JP2000275730A5 - - Google Patents

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Publication number
JP2000275730A5
JP2000275730A5 JP1999083812A JP8381299A JP2000275730A5 JP 2000275730 A5 JP2000275730 A5 JP 2000275730A5 JP 1999083812 A JP1999083812 A JP 1999083812A JP 8381299 A JP8381299 A JP 8381299A JP 2000275730 A5 JP2000275730 A5 JP 2000275730A5
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JP
Japan
Prior art keywords
light
optical
optical element
optical system
display device
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Application number
JP1999083812A
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Japanese (ja)
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JP2000275730A (en
JP4086409B2 (en
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Publication date
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Priority to JP08381299A priority Critical patent/JP4086409B2/en
Priority claimed from JP08381299A external-priority patent/JP4086409B2/en
Publication of JP2000275730A publication Critical patent/JP2000275730A/en
Publication of JP2000275730A5 publication Critical patent/JP2000275730A5/ja
Application granted granted Critical
Publication of JP4086409B2 publication Critical patent/JP4086409B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【特許請求の範囲】
【請求項】 複数の画像表示素子と、
光源からの光を互いに色が異なる複数の光に分離して、各色の光を該複数の画像表示素子の対応する素子に入射させる第1光学系と、
該複数の画像表示素子からの各色の光を合成する第2光学系と、
該第2光学系により合成された各色の光を投影する投影光学系と
を有する投射型表示装置において、
可視領域における所定の領域を通過させ、それ以外の領域を阻止することで前記各色のうちの所定の色の純度を上げる光学素子を所定の光路に対して挿脱可能に配置し、該光学素子を該所定の光路に挿入しない場合は該光学素子を該所定の光路とは異なる光路に挿入することを特徴とする投射型表示装置。
【請求項】 該所定の光路は、該第1光学系における光路であることを特徴とする請求項記載の投射型表示装置。
【請求項】 該光学素子は所定の波長以上の領域を通過させそれ以外の領域を阻止するか、該可視領域において所定の波長以下の領域を通過させそれ以外の領域を阻止する光学素子であることを特徴とする請求項1又は2記載の投射型表示装置。
【請求項】 該光学素子はエッジフイルタまたはバンドカットフイルタであることを特徴とする請求項1乃至3いずれかに記載の投射型表示装置。
【請求項5】 第1、2、3の画像表示素子と、
光源からの光を互いに色が異なる第1、2、3の色光に分離して、前記第1、2、3の色の色光を前記第1、2、3の画像表示素子のうち対応する素子に入射させる第1光学系と、
前記第1、2、3の画像表示素子からの前記第1、2、3の色光を合成する第2光学系と、
該第2光学系により合成された光を投影する投影光学系と
を有する投射型表示装置において、
可視領域における所定の波長領域の光を通過させ、それ以外の波長領域の光を阻止することによって、前記第1の色光の純度を上げる光学素子を前記第1の色光の光路に対して挿脱可能に配置し、該光学素子を前記第1の色光の光路に挿入しない場合は該光学素子を前記第2の色光の光路に挿入することを特徴とする投射型表示装置。
【請求項6】 前記光学素子は、前記第1光学系内に配置されていることを特徴とする請求項5記載の投射型表示装置。
[Claims]
Claim1] With multiple image display elements
A first optical system that separates the light from the light source into a plurality of lights having different colors and causes the light of each color to enter the corresponding elements of the plurality of image display elements.
A second optical system that synthesizes light of each color from the plurality of image display elements, and
With a projection optical system that projects light of each color synthesized by the second optical system
In the projection type display device having
An optical element that increases the purity of a predetermined color among the colors by passing through a predetermined region in the visible region and blocking the other regions is arranged so as to be removable with respect to a predetermined optical path, and the optical element is A projection type display device, characterized in that the optical element is inserted into an optical path different from the predetermined optical path when the optical element is not inserted into the predetermined optical path.
Claim2The present invention is characterized in that the predetermined optical path is an optical path in the first optical system.1The projection type display device described.
Claim3The optical element is characterized by being an optical element that passes through a region of a predetermined wavelength or higher and blocks other regions, or passes through a region of a predetermined wavelength or lower in the visible region and blocks other regions. Claim1 or 2The projection type display device described.
Claim41. The optical element is an edge filter or a band cut filter.To any of 3The projection type display device described.
5. The first, second, and third image display elements and
The light from the light source is separated into the first, second, and third colored lights having different colors, and the colored lights of the first, second, and third colors are separated into the corresponding elements of the first, second, and third image display elements. The first optical system to be incident on
A second optical system that synthesizes the first, second, and third colored lights from the first, second, and third image display elements, and
With a projection optical system that projects the light synthesized by the second optical system
In the projection type display device having
An optical element that increases the purity of the first colored light by passing light in a predetermined wavelength region in the visible region and blocking light in other wavelength regions is inserted and removed from the optical path of the first colored light. A projection-type display device that is arranged so as to be possible and that, when the optical element is not inserted into the optical path of the first colored light, the optical element is inserted into the optical path of the second colored light.
6. The projection type display device according to claim 5, wherein the optical element is arranged in the first optical system.

JP08381299A 1999-03-26 1999-03-26 Projection display Expired - Fee Related JP4086409B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP08381299A JP4086409B2 (en) 1999-03-26 1999-03-26 Projection display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP08381299A JP4086409B2 (en) 1999-03-26 1999-03-26 Projection display

Publications (3)

Publication Number Publication Date
JP2000275730A JP2000275730A (en) 2000-10-06
JP2000275730A5 true JP2000275730A5 (en) 2006-05-18
JP4086409B2 JP4086409B2 (en) 2008-05-14

Family

ID=13813100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP08381299A Expired - Fee Related JP4086409B2 (en) 1999-03-26 1999-03-26 Projection display

Country Status (1)

Country Link
JP (1) JP4086409B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6919992B2 (en) 2001-10-01 2005-07-19 Canon Kabushiki Kaisha Color separating-combining optical system, image display optical system, and projection image display apparatus
JP6465594B2 (en) 2014-09-03 2019-02-06 キヤノン株式会社 Color separation / synthesis system and projection display device using the same
JP6597162B2 (en) * 2015-10-16 2019-10-30 セイコーエプソン株式会社 projector
JP6673109B2 (en) * 2016-09-13 2020-03-25 株式会社Jvcケンウッド Projection type image display device
CN109814325A (en) * 2019-02-27 2019-05-28 深圳彩翼光电科技有限公司 A kind of double-display screen illumination optical system

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