CN102768458A - Double-lamp illumination system and projector - Google Patents
Double-lamp illumination system and projector Download PDFInfo
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- CN102768458A CN102768458A CN2012102415560A CN201210241556A CN102768458A CN 102768458 A CN102768458 A CN 102768458A CN 2012102415560 A CN2012102415560 A CN 2012102415560A CN 201210241556 A CN201210241556 A CN 201210241556A CN 102768458 A CN102768458 A CN 102768458A
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- optical wand
- lamp illuminating
- illuminating system
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Abstract
The invention is applicable to the field of projection and provides a double-lamp illumination system and a projector. The double-lamp illumination system comprises two white light sources which are arranged in parallel, and a light bar, wherein a collimating device is arranged on an output light path of each of the two white light sources; a focusing device which is used for coupling light from the two collimating devices to the light bar is arranged between the two collimating devices and the light bar; and a color wheel is arranged at an incident end of the light bar. The collimating devices and the focusing device are arranged on the output light paths of the two white light sources, so that the output light from the first light source and the second light source is coupled to the light bar in a non-overlapped mode in different spaces, the interference loss is avoided, and the utilization rate of light energy is improved; and moreover, a congested optical structure at the incident end of the light bar is improved, the color wheel is accommodated in a large enough space, and the light with two colors can be mixed in the light bar in the process of alternating two light filters, so that the color uniformity of a projection picture is achieved.
Description
Technical field
The invention belongs to the shadow casting technique field, relate in particular to a kind of double-lamp illuminating system and comprise the projector of this system.
Background technology
At present, handle in (DLP) two lamp projecting illumination systems, generally various coupled apparatuses are set advancing optical wand from the optically-coupled of Different Light at optical wand incident end in digital light.In this structure, the space of optical wand incident end can be very narrow, not only makes light when being coupled into optical wand, lose a lot of luminous energy.And, make optical wand incident end can't place colour wheel, colour wheel can only be positioned over the exit end of optical wand.When colour wheel is positioned over the exit end of optical wand, owing to can't carry out colour mixture, therefore will cause screen the uneven phenomenon of color to occur in the alternately part of two kinds of optical filters, influence projection quality.
Summary of the invention
The object of the present invention is to provide a kind of double-lamp illuminating system, it is low to be intended to solve the existing illuminator efficiency of light energy utilization, and because the unreasonable uneven problem of image color that causes of structural design.
The present invention realizes like this; A kind of double-lamp illuminating system; Comprise two white light sources that are arranged side by side, and an optical wand, a collimation device on the output light path of each said white light source, respectively be provided with; Between two collimator apparatuses and said optical wand, be provided with the focalizer that is optically coupled to said optical wand that is used for coming from two collimator apparatuses, be provided with colour wheel at the incident end of said optical wand.
Another object of the present invention is to provide a kind of projector, comprise display system and be used to the illuminator that said display system provides illumination, said illuminator adopts described double-lamp illuminating system.
The present invention is provided with collimator apparatus and focalizer on the output light path of two white light sources; Make the output light of first light source and secondary light source in different spaces, not have being coupled in the optical wand of overlapping; Avoid two-beam in same narrow space, to be coupled and produced interference loss; Improve the utilization factor of luminous energy, thereby improved projection brightness.And; This structure has been improved the comparatively crowded optical texture of optical wand incident end, and then has enough space placement colour wheels, when two kinds of optical filters replace; The light of two kinds of colors can carry out colour mixture in optical wand, thereby has improved the color uniformity of projected picture.And then, make the projector that adopts this lighting device have higher projection brightness and uniform color.
Description of drawings
Fig. 1 is the structural representation of double-lamp illuminating system embodiment of the present 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 double-lamp illuminating system embodiment provided by the invention, for the ease of explanation, only shows the part relevant with present embodiment.
This illuminator comprises two white light sources that are arranged side by side, and on the output light path of two white light sources, respectively is provided with a collimation device.Like Fig. 1, the central shaft that two white light sources are respectively first light source 1 and the emergent light of secondary light source 2, the first light sources 1 and secondary light source 2 is parallel to each other.On the output light path of first light source 1, be provided with first collimator apparatus 3, be used for collimate back output of the light that first light source 1 sends.On the output light path of secondary light source 2, be provided with second collimator apparatus 4, be used for collimate back output of the light that secondary light source 2 sends.On the output light path of first collimator apparatus 3 and second collimator apparatus 4, also be provided with a focalizer 5, on the output light path of focalizer 5, be provided with optical wand 6, focalizer 5 will be coupled in the optical wand 6 from the collimated light of first collimator apparatus 3 and second collimator apparatus 4.In addition, also be provided with colour wheel 7, can timesharing see through three kinds of monochromatic light of red, green, blue at the incident end of optical wand 6.
Present embodiment is provided with collimator apparatus and focalizer on the output light path of two white light sources; Make the output light of first light source 1 and secondary light source 2 in different spaces, not have being coupled in the optical wand 6 of overlapping; Avoid two-beam in the same space, to be coupled and interfered loss; Improve the utilization factor of luminous energy, thereby improved projection brightness.And; This structure does not need at the incident end of optical wand 6 catoptron to be set; Improved the comparatively crowded optical texture of optical wand incident end, and then had enough space placement colour wheels 7, when two kinds of optical filters of colour wheel replace; The light of two kinds of colors can carry out colour mixture in optical wand, thereby has improved the color uniformity of projected picture.
