CN201293911Y - Miniature projection non-imaging illumination light machine - Google Patents
Miniature projection non-imaging illumination light machine Download PDFInfo
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- CN201293911Y CN201293911Y CNU2008201433217U CN200820143321U CN201293911Y CN 201293911 Y CN201293911 Y CN 201293911Y CN U2008201433217 U CNU2008201433217 U CN U2008201433217U CN 200820143321 U CN200820143321 U CN 200820143321U CN 201293911 Y CN201293911 Y CN 201293911Y
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Abstract
The utility model discloses a microscopic projecting non-imaging illuminating light engine, which is composed of a white light LED light source 15, a non-imaging dodging device 16 and a P-polarized light-S-polarized light splitting device 17. The non-imaging dodging device 16 is disposed between the white light LED light source 15 and the P-polarized light-S-polarized light splitting device 17 and is provided with a double-row fly-eye lens device 5, a first lens 6 and a second lens 7 from left to right, wherein the first lens 6 and the second lens 7 form a dual-lens group. The microscopic projecting non-imaging illuminating light engine can realize high brightness and generate uniform light field, saves large-scale complicated high-pressure mercury lamps and scattering devices thereof, increases the brightness of a microscopic projection system and the uniformity of the light field, significantly improves the quality of projecting images, and has a compacter structure compacter compared with an imaging optical collector.
Description
Technical field
The utility model relates to the non-imaging illumination of a kind of projection display system, particularly micro projection mechanical-optical setup.
Background technology
Projection display system is widely used in movie, the manuscript demonstration, occasion is play in chart displayings etc., obtain the large screen display effect by the Projection Display mode, can overcome adopt direct display mode to bring bulky, a series of problems such as weight and cost increase, and along with microelectronics, the development of optics and other attached technology and strong technical support, with the further microminiaturized development trend that has become projection products of projector, at present existing Chinese patent proposes to install the various schemes of minitype projection machine on mobile digital or communication facilities, be respectively such as application number: 200610011431.3,200580006886.X, 200410031715.X, 200710073725.3 and the Chinese patent of 200580027868.X, the technical scheme that realizes projecting function on mobile communication equipment is all disclosed, but what have in these technical schemes only describes the notion that mobile phone combines with projector, have plenty of connected mode or the circuit control mode described between mobile device and the projector, the structure that has is complicated, and the shortage flesh and blood that has is difficult to realize.In a word, although above-mentioned Chinese patent has provided the simple micro projector of structure, promptly mainly form by light source, focus lens group, reflective miniscope and projection lens, can obtain the little lightweight projection arrangement of compact conformation volume, but have serious display defect: display brightness deficiency, display image lack of homogeneity are so that the bright four jiaos of dark phenomenons of central authorities occur, and these problems mainly are by due to the defective of the illuminator brightness irregularities of micro projector.
Miniature projection display system mainly is made up of illumination ray machine and projection lens two parts, and the ray machine that wherein throws light on has played decisive role as the important component part of miniature projection display system for projected image brightness and homogeneity.The illumination ray machine of this utility model proposition is theoretical foundation with the nonimaging optics, from the angle design optical-mechanical system of NE BY ENERGY TRANSFER.
Nonimaging optics is to grow up on the basis of the condenser of research sun power, the purpose of non-imaging optical system is the energy of somewhere radiation of light source is transferred to other a certain specific region, so any illumination of any in the specific region, all be that the luminous energy that sent by many points on the light source is redistributed the back stack by non-imaging optical system and formed, its concern be the efficient of system for the luminous energy transmission.With the optical collector of nonimaging optics design, not only can the gathered light emittance, make light intensity produce gain, thereby light-source brightness and homogeneity are provided, and have more compact structure with respect to the imaging optical collector, be very suitable for micro projector.
Summary of the invention
The purpose of this utility model is to overcome the display brightness deficiency, display image lack of homogeneity of prior art so that the bright four jiaos of dark phenomenon defectives of central authorities occur, a kind of non-imaging illumination of micro projection mechanical-optical setup that can produce high brightness, uniform light field is provided, thereby avoid using large complicated high-pressure sodium lamp and scattering device thereof, can improve the brightness and the light field homogeneity of micro projection system, obviously improve projected image quality, and have more compact structure with respect to the imaging optical collector.
