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    • 2. 发明授权
    • Light source and projector
    • 光源和投影机
    • US07111962B2
    • 2006-09-26
    • US10806173
    • 2004-03-23
    • Hiroyuki MeguroTakeshi TakezawaMasakazu KitamuraMotoyuki FujimoriKoichi Akiyama
    • Hiroyuki MeguroTakeshi TakezawaMasakazu KitamuraMotoyuki FujimoriKoichi Akiyama
    • F21V7/20F21V7/00
    • G03B21/16G03B21/2026
    • A light source that prevents broken pieces from dispersing to the outside without increasing the number of components while efficiently cooling a light-emitting tube is provided. The light source (10) has: a light-emitting tube (11) having a light-emitting portion (111) where light beam is emitted by electric discharge between electrodes and a sealing portion (112) provided on both sides of the light-emitting portion (111); a reflector (12) that reflects the light beam emitted by the light-emitting tube (11) forward after aligning in a predetermined direction; a cover (16) covering a light-irradiation opening of the reflector (12) and having an opening for irradiating the light beam reflected by the reflector (12), the cover having a heat-radiation fin (162) on the outside thereof and being made of a heat-conductive material to absorb the heat from the light-emitting tube (11), the absorbed heat being conducted to the heat-radiation fin (162); and a transparent member (14) that covers the opening of the cover (16).
    • 提供了一种防止碎片分散到外部而不增加部件数量同时有效地冷却发光管的光源。 光源(10)具有:具有发光部(111)的发光管(11),其中通过电极间的放电发射光束,设置在发光部的两侧的密封部(112) 发射部分(111); 反射器(12),其在沿预定方向对准之后向前反射由所述发光管(11)发射的光束; 覆盖所述反射器(12)的光照射开口并且具有用于照射由所述反射器(12)反射的光束的开口的盖(16),所述盖在其外侧具有散热翅片(162),并且 由导热材料制成,以吸收来自发光管(11)的热量,所吸收的热量传导到散热片(162); 以及覆盖盖(16)的开口的透明构件(14)。
    • 7. 发明授权
    • Projector
    • 投影机
    • US06702443B2
    • 2004-03-09
    • US10334012
    • 2002-12-31
    • Takeshi TakezawaToshiaki HashizumeMotoyuki Fujimori
    • Takeshi TakezawaToshiaki HashizumeMotoyuki Fujimori
    • G03B2114
    • G02B27/149G02B27/145G03B21/005
    • A technique capable of easily manufacturing a projector without deteriorating too much the optical characteristics of the projector. A projector includes an illuminating optical system for emitting illumination light, an electro-optical device for modulating light from the illuminating optical system according to image information, and a projection optical system for projecting a modulated light beam flux obtained by the electro-optical device. The electro-optical device includes a single-crystal sapphire substrate having nearly a rectangular shape, and a polarizer provided on the single-crystal sapphire substrate on at least one side of a light incidence surface and a light emission surface. The single-crystal sapphire substrate includes a c-axis substantially parallel to the surface of the substrate, and the c-axis has an inclination of about 3° to about 7° with respect to a reference side selected from perpendicularly intersecting two sides of the nearly rectangular shape.
