Injection mold for forming free-form surface optical element, free-form surface optical element and free-form surface mirror formed by employing the injection mold
    1.
    发明申请
    Injection mold for forming free-form surface optical element, free-form surface optical element and free-form surface mirror formed by employing the injection mold 审中-公开
    用于形成自由形式表面光学元件的注射模具,自由形式的表面光学元件和通过使用注射模具形成的自由形式的表面镜

    公开(公告)号:US20070009629A1

    公开(公告)日:2007-01-11

    申请号:US11477218

    申请日:2006-06-29

    IPC分类号: B29D11/00

    摘要: The present invention provides an injection mold for forming free-form surface optical element that is possible to produce with high accuracy at low cost a free-form surface optical element that has a stable relation between the free-form surface and the mounting reference surface and is easy to adjust when mounting. The mold comprises a fixed mold and a movable mold for forming a free-form surface (effective area 21) and a rear surface opposite to the free-form surface. The fixed mold and the movable mold are divided by a parting line PL along the peripheral end surface of the free-form surface optical element 14. A mold surface for molding the free-form surface (effective area 21) and a mold surface for molding axial-direction mounting reference surfaces 28a-28c for mounting the free-form surface optical element in a direction substantially perpendicular to the free-form surface are positioned in the mold on the same side with respect to the parting line PL.

    摘要翻译: 本发明提供一种用于形成自由曲面光学元件的注射模具,其能够以低成本高精度地制造自由曲面光学元件,该自由曲面光学元件在自由曲面与安装基准表面之间具有稳定的关系, 安装时易于调节。 模具包括固定模具和用于形成自由曲面(有效区域21)和与自由曲面相对的后表面的活动模具。 固定模具和可动模具沿着自由曲面光学元件14的周边端面由分型线PL分割。用于模制自由曲面(有效区域21)的模具表面和用于成型的模具表面 用于将自由曲面光学元件安装在基本上垂直于自由曲面的方向上的轴向安装基准表面28a-28c相对于分型线PL位于模具中。

    Projection optical system unit and projection-type image display apparatus using the same
    2.
    发明申请
    Projection optical system unit and projection-type image display apparatus using the same 有权
    投影光学系统单元和投影型图像显示装置

    公开(公告)号:US20060262284A1

    公开(公告)日:2006-11-23

    申请号:US11244546

    申请日:2005-10-06

    IPC分类号: G03B21/28

    摘要: A projection optical system unit has a lower pedestal. The lower pedestal has first and second tubular portions opened to each other. An image formation device holding plate for a DMD is mounted on the first tubular portion at a side where one opening is formed. A mirror holder for a convex mirror is fixed on the second tubular portion at a side where the other opening is formed. A linear heat expansion coefficient in a specific direction of the lower pedestal component is set between 0.8×10−5 (1/K) and 3.0×10−5 (1/K).

    摘要翻译: 投影光学系统单元具有下基座。 下基座具有彼此敞开的第一和第二管状部分。 用于DMD的图像形成装置保持板安装在形成有一个开口的一侧的第一管状部分上。 用于凸面镜的反射镜保持器固定在形成另一个开口的一侧的第二管状部分上。 在下基座部件的特定方向上的线性热膨胀系数设定在0.8×10 -5(1 / K)至3.0×10 -5(1 / K) 。

    Projection type image display apparatus
    3.
    发明申请
    Projection type image display apparatus 失效
    投影型图像显示装置

    公开(公告)号:US20060221306A1

    公开(公告)日:2006-10-05

    申请号:US11384645

    申请日:2006-03-20

    IPC分类号: G03B21/22

    CPC分类号: G03B21/10 G03B21/20 G03B21/28

    摘要: A projection type image display apparatus has: an illumination optical system generating illumination light; a projection optical system projecting an image light onto a screen; a digital micromirror device (DMD) modulating the illumination light so as to form the image light; and a reflection mirror arranged in a position opposite to an optical path of the illumination light entering the DMD. The reflection mirror reflects an off-light reflected by the DMD in an “OFF” state in a direction separated from a projection light reflected by the DMD in an “ON” state.

