CN102768459A - Double-lamp illumination device and projection equipment - Google Patents
Double-lamp illumination device and projection equipment Download PDFInfo
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- CN102768459A CN102768459A CN2012102415594A CN201210241559A CN102768459A CN 102768459 A CN102768459 A CN 102768459A CN 2012102415594 A CN2012102415594 A CN 2012102415594A CN 201210241559 A CN201210241559 A CN 201210241559A CN 102768459 A CN102768459 A CN 102768459A
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Abstract
The invention is applicable to the field of projection and provides a double-lamp illumination device and projection equipment. The double-lamp illumination device comprises two white light sources which are arranged in parallel, wherein a color wheel is arranged on an output light path of each of the two white light sources; the two color wheels have the same structure and synchronously rotate; and a light equalization system which can directly receive emergent light from the color wheels is arranged on the output light paths of the two color wheels. By the double-lamp illumination device, the light emitted from the two light sources is coupled to the light equalization system in a non-overlapped mode in different spaces, the interference loss generated by coupling two beams of light in the same narrow space is avoided, the problem that the light rays cannot fully enter an extremely small light entrance is solved, and the utilization rate of light energy is improved, so that the projection brightness is improved; and moreover, the light penetrating through the color wheels is not required to be strictly focused at the light entrance of the light equalization system, the positions of the first light source and the second light source are not strictly limited, and the thermal design of the device is improved.
Description
Technical field
The invention belongs to the shadow casting technique field, relate in particular to a kind of pair of lamp lighting apparatus and comprise the projector equipment of this device.
Background technology
At present, digital light is handled (DLP) two lamp projecting illumination systems and is generally adopted optical wand to carry out equal polishing shape, and the light that two light sources send advances optical wand through devices such as catoptrons with optically-coupled, and colour wheel then is placed on the light-emitting window of optical wand.The weak point of this system is: the light that light source sends is when getting into optical wand; Because the size of optical wand inlet area is less, less than the size of launching spot, make light can not fully get into optical wand usually; And different light beams is coupled in same small space; Also can produce interference loss, therefore the coupling efficiency of this system is lower, and then influences projection brightness; In addition, optical wand is received the light time, needs light must focus on the optical wand inlet, and like this, the position of light source just receives strict restriction, is unfavorable for the heat dissipation design of optical projection system.
Summary of the invention
The object of the present invention is to provide a kind of pair of lamp lighting apparatus, be intended to solve the problem that the efficiency of light energy utilization that has two lamp lighting apparatus now is low, be not easy to heat dissipation design.
The present invention realizes like this; A kind of pair of lamp lighting apparatus; Comprise two white light sources that are arranged side by side; On the output light path of each said white light source, respectively be provided with a colour wheel, the identical and synchronous rotation of the structure of two said colour wheels is provided with the equal photosystem that can directly receive from the emergent light of said colour wheel on the output light path of two colour wheels.
Another object of the present invention is to provide a kind of projector equipment, comprise display device reaches provides illumination for said display device lighting device, said lighting device adopts described pair of lamp lighting apparatus.
The two lamp lighting apparatus of the present invention are respectively established a colour wheel at the output terminal of two light sources; And one equal photosystem is set at the output terminal of two colour wheels; What the light that two light sources are sent did not have a stack in different spaces be coupled into equal photosystem, avoided two-beam coupling and interference loss of producing in same narrow space, and avoided the problem that causes light not get into fully owing to light inlet is too small; Improve the utilization factor of luminous energy, thereby improved projection brightness.And the light of process colour wheel needn't strict focus on the light inlet of equal photosystem, therefore the position of first light source and secondary light source needn't strict be limited, and then helps the heat dissipation design of this device.And then, make and adopt the projector equipment of this device to have projection brightness height and the good advantage of thermal diffusivity.
Description of drawings
Fig. 1 is the structural representation () of the two lamp lighting apparatus of the embodiment of the invention;
Fig. 2 is the structural representation (two) of the two lamp lighting apparatus of the embodiment of the invention;
Fig. 3 is the fundamental diagram of the compound eye mirror group in the embodiment of the invention;
Fig. 4 is the structural representation of the compound eye mirror group in the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 shows the structural representation of provided by the invention couple of lamp lighting apparatus embodiment, for the ease of explanation, only shows the part relevant with present embodiment.
