JP2010145451A5 - - Google Patents

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JP2010145451A5
JP2010145451A5 JP2008319280A JP2008319280A JP2010145451A5 JP 2010145451 A5 JP2010145451 A5 JP 2010145451A5 JP 2008319280 A JP2008319280 A JP 2008319280A JP 2008319280 A JP2008319280 A JP 2008319280A JP 2010145451 A5 JP2010145451 A5 JP 2010145451A5
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light
optical system
optical axis
image projection
incident
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JP2008319280A
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JP2010145451A (en
JP5473310B2 (en
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なお、図1は、画像投射装置100をその長手方向が上下に延びる(第2のミラー3が上側に、光源ランプ1が下側に配置される)縦置き状態(第2の設置状態)で使用される様子を示している。この場合、図示はしないが、排気ファン6からの排気をスムーズに行わせるためのラック等の設置台を使用したり、排気ファン6からの排気を側方に導くダクトを設けたりするとよい。 Note that FIG. 1 illustrates the image projection apparatus 100 in a vertically installed state (second installation state) in which the longitudinal direction extends vertically (the second mirror 3 is disposed on the upper side and the light source lamp 1 is disposed on the lower side ) . It shows how it is used. In this case, although not shown, it is preferable to use an installation table such as a rack for smoothly exhausting the exhaust from the exhaust fan 6 or to provide a duct for guiding the exhaust from the exhaust fan 6 to the side.

図4には、図1に示す画像投射装置100がその長手方向が左右に延びる横置き状態(第1の設置状態)で使用される様子を示す。 FIG. 4 shows a state in which the image projection apparatus 100 shown in FIG. 1 is used in a horizontal state (first installation state) in which the longitudinal direction extends left and right.

Claims (7)

入射した光を画像変調する複数の光変調素子と、
光源ランプからの光を複数の光束に分割し、前記複数の光束を前記各光変調素子上で重ね合わせる照明光学系と、
前記照明光学系からの光を複数の色光に分解して前記複数の色光を前記複数の光変調素子に導き、前記複数の光変調素子にて変調された前記複数の色光を合成する色分解合成光学系と、
前記色分解合成光学系にて合成された光を被投射面に投射する投射レンズと、
前記光源ランプからの光を前記照明光学系に向けて反射する第1の反射部材と、
前記投射レンズからの光を前記被投射面に向けて反射する第2の反射部材とを有し、
前記照明光学系から前記色分解合成光学系への入射光軸と前記色分解合成光学系から前記投射レンズへの射出光軸の延長線とが互いに離間した位置にて互いに平行に延び、
前記射出光軸の延長線上に、前記光源ランプの少なくとも一部が配置され、
前記光源ランプから前記第1の反射部材への光の入射方向と前記第2の反射部材から前記被投射面への光の射出方向とが互いに平行であることを特徴とする画像投射用光学系。
A plurality of light modulation elements for image-modulating incident light;
The light from the light source lamp into a plurality of light beams, an illumination optical system for superimposing said plurality of light beams on said each light modulator element,
Color combining synthesizing the light from the illumination optical system is decomposed into a plurality of color light guiding said plurality of color lights to the plurality of light modulator elements, said plurality of color light modulated by the plurality of light modulator elements Optical system,
A projection lens for projecting the light synthesized by the color separating and synthesizing optical system onto a projection surface,
A first reflecting member that reflects light from the light source lamp toward the illumination optical system;
A second reflecting member that reflects light from the projection lens toward the projection surface;
An incident optical axis from the illumination optical system to the color separation / synthesis optical system and an extension line of an emission optical axis from the color separation / synthesis optical system to the projection lens extend in parallel with each other at positions spaced apart from each other,
At least a part of the light source lamp is disposed on an extension line of the emission optical axis,
An image projection optical system, wherein an incident direction of light from the light source lamp to the first reflecting member and an emitting direction of light from the second reflecting member to the projection surface are parallel to each other. .
前記光源ランプからの光の射出方向が、前記入射光軸に対して直交する方向であることを特徴とする請求項1に記載の画像投射用光学系。   The image projection optical system according to claim 1, wherein an emission direction of light from the light source lamp is a direction orthogonal to the incident optical axis. 前記光源ランプを冷却するファンが、前記ファンの回転軸が前記入射光軸と前記射出光軸に対して平行となるように配置されていることを特徴とする請求項2に記載の画像投射用光学系。 3. The image projection device according to claim 2, wherein the fan for cooling the light source lamp is disposed so that a rotation axis of the fan is parallel to the incident optical axis and the emission optical axis. Optical system. 請求項1から3のいずれか1つに記載の画像投射用光学系と、
前記画像投射用光学系を収容する筐体とを有することを特徴とする画像投射装置。
An optical system for image projection according to any one of claims 1 to 3,
An image projecting apparatus comprising: a housing for housing the image projecting optical system.
前記筐体の内部における前記光源ランプと前記第2の反射部材との間に、電源ユニットが前記入射光軸と前記射出光軸に対して平行に、かつ前記筐体と前記色分解合成光学系および前記投射レンズのうち少なくとも一方に沿うように配置されていることを特徴とする請求項4に記載の画像投射装置。 Wherein between the light source lamp inside the housing second reflecting member, in parallel power supply unit with respect to the emission optical axis and the incident optical axis, and the color separating and synthesizing optical system and the housing The image projection device according to claim 4, wherein the image projection device is disposed along at least one of the projection lenses. 前記筐体が、前記入射光軸と前記射出光軸の方向を長手方向とする四角柱形状を有することを特徴とする請求項4又は5に記載の画像投射装置。   The image projection apparatus according to claim 4, wherein the casing has a quadrangular prism shape whose longitudinal direction is the direction of the incident optical axis and the outgoing optical axis. 前記入射光軸および前記射出光軸が水平方向に延びる第1の設置状態と、前記入射光軸および前記射出光軸が重力方向に延びる第2の設置状態において、画像投射が可能であることを特徴とする請求項4から6のいずれか1項に記載の画像投射装置。Image projection is possible in the first installation state in which the incident optical axis and the emission optical axis extend in the horizontal direction and in the second installation state in which the incident optical axis and the emission optical axis extend in the gravity direction. The image projection apparatus according to claim 4, wherein the image projection apparatus is characterized in that
JP2008319280A 2008-12-16 2008-12-16 Image projection device Expired - Fee Related JP5473310B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008319280A JP5473310B2 (en) 2008-12-16 2008-12-16 Image projection device