    摘要翻译: 投影型图像显示装置具有:产生照明光的照明光学系统; 投影光学系统将图像光投射到屏幕上; 调制照明光以形成图像光的数字微镜器件(DMD); 以及配置在与进入DMD的照明光的光路相反的位置的反射镜。 反射镜反射由与DMD反射的投影光分离的“ON”状态的“OFF”状态的DMD反射的偏光。

    Projection optical system unit and projection-type image display apparatus using the same
    4.
    发明授权
    Projection optical system unit and projection-type image display apparatus using the same 有权
    投影光学系统单元和投影型图像显示装置

    公开(公告)号:US07360906B2

    公开(公告)日:2008-04-22

    申请号:US11244546

    申请日:2005-10-06

    摘要: A projection optical system unit has a lower pedestal. The lower pedestal has first and second tubular portions opened to each other. An image formation device holding plate for a DMD is mounted on the first tubular portion at a side where one opening is formed. A mirror holder for a convex mirror is fixed on the second tubular portion at a side where the other opening is formed. A linear heat expansion coefficient in a specific direction of the lower pedestal component is set between 0.8×10−5 (1/K) and 3.0×10−5 (1/K).

    摘要翻译: 投影光学系统单元具有下基座。 下基座具有彼此敞开的第一和第二管状部分。 用于DMD的图像形成装置保持板安装在形成有一个开口的一侧的第一管状部分上。 用于凸面镜的反射镜保持器固定在形成另一个开口的一侧的第二管状部分上。 在下基座部件的特定方向上的线性热膨胀系数设定在0.8×10 -5(1 / K)至3.0×10 -5(1 / K) 。

    Projection type image display apparatus
    5.
    发明授权
    Projection type image display apparatus 有权
    投影型图像显示装置

    公开(公告)号:US09010944B2

    公开(公告)日:2015-04-21

    申请号:US12922657

    申请日:2009-03-17

    IPC分类号: G03B21/14 G03B21/00 H04N9/31

    摘要: A projection type image display apparatus (1) comprises a focus correction system (30). The system includes a temperature detection mechanism (16) for measuring temperature in the vicinity of a projection lens group (13), a correction amount calculation unit (18) for calculating a correction amount for correcting the focus shift caused by a temperature change, and a driving signal generation unit (19) for generating, based on the correction amount, a driving signal for driving a focus adjustment mechanism (15). If the user performs a focus adjustment using a focus operation input unit (23), a focus operation determination unit (21) determines that a focus adjustment has occurred independently of the focus correction system and changes a correction condition stored in a memory (20).

    摘要翻译: 投影型图像显示装置(1)包括聚焦校正系统(30)。 该系统包括用于测量投影透镜组(13)附近的温度的温度检测机构(16),用于计算用于校正由温度变化引起的聚焦偏移的校正量的校正量计算单元(18),以及 驱动信号生成单元(19),用于基于校正量生成用于驱动聚焦调节机构(15)的驱动信号。 如果用户使用聚焦操作输入单元(23)进行焦点调整,则聚焦操作确定单元(21)确定焦点调整发生独立于聚焦校正系统,并且改变存储在存储器(20)中的校正条件, 。

    Projection lens unit
    6.
    发明申请
    Projection lens unit 有权
    投影镜头单元

    公开(公告)号:US20070236810A1

    公开(公告)日:2007-10-11

    申请号:US11728120

    申请日:2007-03-23

    IPC分类号: G02B9/08

    CPC分类号: G02B7/028 G02B7/023 G02B13/22

    摘要: A projection lens system 1A enlarges and projects onto a screen 8, via a plurality of lenses G1 to G16, image light emitted from, a light source 4 and modulated by DMDs 3r to 3b. A movable lens barrel 25 holds the lens G16, having positive power, which is positioned closest to the DMDs 3r to 3b. An outer tube 24 holds the movable lens barrel 25 to enable movement in the optical axis direction. Through thermal deformation at the time of an increase in temperature, the bimetal member 27 moves the movable lens barrel 25 in the optical axis direction so as to recede from the image formation devices which are the DMDs 3r to 3b.

