JP2000180823A5 - - Google Patents
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- JP2000180823A5 JP2000180823A5 JP1998353161A JP35316198A JP2000180823A5 JP 2000180823 A5 JP2000180823 A5 JP 2000180823A5 JP 1998353161 A JP1998353161 A JP 1998353161A JP 35316198 A JP35316198 A JP 35316198A JP 2000180823 A5 JP2000180823 A5 JP 2000180823A5
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- JP
- Japan
- Prior art keywords
- light
- light emitting
- color
- emitting elements
- modulation element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000000051 modifying Effects 0.000 claims description 13
- 239000003086 colorant Substances 0.000 claims description 9
- 230000000875 corresponding Effects 0.000 claims description 8
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 2
Description
【発明の名称】プロジェクタ用の照明方法及び装置Patent application title: Illumination method and apparatus for a projector
【０００１】
【発明の属する技術分野】
この発明は、例えば映像表示装置などに有効なプロジェクタ用の照明方法及び照明装置に関するものである。
プロジェクタ用の照明方法[0001]
Field of the Invention
The present invention relates to, for example , a lighting method and a lighting device for a projector effective for a video display device or the like.
Lighting method for a projector
【０００７】
【課題を解決するための手段】
この発明は、プロジェクタ照明光源として、色が異なる発光素子を基板上に配列して、少なくとも２つの色の発光素子は、時間軸上で異なる時間帯に発光するように制御し、その同じ光路には、変調素子を設け、この変調素子を各色の光に対応した時間帯で、各色に対応する画像を形成するように制御することを基本的な特徴とする。 [0007]
[Means for Solving the Problems]
According to the present invention, light emitting elements of different colors are arranged on a substrate as a projector illumination light source, and light emitting elements of at least two colors are controlled to emit light in different time zones on the time axis, Basically, a modulation element is provided, and this modulation element is controlled to form an image corresponding to each color in a time zone corresponding to light of each color.
【００２５】
なお上記では反射型液晶パネルとして説明したが、これに限定されるものではなく、透過型の液晶パネルやＤＭＤ（デジタルマイクロミラーデバイス）であってもよい。透過型の液晶パネルは、液晶パネルの後方に、液晶パネルとＲ、Ｇ、Ｂの発光素子を有する基板を重ねるように配置した構成とする。この構成であっても、小型で低コストの照明装置を提供することできる。ＤＭＤを用いた場合、例えば図５に示すような構成において、光源の部分をＲ，Ｇ，Ｂ発光素子を設けた基板に置換すれば、ランプや回転系を削減でき、小型軽量化、低コスト化を実現できるものである。[0025]
Although the above description has been made of the reflective liquid crystal panel, the present invention is not limited to this, and a transmissive liquid crystal panel or a DMD (digital micro mirror device) may be used. The transmissive liquid crystal panel is configured such that a liquid crystal panel and a substrate having light emitting elements of R, G, and B are disposed behind the liquid crystal panel. Even with this configuration, a compact and low-cost lighting device can be provided. When a DMD is used, for example, in the configuration shown in FIG. 5, the lamp and the rotation system can be reduced by replacing the light source portion with a substrate provided with R, G, B light emitting elements, and the size and weight can be reduced. Can be realized.
Claims (8)
前記２つの色の異なる発光素子を、時間軸上で異なる時間帯に発光するように制御する制御手段と、
前記２つの色の異なる発光素子の光の同じ光路に設けら、各色の光に対応した時間帯で、各色に対応する画像を形成するように制御される第1の変調素子と、
を具備したことを特徴とするプロジェクタ用の照明装置。A first substrate on which at least two light emitting elements of different colors are arranged;
Control means for controlling the light emitting elements of two different colors to emit light in different time zones on the time axis;
A first modulation element provided in the same light path of the light of the light emitting elements of two different colors and controlled to form an image corresponding to each color in a time zone corresponding to the light of each color;
An illuminating device for a projector, comprising:
前記第3の色の発光素子の光路に設けられた、第2の変調素子と、
前記第1の変調素子と第2の変調素子からの光を合成して出力する合成プリズムとを具備したことを特徴とする請求項２記載のプロジェクタ用の照明装置。Furthermore, a second substrate on which light emitting elements of a third color are arranged,
A second modulation element provided in the light path of the light emitting element of the third color;
3. A lighting device for a projector according to claim 2, further comprising: a combining prism that combines the light from the first modulation element and the light from the second modulation element and outputs the combined light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35316198A JP3847990B2 (en) | 1998-12-11 | 1998-12-11 | Lighting method and apparatus for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35316198A JP3847990B2 (en) | 1998-12-11 | 1998-12-11 | Lighting method and apparatus for projector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000180823A JP2000180823A (en) | 2000-06-30 |
| JP2000180823A5 true JP2000180823A5 (en) | 2005-02-24 |
| JP3847990B2 JP3847990B2 (en) | 2006-11-22 |
Family
ID=18428982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35316198A Expired - Fee Related JP3847990B2 (en) | 1998-12-11 | 1998-12-11 | Lighting method and apparatus for projector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3847990B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3870807B2 (en) | 2001-12-20 | 2007-01-24 | ソニー株式会社 | Image display device and manufacturing method thereof |
| JP2003228129A (en) * | 2002-02-01 | 2003-08-15 | Nitto Kogaku Kk | Optical engine |
| JP2005189472A (en) * | 2003-12-25 | 2005-07-14 | Olympus Corp | Display unit and lighting device thereof |
| JP2014032299A (en) | 2012-08-03 | 2014-02-20 | Seiko Epson Corp | Projector |
| JP7007804B2 (en) * | 2016-11-28 | 2022-01-25 | シチズンファインデバイス株式会社 | LCD projector |
| FR3068484B1 (en) * | 2017-06-29 | 2019-11-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | COLOR PROJECTOR WITH TWO EMISSIVE SCREENS. |
-
1998
- 1998-12-11 JP JP35316198A patent/JP3847990B2/en not_active Expired - Fee Related
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