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1. 发明申请

US20070002446A1 DIFFRACTIVE LENS AND SCANNING LENS FORMED WITH DIFFRACTIVE LENS 有权
标题翻译： DIFFRACTIVE LENS AND SCANNING LENS FORMED DIFFRACTIVE LENS
公开(公告)号：US20070002446A1
公开(公告)日：2007-01-04
申请号：US11427521
申请日：2006-06-29
申请人： Shuichi TAKEUCHI , Yutaka TAKAKUBO
发明人： Shuichi TAKEUCHI , Yutaka TAKAKUBO
IPC分类号： G02B5/18
CPC分类号： G02B5/1814 , G02B3/08 , G02B26/125
摘要： A scanning lens for an imaging optical system converges a beam emitted by a light source and deflected by a deflector on a target surface to form a beam spot scanning in a main scanning direction thereon. The scanning lens includes a plastic lens formed by injection molding, which has a diffractive lens structure on at least one surface thereof. The diffractive Wens structure has a plurality of annular zones arranged concentrically about a rotational axis. Each annular zone has a diffracting surface that diffracts the light beam passing therethrough. The diffractive lens structure has stepped surfaces each connecting adjoining diffracting surfaces In a plane including the rotational axis and parallel with the main scanning direction, the stepped surfaces are inclined with respect to the rotational axis so that stress working between a metallic molding for the plastic lens and each of the stepped surfaces in demolding is reduced.
摘要翻译：用于成像光学系统的扫描透镜会聚由光源发射并由偏转器偏转在目标表面上的光束，以在其上沿主扫描方向形成光束点扫描。扫描透镜包括通过注射成型形成的塑料透镜，其在至少一个表面上具有衍射透镜结构。衍射Wens结构具有围绕旋转轴线同心布置的多个环形区域。每个环形区域具有衍射通过其的光束的衍射表面。衍射透镜结构具有各自连接相邻的衍射面的阶梯面，在包含旋转轴线且与主扫描方向平行的平面中，阶梯面相对于旋转轴线倾斜，使得塑料透镜用金属成形体并且脱模中的每个台阶表面减小。

2. 发明申请

US20100328521A1 APPARATUS FOR DETECTING FOCUS 有权
标题翻译：检测焦点的装置
公开(公告)号：US20100328521A1
公开(公告)日：2010-12-30
申请号：US12822383
申请日：2010-06-24
申请人： Koichi SATO , Yutaka TAKAKUBO , Kazuo SUGITANI
发明人： Koichi SATO , Yutaka TAKAKUBO , Kazuo SUGITANI
IPC分类号： H04N5/232
CPC分类号： H04N5/23212 , G02B7/38 , G03B13/36 , G03B19/12
摘要： An apparatus for detecting a focus state has an optical image-forming system that forms an object image, a plurality of line sensors that is arranged on a projected area of the optical image-forming system; a plurality of monitor sensors that is arranged on the projected area along the direction of a line-sensor array, each monitor sensor being adjacent to a corresponding line sensor and monitoring an amount of light incident on the corresponding line sensor; and a signal processor that outputs image-pixel signals corresponding to the object image on the basis of electric charges accumulated in the plurality of line sensors. At least an endmost monitor sensor corresponding to an endmost line sensor is arranged on the center-facing side of the endmost line sensor.
摘要翻译：用于检测聚焦状态的设备具有形成物体图像的光学图像形成系统，布置在光学图像形成系统的投影区域上的多个线传感器; 多个监测传感器，沿着线传感器阵列的方向布置在投影区域上，每个监测传感器与相应的线传感器相邻，并监测入射在相应的线传感器上的光量; 以及信号处理器，其基于在多个线传感器中累积的电荷输出与对象图像相对应的图像像素信号。在最终线传感器的中心侧，至少配置有与最末端线传感器对应的最终监视传感器。

3. 发明申请

US20120075727A1 IMAGING OPTICAL SYSTEM AND IMAGING APPARATUS 审中-公开
标题翻译：成像光学系统和成像设备
公开(公告)号：US20120075727A1
公开(公告)日：2012-03-29
申请号：US13217606
申请日：2011-08-25
申请人： Yutaka TAKAKUBO , Eijiroh TADA , Koichi MARUYAMA
发明人： Yutaka TAKAKUBO , Eijiroh TADA , Koichi MARUYAMA
IPC分类号： G02B5/04
CPC分类号： G02B13/0065
摘要： An imaging optical system, which is provided with an imaging lens group having at least one lens, an image side prism that bends light which has passed through the imaging lens group toward an image pickup device arranged at a predetermined position, and a cover glass that is provided for the image pickup device and lets the light bent by the image side prism pass therethrough, and wherein an exist surface of the image side prism from which the light bent by the image side prism emerges and an entrance surface of the cover glass are adhered to each other with an adhesive which is optically transparent.
摘要翻译：一种成像光学系统，其设置有具有至少一个透镜的成像透镜组，将已经穿过成像透镜组的光朝向布置在预定位置的图像拾取装置弯曲的图像侧棱镜，以及覆盖玻璃，被设置用于图像拾取装置并且使由像侧棱镜弯曲的光通过其中，并且其中由像侧棱镜弯曲的光和遮盖玻璃的入射面的图像侧棱镜的存在表面是用光学透明的粘合剂彼此粘合。