    摘要翻译: 投影透镜系统1A经由多个透镜G 1至G 16放大并投射到屏幕8上,从光源4发射并由DMD 3至3B调制的图像光。 可移动镜筒25保持具有正功率的透镜G 16,其位于最接近DMD 3至3B的位置。 外管24保持可动透镜镜筒25,以能够在光轴方向上移动。 通过在温度升高时的热变形,双金属构件27使可动镜筒25在光轴方向上移动,以便从作为DMD 3〜3b的图像形成装置后退。

    PROJECTION TYPE IMAGE DISPLAY APPARATUS
    7.
    发明申请
    PROJECTION TYPE IMAGE DISPLAY APPARATUS 有权
    投影类型图像显示设备

    公开(公告)号:US20110019109A1

    公开(公告)日:2011-01-27

    申请号:US12922657

    申请日:2009-03-17

    IPC分类号: H04N3/26

    摘要: A projection type image display apparatus (1) comprises a focus correction system (30). The system includes a temperature detection mechanism (16) for measuring temperature in the vicinity of a projection lens group (13), a correction amount calculation unit (18) for calculating a correction amount for correcting the focus shift caused by a temperature change, and a driving signal generation unit (19) for generating, based on the correction amount, a driving signal for driving a focus adjustment mechanism (15). If the user performs a focus adjustment using a focus operation input unit (23), a focus operation determination unit (21) determines that a focus adjustment has occurred independently of the focus correction system and changes a correction condition stored in a memory (20).

    摘要翻译: 投影型图像显示装置(1)包括聚焦校正系统(30)。 该系统包括用于测量投影透镜组(13)附近的温度的温度检测机构(16),用于计算用于校正由温度变化引起的聚焦偏移的校正量的校正量计算单元(18),以及 驱动信号生成单元(19),用于基于校正量生成用于驱动聚焦调节机构(15)的驱动信号。 如果用户使用聚焦操作输入单元(23)进行焦点调整,则聚焦操作确定单元(21)确定焦点调整发生独立于聚焦校正系统,并且改变存储在存储器(20)中的校正条件, 。

    Projection lens unit
    8.
    发明授权
    Projection lens unit 有权
    投影镜头单元

    公开(公告)号:US07612951B2

    公开(公告)日:2009-11-03

    申请号:US11728120

    申请日:2007-03-23

    IPC分类号: G02B7/02

    CPC分类号: G02B7/028 G02B7/023 G02B13/22

    摘要: A projection lens system 1A enlarges and projects onto a screen 8, via a plurality of lenses G1 to G16, image light emitted from, a light source 4 and modulated by DMDs 3r to 3b. A movable lens barrel 25 holds the lens G16, having positive power, which is positioned closest to the DMDs 3r to 3b. An outer tube 24 holds the movable lens barrel 25 to enable movement in the optical axis direction. Through thermal deformation at the time of an increase in temperature, the bimetal member 27 moves the movable lens barrel 25 in the optical axis direction so as to recede from the image formation devices which are the DMDs 3r to 3b.

    摘要翻译: 投影透镜系统1A经由多个透镜G1〜G16,从屏幕8放大并投射到从光源4发射并由DMD 3r〜3b调制的图像光。 可移动镜筒25保持具有正功率的透镜G16,其最靠近DMD 3r至3b定位。 外管24保持可动透镜镜筒25,以能够在光轴方向上移动。 通过在温度升高时的热变形,双金属构件27使可动镜筒25在光轴方向上移动,以便从作为DMD 3r至3b的图像形成装置后退。

    Variable-focal-length projection lens system and projection apparatus
    9.
    发明授权
    Variable-focal-length projection lens system and projection apparatus 有权
    可变焦距投影透镜系统和投影仪

    公开(公告)号:US08699139B2

    公开(公告)日:2014-04-15

    申请号:US13483987

    申请日:2012-05-30

    IPC分类号: G02B9/00 G02B15/14 G02B13/16

    CPC分类号: G02B13/16 G02B15/14

    摘要: A variable-focal-length lens system for projection which achieves focusing by movement of the entire system has a second to a fourth lens group as focal-length-varying lens groups and a first lens group as a distance-compensation lens group. The second to fourth lens groups individually move in the optical axis direction to vary the group-to-group distances so as to vary the focal length of the entire system. During focusing, the first lens group moves in the optical axis direction such that, as the projection distance varies from a remote distance to a close distance, curvature of field varies to the under side.

    摘要翻译: 通过整个系统的移动实现聚焦的可变焦距透镜系统具有作为焦距变化透镜组的第二至第四透镜组和作为距离补偿透镜组的第一透镜组。 第二至第四透镜组在光轴方向上分别移动以改变组与组的距离,从而改变整个系统的焦距。 在聚焦期间,第一透镜组沿光轴方向移动,使得当投射距离从远距离变化到近距离时,曲率变化到下侧。