This pair lamp lighting apparatus comprises two white light sources that are arranged side by side; On the output light path of each white light source, respectively be provided with a colour wheel, like Fig. 1, two white light sources are first light source 1 and secondary light source 2; On the output light path of first light source 1, be provided with first colour wheel 3; On the output light path of secondary light source 2, be provided with second colour wheel 4, on the output light path of first colour wheel 3 and second colour wheel 4, be provided with an equal photosystem 5, all photosystem 5 has bigger light inlet; Can directly receive the output light of first colour wheel 3 and second colour wheel 4, and devices such as condenser lens needn't be set forwardly.The structure of first colour wheel 3 and second colour wheel 4 is identical; The kind of the optical filter that the two is provided with (optical filtering wave band) is identical with number; And first colour wheel 3 and second colour wheel 4 rotate synchronously, at any one time promptly; The optical filter of the identical category on first colour wheel 3 and second colour wheel 4 forwards same position to, makes the color of first colour wheel, 3 transmissions all identical at any time with the color of second colour wheel, 4 transmissions.
This pair lamp lighting apparatus is respectively established a colour wheel at the output terminal of two light sources; And the bigger equal photosystem of one light inlet area is set at the output terminal of two colour wheels; What the light that two light sources are sent did not have a stack in different spaces be coupled into equal photosystem, avoided two-beam coupling and interference loss of producing in same narrow space, and avoided the problem that causes light not get into fully owing to light inlet is too small; Improve the utilization factor of luminous energy, thereby improved projection brightness.And the light of process colour wheel needn't strict focus on the light inlet of equal photosystem, therefore the position of first light source and secondary light source needn't strict be limited, and then helps the heat dissipation design of this device.In addition; When colour wheel places the bright dipping side of equal photosystem; The uneven phenomenon of mixed light can take place when two optical filters replace, and then cause color uneven, two colour wheels in the present embodiment are positioned over the incident side of equal photosystem; Light through different optical filter outputs can all carry out colour mixture in the photosystem, and then has guaranteed the homogeneity of additive color.
In the present embodiment, first colour wheel 3 and second colour wheel 4 comprise three optical filters usually at least, are respectively applied for transmit red light, green glow and blue light.Preferably, three optical filters are divided equally a disc, and the central angle that each optical filter is corresponding is 120 °.Certainly, optical filter also can be provided with more a plurality of, concrete, can along clockwise or counterclockwise evenly be provided with successively red-green-blue-red-green-blue-red ... Optical filter.More than be merely concrete embodiment, the number of optical filter, color and angle can be according to the specific requirement flexible design.
In the present embodiment, white light source can comprise luminophor 101 and reflection shield 102, and reflection shield 102 has a reflecting surface, and its shape can be elliposoidal or other required forms.
Like Fig. 2; In the present embodiment; All photosystem can comprise two collimating mirror groups and a compound eye mirror group, and two collimating mirror groups are respectively the first collimating mirror group 51 and the second collimating mirror group 52, wherein; The first collimating mirror group 51 is positioned on the output light path of first colour wheel 3, and the second collimating mirror group 52 is positioned on the output light path of second colour wheel 4.53 of compound eye mirror groups are positioned on the output light path of two collimating mirror groups, have higher equal light characteristic.Wherein, Light through first colour wheel 3 and 4 outputs of second colour wheel has certain angle of divergence; Two light beams become directional light after the first collimating mirror group 51 and the second collimating mirror group 52; Inject compound eye mirror group 53 then simultaneously, 53 pairs two bundles of compound eye mirror group directional light carries out equal optical processing and exports to the display panel 6 of optical projection system, like Fig. 3.Collimating mirror group in this equal photosystem can 100% be received from the light of colour wheel output; And this part light projected compound eye mirror group 53 fully; Optical energy loss is few; And because the efficient all characteristics of light of compound eye mirror group 53, make the optical wand that this equal photosystem 5 is more traditional the efficiency of light energy utilization and to go out uniformity of light higher.
Further; The first collimating mirror group 51 and the second collimating mirror group 51 include two lens; Promptly near the incident lens 511 of colour wheel with away from the exit lens 512 of colour wheel; The light that incident lens 511 will come from first colour wheel 3 focuses on, and its focus point overlaps with the focus of exit lens 512 near incident lens 511 just, make light beam through exit lens 512 for becoming directional light and to compound eye mirror group 53 output.