The technical scheme that the utility model adopted is:
The non-imaging illumination of micro projection ray machine, constitute by the light source, dodging device and the light-dividing device that are positioned on the same center line and be fixed on the metal lens barrel 3, it is characterized in that, described light source is a white LED light source 15, described dodging device is non-imaging dodging device 16, described light-dividing device is P light-S light light-dividing device 17, and non-imaging dodging device 16 is between white LED light source 15 and P light-S light light-dividing device 17; White LED light source 15 is arranged on the end of metal lens barrel 3, the end sides of metal lens barrel 3 is provided with the white light LEDs metal lamp holder of being fixed by metallic screw 14 1, metal lamp holder 1 is provided with the white light LED array 2 and the composite parabolic optical collector 4 of the integrated LED of advancing white light, and the two ends of composite parabolic optical collector 4 are respectively arranged with optical collector bottom 18 and optical collector opening 19; Non-imaging dodging device 16 is provided with the 1st lens 6 of double fly's-eye lens device 5, doublet and the 2nd lens 7 of doublet from left to right; P light-S light light-dividing device 17 is provided with P light from left to right and opens inclined to one side device 8, miter angle prism 9, lens barrel irradiation hole 12 and reflective miniscope 13, the prism inclined-plane of described miter angle prism 9 is provided with P light-S light spectro-film 10, and the top of P light-S light light-dividing device 17 is provided with lens barrel projection hole 11.
Described white light LED array 2 is integrated at least advances 1 LED white light.
Described white light LEDs metal lamp holder 1 is fixing by 2 pieces of metallic screws 14 at least.
The two sides, the left and right sides of described double fly's-eye lens device 5 is respectively arranged with the 1st row's lens arra 21, the 2nd row's lens arra 22, and the 1st row's lens arra 21 and the 2nd row's lens arra 22 are parallel to each other, the 1st row's lens arra 21 is made up of the lens unit 26 of a plurality of the 1st row's lens arras and the lens unit 27 of the 2nd row's lens arra respectively with the 2nd row's lens arra 22, and focal length and the 2nd of the lens unit 26 of each the 1st row lens arra of the 1st row's lens arra 21 is arranged the corresponding the 2nd in the lens arra 22 and arranged the focal length coincidence of lens unit 27 of lens arra in double focal length of lens coincide point 20.
The lens unit 26 of described the 1st row's lens arra enters the refracted ray 25 of formation by incident ray 23, through double focal length of lens coincide point 20, and forms emergent raies 24 by the lens unit 27 of described the 2nd row's lens arra.
6. the non-imaging illumination of micro projection according to claim 1 ray machine, it is characterized in that, the 2nd lens 7 materials of the 1st lens 6 of described doublet and doublet are identical, shape is identical, focal length is identical, and the 2nd lens 7 distance of the 1st lens 6 of doublet and doublet are two times of focal lengths of the 1st lens 6 of doublet.
The bottom of the horizontal level of described miter angle prism 9 is provided with prism bottom surface 32, and the upright position is provided with prism vertical plane 30 and prism side 31, horizontal by 45 the degree angles incline position be provided with prism inclined-plane 33.
Described P light-S light spectro-film 10 is close on the described prism inclined-plane 33.
Described P light opens inclined to one side device 8 and is close on the prism vertical plane 30, and faces the 2nd lens 7 of doublet.
Described reflective miniscope 13 is close on the lens barrel irradiation hole 12, and reflective miniscope 13 is reflected into the S light that possesses image information to even, the high brightness P light that lens barrel irradiation hole 12 irradiates, and this S light will be projected the non-imaging illumination of micro projection ray machine by lens barrel projection hole 11 by P light-S light spectro-film 10 refractions.
