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    • 3. 发明申请
    • PROJECTION OPTICAL SYSTEM AND IMAGE DISPLAY APPARATUS
    • 投影光学系统和图像显示设备
    • US20150138625A1
    • 2015-05-21
    • US14607709
    • 2015-01-28
    • Hibiki TATSUNO
    • Hibiki TATSUNO
    • G02B17/08G02B27/00G02B26/08G02B13/16
    • G02B17/08G02B13/16G02B26/0833G02B27/0006G03B21/2066G03B21/28
    • A projection optical system for use in an image display apparatus having an illumination optical system applying light from a light source, and an image display device receiving the light from the illumination optical system to form a projection image includes a projector lens composed of plural lenses, a first mirror, and a second mirror formed of a concave mirror. The projection optical system is configured to project the projection image onto a projection surface. A projection luminous flux passing through the projector lens to be incident on the first mirror is a luminous flux exhibiting divergence. The projection luminous flux reflected off the second mirror after having reflected off the first mirror is converged once, and the once converged projection luminous flux is projected onto the projection surface. A lens surface of a lens located closest to the first mirror among the lenses of the projector lens is convex.
    • 一种用于具有从光源施加光的照明光学系统的图像显示装置的投影光学系统和接收来自照明光学系统的光以形成投影图像的图像显示装置包括由多个透镜构成的投影透镜, 第一反射镜和由凹面镜形成的第二反射镜。 投影光学系统被配置为将投影图像投影到投影表面上。 入射到第一反射镜上的通过投影透镜的投影光束是表现出发散的光束。 在从第一反射镜反射出的第二反射镜反射的投影光束被会聚一次,并且将一次会聚的投影光束投影到投影面上。 在投影透镜的透镜中位于最靠近第一反射镜的透镜的透镜表面是凸的。
    • 6. 发明申请
    • PROJECTION OPTICAL SYSTEM AND IMAGE PROJECTION DEVICE
    • 投影光学系统和图像投影设备
    • US20120162753A1
    • 2012-06-28
    • US13312264
    • 2011-12-06
    • Hibiki TATSUNO
    • Hibiki TATSUNO
    • G02B17/08
    • G02B17/0816G02B17/08G03B21/147G03B21/28
    • A projection optical system for projecting an image on a surface is provided. The image is an enlarged image of an image which is formed on an image forming element. The projection optical system includes a coaxial optical system having an optical axis; and a non-coaxial optical system including a rotationally asymmetric curved-surface mirror. The non-coaxial optical system does not share the optical axis with the coaxial optical system. The coaxial optical system includes a first lens having a positive refractive power and being an aspheric plastic lens; and a second lens having a negative refractive power and being an aspheric plastic lens. The first lens has a first refractive index distribution, and the second lens has a second refractive index distribution.
    • 提供了用于将图像投影在表面上的投影光学系统。 图像是形成在图像形成元件上的图像的放大图像。 投影光学系统包括具有光轴的同轴光学系统; 以及包括旋转非对称的曲面镜的非同轴光学系统。 非同轴光学系统不与同轴光学系统共享光轴。 同轴光学系统包括具有正屈光力的第一透镜,并且是非球面塑料透镜; 和具有负屈光力的第二透镜,并且是非球面塑料透镜。 第一透镜具有第一折射率分布,并且第二透镜具有第二折射率分布。
    • 9. 发明申请
    • IMAGE PROJECTOR HAVING AN OPTICAL PROJECTION SYSTEM WITH INDEPENDENTLY FOCUSING LENS
    • 具有独立聚焦镜头的光学投影系统的图像投影仪
    • US20140218699A1
    • 2014-08-07
    • US14249962
    • 2014-04-10
    • Hibiki TATSUNO
    • Hibiki TATSUNO
    • G02B17/08G03B21/28G03B21/14
    • G02B17/08G03B21/142G03B21/147G03B21/2066G03B21/28
    • An optical projection system for projecting an enlarged image on a projection surface is provided. The optical projection system includes an image forming element, a coaxial optical system and a concave mirror. The coaxial optical system and the concave mirror are arranged in this order on an optical path from the image forming element to the projection surface. The coaxial optical system includes lens groups and an aperture stop that share an optical axis. The lens groups include a first lens group and other lens groups. The first lens group has negative refractive power and independently moves in an optical axis direction for adjusting the focus of the optical projection system. The aperture stop is arranged at a position closer to the image forming element than the first lens group that is arranged closest to the concave mirror among the lens groups having the negative refractive power.
    • 提供了一种用于将放大图像投影在投影表面上的光学投影系统。 光学投影系统包括图像形成元件,同轴光学系统和凹面镜。 同轴光学系统和凹面镜按照从图像形成元件到投影面的光路依次排列。 同轴光学系统包括透镜组和共享光轴的孔径光阑。 透镜组包括第一透镜组和其它透镜组。 第一透镜组具有负折光力,并且在光轴方向上独立地移动以调节光学投影系统的焦点。 孔径光阑布置在比具有负屈光力的透镜组中最靠近凹面镜布置的第一透镜组更靠近图像形成元件的位置。
    • 10. 发明申请
    • PROJECTION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS
    • 投影光学系统和图像投影设备
    • US20140146295A1
    • 2014-05-29
    • US14089126
    • 2013-11-25
    • Hibiki TATSUNO
    • Hibiki TATSUNO
    • G03B21/28
    • G03B21/28G02B13/16G02B17/08G02B21/28G03B21/147
    • Disclosed is a projection optical system, including a first lens group configured to include at least one lens and have a positive refractive power, a second lens group configured to include at least one lens and have a positive refractive power, a third lens group configured to include at least one lens and have a negative refractive power, a fourth lens group configured to include at least one lens configured to have an aspheric surface or a free-form surface, and a concave mirror, wherein the first lens group, the second lens group, the third lens group, the fourth lens group, and the concave mirror are arranged in order and the projection optical system is a non-telecentric optical system.
    • 公开了一种投影光学系统,包括被配置为包括至少一个透镜并且具有正折光力的第一透镜组,被配置为包括至少一个透镜并具有正折光力的第二透镜组,第三透镜​​组被配置为 包括至少一个透镜并具有负屈光力;第四透镜组,被配置为包括配置为具有非球面或自由曲面的至少一个透镜和凹面镜,其中所述第一透镜组,所述第二透镜 组,第三透镜​​组,第四透镜组和凹面镜依次布置,投影光学系统是非远心光学系统。