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公开(公告)号：US4171884A
公开(公告)日：1979-10-23
申请号：US849198
申请日：1977-11-07
CPC分类号： G03B7/097
摘要： An electrically controlled camera device is disclosed which includes a counter for counting the number of pulses representative of the preferentially selected one exposure condition of a shutter speed and a diaphragm aperture level to control the preferentially selected one exposure condition, and a digital operation circuit for calculating the other exposure condition in the form of a number of digital pulses in accordance with the output pulses from the counter and with digital data signals representative of the sensed scene brightness and the film sensitivity used. During automatic exposure, the number of pulses counted by the counter is controlled by the combination of a pulse generator and a single-throw mechanical switch connected between the pulse generator and the counter, and the number of output digital pulses from the digital operation circuit is counted by another counter for controlling the other exposure condition. During manual exposure, the number of pulses representative of the other exposure condition is controlled by the combination of the pulse generator and another single-throw mechanical switch and counted by the other counter coupled to the pulse generator through an automatic/manual change-over switch and the other single-throw mechanical switch and controlling the other exposure condition. Both the single-throw mechanical switches are arranged to be operated by corresponding push buttons mounted outside the camera housing, and two sets of indicator lamps for displaying both the exposure conditions are arranged within the field of view of the camera finder.
摘要翻译： 公开了一种电控照相机装置，其包括：计数器，用于对表示快门速度和光圈孔径水平的优先选择的一个曝光条件的脉冲数进行计数，以控制优先选择的一个曝光条件;以及数字运算电路，用于计算 根据来自计数器的输出脉冲和数字数据信号代表所感测的场景亮度和所使用的胶片敏感度的数字脉冲数形式的另一曝光条件。 在自动曝光期间，由计数器计数的脉冲数由脉冲发生器和连接在脉冲发生器和计数器之间的单掷机械开关的组合控制，数字运算电路的输出数字脉冲数为 由另一个计数器计数，用于控制其他曝光条件。 在手动曝光期间，表示其他曝光条件的脉冲数由脉冲发生器和另一单掷机械开关的组合来控制，并通过自动/手动转换开关与连接到脉冲发生器的另一个计数器进行计数 和另一个单掷机械开关，并控制其他曝光条件。 单掷机械开关均布置成由安装在照相机壳体外部的相应的按钮操作，并且在摄像机的视野内布置两组用于显示曝光条件的指示灯。
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公开(公告)号：US4265520A
公开(公告)日：1981-05-05
申请号：US964110
申请日：1978-11-27
申请人： Seijiro Tokutomi , Masao Jyojiki , Kazuo Nakamura
发明人： Seijiro Tokutomi , Masao Jyojiki , Kazuo Nakamura
摘要： A focus detecting device in a single lens reflex camera having a lens system and an optical image splitter for splitting an object image into various partial images disposed at a position optically equivalent to that of a film surface in said single lens reflex camera. An array of photo-electric conversion devices are arranged into at least two rows, each row having a plurality of photo-electric conversion elements. The rows are disposed symmetrically with respect to a center line. The device includes an image projecting device for projecting the partial images onto the photo-electric conversion arrays. The projecting device has an optical axis which optically corresponds to said center line, the output of said conversion array defined by ##EQU1## The output of the conversion array has a maximum value when proper focus is obtained. In the equation: n is the number of said photo-electric conversion elements, p is the parameter of the mutual positional relationship of said photo-electric conversion elements for obtaining output difference, m is the element number of said photo-electric conversion elements, i and i' are outputs corresponding to incident light quantities of photo-electric conversion elements in said rows, and l is an integer defined by 1.ltoreq.l.ltoreq.(n-1) and in the range of p.