The beneficial effects of the utility model are, a kind of non-imaging illumination of micro projection ray machine that can produce high brightness, uniform light field is provided, large complicated high-pressure sodium lamp and scattering device thereof have been avoided using, the brightness and the light field homogeneity of micro projection system have been improved, obviously improved projected image quality, and had more compact structure with respect to the imaging optical collector.
Description of drawings
Fig. 1 is a miniature non-imaging ray machine structural section structural representation of the present utility model;
Fig. 2 is a double fly's-eye lens device cross section structure synoptic diagram described in the utility model;
Fig. 3 is the perspective view of miter angle prism described in the utility model.
Reference numeral is as follows among the figure:
1: white light LEDs metal lamp holder 2: white light LED array
3: metal lens barrel 4: the composite parabolic optical collector
5: double fly's-eye lens device 6: the 1st lens of doublet
7: the 2nd lens 8:P light of doublet opens inclined to one side device
9:45 degree angle prism 10:P light-S light spectro-film
11: lens barrel projection hole 12: lens barrel irradiation hole
13: reflective miniscope 14: metallic screw
15: white LED light source 16: non-imaging dodging device
17:P light-S light light-dividing device 18: optical collector bottom
19: optical collector opening 20: double focal length of lens coincide point
22: the 2 rows of 21: the 1 row's lens arras lens arra
23: incident ray 24: emergent ray
25: the lens unit of 26: the 1 rows of refracted ray lens arra
The lens unit 30 of 27: the 2 row's lens arras: prism vertical plane
31: prism side 32: the prism bottom surface
33: the prism inclined-plane
Embodiment
Below in conjunction with accompanying drawing miniature non-imaging mechanical-optical setup of the present utility model is made a detailed description.
The preparation process of the non-imaging illumination of the utility model micro projection ray machine adopts conventional production equipment and production technology.
This structure is made of white light LEDs (Light-Emitting Diode, light emitting diode) array, composite parabolic optical collector, double fly's-eye lens device, doublet, P light-S light light-dividing device and reflective miniscope thereof.
As shown in Figure 1, the non-imaging mechanical-optical setup of micro projection includes: be positioned on the same center line and be fixed on the white LED light source 15 on the metal lens barrel 3, non-imaging dodging device 16, P light-S light light-dividing device 17, and non-imaging dodging device 16 is between white LED light source 15 and P light-S light light-dividing device 17.
Described white LED light source 15 comprises integrated at least white light LED array 2, white light LEDs metal lamp holder 1, composite parabolic optical collector 4 and the metallic screw 14 that advances 1 LED white light; Wherein be installed in the bottom that white light LED array 2 on the white light LEDs metal lamp holder 1 is arranged on described composite parabolic optical collector 4, and white light LEDs metal lamp holder 1 is fixed on the metal lens barrel 3 by at least 2 pieces of metallic screws 14; White light LEDs metal lamp holder and described metal lens barrel are directly fastening by described metallic screw, the heat that produces when helping rapid diffusion LED work, can keep the good luminous duty of white light LED array, need not to use special heat abstractor again, thereby reduce the volume of micro projection, and reduce its weight.
As shown in Figure 2, the two sides, the left and right sides of described double fly's-eye lens device 5 is respectively arranged with the 1st row's lens arra 21, the 2nd row's lens arra 22, and the 1st row's lens arra 21 is parallel to each other with described the 2nd row's lens arra 22, the 1st row's lens arra 21 and the 2nd row's lens arra 22 are made up of the lens unit 26 of a plurality of the 1st row's lens arras and the lens unit 27 of the 2nd row's lens arra respectively, and the focal length that the focal length and the described the 2nd of the lens unit 26 of each the 1st row lens arra of the 1st row's lens arra 21 is arranged the lens unit 27 of corresponding described the 2nd row's lens arra in the lens arra 22 overlaps in described double focal length of lens coincide point 20, promptly, incident ray 23 enters the double focal length of lens coincide point 20 of refracted ray 25 processes of lens unit 26 formation of the 1st row's lens arra, and forms described emergent ray 24 by the lens unit 27 of the 2nd row's lens arra.
