CN102455582A - Projector - Google Patents
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- CN102455582A CN102455582A CN2010105253376A CN201010525337A CN102455582A CN 102455582 A CN102455582 A CN 102455582A CN 2010105253376 A CN2010105253376 A CN 2010105253376A CN 201010525337 A CN201010525337 A CN 201010525337A CN 102455582 A CN102455582 A CN 102455582A
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Abstract
The invention discloses a projector comprising a light source module, a light source lens group, an imaging device and a projection lens group. An out-light surface and an in-light surface of a uniform light lens both are provided with a plurality of salient points in array form; the light source lens group is provided with a filtering converging lens at an out-light end, and the in-light surface of the filtering converging lens is an outward convex arc-shaped surface; the out-light surface of the uniform light lens is provided with the salient points, and the light equalization effect is good, so, even if the light converging rate of the filtering converging lens is high, a surface beam with uniform light intensity distribution also can be formed; with the filtering converging lens, light effusion loss is reduced, and the light beam, which still has non-uniform light intensity after being processed in light equalization treatment by the light uniform lens, can have more uniform light intensity distribution after being further processed in the light equalization treatment by the filtering converging lens. The projector reduces optical loss in the light source settling process, and improves illumination uniformity in an illumination area, so that the projected images are clear and brighter, and the projector is affected less by environment light source and has good service performance.
Description
Technical field
The present invention relates to image output device field, particularly a kind of projector.
Background technology
Projector generally comprises light source module, light lens group, image forming apparatus and projection lens group; In the course of work; The light beam that sends from light source module is organized into uniform beam through the light lens group, and this uniform beam is projeced into image forming apparatus, illuminates the image that is formed at image forming apparatus; After projection lens group is amplified and exported this image, form projected image in projection lens group the place ahead.
The light intensity and the illumination uniformity coefficient of the uniform beam of supplying with image forming apparatus depended in the sharpness of projected image and brightness; And the light beam that the light intensity of uniform beam and illumination uniformity coefficient are sent by light lens group arrangement light source module and accomplishing; Therefore, the performance of the projected image quality of projector and light lens is closely bound up.
Existing projector, its light source module use a plurality of pointolite arrays to form a regional light source mostly, and each pointolite sends light beam, is organized into uniform beam through the light lens group.Owing to form the light beam that each pointolite of light source module sends, its center regional luminance is high, and then light intensity is low toward radiation all around, and brightness is low, and can form the shadow district in the relevant zone of each light beam.When therefore the light lens group is put the light beam that is sent by each pointolite in order; General is that plane, exiting surface are that the lenticular light of evagination is brought light beam that mirror sends each pointolite together and brought together and form a high brightness beam by an incidence surface earlier; This high brightness beam central area light intensity is high; Light intensity is low all around; Be that the male and fomale(M&F) that is provided with a plurality of salient points, the even optical lens that exiting surface is the plane are put the light intensity of high brightness beam evenly in order by an incidence surface again, formation one is the average face light beam of light distribution in the zone, with the image of irradiation image forming apparatus.
Above-mentioned light lens group is in the process of arrangement light beam; When sparing optical processing, because the incidence surface of even optical lens is rough, it is different that light gets into the incident angle of each point when sparing optical lens; Refraction angle was also different when each point got into the light bright dipping of sparing optical lens; Therefore there is part light that loss is gone out the irradiation area of image forming apparatus and forms optical loss, reduces the light intensity of the face light beam that forms, make projection image dark partially; Be subject to other interference of light sources in the projection environment, influence the use of projector.Be to improve the light intensity of face light beam, the general power that strengthens the light source module that adopts, this will make energy consumption raise, and use cost increases, and the heat radiation difficulty of light source module increases, image serviceable life; It is to improve light to bring the light of mirror together and bring rate together that another kind is done rule; So that the high brightness beam light intensity that forms is more concentrated; But this way will increase the difficulty of even optical processing; Make the face light beam that forms through even optical lens still have central area brightness and be higher than phenomenon all around, reduce the sharpness of projected image.
Therefore, existing projector is difficult to take into account and reduces optical loss and improve illumination uniformity coefficient two aspects.
