CN204215104U - Even photoimaging optical system - Google Patents
Even photoimaging optical system Download PDFInfo
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- CN204215104U CN204215104U CN201420441811.0U CN201420441811U CN204215104U CN 204215104 U CN204215104 U CN 204215104U CN 201420441811 U CN201420441811 U CN 201420441811U CN 204215104 U CN204215104 U CN 204215104U
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- photoimaging
- even light
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Abstract
A kind of even photoimaging optical system, comprise light source, the even light part of optically focused and imaging moiety, described optically focused even light part comprises beam condensing unit, even light diffusion mirror group, the first condenser and second condenser lens successively according to optical path direction, described even light diffusion mirror group spreads mirror by two even light and forms, described even light diffusion mirror wherein one side is plane, another side is provided with lenticule group, the lenticule one_to_one corresponding on two even light diffusion mirrors.In the utility model optical system, the light that beam condensing unit collection as much as possible LED sends, and the light of more than 60% is controlled within the angle of 6-15 degree; Even light is adopted to spread the uneven of the uneven and light intensity of the color that mirror group homogenising beam condensing unit optically focused causes; The hot spot imaging of all even for color uniform intensity to the position of imaging system light hole diameter matches, is obtained the hot spot of all even uniform intensity of color by the first condenser and second condenser lens.
Description
Technical field
The utility model relates to field of LED illumination, especially with the optical system of even light and imaging.
Background technology
Existing LED imaging optical system generally comprises optically focused part and imaging moiety, and its optically focused part is mainly used for light to gather, to improve light efficiency and to be convenient to imaging.Because imaging optical system optically focused part lacks dodging device, the hot spot uneven color therefore got.A kind of plurality of LEDs lamp pearl being 202432431 as China Patent Publication No. combines light into picture system, comprise and close light part and imaging moiety, close the LED lamp bead that light part comprises more than two, every LED lamp pearl front correspondence is provided with beam condensing unit LED lamp bead luminous flux is gathered in 5 ~ 15 degree, all beam condensing unit composition beam condensing unit groups, beam condensing unit group front is provided with one and closes optical lens.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of even photoimaging optical system, the hot spot color that imaging is got and uniform-illumination.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of even photoimaging optical system, comprise light source, the even light part of optically focused and imaging moiety, described optically focused even light part comprises beam condensing unit, even light diffusion mirror group, the first condenser and second condenser lens successively according to optical path direction, described even light diffusion mirror group spreads mirror by two even light and forms, described even light diffusion mirror wherein one side is plane, another side is provided with lenticule group, the lenticule one_to_one corresponding on two even light diffusion mirrors.In the utility model optical system, the light that beam condensing unit collection as much as possible LED sends, and the light of more than 60% is controlled within the angle of 6-15 degree; Even light is adopted to spread the uneven of the uneven and light intensity of the color that mirror group homogenising beam condensing unit optically focused causes; Even light diffusion mirror group spreads mirror by 2 identical even light and forms, light focuses on the position of second even light diffusion mirror after first even light diffusion mirror, each lenticule of second even light diffusion mirror, by the light amplification imaging of micro lens corresponding on first even light diffusion mirror, just obtains the hot spot of all even uniform intensity of color after the picture that all lenticules amplify overlaps; The hot spot imaging of all even for color uniform intensity to the position of imaging system light hole diameter matches, is obtained the hot spot of all even uniform intensity of color by the first condenser and second condenser lens.
As improvement, described LED light source comprises LED-baseplate and is located at the LED lamp bead in described LED-baseplate.
As improvement, described beam condensing unit is the light of more than 60% is controlled collector lens in 6-15 degree or collector lens group.
As improvement, the lenticule group on two even light diffusion mirrors is towards identical, contrary or relative.
As improvement, the distance between even light diffusion mirror group and beam condensing unit is 2-10mm.
As improvement, described first condenser and second condenser lens are plano lens.
As improvement, described imaging moiety comprises with the screen board of light hole, the first lens and the second lens successively according to optical path direction.Be convergent type by the light of light hole, the hot spot color uniform-illumination at light hole place.
As improvement, the plane of incidence of described first lens is concave surface, and its radius-of-curvature is R106-140mm, and the exit facet of the first lens is convex surface, and its radius-of-curvature is R90-106mm; The plane of incidence of the second lens is plane, and exit facet is convex surface, and its radius-of-curvature is R120-150mm.
As improvement, the distance between described screen board and LED light source is 120-170mm, and the distance between the first lens and screen board is 30-40mm, and the distance between the second lens and screen board is 210-250mm.The diameter of light hole is 50-100mm.
