CN204042753U - The even photoimaging optical system of optically focused - Google Patents
The even photoimaging optical system of optically focused Download PDFInfo
- Publication number
- CN204042753U CN204042753U CN201420441780.9U CN201420441780U CN204042753U CN 204042753 U CN204042753 U CN 204042753U CN 201420441780 U CN201420441780 U CN 201420441780U CN 204042753 U CN204042753 U CN 204042753U
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- China
- Prior art keywords
- lens
- light
- optically focused
- optical system
- photoimaging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
Abstract
The even photoimaging optical system of a kind of optically focused, comprise LED light source, the even light part of optically focused and imaging moiety, the even light part of described optically focused comprises the first lens and the second lens successively according to optical path direction; Described first lens comprise bottom surface, surface and the side between bottom surface and surface; Described bottom surface is provided with to the first lens sunken inside and for the cavity of accommodating LED lamp bead, the top of described cavity is provided with arc convex, and described housing surface forms plane of light incidence; Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face; Described surface is provided with microscopic beads face group, and described microscopic beads face group forms by by some little curved surfaces, and described microscopic beads face group forms beam projecting face.Optical system of the present utility model, first light carry out optically focused, mixing and homogenising by the even light part of optically focused to light, make last imaging hot spot out in comparatively short distance illumination and color evenly.
Description
Technical field
The utility model relates to field of LED illumination, especially has the optical system of the imaging class light fixture of optically focused and even smooth function.
Background technology
Adopt LED in color, uniform-illumination, still can not reach higher application requirement, particularly imaging class LED lamp as the LED lamp of light source.Existing imaging light fixture Optical System Design target is the hot spot that will obtain color uniform-illumination several meters of distances.The light fixture of imaging class generally comprises optically focused part and imaging moiety, determine the whether even optical system depending on optically focused part to a great extent of hot spot that light fixture is finally got, in order to realize this design object, existing light collecting part spectroscopy system often does to obtain more complicated, is generally coordinated by multiple optical lens and forms, although this kind of combined optical system also can achieve the goal, but it designs complexity, light modulation is complicated, and manufacturing cost is high, and light fixture volume is larger.
Summary of the invention
Technical problem to be solved in the utility model is to provide the even photoimaging optical system of a kind of optically focused, structure is simple, and in short distance, obtains the hot spot of color and uniform-illumination in the plane vertical with beam projecting direction while collecting the light that LED light source disperses.
For solving the problems of the technologies described above, the technical solution of the utility model is: the even photoimaging optical system of a kind of optically focused, comprise LED light source, the even light part of optically focused and imaging moiety, the even light part of described optically focused comprises the first lens and the second lens successively according to optical path direction; Described first lens comprise bottom surface, surface and the side between bottom surface and surface; Described bottom surface is provided with to the first lens sunken inside and for the cavity of accommodating LED lamp bead, the top of described cavity is provided with arc convex, and described housing surface forms plane of light incidence; Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face; Described surface is provided with microscopic beads face group, and described microscopic beads face group forms by by some little curved surfaces, and described microscopic beads face group forms beam projecting face.Optically focused of the present utility model even light part has optically focused and even smooth function, the reflecting surface of the plane of incidence that the first lens cavity is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle and changing less, the first lens exit facet hot spot that microscopic beads face group makes to get is set evenly.Optical system of the present utility model, first light carry out optically focused, mixing and homogenising by the even light part of optically focused to light, make last imaging hot spot out in comparatively short distance illumination and color evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
As improvement, described reflecting surface towards the front end in light reflection direction for reflecting the light in 5 degree of directions, described reflecting surface towards the rear end in light reflection direction for reflecting the light in-4 degree directions.
As improvement, described first lens are rotary body.
As improvement, described second lens entrance face is convex globoidal, and its radius of curvature is R45-70mm, and exit facet is plane, and the diameter of the second lens is 40-60mm.
As improvement, described second lens distance LED light source 70-80mm.
As improvement, described imaging moiety comprises with the screen board of light hole, the 3rd lens and the 4th lens successively according to optical path direction.
As improvement, the plane of incidence of described 3rd lens is plane, and exit facet is convex globoidal, and its radius of curvature is R38-52mm, and the plane of incidence of described 4th lens is plane, and exit facet is convex globoidal, and its radius of curvature is R48-80mm.