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Application Number Priority Date Filing Date Title
JP2008319280A JP5473310B2 (en) 2008-12-16 2008-12-16 Image projection device

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JP2010145451A JP2010145451A (en) 2010-07-01
JP2010145451A5 true JP2010145451A5 (en) 2012-01-26
JP5473310B2 JP5473310B2 (en) 2014-04-16

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Family Cites Families (14)

* Cited by examiner, † Cited by third party
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JPH0715537B2 (en) * 1985-12-05 1995-02-22 セイコーエプソン株式会社 Projection display device
JPH0627976B2 (en) * 1989-10-19 1994-04-13 川崎重工業株式会社 LCD image projection device
JPH05165097A (en) * 1991-12-17 1993-06-29 Mitsubishi Electric Corp Projection type display device
JP2003029210A (en) * 2001-07-13 2003-01-29 Nikon Corp Rear face projection type display device
JP4029596B2 (en) * 2001-10-22 2008-01-09 セイコーエプソン株式会社 Light source device and projector
JP2003156796A (en) * 2001-11-20 2003-05-30 Fuji Photo Optical Co Ltd Cooling fan integrated type rotary optical filter device and illumination optical system
JP4030325B2 (en) * 2002-03-11 2008-01-09 三洋電機株式会社 Projection display device
JP4002776B2 (en) * 2002-03-19 2007-11-07 オリンパス株式会社 Projection display device
JP2004053976A (en) * 2002-07-22 2004-02-19 Matsushita Electric Ind Co Ltd Projection type video projector
JP2006301328A (en) * 2005-04-21 2006-11-02 Ricoh Co Ltd Image forming apparatus
JP4420857B2 (en) * 2005-06-06 2010-02-24 三洋電機株式会社 Projection display
JP2008102168A (en) * 2006-10-17 2008-05-01 Seiko Epson Corp Projector
JP2008249953A (en) * 2007-03-30 2008-10-16 Nikon Corp Projector device
JP4945314B2 (en) * 2007-05-23 2012-06-06 三洋電機株式会社 Projection display

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