4. 发明申请

US20120075728A1 IMAGING OPTICAL SYSTEM AND IMAGING APPARATUS 有权
标题翻译：成像光学系统和成像设备
公开(公告)号：US20120075728A1
公开(公告)日：2012-03-29
申请号：US13217623
申请日：2011-08-25
申请人： Yutaka TAKAKUBO , Eijiroh TADA
发明人： Yutaka TAKAKUBO , Eijiroh TADA
IPC分类号： G02B3/00
CPC分类号： G02B13/0065 , G02B13/0045
摘要： An imaging optical system, including an imaging lens group, an image side prism having an entrance surface a reflection surface and an exit surface from which light exits toward an image pickup device, and a first shielding member shielding at least a part of a region on the entrance surface, wherein the region on the entrance surface is located from an edge line of an apex between the entrance surface and the exit surface to a position corresponding to a height h from the edge line, and when L represents a length of the exit surface, α represents an angle formed between the reflection surface and the exit surface, n represents a refractive index of a surrounding area of the image side prism, and n′ represents a refractive index of the image side prism, the height h satisfies a following condition: h=L×cos {α+sin−1(n/n′)}.
摘要翻译：一种成像光学系统，包括成像透镜组，具有入射表面的反射表面的图像侧棱镜和光朝向图像拾取装置射出的出射表面，以及屏蔽至少一部分区域的第一屏蔽构件入射面，其中入射面上的区域从入射面和出射面的顶点的边缘线位于与边缘线对应的高度h的位置，并且当L表示出口的长度时表面，α表示在反射面和出射面之间形成的角度，n表示像侧棱镜的周围区域的折射率，n'表示像侧棱镜的折射率，高度h满足以下条件：h = L×cos {α+ sin-1（n / n'）}。

5. 发明申请

US20120075726A1 IMAGING OPTICAL SYSTEM AND IMAGING APPARATUS 有权
标题翻译：成像光学系统和成像设备
公开(公告)号：US20120075726A1
公开(公告)日：2012-03-29
申请号：US13237238
申请日：2011-09-20
申请人： Yutaka TAKAKUBO , Eijiroh TADA , Koichi MARUYAMA
发明人： Yutaka TAKAKUBO , Eijiroh TADA , Koichi MARUYAMA
IPC分类号： G02B17/08
CPC分类号： G02B13/0065
摘要： An imaging optical system, which includes an imaging lens group having at least one lens, and an image side prism that bends light which has passed through the imaging lens group toward an image pickup device arranged at a predetermined position, and wherein the image side prism includes a reflection surface which reflects, toward the image pickup device, incident light proceeding from the imaging lens group and an exit surface from which light reflected from the reflection surface emerges, and wherein the image side prism has a cut surface formed by cutting off a vertex portion between the reflection surface and the exit surface such that a whole normal light incident area within which normal light is incident on the reflection surface remains, and the cut surface is a non-diffusing surface.
摘要翻译：一种成像光学系统，其包括具有至少一个透镜的成像透镜组和将已经通过成像透镜组的光朝向布置在预定位置的图像拾取装置弯曲的图像侧棱镜，并且其中所述图像侧棱镜包括反射面，朝向图像拾取装置反射从成像透镜组行进的入射光和从反射面反射的光的出射面，其中，图像侧棱镜具有通过切断形成的切割面在反射面和出射面之间的顶点部分，使得其中正常光入射到反射面上的整个正常光入射区域保留，并且切割表面是非扩散表面。

6. 发明申请

US20110170847A1 FOCUS DETECTION OPTICAL SYSTEM 有权
标题翻译：聚焦检测光学系统
公开(公告)号：US20110170847A1
公开(公告)日：2011-07-14
申请号：US12980683
申请日：2010-12-29
申请人： Yutaka TAKAKUBO
发明人： Yutaka TAKAKUBO
IPC分类号： G03B13/00
CPC分类号： G03B13/36 , G03B3/10 , G03B13/18
摘要： A focus detection optical system includes a condenser lens positioned behind an expected image plane of a photographing lens, an auxiliary lens positioned behind the condenser lens, and a separator lens including a pair of lenses behind the auxiliary lens. An object image formed on the expected image plane is divided into two images by the pair of lenses and reformed on a pair of areas on a sensor. The auxiliary lens is a plastic lens having a negative refractive power. The separator lens is a glass lens or a hybrid lens consisting of a glass substrate and a plastic lens having a curved surface which is layered onto the glass substrate, and the focus detection optical system satisfies the following condition (1): 0.068
摘要翻译：焦点检测光学系统包括位于拍摄镜头的期望图像平面后面的聚光透镜，位于聚光透镜后面的辅助透镜，以及在辅助透镜后面包括一对透镜的分离透镜。形成在预期图像平面上的物体图像被该对透镜分成两个图像，并在传感器上的一对区域上重新形成。辅助透镜是具有负屈光力的塑料透镜。分离透镜是由玻璃基板和具有层叠在玻璃基板上的曲面的塑料透镜构成的玻璃透镜或混合透镜，焦点检测光学系统满足以下条件（1）：0.068

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