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    • 2. 发明授权
    • Image projection apparatus
    • 图像投影仪
    • US07178921B2
    • 2007-02-20
    • US11233049
    • 2005-09-22
    • Kenji KonnoSoh OhzawaJun Ishihara
    • Kenji KonnoSoh OhzawaJun Ishihara
    • G03B21/28
    • G03B21/10G02B17/0663G03B21/005
    • An oblique projection optical system for leading rays of light from a display surface on which an image is displayed to a projection surface in such a way that the ray of light from the center of the display surface is obliquely incident on the projection surface in order to project a magnified image of the image displayed on the display surface onto the projection surface includes a plurality of reflecting surfaces having a power. At least two of the reflecting surfaces have a free-form curved surface, and, of all the reflecting surfaces, the one closest to the projection surface has a negative power and at least one of the other has a positive power. Alternatively, in a rear projection optical system having a projection optical system for projecting an image displayed on a panel display surface onto a screen surface, the projection optical system includes at least four curved-surface reflecting mirrors.
    • 一种倾斜投影光学系统,用于将来自显示图像的显示表面的光线引导到投影表面,使得来自显示表面的中心的光线倾斜地入射在投影表面上,以便 将显示在显示表面上的图像的放大图像投影到投影表面上,包括具有电力的多个反射表面。 至少两个反射表面具有自由曲面,并且在所有反射表面中,最靠近投影表面的一个反射表面具有负功率,而另一个反射表面中的至少一个具有正的功率。 或者,在具有用于将显示在面板显示面上的图像投影到屏幕表面上的投影光学系统的投影光学系统中,投影光学系统包括至少四个弯曲表面反射镜。
    • 5. 发明申请
    • Imaging optical system and imaging lens device
    • 成像光学系统和成像透镜装置
    • US20060017834A1
    • 2006-01-26
    • US11186186
    • 2005-07-21
    • Kenji KonnoSoh OhzawaJun IshiharaMitsuaki ShimoHiroshi Kibayashi
    • Kenji KonnoSoh OhzawaJun IshiharaMitsuaki ShimoHiroshi Kibayashi
    • H04N5/225
    • G02B13/007G02B13/0025G02B13/003G02B13/0035G02B13/006G02B13/0065H04N5/2254
    • An imaging optical system 100 has an imaging side prism 102 for bending incident light at about 90 degrees for reflection, and an image sensor 105 having a light receiving surface opposing to an exit surface 102b of the imaging side prism 102. At least one of an incident surface 101a of an incident side prism 101 and an incident surface 101a of the imaging side prism 102, or at least one of an exit surface 101b of the incident side prism 101 and the exit surface 102b of the imaging side prism 102 has an optical power. An arrangement relation between the exit surface 102b of the imaging side prism 102 and the image sensor 105 is established to satisfy the conditional formula (1): 0.0≦d/a
    • 成像光学系统100具有成像侧棱镜102,用于将入射光弯曲成大约90度用于反射;以及图像传感器105,其具有与成像侧棱镜102的出射表面102b相对的光接收表面。至少一个 入射侧棱镜101的入射面101a和摄像侧棱镜102的入射面101a,或摄像侧的入射侧棱镜101的出射面101b和出射面102b中的至少一个 棱镜102具有光功率。 建立成像侧棱镜102的出射面102b与图像传感器105之间的配置关系,以满足条件式(1):<?in-line-formula description =“In-line Formulas”end =“lead “?> 0.0 <= d / a <0.8(1)<?in-line-formula description =”In-line Formulas“end =”tail“?>其中d表示出射表面102b和光线之间的距离 图像传感器105的接收表面,a表示在成像光学系统100的光路被折叠的平面上的图像传感器105的光接收表面的高度,例如,图像传感器105的尺寸 短边方向。 这种布置使得能够减小用于结合成像光学系统100的装置壳体BD的厚度。
    • 6. 发明授权
    • Rear projection optical system
    • 背投光学系统
    • US06779897B2
    • 2004-08-24
    • US10151342
    • 2002-05-20
    • Kenji KonnoSoh OhzawaJun Ishihara
    • Kenji KonnoSoh OhzawaJun Ishihara
    • G03B2128
    • G03B21/10G02B17/0663G03B21/005
    • An oblique projection optical system for leading rays of light from a display surface on which an image is displayed to a projection surface in such a way that the ray of light from the center of the display surface is obliquely incident on the projection surface in order to project a magnified image of the image displayed on the display surface onto the projection surface includes a plurality of reflecting surfaces having a power. At least two of the reflecting surfaces have a free-form curved surface, and, of all the reflecting surfaces, the one closest to the projection surface has a negative power and at least one of the other has a positive power. Alternatively, in a rear projection optical system having a projection optical system for projecting an image displayed on a panel display surface onto a screen surface, the projection optical system includes at least four curved-surface reflecting mirrors.
    • 一种倾斜投影光学系统,用于将来自显示图像的显示表面的光线引导到投影表面,使得来自显示表面的中心的光线倾斜地入射在投影表面上,以便 将显示在显示表面上的图像的放大图像投影到投影表面上,包括具有电力的多个反射表面。 至少两个反射表面具有自由曲面,并且在所有反射表面中,最靠近投影表面的一个反射表面具有负功率,而另一个反射表面中的至少一个具有正的功率。 或者,在具有用于将显示在面板显示面上的图像投影到屏幕表面上的投影光学系统的投影光学系统中,投影光学系统包括至少四个弯曲表面反射镜。
    • 7. 发明申请
    • Image projection apparatus
    • 图像投影仪
    • US20060109427A1
    • 2006-05-25
    • US11233049
    • 2005-09-22
    • Kenji KonnoSoh OhzawaJun Ishihara
    • Kenji KonnoSoh OhzawaJun Ishihara
    • G03B21/22
    • G03B21/10G02B17/0663G03B21/005
    • An oblique projection optical system for leading rays of light from a display surface on which an image is displayed to a projection surface in such a way that the ray of light from the center of the display surface is obliquely incident on the projection surface in order to project a magnified image of the image displayed on the display surface onto the projection surface includes a plurality of reflecting surfaces having a power. At least two of the reflecting surfaces have a free-form curved surface, and, of all the reflecting surfaces, the one closest to the projection surface has a negative power and at least one of the other has a positive power. Alternatively, in a rear projection optical system having a projection optical system for projecting an image displayed on a panel display surface onto a screen surface, the projection optical system includes at least four curved-surface reflecting mirrors.
    • 一种倾斜投影光学系统,用于将来自显示图像的显示表面的光线引导到投影表面,使得来自显示表面的中心的光线倾斜地入射在投影表面上,以便 将显示在显示表面上的图像的放大图像投影到投影表面上,包括具有电力的多个反射表面。 至少两个反射表面具有自由曲面,并且在所有反射表面中,最靠近投影表面的一个反射表面具有负功率,而另一个反射表面中的至少一个具有正的功率。 或者,在具有用于将显示在面板显示面上的图像投影到屏幕表面上的投影光学系统的投影光学系统中,投影光学系统包括至少四个弯曲表面反射镜。