CN210801025U - Optical element and illuminating lamp with same - Google Patents
Optical element and illuminating lamp with same Download PDFInfo
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- CN210801025U CN210801025U CN201920921830.6U CN201920921830U CN210801025U CN 210801025 U CN210801025 U CN 210801025U CN 201920921830 U CN201920921830 U CN 201920921830U CN 210801025 U CN210801025 U CN 210801025U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 57
- 238000005286 illumination Methods 0.000 claims description 19
- 230000001154 acute effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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Abstract
The utility model discloses an optical element, including the optical lens of at least one bar, on perpendicular length direction's cross-section, optical lens includes: the light source setting part is provided with a central shaft for setting the light source; the light incidence surface faces the light source arrangement position, and incidence light rays of the light source comprise small-angle light rays and large-angle light rays; the two first total reflection surfaces are positioned on the opposite sides of the light incidence surface and are respectively arranged on the two sides of the central shaft, and one ends of the two first total reflection surfaces, which are close to the light source arrangement position, are mutually closed; two first light exit surfaces arranged on both sides of the two first total reflection surfaces in a direction perpendicular to the central axis; two second total reflection surfaces, which are located on the opposite sides of the light incidence surface, are respectively arranged on the two sides of the central shaft, and are obliquely arranged outwards; and the two second light emergent surfaces are respectively arranged on two sides of the central shaft and positioned between the second total reflection surface and the first light emergent surface on the same side.
Description
Technical Field
The utility model relates to the technical field of lighting technology, especially an optical element and have this optical element's light.
Background
With the popularization of LED lamps, more and more occasions begin to use LED lamps, such as home lighting in bedrooms, kitchens, living rooms and the like, and commercial lighting in refrigerators, cold chains, shelves and the like.
The LED chip is a point light source, and the light intensity distribution is fixed, but in actual use, it needs to focus or illuminate uniformly in a large area.
With the development of lighting technology, new requirements are also provided, such as miniaturization of the volume and requirement of uniform illumination of a large area, and at this time, the existing lamp cannot meet the requirements.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an optical element and an illumination lamp with the optical element to solve the above technical problems.
An optical element comprising at least one optical lens in the form of a strip, characterized in that, in a cross-section perpendicular to the longitudinal direction, said optical lens comprises:
the light source setting part is provided with a central shaft for setting the light source;
the light incidence surface faces the light source arrangement position, and incidence light rays of the light source comprise small-angle light rays and large-angle light rays;
the two first total reflection surfaces are positioned on the opposite sides of the light incidence surface and are respectively arranged on the two sides of the central shaft, and one ends of the two first total reflection surfaces, which are close to the light source arrangement position, are close to each other and are used for totally reflecting small-angle light rays towards large-angle light rays;
two first light emitting surfaces which are arranged on two sides of the two first total reflection surfaces in a direction vertical to the central axis and used for emitting the reflected light rays from the first total reflection surfaces on the same side;
the two second total reflection surfaces are positioned on the opposite sides of the light incidence surface, are respectively arranged on the two sides of the central shaft, and are obliquely arranged outwards to be used for totally reflecting the large-angle light rays towards the small-angle light rays;
and the two second light emergent surfaces are respectively arranged on two sides of the central shaft and positioned between the second total reflection surface and the first light emergent surface on the same side, and are used for emitting the reflected light rays from the second total reflection surfaces on the same side.
Be equipped with the perpendicular the plane of illumination of center pin, for the plane of illumination, if do not have optical lens, then intermediate position illumination is strongest to slowly weaken to both sides, the utility model discloses an among the optical element through setting up optical lens, the low-angle light that will shine the intermediate position is to both sides total reflection and through first light exit face outgoing, then shines the high-angle light of both sides and passes through second light exit face outgoing to middle total reflection through the second total reflection, thereby reaches even irradiant purpose.
In order to facilitate distribution of light from the light source and to make distribution of light more easily possible for the purpose of uniform light, it is preferable that the light incident surface includes:
the small-angle light incidence surface is a condensing lens arranged in the middle;
the two large-angle light incidence surfaces are plane mirrors which are arranged on two sides of the central shaft and respectively correspond to the second total reflection surfaces.
For convenience of manufacture, it is preferable that the second total reflection surfaces are disposed outside the corresponding high-angle light incident surfaces to reflect all the high-angle light.