Summary of the invention
The objective of the invention is to the deficiency of prior art and a kind of optical loss that had both reduced in the light source arrangement process is provided, can improve the projector of illumination uniformity coefficient in the light area again.
For realizing above-mentioned purpose, the present invention adopts following technical proposals.
Projector; Comprise light source module, light lens group, image forming apparatus and projection lens group; Said light source module comprises the light source that is formed by a plurality of pointolite arrays; Said light lens group has light to bring mirror and even optical lens together, and the equal array of the incidence surface of said even optical lens and exiting surface has a plurality of salient points; Said light lens group is provided with to filter at bright dipping one end brings mirror together, and the incidence surface that mirror is brought in said optical filtering together is the arcwall face of evagination.
The present invention includes following further technical scheme.
Said light is brought mirror together and is comprised successively that according to the light ray propagation direction light source concentrates lens and transition to bring mirror together; Said light source concentrates lens over against said light source module; The exiting surface that said light source concentrates lens and transition to bring mirror together is the cambered surface of evagination, and the maximum caliber of the maximum caliber of mirror greater than the concentrated lens of said light source brought in said transition together.
Wherein, to concentrate the incidence surface of lens be to the center arc incidence surface of indent gradually from periphery to said light source.
Further, the salient point of said even optical lens is that end face is the evagination convex surface, the side is the salient point that is parallel to the plane of light ray propagation direction.
Said light lens group comprises that at least two transition brings mirror together.
Said light lens group comprises at least two even optical lens.
Further, be arranged at intervals with transition between the said even optical lens and bring mirror together, and the exiting surface of the incidence surface of mirror over against an even optical lens brought in said optical filtering together.
Or said light lens group is provided with at least two transition and brings mirror together, and mirror is brought in described transition together and even optical lens sets gradually according to the light ray propagation direction.
According to above-described, said optical filtering is brought the arc incidence surface camber of mirror together and is brought 1/10 of aperture of mirror together less than optical filtering.
Wherein, the axis direction of the said light lens group of said clothes master favours the axis direction of said image forming apparatus, and the axes intersect place of said image forming apparatus and said light lens group is provided with refracting plates.
Beneficial effect of the present invention is: projector; Comprise light source module, light lens group, image forming apparatus and projection lens group; Said light source module comprises the light source that is formed by a plurality of pointolite arrays; Said light lens group has light to bring mirror and even optical lens together, and the equal array of the incidence surface of said even optical lens and exiting surface has a plurality of salient points; Said light lens group is provided with to filter at bright dipping one end brings mirror together, and the incidence surface that mirror is brought in said optical filtering together is the arcwall face of evagination; After light is sent by light source module; Bringing mirror together through light brings together and forms a high brightness beam; Form the uniform face light beam of a light intensity through said even optical lens again, because the incidence surface and the exiting surface of said even optical lens are provided with salient point, even light effect is better; Even thereby the light that light is brought mirror together brings the rate height together, the high brightness beam that also can make formation is through even optical lens and form the average face light beam of light distribution in the irradiation area; Bring mirror together owing to be provided with said optical filtering again; Through said even optical lens exiting surface and the outer convex incidence surface collection that the light of scattering is brought mirror together by said optical filtering is brought together; And the plane exiting surface bring mirror through filtering together evenly penetrates, and forms that an all directions direction of propagation is consistent, the average face light beam of light distribution in the light area, thereby reduced owing to spare the light loss loss that the optical lens surface irregularity causes; Simultaneously; Because it is arcwall face that the incidence surface of mirror is brought in said optical filtering together, the incident angle of each point is different, also can play even polishing reason effect; Make via the uneven light beam of light intensity still after the even polishing reason of even optical lens, light distribution is more even after the further even polishing reason of mirror is brought in said optical filtering together; The present invention had both reduced the optical loss in the light source arrangement process, had improved illumination uniformity coefficient in the light area again, thereby made projection image clear and brightness is high, and it is little influenced by environment light source, and result of use is good.
Description of drawings
Utilize accompanying drawing that the present invention is described further, but the embodiment in the accompanying drawing does not constitute any restriction of the present invention.
Fig. 1 is the inner structure synoptic diagram of projector of the present invention.
Fig. 2 is the inner structure synoptic diagram at another visual angle of projector of the present invention.