摘要翻译： 一种具有透镜系统和光学图像分离器的单一透镜反射相机中的焦点检测装置，用于将物体图像分割成与所述单一透镜反射相机中与胶片表面光学相同的位置处的各种部分图像。 光电转换装置的阵列被布置成至少两行，每行具有多个光电转换元件。 行相对于中心线对称设置。 该装置包括用于将部分图像投影到光电转换阵列上的图像投影装置。 投影装置具有光轴对应于所述中心线的光轴，所述转换阵列的输出由
定义。当获得适当的焦点时，转换阵列的输出具有最大值。 在等式中：n是所述光电转换元件的数量，p是用于获得输出差的所述光电转换元件的相互位置关系的参数，m是所述光电转换元件的元件数， i和i'是对应于所述行中的光电转换元件的入射光量的输出，并且l是由1≤n（n-1）定义的整数，并且在p的范围内。 -
公开(公告)号：US4253751A
公开(公告)日：1981-03-03
申请号：US46962
申请日：1979-06-08
申请人： Seijiro Tokutomi , Masao Jyojiki , Kazuo Nakamura
发明人： Seijiro Tokutomi , Masao Jyojiki , Kazuo Nakamura
CPC分类号： G02B7/305
摘要： A focus detection optical system where the image of an object is divided into two images thereof, and the two images are shifted in the opposite directions or one of the two images is shifted. The two images are projected respectively onto two photoelectric conversion element groups adapted to convert the variations in relative position of the two images into electrical signals. A focus detecting device comprises: a calculating circuit for providing outputs V.sub.out1(m), V.sub.out2(m) and V.sub.out3(m) from the outputs of photoelectric conversion elements forming the photoelectric conversion element groups,V.sub.out1(m) =.vertline.log(i'.sub.m /i.sub.m+1).vertline.V.sub.out2(m) =.vertline.log(i.sub.m /i'.sub.m+1).vertline.V.sub.out3(m) =V.sub.out1(m) -V.sub.out2(m),where: m=1, 2, 3, . . . and (n-1), being the number in order of the photoelectric conversion elements, n is the number of the photoelectric conversion elements forming each photoelectric conversion element group, and i.sub.1 through i.sub.n and i'.sub.1 through i'.sub.n are the outputs of the photoelectric conversion elements which are proportional to the quantities of light applied thereto, respectively. A decision circuit is provided for determining the sign of said output V.sub.out3(m) and a circuit counts the number of outputs V.sub.out3(m) having the same sign.
摘要翻译： 一种焦点检测光学系统，其中物体的图像被分成两个图像，并且两个图像在相反方向上移位或两个图像中的一个被移位。 两个图像分别投影到适于将两个图像的相对位置的变化转换为电信号的两个光电转换元件组上。 焦点检测装置包括：计算电路，用于从形成光电转换元件组的光电转换元件的输出Vout1（m）= | log（i'）提供输出Vout1（m），Vout2（m）和Vout3（m） m / im + 1）| Vout2（m）= | log（im / i'm + 1）| Vout3（m）= Vout1（m）-Vout2（m），其中：m = 1,2,3。 。 。 和（n-1）是光电转换元件的数量，n是形成每个光电转换元件组的光电转换元件的数量，i1至in和i'1至i'n的输出是 光电转换元件分别与施加到其上的光量成比例。 提供用于确定所述输出Vout3（m）的符号的判定电路，并且电路对具有相同符号的输出Vout3（m）的数量进行计数。
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公开(公告)号：US4244643A
公开(公告)日：1981-01-13
申请号：US1090
申请日：1979-01-05
申请人： Seijiro Tokutomi
发明人： Seijiro Tokutomi
摘要： A manual setting device is provided in a camera wherein the shutter speed is electrically controlled. The manual setting device can be used as an alternate control in an automatic exposure control camera or may be used in a non-automatic electrically controlled camera. For a camera having an electrically controlled shutter speed, first and second counters are provided. The first counter is preset to a computed or desired shutter speed, and the output of the first counter corresponding to the shutter speed is displayed by LEDs in the viewfinder of the camera. The second counter operates in response to an oscillator, and when the count accumulated in the second counter equals that of the first counter, the shutter bottom curtain electromagnet is operated. The manual setting device is a pulse generator controlled by a switch to preset the counter.
摘要翻译： 在相机中提供了一种手动设置装置，其中快门速度是电控制的。 手动设置装置可以用作自动曝光控制相机中的替代控制，也可用于非自动电控照相机。 对于具有电控快门速度的相机，提供第一和第二计数器。 第一个计数器被预设为计算或所需的快门速度，并且与相机快门速度对应的第一计数器的输出由相机取景器中的LED显示。 第二计数器响应于振荡器操作，并且当累积在第二计数器中的计数等于第一计数器的计数时，快门底幕电磁铁被操作。 手动设置装置是由开关控制的脉冲发生器来预设计数器。
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公开(公告)号：US4192589A
公开(公告)日：1980-03-11
申请号：US849579
申请日：1977-11-08
申请人： Seijiro Tokutomi
发明人： Seijiro Tokutomi
摘要： An abnormal operation warning apparatus is disclosed which is capable of evaluating the photographic result for each photographing process of a camera. The warning apparatus includes a first voltage generator for producing a first voltage signal having a level corresponding to the film sensitivity set before photographing, and a second voltage generator for producing a second voltage signal having a level corresponding to the amount of light exposed on the film for each photographing process. The two voltage signal levels from the first and second voltage generators are compared by a comparator. The photographic effect is evaluated by a discriminator in response to the comparison result, thereby preventing any subsequent abnormal or undesirable photographic result.