Further, like Fig. 4, compound eye mirror group 53 can comprise the incident fly's-eye lens 531 and outgoing fly's-eye lens 532 of coaxial setting.Incident fly's-eye lens 531 includes a plurality of lenticule unit 5311 that array is arranged that are with outgoing fly's-eye lens 532.The shape of this lenticule unit 5311 can adapt with the shape of the required illumination light of optical projection system; The lenticule unit of incident fly's-eye lens 531 and the lenticule unit of outgoing fly's-eye lens 532 are corresponding one by one, and the distance between two fly's-eye lenses is appropriate design according to actual needs.The light of each lenticule unit 5311 output of process fly's-eye lens all can project on the display panel 6 and cover whole display panel 6; Like this; Hot spot on the display panel 6 is the stack of the emergent light of numerous lenticule unit 5311, makes the illumination hot spot more even.
Further with reference to figure 4, the incident fly's-eye lens 531 and the outgoing fly's-eye lens 532 of this compound eye mirror group 53 can be arranged on two facing surfaces of a flat-plate lens 533, form an integral body, so that install.
Further; Incident fly's-eye lens 531 can also be one-body molded with this flat-plate lens 533 with outgoing fly's-eye lens 532; Promptly choose a suitable clear sheet, on two facing surfaces of this sheet material, process the lenticule cell array, be more convenient for like this making; And be more convenient for guaranteeing that the lenticule unit of incident fly's-eye lens 531 and outgoing fly's-eye lens 532 is corresponding one by one, produce error when avoiding assembling separately incident, outgoing fly's-eye lens.
Provided by the invention pair of lamp lighting apparatus is coupled to equal photosystem with the light that two light sources send through two colour wheels in two separate paths; And the receipts luminous energy power of the optical wand that this equal photosystem is more traditional is stronger; Its light loss is minimum; Avoid two-beam in the process of coupling, to reach the loss that when getting into equal optical device, produces, improved the degree of being illuminated of display panel; And the position of light source is unrestricted, is convenient to the design of cooling system; Guaranteed the homogeneity of display frame color simultaneously.This device is applicable in the optical projection system, especially the DLP optical projection system.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. two lamp lighting apparatus; It is characterized in that; Comprise two white light sources that are arranged side by side; On the output light path of each said white light source, respectively be provided with a colour wheel, the identical and synchronous rotation of the structure of two said colour wheels is provided with the equal photosystem that can directly receive from the emergent light of said colour wheel on the output light path of two colour wheels.
2. pair lamp lighting apparatus as claimed in claim 1; It is characterized in that; Said equal photosystem comprises that two collimating mirror groups and one are used for the compound eye mirror group that the light with said two collimating mirror groups output carries out equal optical processing; Said two collimating mirror groups are positioned at respectively on the output light path of two colour wheels, and said compound eye mirror group is positioned on the output light path of said two collimating mirror groups.
3. pair lamp lighting apparatus as claimed in claim 2; It is characterized in that; Said collimating mirror group comprises the incident lens near said colour wheel, and away from said colour wheel and be used for converting the light that comes from said incident lens into directional light and to the exit lens of said compound eye mirror group output.
4. like claim 2 or 3 described pairs of lamp lighting apparatus; It is characterized in that; Said compound eye mirror group comprises the incident fly's-eye lens and the outgoing fly's-eye lens of coaxial setting; Said incident fly's-eye lens and outgoing fly's-eye lens include a plurality of lenticule unit that array is arranged that are, and the lenticule unit of said incident fly's-eye lens and the lenticule unit of said outgoing fly's-eye lens are corresponding one by one.
5. pair lamp lighting apparatus as claimed in claim 4 is characterized in that, said incident fly's-eye lens and outgoing fly's-eye lens are arranged on two facing surfaces of a flat-plate lens.
6. pair lamp lighting apparatus as claimed in claim 5 is characterized in that, said incident fly's-eye lens and outgoing fly's-eye lens and said flat-plate lens are one-body molded.