Fig. 3 is the structural representation that the light source of projector of the present invention is brought mirror together.
Fig. 4 is the structural representation of the even optical lens in the back side of projector of the present invention.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 comprise:
1---mirror is brought in transition together to light source module 211---light source is concentrated lens 212---
22---spare optical lens 221---salient point 23---optical filtering and bring mirror together
3---image forming apparatus 4---projection lens group 5---refracting plates.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
See illustrated in figures 1 and 2; Projector of the present invention; Comprise light source module 1, light lens group, image forming apparatus 3 and projection lens group 4; Said light source module 1 comprises the light source that is formed by a plurality of pointolite arrays, and said light lens group has light to bring mirror and even optical lens 22 together, and the equal array of the incidence surface of said even optical lens 22 and exiting surface has a plurality of salient points 221; Said light lens group is provided with to filter at bright dipping one end brings mirror 23 together, and the incidence surface that mirror 23 is brought in said optical filtering together is the arcwall face of evagination.
The present invention in use; After light is sent by light source module 1, bring mirror together through light and bring together and form a high brightness beam, form the uniform face light beam of a light intensity through said even optical lens 22 again; Because the incidence surface and the exiting surface of said even optical lens 22 are provided with salient point 221; Even light effect is better, even thereby the light light of bringing mirror together bring the rate height together, the high brightness beam that also can make formation is through even optical lens 22 and form the average face light beam of light distribution in the irradiation area; Bring mirror 23 together owing to be provided with said optical filtering again; Through said even optical lens 22 exiting surfaces and the outer convex incidence surface collection that the light of scattering is brought mirror 23 together by said optical filtering is brought together; And the plane exiting surface bring mirror 23 through filtering together evenly penetrates, and forms that an all directions direction of propagation is consistent, the average face light beam of light distribution in the light area, thereby reduced owing to spare the light loss loss that optical lens 22 surface irregularities cause; Simultaneously; Because it is arcwall face that the incidence surface of mirror 23 is brought in said optical filtering together, the incident angle of each point is different, also can play even polishing reason effect; Make via the uneven light beam of light intensity still after the even optical lens 22 even polishings reasons, light distribution is more even after mirror 23 further even polishings reasons are brought in said optical filtering together; The present invention had both reduced the optical loss in the light source arrangement process, had improved illumination uniformity coefficient in the light area again, thereby made projection image clear and brightness is high, and it is little influenced by environment light source, and result of use is good.
Face light beam through arrangement becomes the light source that said image forming apparatus 3 forms images, and after said image forming apparatus 3 forms image informations, gets into said projection lens group 4, and penetrates said projection lens group 4 and formation projection image.
Wherein, Said light is brought mirror together and is comprised successively that according to the light ray propagation direction light source concentrates lens 211 and transition to bring mirror 212 together; Said light source concentrates lens 211 over against said light source module 1; The exiting surface that said light source concentrates lens 211 and transition to bring mirror 212 together is the cambered surface of evagination, and the maximum caliber of the maximum caliber of mirror 212 greater than the concentrated lens 211 of said light source brought in said transition together.The light that said light source module 1 sends is concentrated lens 211 to bring together through said light source and is focused on, form the convection light of high brightness; Because the maximum caliber that mirror 212 is brought in said transition together is concentrated the maximum caliber of lens 211 greater than said light source, the light beam illuminating area of then bringing mirror 212 arrangements together via said transition becomes big, forms bigger high brightness beam; Be convenient to even optical lens 22 and spare the polishing reason; Improved the even light effect of even optical lens 22, therefore, even light source is concentrated the rate of bringing together the height of 211 pairs of light of lens; Also can be convenient to even optical lens 22 and spare optical processing, improve the dependability of this projector.
See shown in Figure 3ly, it is to the center arc incidence surface of indent gradually from periphery that said light source is concentrated the incidence surface of lens 211.The arc incidence surface of this indent is easier to gather concentrated light, reduces optical loss.
See shown in Figure 4ly, the salient point 221 of said even optical lens 22 is for end face is the evagination convex surface, the side is the salient point 221 that is parallel to the plane of light ray propagation direction.The salient point 221 of this shape has guaranteed light by the end face collection, and parallel sided and light ray propagation direction so dull thread is come in and gone out, have reduced light loss.
