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1.发明授权Auto focus detecting device comprising both phase-difference detecting and contrast detecting methods 失效自动对焦检测装置包括相位差检测和对比度检测方法
公开(公告)号：US5597999A
公开(公告)日：1997-01-28
申请号：US582026
申请日：1996-01-02
申请人： Akio Kinba , Masataka Hamada , Hiroshi Ueda , Kazumi Sugitani , Hiroshi Ootsuka
发明人： Akio Kinba , Masataka Hamada , Hiroshi Ueda , Kazumi Sugitani , Hiroshi Ootsuka
CPC分类号： G02B7/285
摘要： An auto focus detecting device capable of focus detection by a contrast detecting method and a phase-difference detecting method. In accordance with a condition of an object, either one of detecting method is selected, and then an amount of defocus is calculated based on a result obtained by the selected detecting method.
摘要翻译： 一种能够通过对比度检测方法和相位差检测方法进行聚焦检测的自动聚焦检测装置。 根据对象的条件，选择检测方法中的任一种，然后基于通过所选择的检测方法获得的结果计算散焦量。
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公开(公告)号：US20080297286A1
公开(公告)日：2008-12-04
申请号：US12156105
申请日：2008-05-29
IPC分类号： H01F7/02
CPC分类号： G01D5/145
摘要： There is provided a position detector by which output having linearity can be obtained in a wide range, which has a movable member 2 that is magnetized into N-poles 3 and S-poles 4 arranged in a movable direction and two magnetic detection elements 5 that are arranged in the movable direction in face of the movable member 2 and that detect variation of magnetic field, in which there are performed an operation (A−B)/(A+B)+2 when A≧0 and A+B≧0 (wherein A and B are detection signals of the two magnetic detection elements 5), an operation (A+B)/(B−A) when A
摘要翻译： 提供了一种位置检测器，通过该位置检测器能够在宽范围内获得具有线性的输出，该宽度范围具有被磁化成沿可移动方向布置的N极3和S极4的可动构件2和两个磁性检测元件5， 在可动件2的表面上沿可移动方向布置，并且当A> = 0且A + B> = 0时检测磁场的变化，其中执行操作（AB）/（A + B）+2） 0（其中A和B是两个磁检测元件5的检测信号），当A <0和B> = 0时的操作（A + B）/（BA）和操作（AB）/（A + B ）-2，当B <0，A + B <0时。
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公开(公告)号：US08198784B2
公开(公告)日：2012-06-12
申请号：US12716797
申请日：2010-03-03
申请人： Tadatomi Sougawa , Kazumi Sugitani , Shuichi Fujii
发明人： Tadatomi Sougawa , Kazumi Sugitani , Shuichi Fujii
IPC分类号： H02N2/04 , H01L41/053
摘要： A driving device 1 includes an electromechanical transducer 3, a shaft-like vibrating member 4 vibrated in its axial direction by the electromechanical transducer 3, a movable member 5 which engaging frictionally with the vibrating member 4, a substrate 6 with a sensor 14 mounted thereon for detecting a position of the movable member 5, and a holding member 7 fixed to the substrate 6 and having a holding section 20 for holding the vibrating member 4 and a positioning section 27 for positioning the sensor.
摘要翻译： 驱动装置1包括机电换能器3，通过机电换能器3在其轴向上振动的轴状振动构件4，与振动构件4摩擦接合的可动构件5，安装有传感器14的基板6 用于检测可动构件5的位置，固定构件7固定在基板6上并具有用于保持振动构件4的保持部20和用于定位传感器的定位部27。
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公开(公告)号：US07315164B2
公开(公告)日：2008-01-01
申请号：US11342408
申请日：2006-01-30
申请人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
发明人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
IPC分类号： G01B7/14
摘要： A drive unit in accordance with the present invention is provided with a magnetic field generating member generating a magnetic field, a magnetic field detecting device constituted by first, second and third magnetic field detecting elements detecting the magnetic field, and a piezoelectric actuator moving the magnetic field generating member. When executing a relative positioning between the magnetic field generating member and the magnetic field detecting device on the basis of a detection result by the magnetic field detecting device, a first positioning is executed on the basis of the detection result of the first and second magnetic field detecting elements in a predetermined region, and a second positioning is executed on the basis of the detection result of the third magnetic field detecting element at a predetermined point apart from the predetermined region, within a movable range in which the magnetic field generating member moves. In accordance with the structure, it is possible to position the movable body at a high precision, even in the case that a plurality of position detecting points of the movable body of the drive unit exist at a wide interval.
摘要翻译： 根据本发明的驱动单元设置有产生磁场的磁场产生构件，由检测磁场的第一，第二和第三磁场检测元件构成的磁场检测装置，以及将磁性元件移动的压电致动器 场产生部件。 基于磁场检测装置的检测结果，在磁场产生部件和磁场检测装置之间进行相对定位时，基于第一和第二磁场的检测结果执行第一定位 在预定区域内检测元件，并且在磁场产生构件移动的可移动范围内，基于第三磁场检测元件在与预定区域相隔的预定点处的检测结果来执行第二定位。 根据该结构，即使在驱动单元的可动体的多个位置检测点以大的间隔存在的情况下，也可以高精度地定位移动体。
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公开(公告)号：US6115555A
公开(公告)日：2000-09-05
申请号：US118274
申请日：1998-07-17
申请人： Hirosih Ueda , Kazumi Sugitani
发明人： Hirosih Ueda , Kazumi Sugitani
CPC分类号： G02B7/32
摘要： An image shooting apparatus has a detector for acquiring information needed to control the focus of a taking lens in a plurality of target areas within the shooting area, and a light emitter having a plurality of light-emitting portions for illuminating the plurality of target areas. The light-emitting portion that is located farthest away from the taking lens illuminates the target area that is located opposite to that light-emitting portion with respect to the taking lens. Moreover, the light-emitting portion located farthest away from the taking lens and the other light-emitting portions use a common light source so that light from this common light source is divided and shone onto the plurality of target areas. Furthermore, the plurality of light-emittining portions are so arranged that the optical paths of the light beams emitted therefrom cross one another.
摘要翻译： 图像拍摄装置具有用于获取控制拍摄区域内的多个目标区域中的拍摄镜头的焦点所需的信息的检测器，以及具有用于照射多个目标区域的多个发光部的发光器。 位于拍摄镜头最远处的发光部照射相对于拍摄镜片与该发光部相对的目标区域。 此外，位于离拍摄镜头最远的发光部分和其他发光部分使用公共光源，使得来自该公共光源的光被分割并照射到多个目标区域上。 此外，多个发光部分被布置成使得从其发射的光束的光路彼此交叉。
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公开(公告)号：US5037188A
公开(公告)日：1991-08-06
申请号：US314128
申请日：1989-02-23
CPC分类号： G02B7/346
摘要： An optical system for detecting focusing condition comprises a pair of image re-forming lenses and an aperture mask. The image re-forming lenses are configured with a pair of plano-convex lenses having equal radius of curvature R and an equal axial thickness T. R is nearly equal to T (R.apprxeq.T). The aperture mask has apertures corresponding to the respective plano-convex lenses and is attached closely to the flat surfaces of the plano-convex lenses. Comatic aberrations for the respective light fluxes passing through the apertures become nearly same, and therefore point images formed by the respective light fluxes also become nearly same. Consequently, high accuracy of focusing condition detection is established.
摘要翻译： 用于检测聚焦条件的光学系统包括一对图像重新形成透镜和孔径掩模。 图像重新形成透镜由一对具有相同的曲率半径R和相等的轴向厚度T的平凸透镜构成.R几乎等于T（R APPROX T）。 孔径掩模具有对应于相应的平凸透镜的孔，并且紧密地附接到平凸透镜的平坦表面。 通过孔径的各光束的旋转像差变得几乎相同，因此由各个光束形成的点图像也变得几乎相同。 因此，建立了聚焦状态检测的高精度。
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公开(公告)号：US5229807A
公开(公告)日：1993-07-20
申请号：US741210
申请日：1991-07-31
IPC分类号： G02B7/34
CPC分类号： G02B7/346
摘要： A focus detecting device which comprises an objective lens for forming an image of an object, a condenser lens, located behind a predetermined focal plane of the objective lens, for converging the light passed through the objective lens, a pair of image re-forming lenses, located behind the condenser lens, for re-forming a pair of secondary images of the image formed by the objective lens on an off-axial region of the objective lens located at a position far from the optical axis thereof, a light direction changing device, located nearby the condenser lens, for changing the direction along which light bundles forming the secondary images passes towards the optical axis, and a light receiving device for receiving the pair of the secondary images formed by the secondary image forming device to produce a light intensity distribution signal representing the light intensity distribution of the secondary images, a focus condition calculating device for calculating a focus condition of the objective lens by means of detecting the positions of the pair of the secondary images in accordance with the light intensity distribution signal.
摘要翻译： 一种聚焦检测装置，包括用于形成物体的图像的物镜，聚光透镜，位于物镜的预定焦平面后面，用于会聚通过物镜的光，一对图像重构透镜 位于所述聚光透镜后面，用于在位于远离其光轴的位置处的物镜的偏轴区域上重新形成由所述物镜形成的图像的一对二次图像;光方向改变装置 位于聚光透镜附近，用于改变形成次级图像的光束朝向光轴的方向;以及光接收装置，用于接收由二次图像形成装置形成的一对次级图像，以产生光强度 分配信号，表示二次图像的光强度分布;焦点条件计算装置，用于计算ob的焦点条件 通过根据光强分布信号检测一对次级图像的位置来实现。
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公开(公告)号：US4949116A
公开(公告)日：1990-08-14
申请号：US391923
申请日：1989-08-10
IPC分类号： G02B7/34
CPC分类号： G02B7/346
摘要： A focus detection apparatus of a camera comprising a plurality of focus condition detecting units, each of which includes at least a pair of re-imaging lens forming a pair of secondary images using a pair of light rays passed through a photo-taking lens and a condenser lens, and a CCD (charge-coupled device) line sensor receiving the images and detecting a focus condition of the photo-taking lens. All of the focus detection areas defined by each of the focus condition detecting units are located parallel one another and overlaps partially at least one other focus detection area in a perpendicular direction to a direction in which all of the focus detection areas extend. Therefore, there is no space, where the focus condition cannot be detected, among the focus detection areas in the parallel direction in which all of the focus detection areas extend.
摘要翻译： 一种照相机的焦点检测装置，包括多个聚焦条件检测单元，每个焦点条件检测单元至少包括一对重新成像透镜，其使用通过摄影镜头的一对光线形成一对二次图像，以及 聚光透镜和接收图像的CCD（电荷耦合器件）线传感器，并检测摄影镜头的聚焦条件。 由每个聚焦条件检测单元定义的所有焦点检测区域彼此平行，并且在与所有焦点检测区域延伸的方向垂直的方向上部分地与至少一个其他焦点检测区域重叠。 因此，在所有焦点检测区域延伸的并行方向的焦点检测区域中，不存在聚焦条件不能被检测到的空间。
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公开(公告)号：US4908504A
公开(公告)日：1990-03-13
申请号：US368095
申请日：1989-06-19
CPC分类号： G02B7/346
摘要： A focus detecting optical system is disclosed which includes an objective lens for forming an image of an object, a plurality of focus detecting blocks, and a focus condition calculating device for calculating a focus condition of the objective lens in accordance with the light intensity distribution signals produced by the plurality of the focus detecting blocks. Each of the focus detecting blocks includes a condenser lens located nearby a predetermined focal plane of the objective lens, a pair of image re-forming lenses located behind the condenser lens for reforming a pair of secondary images of the image formed by the objective lens, a mask plate having a pair of apertures through which light fluxes forming the secondary images pass and a light receiving unit for receiving the pair of the secondary images formed by the pair of image re-forming lenses to produce a light intensity distribution signal representative of the light intensity distribution of the secondary images. The apertures in the mask plate of at least one specified focus detecting block has a configuration different from that of the other focus detecting blocks.
摘要翻译： 公开了一种聚焦检测光学系统，其包括用于形成物体的图像的物镜，多个焦点检测块和用于根据光强度分布信号计算物镜的聚焦条件的聚焦条件计算装置 由多个焦点检测块产生。 每个焦点检测块包括位于物镜的预定焦平面附近的聚光透镜，位于聚光透镜后面的一对图像重构透镜，用于重构由物镜形成的图像的一对二次图像， 具有一对孔径的掩模板，通过该孔口形成次级图像的光束通过;以及光接收单元，用于接收由一对图像重新形成透镜形成的一对次级图像，以产生表示该二次图像的光强分布信号 二次图像的光强分布。 至少一个指定焦点检测块的掩模板中的孔具有与其它焦点检测块不同的构造。
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公开(公告)号：US4857718A
公开(公告)日：1989-08-15
申请号：US193816
申请日：1988-05-12
摘要： A focus detecting device has a plurality of focus detection blocks, which blocks reproduce images of an object once produced by an objective lens as a pair of images on first and second CCD line sensors arrayed in a line, by means of a condenser lens, a pair of re-imaging lenses, and an aperture mask having a pair of aperture openings provided in the proximity of the re-imaging lenses, which blocks detect the positions of the paired images formed on the CCD line sensors, and detects the focus condition of the objective lens. In the focus detecting device, a light shield member to prevent the incidence of harmful light on the CCD line sensors is provided between at least the condenser lens and the CCD line sensors.
摘要翻译： 焦点检测装置具有多个焦点检测块，其通过聚光透镜阻止将由物镜一次产生的物体的图像再现成在一行排列的第一和第二CCD线传感器上的一对图像， 一对重新成像透镜和具有设置在重新成像透镜附近的一对孔径开口的孔径掩模，其阻挡检测在CCD线传感器上形成的成对图像的位置，并且检测聚焦条件 物镜。 在聚焦检测装置中，至少在聚光透镜和CCD线传感器之间设置防止CCD线传感器上的有害光的入射的遮光部件。
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