The 2nd lens 7 materials of the 1st lens 6 of described doublet and described doublet are identical, shape is identical, focal length is identical, and the 2nd lens distance of the 1st lens 6 of doublet and described doublet is two times of focal lengths of the 1st lens 6 of described doublet.
Described P light-S light light-dividing device 17 comprises that P light opens inclined to one side device 8, miter angle prism 9, P light-S light spectro-film 10 and reflective miniscope 13.
As shown in Figure 3, miter angle prism 9 have a prism bottom surface that is parallel to surface level 32, prism vertical plane vertical 30 with described prism bottom surface, two be parallel to each other and simultaneously perpendicular to the prism side 31 of described prism bottom surface 30 and described prism vertical plane 30, a prism inclined-plane 33 horizontal by 45 degree angles.
P light opens inclined to one side device 8 and is close on the prism vertical plane 30, and faces the 2nd lens 7 of doublet.
P light-S light spectro-film 10 is close on the prism inclined-plane 33.
Claims (10)
1. the non-imaging illumination of micro projection ray machine, constitute by the light source, dodging device and the light-dividing device that are positioned on the same center line and be fixed on the metal lens barrel (3), it is characterized in that, described light source is white LED light source (15), described dodging device is a non-imaging dodging device (16), described light-dividing device is P light-S light light-dividing device (17), and non-imaging dodging device (16) is positioned between white LED light source (15) and the P light-S light light-dividing device (17); White LED light source (15) is arranged on the end of metal lens barrel (3), the end sides of metal lens barrel (3) is provided with by the fixing white light LEDs metal lamp holder (1) of metallic screw (14), metal lamp holder (1) is provided with the white light LED array (2) and the composite parabolic optical collector (4) of the integrated LED of advancing white light, and the two ends of composite parabolic optical collector (4) are respectively arranged with optical collector bottom (18) and optical collector opening (19); Non-imaging dodging device (16) is provided with the 1st lens (6) of double fly's-eye lens device (5), doublet and the 2nd lens (7) of doublet from left to right; P light-S light light-dividing device (17) is provided with P light from left to right and opens inclined to one side device (8), miter angle prism (9), lens barrel irradiation hole (12) and reflective miniscope (13), the prism inclined-plane of described miter angle prism (9) is provided with P light-S light spectro-film (10), and the top of P light-S light light-dividing device (17) is provided with lens barrel projection hole (11).
2. the non-imaging of micro projection according to claim 1 illumination ray machine is characterized in that, described white light LED array (2) is integrated at least advances 1 LED white light.
3. the non-imaging illumination of micro projection according to claim 1 ray machine is characterized in that described white light LEDs metal lamp holder (1) is fixing by 2 pieces of metallic screws (14) at least.
4. the non-imaging illumination of micro projection according to claim 1 ray machine, it is characterized in that, the two sides, the left and right sides of described double fly's-eye lens device (5) is respectively arranged with the 1st row's lens arra (21), the 2nd row's lens arra (22), and the 1st row's lens arra (21) is parallel to each other with the 2nd row's lens arra (22), the 1st row's lens arra (21) is made up of the lens unit (26) of a plurality of the 1st row's lens arras and the lens unit (27) of the 2nd row's lens arra respectively with the 2nd row's lens arra (22), and focal length and the 2nd of the lens unit (26) of each the 1st row lens arra of the 1st row's lens arra (21) is arranged the corresponding the 2nd in the lens arra (22) and arranged the focal length coincidence of lens unit (27) of lens arra in double focal length of lens coincide point (20).
5. the non-imaging illumination of micro projection according to claim 4 ray machine, it is characterized in that, the lens unit (26) of described the 1st row's lens arra enters the refracted ray (25) of formation by incident ray (23), pass through double focal length of lens coincide point (20), and form emergent ray (24) by the lens unit (27) of described the 2nd row's lens arra.
6. the non-imaging illumination of micro projection according to claim 1 ray machine, it is characterized in that, the 2nd lens (7) material of the 1st lens (6) of described doublet and doublet is identical, shape is identical, focal length is identical, and the 2nd lens (7) distance of the 1st lens (6) of doublet and doublet is two times of focal lengths of the 1st lens (6) of doublet.