As improvement, the diameter of described light hole is 25-40mm, and the diameter of described 3rd lens is 38-60mm, and the diameter of described 4th lens is 50-65mm; Described light hole distance the second lens 10-40mm, described 3rd lens distance light hole 20-40mm, described 4th lens distance the 3rd lens 60-80mm.
As improvement, described LED light source comprises LED-baseplate and LED lamp bead, and described LED lamp bead is by single-chip or multi-chip package.
The beneficial effect that the utility model is compared with prior art brought is:
Optical system of the present utility model, first light carry out optically focused, mixing and homogenising by the even light part of optically focused to light, make last imaging hot spot out in comparatively short distance illumination and color evenly.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the first lens profile figure.
Fig. 3 is the first lens top view.
Fig. 4 is embodiment 1 first lens light line reflection figure.
Fig. 5 is embodiment 2 first lens light line reflection figure.
Fig. 6 is embodiment 3 first lens light line reflection figure.
Fig. 7 is the index path of the even light part of optically focused.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, the even photoimaging optical system of a kind of optically focused, comprises LED light source 1, the even light part of optically focused and imaging moiety.
Described LED light source 1 comprises LED-baseplate and is located at the LED lamp bead 14 in described LED-baseplate, and described LED lamp bead 14 is formed by single-chip or multi-chip package.
As shown in Figure 2, the even light part of described optically focused comprises the first lens 2 and the second lens 3 successively according to optical path direction, described first lens 2 are the even optical lens of low-angle optically focused, and described first lens 2 are rotary body, and it comprises bottom surface, surface and the side between bottom surface and surface.Described bottom surface is provided with to the first lens sunken inside and for the cavity 25 of accommodating LED lamp bead 14, the top of described cavity 25 is provided with arc convex 26, and described cavity 25 surface forms plane of light incidence 21.Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face 22.As shown in Figure 3, described surface is provided with microscopic beads face group 27, and described microscopic beads face group 27 forms by by some little curved surfaces 27, and described microscopic beads face group 27 forms beam projecting face 23.As shown in Figure 4, in the present embodiment, side as reflecting surface 22 is made up of one section of curved surface 21a, after light a is totally reflected by curved surface 21a, exit direction is 5 degree, light 2 is totally reflected rear to being-4 degree by curved surface 21a, and other light are evenly distributed between 5 degree and-4 degree by exit direction after curved face total reflection.As shown in Figure 7, the emergent ray that the present embodiment obtains after the first lens within 100mm distance hot spot uneven, in evil mind in the middle of hot spot; Emergent ray hot spot color and illumination beyond the first lens 2 afterwards 100mm is comparatively even, and beam projecting angle is between ± 6 degree.Described second lens 3 plane of incidence is convex globoidal, and its radius of curvature is R45mm, and exit facet is plane, and the diameter of the second lens 3 is 40mm.Described second lens 3 are apart from LED light source 170mm.
As shown in Figure 1, described imaging moiety comprises with the screen board 4 of light hole, the 3rd lens 5 and the 4th lens 6 successively according to optical path direction.The plane of incidence of described 3rd lens 5 is plane, and exit facet is convex globoidal, and its radius of curvature is R38mm, and the plane of incidence of described 4th lens 6 is plane, and exit facet is convex globoidal, and its radius of curvature is R48mm.The diameter of described light hole is 25mm, and the diameter of described 3rd lens 5 is 38mm, and the diameter of described 4th lens 6 is 50mm; Described light hole distance the second lens 310mm, described 3rd lens 5 are apart from light hole 20mm, and described 4th lens 6 are apart from the 3rd lens 560mm.
The reflecting surface 22 of the plane of incidence 21 that the utility model first lens cavity 25 is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle and changing less, the first lens exit facet 23 hot spot that microscopic beads face group 27 makes to get is set evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
Embodiment 2
As shown in Figure 1, the even photoimaging optical system of a kind of optically focused, comprises LED light source 1, the even light part of optically focused and imaging moiety.
Described LED light source 1 comprises LED-baseplate and is located at the LED lamp bead 14 in described LED-baseplate, and described LED lamp bead 14 is formed by single-chip or multi-chip package.