Said light lens group comprises that at least two transition brings mirror 212 together.Preferably; According to the light ray propagation direction; The maximum caliber that mirror 212 is brought in the transition that is positioned at the place ahead together is brought the maximum caliber of mirror 212 together greater than the transition at rear; High brightness beam light beam illuminating area after mirror 212 processing are brought in several transition together is increased gradually, and the even optical lens 22 of being more convenient for is spared optical processing
Said light lens group comprises at least two even optical lens 22.Light beam has further improved the light distribution uniformity coefficient in the irradiation area through for several times even optical processing like this.
Further, be arranged at intervals with transition between the said even optical lens 22 and bring mirror 212 together, and the exiting surface of the incidence surface of mirror 23 over against an even optical lens 22 brought in said optical filtering together.
Or said light lens group is provided with at least two transition and brings mirror 212 together, and described transition is brought mirror 212 together and set gradually according to the light ray propagation direction with even optical lens 22.
The set-up mode that mirror 212 and even optical lens 22 are brought in above-mentioned transition together can make up according to actual needs, with further raising illumination uniformity coefficient and minimizing light loss.
Said optical filtering is brought the arc incidence surface camber of mirror 23 together and is brought 1/10 of mirror 23 bores together less than optical filtering.Said optical filtering is brought mirror 23 together and is mainly worked to reduce optical loss and further improve even light effect, but not light is brought effect together, so camber is unsuitable too high, slightly radian gets final product.
Wherein, the axis direction of the said light lens group of said clothes master favours the axis direction of said image forming apparatus 3, and said image forming apparatus 3 is provided with refracting plates 5 with the axes intersect place of said light lens group.
The above only is a preferred embodiments of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, characteristic and principle change or modify, includes in patent claim of the present invention.
Claims (10)
1. projector, it comprises light source module, light lens group, image forming apparatus and projection lens group, and said light source module comprises the light source that is formed by a plurality of pointolite arrays, and said light lens group has light to bring mirror and even optical lens together, it is characterized in that:
The equal array of the incidence surface of said even optical lens and exiting surface has a plurality of salient points;
Said light lens group is provided with to filter at bright dipping one end brings mirror together, and the incidence surface that mirror is brought in said optical filtering together is the arcwall face of evagination.
2. projector according to claim 1; It is characterized in that: said light is brought mirror together and is comprised successively that according to the light ray propagation direction light source concentrates lens and transition to bring mirror together; Said light source concentrates lens over against said light source module; The exiting surface that said light source concentrates lens and transition to bring mirror together is the cambered surface of evagination, and the maximum caliber of the maximum caliber of mirror greater than the concentrated lens of said light source brought in said transition together.
3. projector according to claim 2 is characterized in that: the incidence surface that said light source is concentrated lens for from periphery to the center arc incidence surface of indent gradually.
4. projector according to claim 3 is characterized in that: the salient point of said even optical lens is that end face is the evagination convex surface, the side is the salient point that is parallel to the plane of light ray propagation direction.
5. projector according to claim 4 is characterized in that: said light lens group comprises that at least two transition brings mirror together.
6. projector according to claim 4 is characterized in that: said light lens group comprises at least two even optical lens.
7. projector according to claim 6 is characterized in that: be arranged at intervals with transition between the said even optical lens and bring mirror together, and the exiting surface of the incidence surface of mirror over against an even optical lens brought in said optical filtering together.
8. projector according to claim 6 is characterized in that: said light lens group is provided with at least two transition and brings mirror together, and mirror is brought in described transition together and even optical lens sets gradually according to the light ray propagation direction.
9. according to any described projector of claim 1～8, it is characterized in that: said optical filtering is brought the arc incidence surface camber of mirror together and is brought 1/10 of aperture of mirror together less than optical filtering.