Preferably, the focus of focalizer 5 is positioned on the plane of incidence 61 of optical wand 6, first light source 1 and the light that secondary light source 2 sends is focused on the plane of incidence 61 of optical wand 6 just, to improve coupling efficiency.
Preferably, first light source 1 is identical with the structure of secondary light source 2, includes luminophor 101 and reflection shield 102, and reflection shield has a reflective surface, and this reflective surface can be elliposoidal.Certainly, reflective surface also can adopt other shapes, mainly confirms according to the required beam shape of reality.Luminophor 101 can be positioned on the central shaft of reflective surface just, to guarantee the symmetry of folded light beam.
Further, first collimator apparatus 3, second collimator apparatus 4 and focalizer 5 can adopt separate lenses or lens combination.Specifically can comprise at least one convex lens, can further include at least one concave lens.Promptly can adopt independent convex lens, the lens combination that also can adopt a plurality of convex lens to combine can also be the lens combination that is combined by several convex lens and concavees lens.
Double-lamp illuminating system provided by the invention has the higher efficiency of light energy utilization, and its projection brightness is higher, has solved the uneven problem of projected image color simultaneously, is applicable in the projector, is particularly useful for the DLP projector.
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 (6)
1. double-lamp illuminating system; It is characterized in that; Comprise two white light sources that are arranged side by side, and an optical wand, a collimation device on the output light path of each said white light source, respectively be provided with; Between two said collimator apparatuses and said optical wand, be provided with the focalizer that is optically coupled to said optical wand that is used for coming from two said collimator apparatuses, be provided with colour wheel at the incident end of said optical wand.
2. double-lamp illuminating system as claimed in claim 1 is characterized in that, said white light source comprises luminophor and the reflection shield of the light that is used for said luminophor is sent to said collimator apparatus reflection.
3. double-lamp illuminating system as claimed in claim 1 is characterized in that the focus of said focalizer is positioned on the plane of incidence of said optical wand.
4. like each described double-lamp illuminating system of claim 1 to 3, it is characterized in that said collimator apparatus and/or focalizer include at least one convex lens.
5. double-lamp illuminating system as claimed in claim 4 is characterized in that said collimator apparatus and/or focalizer also comprise at least one concave lens.
6. a projector comprises display system and is used to the illuminator that said display system provides illumination, and it is characterized in that, said illuminator adopts each described double-lamp illuminating system of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102415560A CN102768458A (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination system and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102415560A CN102768458A (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination system and projector |
Publications (1)
| Publication Number | Publication Date |
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| CN102768458A true CN102768458A (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102415560A Pending CN102768458A (en) | 2012-07-12 | 2012-07-12 | Double-lamp illumination system and projector |
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| CN (1) | CN102768458A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526166A (en) * | 2016-06-20 | 2017-12-29 | 电装国际美国公司 | Head-up display |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000250136A (en) * | 1999-03-04 | 2000-09-14 | Mitsubishi Electric Corp | Projection type display device |
| US6505939B1 (en) * | 1999-04-23 | 2003-01-14 | Koninklijke Philips Electronics N.V. | Projection system comprising at least two light sources having a unique optical arrangement with respect to at least one spatial light modulator |
| US20050146891A1 (en) * | 2002-10-09 | 2005-07-07 | Matsushita Electric Industrial Co., Ltd. | Illuminator and projection image display employing it |
| CN1983020A (en) * | 2005-12-12 | 2007-06-20 | 明基电通股份有限公司 | Projector with multiple light sources |
| CN102540676A (en) * | 2010-12-27 | 2012-07-04 | 台达电子工业股份有限公司 | Light source system and projection device comprising same |
| CN202771148U (en) * | 2012-07-12 | 2013-03-06 | 芜湖雅图数字视频技术有限公司 | Dual-lamp lighting system and projector |
-
2012
- 2012-07-12 CN CN2012102415560A patent/CN102768458A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000250136A (en) * | 1999-03-04 | 2000-09-14 | Mitsubishi Electric Corp | Projection type display device |
| US6505939B1 (en) * | 1999-04-23 | 2003-01-14 | Koninklijke Philips Electronics N.V. | Projection system comprising at least two light sources having a unique optical arrangement with respect to at least one spatial light modulator |
| US20050146891A1 (en) * | 2002-10-09 | 2005-07-07 | Matsushita Electric Industrial Co., Ltd. | Illuminator and projection image display employing it |
| CN1983020A (en) * | 2005-12-12 | 2007-06-20 | 明基电通股份有限公司 | Projector with multiple light sources |
| CN102540676A (en) * | 2010-12-27 | 2012-07-04 | 台达电子工业股份有限公司 | Light source system and projection device comprising same |
| CN202771148U (en) * | 2012-07-12 | 2013-03-06 | 芜湖雅图数字视频技术有限公司 | Dual-lamp lighting system and projector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526166A (en) * | 2016-06-20 | 2017-12-29 | 电装国际美国公司 | Head-up display |
| CN107526166B (en) * | 2016-06-20 | 2020-06-16 | 电装国际美国公司 | Head-up display |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHU ANMANTE MICRO-DISPLAY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUHU ACTO DIGITAL VIDEO TECHNOLOGY CO., LTD. Effective date: 20131016 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20131016 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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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121107 |