In order to adjust the light path direction of the small-angle light, the illumination uniformity is better, preferably, the first total reflection surface is arranged on the outer side of the small-angle light incidence surface to reflect all the converged small-angle light.
In order to adjust the direction of the light path of the light source conveniently and enable the illumination uniformity to be better, it is further preferable that the first total reflection surface and the first light emergent surface are connected to form an acute angle.
In order to adjust the direction of the light path of the light source conveniently and enable the illumination uniformity to be better, it is further preferable that the second total reflection surface and the second light emergent surface are connected to form an acute angle.
In order to adjust the light path direction of the light source conveniently and enable the illumination uniformity to be better, it is further preferable that the first light emergent surface and the second light emergent surface are connected to form an obtuse angle.
In order to achieve encapsulation and waterproofing, it is preferable that the optical element further includes a strip-shaped lamp cover disposed outside the optical lens.
In order to realize the linear light source effect, it is preferable that the optical member further includes a light diffusion film stretching the light source in a length direction of the optical lens.
In order to facilitate manufacturing while achieving a good line light source effect, it is preferable that the light diffusion film is disposed between the optical lens and the light diffusion film.
The illuminating lamp comprises a lamp holder, a printed circuit board, a light source and the optical element, wherein the light source is arranged at the position where the light source is arranged.
In order to increase the illumination range, it is preferable that the light source is provided in plurality, spaced apart along the length direction of the printed circuit board.
Under the background of energy conservation and environmental protection, the LED lamp is increasingly applied to the field of household and commercial lighting because of its high light-emitting efficiency and good light-condensing performance, and preferably, the light source adopts an LED chip.
The technical effects of the utility model:
the utility model discloses an optical element and have this optical element's light, through the low-angle light with the centre of light source to both sides total reflection, with the total reflection in the middle of the wide-angle light of both sides to obtain the illuminating effect that the irradiation range is bigger, illumination is more even simultaneously.
Drawings
Embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of the lamp of the present invention.
Fig. 2 is an explosion structure diagram of the lamp of the present invention.
Fig. 3 is a schematic view of a cross-sectional structure of the lamp of the present invention.
Fig. 4 is a schematic view of the light direction of the lamp of the present invention.
Fig. 5 is a schematic cross-sectional structure diagram of another embodiment of the present invention.
Detailed Description
The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to 4, the illumination lamp of the present embodiment includes a lamp holder, a printed circuit board, an optical element, and a light source 200. The lamp holder and the printed circuit board are not the technical points of the present invention, and are not shown in the drawings, and the structure in the prior art can be adopted, and the detailed description is not provided here.
The optical element is used for adjusting the light-emitting direction and the light-emitting angle of the light source, and comprises at least one strip-shaped optical lens 100, in the embodiment, only one optical lens 100 is arranged for simplifying the structure, and in the section perpendicular to the length direction, the optical lens 100 comprises a light source arrangement part 101, a light incidence surface 102, a first total reflection surface 103, a first light-emitting surface 104, a second total reflection surface 105 and a second light-emitting surface 106.
The light source installation part 101 is provided with a central shaft 201 for installing the light source 200, and the light source 200 can be used singly or in plurality and arranged at intervals along the length direction of the printed circuit board (also the length direction of the optical lens 100). Under the background of energy conservation and environmental protection, the LED lamp is increasingly applied to the field of household and commercial lighting because of its high light-emitting efficiency and good light-condensing performance, and the light source 200 adopts an LED chip.
The light emitted from the light source 200 is divided into a small-angle light 202 located at the central axis 201 and two sides thereof and a large-angle light 203 located at two sides of the small-angle light 202. The actual specific angle value can be set manually according to the requirement.
The light incident surface 102 is disposed facing the light source arrangement 101, and the incident light rays of the light source 200 include a small-angle light ray 202 and a large-angle light ray 203.
The two first total reflection surfaces 103 are positioned on the opposite sides of the light incidence surface 102 and are respectively arranged on the two sides of the central shaft 201, and one ends of the two first total reflection surfaces, which are close to the light source arrangement position 101, are close to each other and are used for totally reflecting the small-angle light rays 202 towards the large-angle light rays 203; the first total reflection surface 103 is disposed on the optical path of the small-angle light ray 202. The first total reflection surface 103 may be formed by splicing a plane, an arc surface, or multiple planes or arc surfaces, and in this embodiment, the first total reflection surface 103 is formed by splicing multiple segments of arc surfaces in order to achieve a better light distribution effect.