    • 一种能够容易地制造投影仪而不会劣化投影仪的光学特性的技术。 一种投影仪,包括:照明光学系统,用于发射照明光;电光装置,用于根据图像信息调制来自照明光学系统的光;以及投影光学系统,用于投影由电光装置获得的调制光束。 电光装置包括具有近似矩形形状的单晶蓝宝石基板和在光入射面和发光面的至少一侧的单晶蓝宝石基板上设置的偏振片。 单晶蓝宝石衬底包括基本上平行于衬底的表面的c轴,并且c轴相对于参考侧具有大约3°至大约7°的倾斜度,所述参考侧选自两侧的垂直相交的两侧 近似矩形。
    • 8. 发明授权
    • Projector
    • 投影机
    • US06536906B2
    • 2003-03-25
    • US09983800
    • 2001-10-25
    • Motoyuki FujimoriTakeshi TakezawaHisamaro Kato
    • Motoyuki FujimoriTakeshi TakezawaHisamaro Kato
    • G03B2114
    • G03B21/26G03B21/18
    • The present invention provides a technology for mounting a prism which is used for a projector, such as a crossed dichroic prism, accurately in a predetermined position of a base frame. A projector for displaying color images can include an illumination optical system, a colored-light-separating optical system for separating light emitted from the illumination optical system into first, second, and third colored light which are three color components, first, second, and third electro-optical devices which modulate the first, second, and third colored light, respectively, according to image data, and produce first, second, and third modulated light, respectively. The projector can further include a colored-light-combining optical system for combining the first, second, and third modulated light, a projection optical system for projecting the combined light emitted from the colored-light-combining optical system, and a base frame for mounting a plurality of optical parts which are disposed in a light path between the illumination optical system and the projection optical system. The colored-light-combining optical system can be a crossed dichroic prism bonded directly to the base frame.
    • 本发明提供了一种用于在基架的预定位置精确地安装用于诸如交叉二向色棱镜的投影仪的棱镜的技术。 用于显示彩色图像的投影仪可以包括照明光学系统,用于将从照明光学系统发射的光分离为第一,第二和第三着色光的彩色光分离光学系统,其为三色成分,第一,第二和第 第三电光装置,其分别根据图像数据调制第一,第二和第三着色光,并分别产生第一,第二和第三调制光。 投影仪还可以包括用于组合第一,第二和第三调制光的彩色光组合光学系统,用于投射从彩色光合成光学系统发射的组合光的投影光学系统和用于 安装设置在照明光学系统和投影光学系统之间的光路中的多个光学部件。 彩色光组合光学系统可以是直接结合到基架的交叉二向色棱镜。
    • 9. 发明授权
    • Projector
    • 投影机
    • US06935753B2
    • 2005-08-30
    • US10399677
    • 2002-01-15
    • Takeshi TakezawaToshiaki HashizumeMotoyuki FujimoriYoshiyuki Yanagisawa
    • Takeshi TakezawaToshiaki HashizumeMotoyuki FujimoriYoshiyuki Yanagisawa
    • G02B7/00G02B27/28G03B21/14G03B21/16G03B21/20H04N9/31G03B21/00
    • G02B7/008G02B27/283G03B21/145G03B21/16G03B21/2073H04N9/3105H04N9/3144
    • This invention provides a technique of reducing temperature rise due to heat generation of polarization control elements. A projector includes: an illumination optical system; an electro-optical device for modulating light from the illumination optical system in response to image information; a projection optical system for projecting modulated light obtained with the electro-optical device and a base frame, formed using material including metal material, for mounting a plurality of optical components arranged on an optical path from the illumination optical system to the projection optical system. At least one of the plurality of optical components is a polarization control component that includes: a polarization control element including organic material for the controlling polarization state of light exiting from the polarization control element; and a light-transmissive member having a thermal conductivity of at least about 0.8 W/(m·K), to which the polarization control element is stuck. The light-transmissive member and the base frame are thermally coupled.
    • 本发明提供一种降低由于偏振控制元件的发热引起的温升的技术。 投影机包括:照明光学系统; 用于响应于图像信息调制来自照明光学系统的光的电光装置; 用于投射由电光装置获得的调制光的投影光学系统和使用包括金属材料的材料形成的基架,用于安装布置在从照明光学系统到投影光学系统的光路上的多个光学部件。 多个光学部件中的至少一个是偏振控制部件,其包括:偏振控制元件,包括用于控制从偏振控制元件出射的光的偏振状态的有机材料; 以及具有至少约0.8W /(m.K)的热导率的透光构件,偏振控制元件被卡住。 透光构件和基架被热耦合。