7. the non-imaging illumination of micro projection according to claim 1 ray machine, it is characterized in that, the bottom of the horizontal level of described miter angle prism (9) is provided with prism bottom surface (32), the upright position is provided with prism vertical plane (30) and prism side (31), horizontal by 45 the degree angles incline position be provided with prism inclined-plane (33).
8. the non-imaging of micro projection illumination ray machine according to claim 1 or 5 is characterized in that described P light-S light spectro-film (10) is close on the described prism inclined-plane (33).
9. the non-imaging of micro projection illumination ray machine according to claim 1 or 5 is characterized in that described P light opens inclined to one side device (8) and is close on the prism vertical plane (30), and in the face of the 2nd lens (7) of doublet.
10. the non-imaging illumination of micro projection according to claim 1 ray machine, it is characterized in that, described reflective miniscope (13) is close on the lens barrel irradiation hole (12), and reflective miniscope (13) is reflected into the S light that possesses image information to even, the high brightness P light that lens barrel irradiation hole (12) irradiates, and this S light will be projected the non-imaging illumination of micro projection ray machine by lens barrel projection hole (11) by P light-S light spectro-film (10) refraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201433217U CN201293911Y (en) | 2008-11-20 | 2008-11-20 | Miniature projection non-imaging illumination light machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201433217U CN201293911Y (en) | 2008-11-20 | 2008-11-20 | Miniature projection non-imaging illumination light machine |
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| CN201293911Y true CN201293911Y (en) | 2009-08-19 |
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| CNU2008201433217U Expired - Fee Related CN201293911Y (en) | 2008-11-20 | 2008-11-20 | Miniature projection non-imaging illumination light machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| CN103292217A (en) * | 2013-05-23 | 2013-09-11 | 东莞市晶谷照明科技有限公司 | Multi-light-source imaging system of projecting lamp |
| CN104820290A (en) * | 2014-12-19 | 2015-08-05 | 深圳市科曼医疗设备有限公司 | Dodging device |
| CN108443744A (en) * | 2017-11-27 | 2018-08-24 | 长春理工大学 | A kind of high irradiation LED solar simulator optical systems |
| CN108799851A (en) * | 2018-05-10 | 2018-11-13 | 北京大学东莞光电研究院 | A kind of light-emitting device and light source imaging system |
| CN110221511A (en) * | 2019-05-15 | 2019-09-10 | 深圳市瞐客科技有限公司 | A kind of new and effective micro- projection optics framework |
| CN112731751A (en) * | 2020-12-31 | 2021-04-30 | 广景视睿科技（深圳）有限公司 | Projection equipment |
-
2008
- 2008-11-20 CN CNU2008201433217U patent/CN201293911Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| CN102853374B (en) * | 2012-08-24 | 2015-03-18 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| CN103292217A (en) * | 2013-05-23 | 2013-09-11 | 东莞市晶谷照明科技有限公司 | Multi-light-source imaging system of projecting lamp |
| CN104820290A (en) * | 2014-12-19 | 2015-08-05 | 深圳市科曼医疗设备有限公司 | Dodging device |
| CN104820290B (en) * | 2014-12-19 | 2017-05-17 | 深圳市科曼医疗设备有限公司 | Dodging device |
| CN108443744A (en) * | 2017-11-27 | 2018-08-24 | 长春理工大学 | A kind of high irradiation LED solar simulator optical systems |
| CN108799851A (en) * | 2018-05-10 | 2018-11-13 | 北京大学东莞光电研究院 | A kind of light-emitting device and light source imaging system |
| CN110221511A (en) * | 2019-05-15 | 2019-09-10 | 深圳市瞐客科技有限公司 | A kind of new and effective micro- projection optics framework |
| CN112731751A (en) * | 2020-12-31 | 2021-04-30 | 广景视睿科技（深圳）有限公司 | Projection equipment |
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Owner name: SHENZHEN CHANGJIANG LIWEI CO., LTD. Free format text: FORMER OWNER: TIANJIN LIWEICHUANG SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20111009 |
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