7. a projector equipment comprises display device reaches provides illumination for said display device lighting device, it is characterized in that, said lighting device adopts each described pair of lamp lighting apparatus of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102415594A CN102768459A (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination device and projection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102415594A CN102768459A (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination device and projection equipment |
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| CN102768459A true CN102768459A (en) | 2012-11-07 |
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| CN2012102415594A Pending CN102768459A (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination device and projection equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613125A (en) * | 2016-12-23 | 2018-10-02 | 市光法雷奥（佛山）汽车照明系统有限公司 | Light-emitting device for motor vehicles |
| CN110045568A (en) * | 2019-05-13 | 2019-07-23 | 深圳市晟峰光电科技有限公司 | A kind of projection light machine of 3D printer |
| CN110858051A (en) * | 2018-08-23 | 2020-03-03 | 中强光电股份有限公司 | Projection device and illumination system |
| CN114384750A (en) * | 2022-01-26 | 2022-04-22 | 深圳市科金明电子股份有限公司 | Projection device |
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| CN1603887A (en) * | 2004-11-17 | 2005-04-06 | 东华大学 | Single chip double color wheel stereoprojection optical engine |
| CN1734313A (en) * | 2004-08-03 | 2006-02-15 | 三星电子株式会社 | The image projection equipment of lighting unit and this lighting unit of employing |
| JP2007264009A (en) * | 2006-03-27 | 2007-10-11 | Seiko Epson Corp | Projector |
| CN101923272A (en) * | 2009-06-12 | 2010-12-22 | 红蝶科技(深圳)有限公司 | Miniature projection optical engine based on three-color light source |
| JP2011107373A (en) * | 2009-11-17 | 2011-06-02 | Seiko Epson Corp | Lighting device and projector |
| CN202837788U (en) * | 2012-07-12 | 2013-03-27 | 芜湖雅图数字视频技术有限公司 | Double-lamp illumination device and projection equipment |
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2012
- 2012-07-12 CN CN2012102415594A patent/CN102768459A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1734313A (en) * | 2004-08-03 | 2006-02-15 | 三星电子株式会社 | The image projection equipment of lighting unit and this lighting unit of employing |
| CN1603887A (en) * | 2004-11-17 | 2005-04-06 | 东华大学 | Single chip double color wheel stereoprojection optical engine |
| JP2007264009A (en) * | 2006-03-27 | 2007-10-11 | Seiko Epson Corp | Projector |
| CN101923272A (en) * | 2009-06-12 | 2010-12-22 | 红蝶科技(深圳)有限公司 | Miniature projection optical engine based on three-color light source |
| JP2011107373A (en) * | 2009-11-17 | 2011-06-02 | Seiko Epson Corp | Lighting device and projector |
| CN202837788U (en) * | 2012-07-12 | 2013-03-27 | 芜湖雅图数字视频技术有限公司 | Double-lamp illumination device and projection equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613125A (en) * | 2016-12-23 | 2018-10-02 | 市光法雷奥（佛山）汽车照明系统有限公司 | Light-emitting device for motor vehicles |
| CN108613125B (en) * | 2016-12-23 | 2023-11-21 | 市光法雷奥（佛山）汽车照明系统有限公司 | Lighting device for a motor vehicle |
| CN110858051A (en) * | 2018-08-23 | 2020-03-03 | 中强光电股份有限公司 | Projection device and illumination system |
| CN110045568A (en) * | 2019-05-13 | 2019-07-23 | 深圳市晟峰光电科技有限公司 | A kind of projection light machine of 3D printer |
| CN114384750A (en) * | 2022-01-26 | 2022-04-22 | 深圳市科金明电子股份有限公司 | Projection device |
| CN114384750B (en) * | 2022-01-26 | 2024-03-26 | 深圳市科金明电子股份有限公司 | Projection device |
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Owner name: WUHU ANMANTE MICRO-DISPLAY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUHU ACTO DIGITAL VIDEO TECHNOLOGY CO., LTD. Effective date: 20131012 |
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Effective date of registration: 20131012 Address after: 13 No. 241000, Zhanghe Road, hi tech Industrial Development Zone, Anhui, Wuhu Applicant after: Wuhu Anmante Micro-Display Science & Technology Co., Ltd. Address before: 241000 Wuhu high tech Development Zone, Changjiang Road, No. 228, Anhui Applicant before: Wuhu ACTO Digital Video Technology Co., Ltd. |
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Application publication date: 20121107 |