As shown in Figure 2, the even light part of described optically focused comprises the first lens 2 and the second lens 3 successively according to optical path direction.Described first lens 2 are the even optical lens of low-angle optically focused, and described first lens 2 are rotary body, and it comprises bottom surface, surface and the side between bottom surface and surface.Described bottom surface is provided with to the first lens sunken inside and for the cavity 25 of accommodating LED lamp bead 14, the top of described cavity 25 is provided with arc convex 26, and described cavity 25 surface forms plane of light incidence 21.Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face 22.As shown in Figure 3, described surface is provided with microscopic beads face group 27, and described microscopic beads face group 27 forms by by some little curved surfaces 27, and described microscopic beads face group 27 forms beam projecting face 23.As shown in Figure 5, in the present embodiment, side as reflecting surface 22 is made up of two sections of curved surfaces, after light a is totally reflected by first surface 21b, shooting angle is 5 degree, after light b is totally reflected by first surface 21b, shooting angle is-4 degree, and other light are uniformly distributed between 5 degree and-4 degree by exit direction after curved face total reflection.After the light closed on light b is totally reflected by the second curved surface 22b, beam projecting angle is 5 degree, after light c is totally reflected by the second curved surface 22b, emergent ray angle is-4 degree, and the light between light b and light c is evenly distributed between 5 degree and-4 degree by the radiation direction after the second curved surface 22b total reflection.As shown in Figure 7, all emergent raies hot spot color and illumination beyond the first lens 2 afterwards 80mm is comparatively even, and within 80mm distance, hot spot is uneven, and have evil mind in the middle of hot spot, the beam projecting angle of whole first lens 2 is between ± 5 degree.Described second lens 3 plane of incidence is convex globoidal, and its radius of curvature is R60mm, and exit facet is plane, and the diameter of the second lens 3 is 50mm.Described second lens 3 are apart from LED light source 175mm.
As shown in Figure 1, described imaging moiety comprises with the screen board 4 of light hole, the 3rd lens 5 and the 4th lens 6 successively according to optical path direction.The plane of incidence of described 3rd lens 5 is plane, and exit facet is convex globoidal, and its radius of curvature is R45mm, and the plane of incidence of described 4th lens 6 is plane, and exit facet is convex globoidal, and its radius of curvature is R60mm.The diameter of described light hole is 32mm, and the diameter of described 3rd lens 5 is 45mm, and the diameter of described 4th lens 6 is 60mm; Described light hole distance the second lens 325mm, described 3rd lens 5 are apart from light hole 30mm, and described 4th lens 6 are apart from the 3rd lens 570mm.
The reflecting surface 22 of the plane of incidence 21 that the utility model first lens cavity 25 is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle and changing less, the first lens exit facet 23 hot spot that microscopic beads face group 27 makes to get is set evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
Embodiment 3
As shown in Figure 1, the even photoimaging optical system of a kind of optically focused, comprises LED light source 1, the even light part of optically focused and imaging moiety.
Described LED light source 1 comprises LED-baseplate and is located at the LED lamp bead 14 in described LED-baseplate, and described LED lamp bead 14 is formed by single-chip or multi-chip package.