The beneficial effect that the utility model is compared with prior art brought is:
1, in the utility model optical system, the light that beam condensing unit collection as much as possible LED sends, and the light of more than 60% is controlled within the angle of 6-15 degree; Even light is adopted to spread the uneven of the uneven and light intensity of the color that mirror group homogenising beam condensing unit optically focused causes;
2, even light is adopted to spread the uneven of the uneven and light intensity of the color that mirror group homogenising beam condensing unit optically focused causes; Even light diffusion mirror group spreads mirror by 2 identical even light and forms, light focuses on the position of second even light diffusion mirror after first even light diffusion mirror, each lenticule of second even light diffusion mirror, by the light amplification imaging of micro lens corresponding on first even light diffusion mirror, just obtains the hot spot of all even uniform intensity of color after the picture that all lenticules amplify overlaps;
3, the first condenser and second condenser lens are by the hot spot imaging of all even for color uniform intensity to the position of imaging system light hole diameter matches, obtain the hot spot of all even uniform intensity of color.
Accompanying drawing explanation
Fig. 1 is the utility model index path.
Fig. 2 is beam condensing unit schematic diagram I.
Fig. 3 is beam condensing unit schematic diagram II.
Fig. 4 is even light diffusion mirror group schematic diagram I.
Fig. 5 is even light diffusion mirror group schematic diagram II.
Fig. 6 is even light diffusion mirror group schematic diagram III.
Fig. 7 is the index path of the even light part of optically focused.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of even photoimaging optical system, comprises light source, the even light part of optically focused and imaging moiety.
As shown in Figure 1, described optically focused even light part comprises LED light source 1, beam condensing unit 2, even light diffusion mirror group 3, first condenser 4 and second condenser lens 5 successively by optical path direction.The LED lamp bead 12 that described LED light source 1 comprises LED-baseplate 11 and is located in described LED-baseplate 11, LED lamp bead 12 is single-chip or multi-chip encapsulated LED.As shown in Figure 2,3, described beam condensing unit 2 is the light of more than 60% is controlled collector lens 21 in 6-15 degree or collector lens group; Described collector lens light end is provided with the cavity for accommodating LED lamp bead, and described housing surface forms the plane of incidence, and the exit facet of collector lens is pearl face or frosting; Described collector lens group can be the lens 22 of two or more on same optical axis, is realized the function of beam condensing unit by the composition of these lens 22.As shown in Figs. 4-6, described even light diffusion mirror group 3 spreads mirror 31 by two even light and forms, described even light diffusion mirror 31 wherein one side be plane, and another side is provided with lenticule group 32, lenticule group 32 by some be that the lenticule 321 of net distribution or array distribution forms; Lenticule group 32 on two even light diffusion mirrors 31 is towards identical, contrary or relative, as long as lenticule 321 one_to_one corresponding on two even light diffusion mirrors 31; Distance between even light diffusion mirror group 3 and beam condensing unit 2 is 2-10mm.Described first condenser 4 and second condenser lens 5 are plano lens, and the hot spot imaging of all even for color uniform intensity to position near as far as possible, is closely being obtained the hot spot of all even uniform intensity of color by collector lens.Light hole and imaging device are set in the reflection of condenser beam projecting, plane of illumination can be projected to by image formation by rays.
As shown in Figure 1, described imaging moiety comprises screen board 6, first lens 7 with light hole and the second lens 8 successively according to optical path direction.The plane of incidence of described first lens 7 is concave surface, and its radius-of-curvature is R106mm, and the exit facet of the first lens 7 is convex surface, and its radius-of-curvature is R90mm; The plane of incidence of the second lens 8 is plane, and exit facet is convex surface, and its radius-of-curvature is R120mm.Distance D1 between described screen board 6 and LED light source is 120mm, and the distance D2 between the first lens 7 and screen board 6 is 30mm, and the distance D3 between the second lens 8 and screen board 6 is 210mm.The diameter D4 of light hole is 50mm, is convergent type by the light of light hole, the hot spot color uniform-illumination at light hole place.
As shown in Figure 7, in the utility model optical system, the light that beam condensing unit collection as much as possible LED sends, and the light of more than 60% is controlled within the angle of 6-15 degree; Even light is adopted to spread the uneven of the uneven and light intensity of the color that mirror group homogenising beam condensing unit optically focused causes; Even light diffusion mirror group spreads mirror by 2 identical even light and forms, light focuses on the position of second even light diffusion mirror after first even light diffusion mirror, each lenticule of second even light diffusion mirror, by the light amplification imaging of micro lens corresponding on first even light diffusion mirror, just obtains the hot spot of all even uniform intensity of color after the picture that all lenticules amplify overlaps; The hot spot imaging of all even for color uniform intensity to the position of imaging system light hole diameter matches, is obtained the hot spot of all even uniform intensity of color by condenser.
Embodiment 2
That as shown in Figure 1, described imaging moiety comprises screen board 6, first lens 7 with light hole and the second lens 8 successively according to optical path direction with embodiment 1 difference.The plane of incidence of described first lens 7 is concave surface, and its radius-of-curvature is R125mm, and the exit facet of the first lens 7 is convex surface, and its radius-of-curvature is R100mm; The plane of incidence of the second lens 8 is plane, and exit facet is convex surface, and its radius-of-curvature is R135mm.Distance D1 between described screen board 6 and LED light source is 150mm, and the distance D2 between the first lens 7 and screen board 6 is 35mm, and the distance D3 between the second lens 8 and screen board 6 is 230mm.The diameter D4 of light hole is 80mm, is convergent type by the light of light hole, the hot spot color uniform-illumination at light hole place.The effect that the present embodiment optical system produces is identical with embodiment 1.