The mutual approach can be connection or disconnection, a gap is arranged between the disconnection conditions, the interval region can enable light to be emitted or not emitted, the connection condition is that the two sides of the central shaft 201 are totally reflected, and then all the small-angle light rays 202 are reflected to the large-angle light rays 203. The two first light exit surfaces 104 are arranged on both sides of the two first total reflection surfaces 103 in a direction perpendicular to the central axis 201 for emitting reflected light rays from the first total reflection surfaces 103 on the same side.
The two second total reflection surfaces 105 are positioned on the opposite sides of the light incidence surface 102 and respectively arranged on the two sides of the central axis 201, and are obliquely arranged outwards for totally reflecting the large-angle light ray 203 towards the small-angle light ray 202; the second total reflection surface 105 is disposed on the optical path of the high-angle light ray 203.
The two second light emitting surfaces 106 are respectively disposed on two sides of the central axis 201 and between the second total reflection surface 105 and the first light emitting surface 104 on the same side, and are configured to emit the reflected light from the second total reflection surface 105 on the same side.
Compared with the irradiation surface 500, if there is no optical lens 100, the illumination at the middle position is strongest and is slowly weakened towards the two sides, in the illumination lamp of the embodiment, by arranging the optical lens 100, the small-angle light 202 irradiated to the middle position is totally reflected towards the two sides and is emitted through the first light emitting surface 104, and then the large-angle light 203 irradiated to the two sides is totally reflected towards the middle through the second total reflection surface 105 and is emitted through the second light emitting surface 106, so that the purpose of uniform illumination is achieved.
Due to the size change of the optical lens 100, in combination with the distance and area influence of the irradiation surface 500, the angles of the first total reflection surface 103, the first light exit surface 104, the second total reflection surface 105 and the second light exit surface 106 relative to the irradiation surface 500 can be set as required, so as to achieve the purpose of uniform illumination.
The light incident surface 102 can primarily adjust light, which is beneficial to more effective light distribution of two subsequent groups of total reflection surfaces, and further makes illumination uniform, and the light incident surface 102 includes: a low angle ray entrance face 1021 and two high angle ray entrance faces 1022. The small-angle light ray incidence surface 1021 is a condensing lens arranged in the middle; the two large-angle light incident surfaces 1022 are plane mirrors disposed on two sides of the central axis 201 and respectively corresponding to one second total reflection surface 105. The small-angle light incident surface 1021 is used for limiting the angle range of the small-angle light, the small-angle light incident surface 1021 converges the small-angle light 202, and the first total reflection surface 103 is arranged on the outer side of the small-angle light incident surface 1021 to reflect all converged small-angle light 202.
The second total reflection surfaces 105 are disposed outside the corresponding high-angle light incident surfaces 1022 to reflect all the high-angle light 203. The first total reflection surface 103 and the first light exit surface 104 are connected to form an acute angle. The second total reflection surface 105 and the second light exit surface 106 are connected to form an acute angle. The first light exit surface 104 and the second light exit surface 106 are connected to form an obtuse angle.
The optical element further includes a stripe-shaped lamp housing 300 disposed outside the optical lens 100. The optical element further includes a light diffusion film 400 stretching the light source 200 along the length direction of the optical lens 100. The light diffusion film 400 is disposed between the optical lens 100 and the light diffusion film 400. The light source 200 is provided in plurality, and is arranged at intervals along the length direction of the printed circuit board.
The section of the strip-shaped lampshade 300 can be rectangular as shown in fig. 1-4, or can be arc-shaped as shown in fig. 5, and can be selected according to the requirements of installation and appearance structure.
The light diffusion film 400 of the present embodiment is disposed between the optical lens 100 and the strip lamp housing 300 for convenience of manufacture and installation.
The light diffusion film 400 is an elliptical light diffusion film, and can be obtained by procurement, and the model used is E-6010, of course, other models can be selected, as long as the light source 200 is stretched in the arrangement direction of the light source 200, such as E-1560, E-0160/6001, and E-0190, and in order to achieve a better stretching diffusion effect, the stretching ratio of the two directions is greater than 4 when the diffusion film is selected.