As shown in Figure 1, the even light part of described optically focused comprises the first lens 2 and the second lens 3 successively according to optical path direction.Described first lens 2 are the even optical lens of low-angle optically focused, and described first lens 2 are rotary body, and it comprises bottom surface, surface and the side between bottom surface and surface.Described bottom surface is provided with to the first lens sunken inside and for the cavity 25 of accommodating LED lamp bead 14, the top of described cavity 25 is provided with arc convex 26, and described cavity 25 surface forms plane of light incidence 21.Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face 22.As shown in Figure 3, described surface is provided with microscopic beads face group 27, and described microscopic beads face group 27 forms by by some little curved surfaces 27, and described microscopic beads face group 27 forms beam projecting face 23.As shown in Figure 6, in the present embodiment, side as reflecting surface 22 is made up of three sections of curved surfaces, after light a is totally reflected by first surface 21c, shooting angle is 5 degree, after light b is totally reflected by first surface 21c, shooting angle is-4 degree, and other light are uniformly distributed between 5 degree and-4 degree by exit direction after curved face total reflection.After the light closed on light b is totally reflected by the second curved surface 22c, beam projecting angle is 5 degree, after light c is totally reflected by the second curved surface 22c, emergent ray angle is-4 degree, and the light between light b and light c is evenly distributed between 5 degree and-4 degree by the radiation direction after the second curved surface 22c total reflection.After the light closed on light c is totally reflected by the 3rd curved surface 23c, beam projecting angle is 5 degree, after light d is totally reflected by the 3rd curved surface 23c, emergent ray angle is-4 degree, and the light between light c and light d is evenly distributed between 5 degree and-4 degree by the radiation direction after the 3rd curved surface 23c total reflection.As shown in Figure 7, all emergent raies after the first lens 2 beyond 60mm hot spot color and illumination more even, within 60mm distance, hot spot is uneven, evil mind is had in the middle of hot spot, the beam projecting angle of whole first lens 2 is between ± 5 degree, in shorter distance, about 60mm angle is less, and hot spot is more even.Described second lens 3 plane of incidence is convex globoidal, and its radius of curvature is R70mm, and exit facet is plane, and the diameter of the second lens 3 is 60mm.Described second lens 3 are apart from LED light source 180mm.
As shown in Figure 1, described imaging moiety comprises with the screen board 4 of light hole, the 3rd lens 5 and the 4th lens 6 successively according to optical path direction.The plane of incidence of described 3rd lens 5 is plane, and exit facet is convex globoidal, and its radius of curvature is R52mm, and the plane of incidence of described 4th lens 6 is plane, and exit facet is convex globoidal, and its radius of curvature is R80mm.The diameter of described light hole is 40mm, and the diameter of described 3rd lens 5 is 60mm, and the diameter of described 4th lens 6 is 65mm; Described light hole distance the second lens 340mm, described 3rd lens 5 are apart from light hole 40mm, and described 4th lens 6 are apart from the 3rd lens 580mm.
The reflecting surface 22 of the plane of incidence 21 that the utility model first lens cavity 25 is formed and surface of revolution design makes light in comparatively short distance mixing, when not changing dispersion angle or dispersion angle and changing less, the first lens exit facet 23 hot spot that microscopic beads face group 27 makes to get is set evenly.In addition, the curved surface quantity of reflecting surface gets over that multiple-effect fruit is better, and light mixing distance is near, simultaneously even light mixing.
Claims (9)
1. the even photoimaging optical system of optically focused, comprises LED light source, the even light part of optically focused and imaging moiety, it is characterized in that: the even light part of described optically focused comprises the first lens and the second lens successively according to optical path direction; Described first lens comprise bottom surface, surface and the side between bottom surface and surface; Described bottom surface is provided with to the first lens sunken inside and for the cavity of accommodating LED lamp bead, the top of described cavity is provided with arc convex, and described housing surface forms plane of light incidence; Described side is made up of the curved surface that light is totally reflected away along-4 degree to 5 degree of exit directions one or more snippets, described Surface forming light reflection face; Described surface is provided with microscopic beads face group, and described microscopic beads face group forms by by some little curved surfaces, and described microscopic beads face group forms beam projecting face.
2. the even photoimaging optical system of optically focused according to claim 1, it is characterized in that: described reflecting surface towards the front end in light reflection direction for reflecting the light in 5 degree of directions, described reflecting surface towards the rear end in light reflection direction for reflecting the light in-4 degree directions.
3. the even photoimaging optical system of optically focused according to claim 1, is characterized in that: described first lens are rotary body.
4. the even photoimaging optical system of optically focused according to claim 1, is characterized in that: described second lens entrance face is convex globoidal, and its radius of curvature is R45-70mm, and exit facet is plane, and the diameter of the second lens is 40-60mm.
5. the even photoimaging optical system of optically focused according to claim 4, is characterized in that: described second lens distance LED light source 70-80mm.
6. the even photoimaging optical system of optically focused according to claim 1, is characterized in that: described imaging moiety comprises with the screen board of light hole, the 3rd lens and the 4th lens successively according to optical path direction.
