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    • 8. 发明申请
    • OPTICAL UNIT AND PROJECTOR APPARATUS
    • 光学单元和投影仪设备
    • US20100073645A1
    • 2010-03-25
    • US12628253
    • 2009-12-01
    • Takashi KUBOTAKatumi Muramatu
    • Takashi KUBOTAKatumi Muramatu
    • G03B21/14G02B7/00
    • G03B21/14G02B7/006G02B27/1006G03B21/2066G03B21/2073G03B33/12
    • An optical unit includes a frame; an optical member having a rectangular plate-shape; and a pair of mount portions formed in the frame, each holding a side of the optical member. Each of the mount portions includes an insertion slot into which an end of the optical member in the width direction is inserted. The insertion slot is formed between first and second walls of the frame. The first wall includes a thickness direction positioning surface that is in contact with one of the surfaces of the optical member in a thickness direction. The second wall includes an inclined surface. The optical member is fixed to the frame using an adhesive in a state in which the one of the surfaces of the optical member is pressed against the thickness direction positioning surface and an end of the optical member in the height direction is pressed against the inclined surface.
    • 光学单元包括框架; 具有矩形板状的光学构件; 以及形成在框架中的一对安装部分,每个安装部分保持光学构件的一侧。 每个安装部分包括一个插入槽,光学构件在宽度方向上的一端插入其中。 插入槽形成在框架的第一和第二壁之间。 第一壁包括在厚度方向上与光学构件的一个表面接触的厚度方向定位表面。 第二壁包括倾斜表面。 光学构件在光学构件的一个表面压靠厚度方向定位表面的状态下使用粘合剂固定到框架,并且光学构件的在高度方向上的端部被压靠在倾斜表面上 。
    • 9. 发明申请
    • REFLEX, MAGNIFYING OPTICAL SYSTEM
    • REFLEX,MAGNIFYING OPTICAL SYSTEM
    • US20090225438A1
    • 2009-09-10
    • US12397586
    • 2009-03-04
    • Takashi KUBOTA
    • Takashi KUBOTA
    • G02B15/14
    • G02B15/177G02B17/0896
    • A first lens group in a reflex, magnifying optical system includes sequentially from the side of an object, a first lens that has a negative refractive power and is a meniscus lens having a concave aspect facing toward an image, an optical element (prism) that refracts an optical path, a second lens having a negative refractive power and a concave aspect facing toward the object, and a third lens having a positive refractive power. A portion of an image-side aspect of the first lens abuts a plane of incidence of the optical element. A portion of an object-side aspect of the second lens abuts a plane of transmission of the optical element.
    • 反射放大光学系统中的第一透镜组从物体侧依次包括具有负屈光力的第一透镜,并且是具有朝向图像的凹面的弯月形透镜;光学元件(棱镜),其 折射光路,具有负折射力的第二透镜和朝向物体的凹面,以及具有正折光力的第三透镜。 第一透镜的图像侧部分的一部分抵接光学元件的入射平面。 第二透镜的物体侧部分的一部分抵靠光学元件的透射平面。