10. projector according to claim 9; It is characterized in that: the axis direction of the said light lens group of said clothes master favours the axis direction of said image forming apparatus, and the axes intersect place of said image forming apparatus and said light lens group is provided with refracting plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105253376A CN102455582A (en) | 2010-10-30 | 2010-10-30 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105253376A CN102455582A (en) | 2010-10-30 | 2010-10-30 | Projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102455582A true CN102455582A (en) | 2012-05-16 |
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ID=46038923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105253376A Pending CN102455582A (en) | 2010-10-30 | 2010-10-30 | Projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102455582A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022967A (en) * | 2019-11-25 | 2020-04-17 | 中国科学院苏州纳米技术与纳米仿生研究所 | Regional light source dodging structure applied to fluorescence imaging system and fluorescence imaging system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000314848A (en) * | 1999-04-30 | 2000-11-14 | Kyocera Corp | Projection type display device |
| CN1405599A (en) * | 1997-04-09 | 2003-03-26 | 三星电子株式会社 | Reflective projecting apparatus |
| CN2685930Y (en) * | 2003-10-27 | 2005-03-16 | 翟金会 | Silicon-base microcrystal single chip type optical engine structure |
| CN1658022A (en) * | 2004-01-27 | 2005-08-24 | 株式会社液晶先端技术开发中心 | Light application apparatus, crystallization apparatus and optical modulation element assembly |
| CN101025447A (en) * | 2006-02-17 | 2007-08-29 | 上海信诚至典网络技术有限公司 | Two-face fly-eye lens |
| CN101520523A (en) * | 2009-04-14 | 2009-09-02 | 上海微电子装备有限公司 | Microlens array |
| CN201402362Y (en) * | 2009-04-24 | 2010-02-10 | 红蝶科技(深圳)有限公司 | High light-efficiency minitype projection optical engine |
| WO2010110287A1 (en) * | 2009-03-26 | 2010-09-30 | 株式会社 パールライティング | Light source unit |
| CN201837821U (en) * | 2010-10-30 | 2011-05-18 | 东莞市松毅电子有限公司 | Projector |
-
2010
- 2010-10-30 CN CN2010105253376A patent/CN102455582A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405599A (en) * | 1997-04-09 | 2003-03-26 | 三星电子株式会社 | Reflective projecting apparatus |
| JP2000314848A (en) * | 1999-04-30 | 2000-11-14 | Kyocera Corp | Projection type display device |
| CN2685930Y (en) * | 2003-10-27 | 2005-03-16 | 翟金会 | Silicon-base microcrystal single chip type optical engine structure |
| CN1658022A (en) * | 2004-01-27 | 2005-08-24 | 株式会社液晶先端技术开发中心 | Light application apparatus, crystallization apparatus and optical modulation element assembly |
| CN101025447A (en) * | 2006-02-17 | 2007-08-29 | 上海信诚至典网络技术有限公司 | Two-face fly-eye lens |
| WO2010110287A1 (en) * | 2009-03-26 | 2010-09-30 | 株式会社 パールライティング | Light source unit |
| CN101520523A (en) * | 2009-04-14 | 2009-09-02 | 上海微电子装备有限公司 | Microlens array |
| CN201402362Y (en) * | 2009-04-24 | 2010-02-10 | 红蝶科技(深圳)有限公司 | High light-efficiency minitype projection optical engine |
| CN201837821U (en) * | 2010-10-30 | 2011-05-18 | 东莞市松毅电子有限公司 | Projector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022967A (en) * | 2019-11-25 | 2020-04-17 | 中国科学院苏州纳米技术与纳米仿生研究所 | Regional light source dodging structure applied to fluorescence imaging system and fluorescence imaging system |
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Owner name: SHENZHEN TONGFAXIN CIRCUIT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DONGGUAN SONGYI ELECTRONICS CO., LTD. Effective date: 20131101 |
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Free format text: CORRECT: ADDRESS; FROM: 523000 DONGGUAN, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
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Effective date of registration: 20131101 Address after: Two road in Longgang District of Shenzhen City, Guangdong province 518000 Ping Street No. 33 Xinfeng Nianfeng community Applicant after: Shenzhen Tongfaxin Circuit Technology Co., Ltd. Address before: 523000 Guangdong province Dongguan city Feng Lu Kiu building B block 1308 Dongguan Song Yi Electronics Co. Ltd. Applicant before: Dongguan City Songyi Electronic Co., Ltd. |
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Application publication date: 20120516 |