7. the even photoimaging optical system of optically focused according to claim 6, it is characterized in that: the plane of incidence of described 3rd lens is plane, exit facet is convex globoidal, its radius of curvature is R38-52mm, the plane of incidence of described 4th lens is plane, exit facet is convex globoidal, and its radius of curvature is R48-80mm.
8. the even photoimaging optical system of optically focused according to claim 7, is characterized in that: the diameter of described light hole is 25-40mm, and the diameter of described 3rd lens is 38-60mm, and the diameter of described 4th lens is 50-65mm; Described light hole distance the second lens 10-40mm, described 3rd lens distance light hole 20-40mm, described 4th lens distance the 3rd lens 60-80mm.
9. the even photoimaging optical system of optically focused according to claim 7, it is characterized in that: described LED light source comprises LED-baseplate and LED lamp bead, described LED lamp bead is by single-chip or multi-chip package.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441780.9U CN204042753U (en) | 2014-08-07 | 2014-08-07 | The even photoimaging optical system of optically focused |
| PCT/CN2014/092197 WO2016019656A1 (en) | 2014-08-07 | 2014-11-25 | Light condensation and light uniformization imaging optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441780.9U CN204042753U (en) | 2014-08-07 | 2014-08-07 | The even photoimaging optical system of optically focused |
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| Publication Number | Publication Date |
|---|---|
| CN204042753U true CN204042753U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420441780.9U Expired - Fee Related CN204042753U (en) | 2014-08-07 | 2014-08-07 | The even photoimaging optical system of optically focused |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204042753U (en) |
| WO (1) | WO2016019656A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253417A (en) * | 2018-10-16 | 2019-01-22 | 苏州欧普照明有限公司 | Optics module and light source module group |
| CN110469822A (en) * | 2018-05-10 | 2019-11-19 | 惠州雷士光电科技有限公司 | A kind of low-angle TIR lens system |
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| CN107957050A (en) * | 2016-10-18 | 2018-04-24 | 广州达森灯光股份有限公司 | A kind of stage pattern lamp optical system |
| CN107990287A (en) * | 2017-12-08 | 2018-05-04 | 广东晶科电子股份有限公司 | A kind of normal direction low-angle integral LED optical lens and lamps and lanterns |
| CN108761919B (en) * | 2018-07-13 | 2023-10-31 | 安徽芯瑞达科技股份有限公司 | High-efficiency backlight module |
| CN113803693A (en) * | 2020-06-11 | 2021-12-17 | 西安新骊电子技术有限责任公司 | Plane lens based on total reflection principle and transmission principle |
| CN113820888A (en) * | 2021-09-29 | 2021-12-21 | 联想(北京)有限公司 | Backlight assembly, manufacturing method thereof and display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202274429U (en) * | 2011-10-28 | 2012-06-13 | 深圳市鹏森光电有限公司 | LED light mixing lens |
| CN202382065U (en) * | 2011-12-28 | 2012-08-15 | 广州市雅江光电设备有限公司 | Light-integration and imaging system by use of multiple LED (light-emitting diode) lamp beads |
| CN202955630U (en) * | 2012-11-20 | 2013-05-29 | 东莞钜升塑胶电子制品有限公司 | Light-emitting diode (LED) condensing lens |
| CN103542370A (en) * | 2013-10-29 | 2014-01-29 | 江门吉华光电精密有限公司 | Combined lens capable of mixing light evenly and adjusting light intensity angles and based on multiple colors of red green blue and white (RGBW) |
-
2014
- 2014-08-07 CN CN201420441780.9U patent/CN204042753U/en not_active Expired - Fee Related
- 2014-11-25 WO PCT/CN2014/092197 patent/WO2016019656A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469822A (en) * | 2018-05-10 | 2019-11-19 | 惠州雷士光电科技有限公司 | A kind of low-angle TIR lens system |
| CN110469822B (en) * | 2018-05-10 | 2024-05-03 | 惠州雷士光电科技有限公司 | Small-angle TIR lens system |
| CN109253417A (en) * | 2018-10-16 | 2019-01-22 | 苏州欧普照明有限公司 | Optics module and light source module group |
| CN109253417B (en) * | 2018-10-16 | 2023-12-29 | 苏州欧普照明有限公司 | Optical module and light source module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016019656A1 (en) | 2016-02-11 |
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