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公开(公告)号：US4835564A
公开(公告)日：1989-05-30
申请号：US137322
申请日：1987-12-23
CPC分类号： G03B7/097
摘要： A drive current of a motor is controlled by an output of a pulse oscillator having a variable duty ratio in response to a shutter release operation. Shutter blades having the function of the diaphragm blade start to open the aperture for exposure in interlocked relationship with the rotation of the motor. The shutter blades are provided with a plurality of detection marks for use in detection of the shutter blade position, and every time each of the detection marks passes through a predetermined detection point, an aperture value detection circuit produces a detection pulse. Each of the detection pulses is supplied to an operation circuit which calculates a time interval between the detection pulses. The time interval between the detection pulses is compared with a reference time stored previously in a setting device so that the duty ratio of the output signal of the pulse oscillator in the next cycle of the detection pulse is controlled to control the rotational speed of the motor. Further, the duty ratio of the pulse oscillator is made equal to 100% so that the motive power at the initial operation is secured until the aperture value detection circuit produces a first detection pulse.
摘要翻译： 电动机的驱动电流由响应于快门释放操作的具有可变占空比的脉冲振荡器的输出控制。 具有光阑叶片功能的快门叶片开始打开用于与电动机旋转互锁关系的曝光孔。 快门叶片设置有用于检测快门叶片位置的多个检测标记，并且每当检测标记通过预定检测点时，孔径值检测电路产生检测脉冲。 每个检测脉冲被提供给计算检测脉冲之间的时间间隔的运算电路。 将检测脉冲之间的时间间隔与预先存储在设定装置中的参考时间进行比较，使得在检测脉冲的下一周期中脉冲振荡器的输出信号的占空比被控制以控制电动机的转速 。 此外，使脉冲振荡器的占空比等于100％，使得确保初始操作时的动力直到孔径值检测电路产生第一检测脉冲。
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公开(公告)号：US06496651B2
公开(公告)日：2002-12-17
申请号：US10108387
申请日：2002-03-29
申请人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
发明人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
IPC分类号： G03B7097
CPC分类号： G03B7/28 , G03B7/09979
摘要： An exposure control method and apparatus for a camera having a two-area divided brightness measurement system. A central light value is determined based on a central area brightness of a photographic scene, and a peripheral light value is determined based on a peripheral area brightness of the scene. After determining by comparison between the central and peripheral light values whether the scene is back-lighted or front-lighted, a correction coefficient specific to back-lighted scenes or that specific to front-lighted scenes is read from a memory. An exposure value suitable for a main subject is calculated according to the following equation: Es=log2{1−(1−&agr;)2LVb−LVa}−log2&agr;+LVa wherein Es represents the exposure value and &agr; represents the correction coefficient.
摘要翻译： 一种用于具有两区域划分的亮度测量系统的相机的曝光控制方法和装置。 基于摄影场景的中心区域亮度来确定中心光值，并且基于场景的周边区域亮度来确定周边光值。 在通过中央和外围光值比较确定场景是背光还是前照亮之后，从存储器读取背景照明场景特有的校正系数或特定于前照明场景的校正系数。 根据以下等式计算适合于主要受试者的曝光值：其中Es表示曝光值，α表示校正系数。
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公开(公告)号：US06389232B2
公开(公告)日：2002-05-14
申请号：US09876047
申请日：2001-06-08
申请人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
发明人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
IPC分类号： G03B1505
CPC分类号： G03B7/28 , G03B7/09979
摘要： An exposure control method and apparatus for a camera having a two-area divided brightness measurement system. A central light value is determined based on a central area brightness of a photographic scene, and a peripheral light value is determined based on a peripheral area brightness of the scene. After determining by comparison between the central and peripheral light values whether the scene is back-lighted or front-lighted, a correction coefficient specific to back-lighted scenes or that specific to front-lighted scenes is read from a memory. An exposure value suitable for a main subject is calculated according to the following equation: Es=log2{1−(1−&agr;)2LVb−LVa}−log2&agr;+LVa wherein Es represents the exposure value and &agr; represents the correction coefficient.
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公开(公告)号：US4918479A
公开(公告)日：1990-04-17
申请号：US351782
申请日：1989-05-15
CPC分类号： G02B7/08 , G03B7/0807 , G03B7/091 , G03B7/10
摘要： A camera including operable means changeable from an initial position to a predetermined position and vice versa, drive means for driving the operable means, detection means for detecting that the operable means reaches the predetermined position, control means for controlling the drive means, whereby the operable means is forcibly reset in the initial position when an erroneous operation occurs. The camera detects the occurrence of erroneous operations and automatically suspends the driving of the operable means so as to eliminate the influence of erroneous operations and assure accurate photography.
摘要翻译： 一种照相机，包括可从初始位置改变到预定位置的操作装置，反之亦然，用于驱动可操作装置的驱动装置，用于检测可操作装置到达预定位置的检测装置，用于控制驱动装置的控制装置， 当发生错误操作时，装置在初始位置被强制复位。 相机检测到错误操作的发生，并自动暂停可操作装置的驱动，以消除错误操作的影响并确保准确的拍摄。
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公开(公告)号：US5774747A
公开(公告)日：1998-06-30
申请号：US833004
申请日：1997-04-04
申请人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
发明人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
CPC分类号： G03B7/28 , G03B7/09979
摘要： An exposure control method and apparatus for a camera having a two-area divided brightness measurement system. A central light value is determined based on a central area brightness of a photographic scene, and a peripheral light value is determined based on a peripheral area brightness of the scene. After determining by comparison between the central and peripheral light values whether the scene is back-lighted or front-lighted, a correction coefficient specific to back-lighted scenes or that specific to front-lighted scenes is read from a memory. An exposure value suitable for a main subject is calculated according to the following equation: Es=log.sub.2 {1-(1-.alpha.).sub.2.sup.LVb-LVa }-log.sub.2 .alpha.+LVa wherein Es represents the exposure value and .alpha. represents the correction coefficient.
摘要翻译： 一种用于具有两区域划分的亮度测量系统的相机的曝光控制方法和装置。 基于摄影场景的中心区域亮度来确定中心光值，并且基于场景的周边区域亮度来确定周边光值。 在通过中央和外围光值比较确定场景是背光还是前照亮之后，从存储器读取背景照明场景特有的校正系数或特定于前照明场景的校正系数。 根据以下等式计算适合于主要受试者的曝光值：Es = log2 {1-（1-α）2LVb-LVa}-log2α+ LVawherein Es表示曝光值，α表示校正系数。
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公开(公告)号：US5678098A
公开(公告)日：1997-10-14
申请号：US487846
申请日：1995-06-07
申请人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
发明人： Fumio Ishihara , Mutsumi Naruse , Takanori Kohno , Tetsuo Sakamoto , Kouichi Kobayashi , Teruyuki Tongu , Norifumi Nakagawa , Tomio Kurosu
CPC分类号： G03B7/28 , G03B7/09979
摘要： An exposure control method and apparatus for a camera having a two-area divided brightness measurement system. A central light value is determined based on a central area brightness of a photographic scene, and a peripheral light value is determined based on a peripheral area brightness of the scene. After determining by comparison between the central and peripheral light values whether the scene is back-lighted or front-lighted, a correction coefficient specific to back-lighted scenes or that specific to front-lighted scenes is read from a memory. An exposure value suitable for a main subject is calculated according to the following equation: Es=log.sub.2 {1-(1-.alpha.)2.sup.LVb-LVa }-log.sub.2 .alpha.+LVA wherein Es represents the exposure value and .alpha. represents the correction coefficient.
摘要翻译： 一种用于具有两区域划分的亮度测量系统的相机的曝光控制方法和装置。 基于摄影场景的中心区域亮度来确定中心光值，并且基于场景的周边区域亮度来确定周边光值。 在通过中央和外围光值比较确定场景是背光还是前照亮之后，从存储器读取背景照明场景特有的校正系数或特定于前照明场景的校正系数。 根据以下等式计算适合主要受试者的曝光值：Es = log2 {1-（1-alpha）2LVb-LVa}-log2α+ LVA其中Es表示曝光值，α表示校正系数。
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公开(公告)号：US08348502B2
公开(公告)日：2013-01-08
申请号：US12801805
申请日：2010-06-25
申请人： Norifumi Nakagawa
发明人： Norifumi Nakagawa
CPC分类号： G03B15/05 , G01J5/0003 , G03B2215/0528 , G03B2215/0532 , G03B2215/0535
摘要： There is provided a lighting apparatus that is capable of accurately measuring the temperature of an optical member that transmits therethrough light emitted from a light source without blocking the optical path of the light. A lighting apparatus including: a light source that emits light, an optical member that transmits therethrough the light emitted from the light source, a temperature measuring section that measures a temperature of a first measurement point on the optical member, a storing section that stores therein profile information representing a correlation between the temperature of the first measurement point and a temperature of a second measurement point, where the second measurement point is on the optical member and separated away from the first measurement point, and a temperature determining section that determines the temperature of second measurement point based on the temperature of the first measurement point measured by the temperature measuring section and the profile information stored in the storing section.
摘要翻译： 提供一种照明装置，其能够精确地测量透射从光源发射的光的光学部件的温度，而不会阻挡光的光路。 一种照明装置，包括：发光的光源，从所述光源发射的光透过的光学构件，测量所述光学构件上的第一测量点的温度的温度测量部，存储在所述光学构件上的存储部 表示所述第一测量点的温度与所述第二测量点在所述光学部件上并且与所述第一测量点分离的第二测量点的温度之间的相关性的简档信息;以及温度确定部，其确定所述温度 基于由温度测量部测量的第一测量点的温度和存储在存储部分中的简档信息的第二测量点。
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公开(公告)号：US20060197921A1
公开(公告)日：2006-09-07
申请号：US11366566
申请日：2006-03-03
申请人： Tomio Kurosu , Norifumi Nakagawa
发明人： Tomio Kurosu , Norifumi Nakagawa
IPC分类号： G03B21/14
CPC分类号： G01S17/48 , G01C3/085 , G02B26/0816 , G03B21/147 , H04N5/74 , H04N9/3185
摘要： In an optical angle detection apparatus, a single optical distance measurement unit is disposed opposite an object having a plane. The optical distance measurement unit includes a light projecting portion that projects a beam in the direction of an optical axis, and a light receiving portion that receives a beam reflected from a measurement position at which the optical axis intersects the plane and outputs a distance measurement signal indicating a distance to the measurement position. An optical axis deflector is provided for deflecting the optical axis to switch the measurement position between a first measurement position and a second measurement position, so that first and second distance measurement signals corresponding to the first and second measurement positions are output from the optical distance measurement unit. A controller obtains respective distances to the first and second measurement positions based on the first and second distance measurement signals and calculates a tilt angle of the plane based on the obtained distances.
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公开(公告)号：US4717929A
公开(公告)日：1988-01-05
申请号：US843629
申请日：1986-03-25
CPC分类号： G03B7/24
摘要： In order to make possible the automatic setting of the sensitivity of a film to be used in an exposure controlling system by a simplified structure manufacturable at a low cost, the camera auto sensing system for ISO speed comprises: a pair of switches rendered to either a conductive state or a non-conductive state by judging a digital pattern indicative of the film sensitivities provided on a film cartridge mounted in a camera; a pair of electromagnets connected to respective switches; a film sensitivity changing lever coupled to the armatures of the respective electromagnets so as to be allowed to be moved to four positions in accordance with the operative state and the non-operative state of the respective electromagnets; and light amount changing means coupled to the film sensitivity changing lever to change the amount of light incident to an exposure-controlling light-receiving device in accordance with the movement of the changing lever. Thus, in this system, the sensitivity of the film to be used is sensed and set to the exposure-controlling system at each shutter release.
摘要翻译： 为了能够通过以低成本制造的简化结构自动设定要在曝光控制系统中使用的胶片的感光度，用于ISO感光度的照相机自动感测系统包括：一对开关， 通过判断指示安装在照相机中的胶卷暗盒上提供的胶片敏感度的数字图案来确定导电状态或非导通状态; 一对连接到相应开关的电磁铁; 电影灵敏度变化杆，其耦合到各个电磁体的电枢，以便根据各个电磁体的操作状态和非操作状态被允许移动到四个位置; 以及光量改变装置，其耦合到胶片感光度变换杆，以根据变化杆的移动改变入射到曝光控制光接收装置的光量。 因此，在该系统中，在每个快门释放时感测并设置到曝光控制系统的胶片的灵敏度。
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公开(公告)号：US20100329302A1
公开(公告)日：2010-12-30
申请号：US12801805
申请日：2010-06-25
申请人： Norifumi Nakagawa
发明人： Norifumi Nakagawa
CPC分类号： G03B15/05 , G01J5/0003 , G03B2215/0528 , G03B2215/0532 , G03B2215/0535
摘要： There is provided a lighting apparatus that is capable of accurately measuring the temperature of an optical member that transmits therethrough light emitted from a light source without blocking the optical path of the light. A lighting apparatus including: a light source that emits light, an optical member that transmits therethrough the light emitted from the light source, a temperature measuring section that measures a temperature of a first measurement point on the optical member, a storing section that stores therein profile information representing a correlation between the temperature of the first measurement point and a temperature of a second measurement point, where the second measurement point is on the optical member and separated away from the first measurement point, and a temperature determining section that determines the temperature of second measurement point based on the temperature of the first measurement point measured by the temperature measuring section and the profile information stored in the storing section.
摘要翻译： 提供一种照明装置，其能够精确地测量透射从光源发射的光的光学部件的温度，而不会阻挡光的光路。 一种照明装置，包括：发光的光源，从所述光源发射的光透过的光学构件，测量所述光学构件上的第一测量点的温度的温度测量部，存储在所述光学构件上的存储部 表示所述第一测量点的温度与所述第二测量点在所述光学部件上并且与所述第一测量点分离的第二测量点的温度之间的相关性的简档信息;以及温度确定部，其确定所述温度 基于由温度测量部测量的第一测量点的温度和存储在存储部分中的简档信息的第二测量点。
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