Embodiment 3
That as shown in Figure 1, described imaging moiety comprises screen board 6, first lens 7 with light hole and the second lens 8 successively according to optical path direction with embodiment 1 difference.The plane of incidence of described first lens 7 is concave surface, and its radius-of-curvature is R140mm, and the exit facet of the first lens 7 is convex surface, and its radius-of-curvature is R106mm; The plane of incidence of the second lens 8 is plane, and exit facet is convex surface, and its radius-of-curvature is R150mm.Distance D1 between described screen board 6 and LED light source is 170mm, and the distance D2 between the first lens 7 and screen board 6 is 40mm, and the distance D3 between the second lens 8 and screen board 6 is 250mm.The diameter D4 of light hole is 100mm, is convergent type by the light of light hole, the hot spot color uniform-illumination at light hole place.The effect that the present embodiment optical system produces is identical with embodiment 1.
Claims (9)
1. an even photoimaging optical system, comprise light source, the even light part of optically focused and imaging moiety, it is characterized in that: described optically focused even light part comprises beam condensing unit, even light diffusion mirror group, the first condenser and second condenser lens successively according to optical path direction, described even light diffusion mirror group spreads mirror by two even light and forms, described even light diffusion mirror wherein one side is plane, another side is provided with lenticule group, the lenticule one_to_one corresponding on two even light diffusion mirrors.
2. the even photoimaging optical system of one according to claim 1, is characterized in that: described light source comprises LED-baseplate and is located at the LED lamp bead in described LED-baseplate.
3. the even photoimaging optical system of one according to claim 2, is characterized in that: described beam condensing unit is the light of more than 60% is controlled collector lens in 6-15 degree or collector lens group.
4. the even photoimaging optical system of one according to claim 1, is characterized in that: the lenticule group on two even light diffusion mirrors is towards identical, contrary or relative.
5. the even photoimaging optical system of one according to claim 1, is characterized in that: the distance between even light diffusion mirror group and beam condensing unit is 2-10mm.
6. the even photoimaging optical system of one according to claim 1, is characterized in that: described first condenser and second condenser lens are plano lens.
7. the even photoimaging optical system of one according to claim 1, is characterized in that: described imaging moiety comprises with the screen board of light hole, the first lens and the second lens successively according to optical path direction.
8. the even photoimaging optical system of one according to claim 7, is characterized in that: the plane of incidence of described first lens is concave surface, and its radius-of-curvature is R106-140mm, and the exit facet of the first lens is convex surface, and its radius-of-curvature is R90-106mm; The plane of incidence of the second lens is plane, and exit facet is convex surface, and its radius-of-curvature is R120-150mm.
9. the even photoimaging optical system of one according to claim 7, it is characterized in that: the distance between described screen board and LED light source is 120-170mm, distance between first lens and screen board is 30-40mm, distance between second lens and screen board is 210-250mm, and the diameter of light hole is 50-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441811.0U CN204215104U (en) | 2014-08-07 | 2014-08-07 | Even photoimaging optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441811.0U CN204215104U (en) | 2014-08-07 | 2014-08-07 | Even photoimaging optical system |
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| CN204215104U true CN204215104U (en) | 2015-03-18 |
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| CN201420441811.0U Expired - Fee Related CN204215104U (en) | 2014-08-07 | 2014-08-07 | Even photoimaging optical system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615135A (en) * | 2015-06-05 | 2018-01-19 | 株式会社电装 | head-up display device |
| CN114859542A (en) * | 2021-11-05 | 2022-08-05 | 郑州思昆生物工程有限公司 | Illumination system and microscope equipment |
| CN114937401A (en) * | 2022-05-06 | 2022-08-23 | 北京航空航天大学 | Hydrodynamics experiment system and method for eliminating liquid jet total reflection area |
| CN117434734A (en) * | 2023-11-01 | 2024-01-23 | 深圳市瑞恒源光电子科技有限公司 | Optical system capable of generating high-brightness high-uniformity stable output |
-
2014
- 2014-08-07 CN CN201420441811.0U patent/CN204215104U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107615135A (en) * | 2015-06-05 | 2018-01-19 | 株式会社电装 | head-up display device |
| US10606074B2 (en) | 2015-06-05 | 2020-03-31 | Denso Corporation | Head-up display apparatus |
| CN114859542A (en) * | 2021-11-05 | 2022-08-05 | 郑州思昆生物工程有限公司 | Illumination system and microscope equipment |
| CN114937401A (en) * | 2022-05-06 | 2022-08-23 | 北京航空航天大学 | Hydrodynamics experiment system and method for eliminating liquid jet total reflection area |
| CN114937401B (en) * | 2022-05-06 | 2023-03-14 | 北京航空航天大学 | Hydrodynamics experiment system and method for eliminating liquid jet total reflection area |
| CN117434734A (en) * | 2023-11-01 | 2024-01-23 | 深圳市瑞恒源光电子科技有限公司 | Optical system capable of generating high-brightness high-uniformity stable output |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20200807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |