Focus adjusting device
    11.
    发明授权
    Focus adjusting device 失效
    聚焦调节装置

    公开(公告)号:US4443086A

    公开(公告)日:1984-04-17

    申请号:US330438

    申请日:1981-12-14

    CPC分类号: G02B7/34

    摘要: In the disclosed focus adjusting device, at least part of an image forming optical system and a focus adjusting mechanism is arranged within a housing attachable to and detachable from a camera body. A focus condition detector includes a photo-sensor disposed on a plane corresponding to the camera image plane, an electrical detection circuit connected to the photo-sensor, and a detecting optical system for forming an image of at least a part of the object on the surface of the photo-sensor. An aural indicator emits a sound to inform a photographer of the condition of the image formed on the surface of the predetermined focal plane as determined by the focusing condition detector.

    摘要翻译: 在所公开的焦点调节装置中,图像形成光学系统和焦点调节机构的至少一部分被布置在可附接到照相机主体并且可从照相机主体拆卸的壳体内。 焦点条件检测器包括设置在与摄像机图像平面相对应的平面上的光电传感器,连接到光传感器的电检测电路,以及检测光学系统,用于在物体的至少一部分上形成图像 光传感器的表面。 听觉指示器发出声音,以通知摄影者由聚焦状态检测器确定的在预定焦平面的表面上形成的图像的状态。

    Focus detecting apparatus with a compensation mask
    13.
    发明授权
    Focus detecting apparatus with a compensation mask 失效
    带补偿面罩的对焦检测装置

    公开(公告)号:US4547663A

    公开(公告)日:1985-10-15

    申请号:US596575

    申请日:1984-04-05

    CPC分类号: G03B3/10

    摘要: A focus detecting apparatus is disclosed which includes a focusing optical system for forming an object image on a predetermined focal plane and photoelectric devices disposed before and behind the focal plane at substantially equal distances from the plane. The photoelectric devices detect the focus states of the object images formed thereon respectively. The focus state of the object image on the focal plane is detected depending on whether or not the focus states on the photoelectric devices are equal to each other. According to the invention such a focus detecting apparatus further includes a mask for gradually decreasing the quantity of light incident upon the photoelectric devices in the direction away from the center of the incident beam. Under the action of such a mask, the focus states of object images before and behind the predetermined focal plane at substantially equal distances from the focal plane are made approximately equal to each other.

    摘要翻译: 公开了一种聚焦检测装置,其包括用于在预定焦平面上形成物体图像的聚焦光学系统和设置在距离平面基本相等的距离处的焦平面之前和之后的光电装置。 光电装置分别检测形成在其上的物体图像的聚焦状态。 根据光电装置上的聚焦状态是否相等来检测焦平面上的对象图像的聚焦状态。 根据本发明,这种焦点检测装置还包括用于逐渐减小入射在光电装置上的光在远离入射光束中心的方向上的掩模。 在这种掩模的作用下,预定焦平面之前和之后距离焦平面基本相等的物体图像的聚焦状态大致相等。

    Focus detecting system
    14.
    发明授权
    Focus detecting system 失效
    聚焦检测系统

    公开(公告)号:US4341953A

    公开(公告)日:1982-07-27

    申请号:US151533

    申请日:1980-05-19

    CPC分类号: G03B3/10

    摘要: A focus detecting system for detecting focusing condition of an image forming optical system to an object. In this system there are produced first and second signals corresponding to imaging conditions of object images at first and second positions on front and rear sides of and at substantially equal distances from a predetermined focal plane of said optical system, respectively, and another signal corresponding to imaging condition of an object image at third position substantially coincident with said predetermined focal plane. In accordance with these first, second and third signals, a decision is given as to the focusing condition, namely, in-focus, near-focus or far-focus condition, as well as, the distinction between correctly focused condition and considerably defocused condition.

    摘要翻译: 一种用于检测成像光学系统的对焦条件到对象的焦点检测系统。 在该系统中,分别产生对应于来自所述光学系统的预定焦平面的前侧和后侧上的第一和第二位置处的物体图像的成像条件的第一和第二信号,以及对应于 在第三位置处的物体图像的成像条件基本上与所述预定焦平面重合。 根据这些第一,第二和第三信号,给出关于聚焦条件即聚焦,近焦点或远焦点条件以及正确聚焦条件和显着散焦条件之间的区别的决定 。

    Focal point detecting system
    15.
    发明授权
    Focal point detecting system 失效
    焦点检测系统

    公开(公告)号:US4315674A

    公开(公告)日:1982-02-16

    申请号:US150959

    申请日:1980-05-19

    CPC分类号: G03B3/10

    摘要: A focal point detection system for detecting the focus adjusting state of an image forming lens during its focusing operation on an object is disclosed. The system comprises a focus detection circuit which produces a detection output that varies with focusing of the lens on the object; a plurality of display elements are provided for display of the focusing state of the lens; and a display control circuit which enables the display elements to display a greater number of focusing states than the number of these display elements through selective combinations of these elements on the basis of the output of the focus detection circuit. The system is capable of displaying intermediate focusing states such as a slightly near-focus state, a slightly far-focus state, and the like in addition to in-focus, near-focus, and far-focus states, so that the focusing state can be displayed stepwise in a detailed manner.

    摘要翻译: 公开了一种用于在对象物的聚焦操作期间检测图像形成透镜的焦点调整状态的焦点检测系统。 该系统包括焦点检测电路,其产生随着透镜在物体上的聚焦而变化的检测输出; 提供多个显示元件用于显示透镜的聚焦状态; 以及显示控制电路,其通过基于焦点检测电路的输出,通过这些元素的选择性组合,使得显示元件能够显示比这些显示元件的数量更多的聚焦状态。 除了聚焦,近焦点和远焦点状态之外,该系统能够显示中等聚焦状态,例如稍微接近焦点状态,稍微远焦点状态等,使得聚焦状态 可以以详细的方式逐步显示。

    Focus detecting device with varying pitch cylindrical lens element
    17.
    发明授权
    Focus detecting device with varying pitch cylindrical lens element 失效
    具有变化间距的柱面透镜元件的聚焦检测装置

    公开(公告)号:US4419574A

    公开(公告)日:1983-12-06

    申请号:US282605

    申请日:1981-07-13

    CPC分类号: G02B3/06 G02B3/0043 G02B7/346

    摘要: In the disclosed focus detecting system, the focusing condition of an objective lens relative to an object is determined by a number of pairs of radiation sensitive elements arranged in a linear array, and a number of lens elements arranged in a linear array corresponding to the linear array of the pairs of radiation sensitive elements. Each lens element is disposed so that one radiation sensitive element in each pair of radiation sensitive elements is arranged to cause one radiation sensitive element in each pair of radiation sensitive elements to receive radiation from a first portion of the objective lens and to cause the other radiation sensitive element to receive radiation from a second portion of the objective lens. The plural lens elements assume the form of a plurality of cylindrical lens elements arranged in a linear array corresponding to the linear array of the pairs of radiation sensitive elements with each of the pitches between successive cylindrical lens elements varying along the longitudinal direction of the cylindrical lens element.

    摘要翻译: 在所公开的焦点检测系统中,物镜相对于物体的聚焦条件由排列成线性阵列的多个辐射敏感元件决定,并且多个透镜元件排列成与线性对应的线性阵列 数组辐射敏感元件对。 每个透镜元件设置成使得每对辐射敏感元件中的一个辐射敏感元件被布置成使得每对辐射敏感元件中的一个辐射敏感元件接收来自物镜的第一部分的辐射并且引起另一辐射 以接收来自物镜的第二部分的辐射。 多个透镜元件采取多个圆柱形透镜元件的形式,该多个柱面透镜元件布置成对应于成对的辐射敏感元件的线性阵列的线性阵列,其中连续柱面透镜元件之间的每个间距在柱面透镜的纵向方向上变化 元件。

    Focus detecting apparatus
    18.
    发明授权
    Focus detecting apparatus 失效
    对焦检测装置

    公开(公告)号:US4632532A

    公开(公告)日:1986-12-30

    申请号:US759939

    申请日:1985-07-29

    IPC分类号: G02B7/28 G02B7/34 G03B3/00

    CPC分类号: G02B7/343

    摘要: In a focus detecting apparatus for detecting the focus state of an objective lens on the basis of a light passing through the objective lens, a field lens is disposed near the predetermined imaging plane of the objective lens, and a projecting optical system for projecting the light from a light source onto an object through a first area of the pupil of the objective lens and a light-receiving optical system for forming a plurality of images on a sensor on the basis of lights passing through second and third areas of the pupil of the objective lens are disposed rearward of the image of the pupil of the objective lens formed by the field lens, whereby both focus detection based on the projected light and focus detection not based on the projected light can be accomplished.

    摘要翻译: 在用于基于通过物镜的光检测物镜的聚焦状态的焦点检测装置中,在物镜的预定成像平面附近设置场透镜,以及用于投射光的投影光学系统 通过物镜的光瞳的第一区域从光源到物体,以及光接收光学系统,用于基于通过所述物镜的瞳孔的第二和第三区域的光在传感器上形成多个图像 物镜设置在由场透镜形成的物镜的瞳孔的图像的后方,由此可以实现基于投影光的焦点检测和不基于投影光的聚焦检测。

    Distance measuring device comprising a two sectioned sensor, each
section having a plurality of sensing areas
    19.
    发明授权
    Distance measuring device comprising a two sectioned sensor, each section having a plurality of sensing areas 失效
    距离测量装置包括两个分段传感器,每个部分具有多个感测区域

    公开(公告)号:US4687914A

    公开(公告)日:1987-08-18

    申请号:US595271

    申请日:1984-03-30

    CPC分类号: G01C3/06 G01S17/46

    摘要: In the disclosed distance measuring device a light source projects a light on an object to be photographed and at least two photo-electric converters each with several light receiving areas receive light reflected by the object. The quantity of electric charge on these areas varies with the quantity of light incident thereon. An electric charge storage stores the electric charges produced at the two converters and a control determines the operation of the light receiving areas of the photo-electric converters according to the electric charge information produced.

    摘要翻译: 在所公开的距离测量装置中,光源将光照射在待拍摄的物体上,并且至少两个具有若干个光接收区域的光电转换器接收由物体反射的光。 这些区域上的电荷量随入射到其上的光量而变化。 电荷存储器存储在两个转换器处产生的电荷,并且控制根据产生的电荷信息确定光电转换器的光接收区域的操作。

    Photo-electric converting device
    20.
    发明授权
    Photo-electric converting device 失效
    光电转换装置

    公开(公告)号:US4681432A

    公开(公告)日:1987-07-21

    申请号:US595242

    申请日:1984-03-30

    IPC分类号: G01C3/08 G03B3/00 H01J40/14

    CPC分类号: G01C3/08

    摘要: A photo-electric converting device includes storing parts which store electric charges obtained through a photo-electric conversion process respectively from reflected light received when light projection is performed by light emitting apparatus and another reflected light received when no light is projected by the light emitting apparatus. The device computes storage signals produced from the storing parts and detects an electric signal which corresponds solely to reflected light resulting from light projection performed by the light emitting apparatus.

    摘要翻译: 光电转换装置包括存储部分,其存储通过光电转换处理获得的电荷,所述电荷分别是当由发光装置执行光投射时接收到的反射光和当由发光装置没有光投射时接收的另一反射光 。 该装置计算从存储部分产生的存储信号,并且检测仅对应于由发光装置执行的光投射产生的反射光的电信号。