lens body; The lens body has a light incident surface and a light emitting surface at both ends in the first direction, the width of the light incident surface is smaller than the width of the light emitting surface, and the cross-sectional width of the lens body gradually increases from the end close to the light incident surface to the end close to the light emitting surface; A light emitting groove is provided in a concave portion in the middle of the light emitting surface, and a plurality of first sub-lenses are provided on a convex portion at the bottom of the light emitting groove; The light emitting surface is provided with a plurality of second sub-lenses protruding from the outer side of the light emitting groove; A middle portion of the light incident surface is recessed to form a light incident groove, and the light incident groove is aligned with the light exit groove in a first direction.
2. The lens according to claim 1, wherein The width of each of the first sub-lenses is smaller than the width of the second sub-lens.
3. The lens according to claim 1, wherein The cross-sectional shape of each of the first sub-lenses and the cross-sectional shape of each of the second sub-lenses are set to: The shape of the first sub-lens is a regular polygon; and / or The second sub-lens is in the shape of a regular polygon.
4. The lens according to claim 3, wherein The regular polygon includes a regular hexagon.
5. The lens according to claim 1, wherein The lens body is configured in a truncated cone shape; The lens body has the light incident surface and the light emitting surface at both ends of the axial direction, the diameter of the light incident surface is smaller than the diameter of the light emitting surface, and the diameter of the lens body gradually increases from the end close to the light incident surface to the end close to the light emitting surface.
6. The lens according to claim 1, wherein The lens body is made of acrylic or PC.
7. The lens according to claim 1, wherein The width of the light entrance slot is greater than the width of the light exit slot.
8. The lens according to any one of claims 1 to 7, characterized in that The bottom of the light incident groove is tilted, and the bottom of the light incident groove gradually tilts from the outer side to the middle toward the direction close to the light emitting surface.
9. A lighting device, characterized in that: The lens comprises the lens described in any one of claims 1 to 8.
10. The lighting device according to claim 9, characterized in that: It also includes a light-transmitting plate, the number of the lenses is seven, thirty-six, fifty-four, sixty or seventy-two, the light-transmitting plate is provided with mounting holes equal to the number of the lenses, and each of the lenses is installed in one of the mounting holes.