The elliptical light diffusion film of the present embodiment is a positive cylindrical microlens array, and when in use, the length direction of the positive cylindrical microlens is perpendicular to the arrangement direction of the light sources 200. The strip convex lens array in the form of the film is small in size, convenient to install, capable of being arranged in a bending mode and suitable for different lamp structure requirements.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (12)
1. An optical element comprising at least one optical lens (100) in the form of a strip, characterized in that, in a cross-section perpendicular to the longitudinal direction, said optical lens (100) comprises:
a light source installation part (101) provided with a central shaft (201) for installing a light source (200);
a light incident surface (102) facing the light source arrangement (101), incident light rays of the light source (200) comprising small-angle light rays (202) and large-angle light rays (203);
the two first total reflection surfaces (103) are positioned on the opposite sides of the light incidence surface (102) and are respectively arranged on the two sides of the central shaft (201), and one ends of the two first total reflection surfaces, which are close to the light source arrangement position (101), are close to each other and are used for totally reflecting the small-angle light rays (202) towards the large-angle light rays (203);
two first light exit surfaces (104) arranged on both sides of the two first total reflection surfaces (103) in a direction perpendicular to the central axis (201) for exiting reflected light rays from the first total reflection surfaces (103) on the same side;
two second total reflection surfaces (105) which are positioned on opposite sides of the light incidence surface (102) and are respectively arranged on two sides of the central shaft (201) and are obliquely arranged outwards for totally reflecting the large-angle light rays (203) towards the small-angle light rays (202);
and the two second light emitting surfaces (106) are respectively arranged on two sides of the central shaft (201) and positioned between the second total reflection surface (105) and the first light emitting surface (104) on the same side, and are used for emitting the reflected light rays from the second total reflection surface (105) on the same side.
2. The optical element according to claim 1, wherein the light incident surface (102) comprises: a small-angle light incident surface (1021) which is a condensing lens arranged in the middle;
and the two large-angle light incidence surfaces (1022) are plane mirrors which are arranged on two sides of the central shaft (201) and respectively correspond to the second total reflection surfaces (105).
3. The optical element according to claim 2, wherein the second total reflection surface (105) is disposed outside the corresponding large-angle light incident surface (1022) to reflect all the large-angle light (203).
4. The optical element according to claim 2, wherein the first total reflection surface (103) is disposed outside the low-angle light ray incidence surface (1021) to reflect all the converged low-angle light rays (202).
5. Optical element according to claim 1, characterized in that the first total reflection surface (103) and the first light exit surface (104) are connected to form an acute angle.
6. Optical element according to claim 1, characterized in that the second total reflection surface (105) and the second light exit surface (106) are connected to form an acute angle.
7. An optical element as claimed in claim 1, characterized in that the first light exit surface (104) and the second light exit surface (106) are connected to form an obtuse angle.
8. An optical element as claimed in any one of claims 1 to 7, characterized in that the optical element further comprises a strip-shaped lamp shade (300) arranged outside the optical lens (100).
9. The optical element of claim 8, further comprising a light diffusing film (400) stretching the light source (200) along the length of the optical lens (100).
10. The optical element according to claim 9, wherein the light diffusing film (400) is disposed between the optical lens (100) and the light diffusing film (400).
11. An illumination lamp comprising a lamp holder, a printed circuit board and a light source (200), characterized in that it further comprises an optical element according to any one of claims 1 to 10, said light source (200) being arranged at a light source location (101).
12. The illumination lamp according to claim 11, wherein the light source (200) is provided in plurality, spaced along a length direction of the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920921830.6U CN210801025U (en) | 2019-06-19 | 2019-06-19 | Optical element and illuminating lamp with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920921830.6U CN210801025U (en) | 2019-06-19 | 2019-06-19 | Optical element and illuminating lamp with same |
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| Publication Number | Publication Date |
|---|---|
| CN210801025U true CN210801025U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920921830.6U Active CN210801025U (en) | 2019-06-19 | 2019-06-19 | Optical element and illuminating lamp with same |
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| CN (1) | CN210801025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529823A (en) * | 2019-06-19 | 2019-12-03 | 赛尔富电子有限公司 | A kind of optical element and the headlamp with the optical element |
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2019
- 2019-06-19 CN CN201920921830.6U patent/CN210801025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529823A (en) * | 2019-06-19 | 2019-12-03 | 赛尔富电子有限公司 | A kind of optical element and the headlamp with the optical element |
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