摘要翻译： 公开了能够对照相机的每次拍摄处理的拍摄结果进行评价的异常动作警告装置。 警报装置包括：第一电压发生器，用于产生具有与拍摄前设定的胶片敏感度相对应的电平的第一电压信号;以及第二电压发生器，用于产生具有对应于曝光在胶片上的光量的电平的第二电压信号 对于每个拍摄过程。 通过比较器比较来自第一和第二电压发生器的两个电压信号电平。 响应于比较结果，通过鉴别器评估照相效果，从而防止任何后续的异常或不期望的照相结果。
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公开(公告)号：US4172645A
公开(公告)日：1979-10-30
申请号：US819191
申请日：1977-07-26
申请人： Seijiro Tokutomi
发明人： Seijiro Tokutomi
CPC分类号： G03B17/20
摘要： A finder display for both shutter speed and diaphragm priority modes in an SLR camera includes a liquid crystal or the like indicator cell 12 having closely side-by-side Tv and Av scales 13, 14 sharing in common the first E, OVER and UNDER characters 15, 16 and 17 and an illuminable dot indicator 18, such as an LED. The scales are longitudinally offset such that the number of laterally aligned numerals in both scales never exceeds four, which serves to further reduce the display width and its projection into the finder viewing field.
摘要翻译： 在单反相机中，快门速度和光圈优先模式的取景器显示器包括具有紧密并排的电视和尺度13,14的液晶等指示器单元12，其共享第一E，OVER和UNDER字符 15,16和17以及诸如LED的可点亮点指示器18。 鳞片纵向偏移，使得两个尺度中的横向对齐的数字的数量不会超过四个，这用于进一步减小显示宽度并将其投影到取景器视野中。
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公开(公告)号：US4600830A
公开(公告)日：1986-07-15
申请号：US529780
申请日：1983-09-06
申请人： Seijiro Tokutomi , Osamu Shindo , Hideaki Yuda
发明人： Seijiro Tokutomi , Osamu Shindo , Hideaki Yuda
CPC分类号： G02B7/365 , G02B21/244
摘要： A focus detecting device for optical devices such as cameras and microscopes, which like the human eye, can detect a point of focus in response not only to the contrast of an object but also to differences in hue. The invention provides a device which provides a measurement of contrast from an image projected onto sensors separated according to different ranges of wavelength. Focus is detected by the sensors as they measure the differences in the intensity of incident light reflected from an object under focus. The sensors also provide a measure of contrast in response to different wavelength ranges.
摘要翻译： 用于诸如相机和显微镜的光学装置的焦点检测装置，其像人眼一样，可以不仅响应对象的对比度而且还可以检测到对焦点的焦点，而且还可以响应于色相的差异。 本发明提供一种装置，其提供从投影到根据不同波长范围分离的传感器上的图像的对比度的测量。 当传感器测量从焦点对象反射的入射光的强度差异时，传感器会检测到焦点。 传感器还提供响应于不同波长范围的对比度的量度。
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公开(公告)号：US4384770A
公开(公告)日：1983-05-24
申请号：US278030
申请日：1981-06-29
申请人： Seijiro Tokutomi , Ryota Ogawa , Michiro Ohishi , Kazuo Nakamura , Masao Jyojiki , Satoru Tachihara
发明人： Seijiro Tokutomi , Ryota Ogawa , Michiro Ohishi , Kazuo Nakamura , Masao Jyojiki , Satoru Tachihara
CPC分类号： G02B7/34
摘要： A focus detecting device having two concave mirrors for reforming the image of an object which is formed between a lens and the focal plane of lens, and for dividing said image two same secondary images. Two light receiving element arrays are provided in the image forming planes of the secondary images. A signal processing circuit subjects the outputs of the light receiving element arrays to produce a signal indicating whether or not the lens is focussed on the object. By means of the two concave mirrors adapted to form said secondary images, the two secondary images are shifted in the opposite directions on the light receiving element arrays at the time of defocussing so that the difference between the outputs of the two light receiving element arrays is not zero. At the time of proper focus the two secondary images are located at equivalent positions on said light receiving element arrays so that the difference between the outputs of the two light receiving element arrays is zero. A signal processing circuit produces a signal indicating the establishment of the proper focus.
摘要翻译： 一种焦点检测装置，具有两个凹面镜，用于对形成在透镜和透镜焦平面之间的物体的图像进行重构，并且用于将所述图像分成两个相同的二次图像。 在次级图像的图像形成平面中设置两个光接收元件阵列。 信号处理电路使受光元件阵列的输出端产生指示透镜是否聚焦在物体上的信号。 借助于适于形成所述二次图像的两个凹面镜，在聚焦时两个次要图像在光接收元件阵列上沿相反方向移位，使得两个光接收元件阵列的输出之间的差为 不为零。 在适当的对焦时，两个次要图像位于所述光接收元件阵列上的等同位置，使得两个光接收元件阵列的输出之间的差为零。 信号处理电路产生指示正确聚焦的建立的信号。
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公开(公告)号：US4293206A
公开(公告)日：1981-10-06
申请号：US114174
申请日：1980-01-22
摘要： A camera including an automatic focalizing device with which the camera will automatically focus only upon objects within a predetermined range set by the photographer. The wiper of a potentiometer is coupled to the lens so that its operative position is determined by the position of the lens. The wiper is also electrically coupled to respective positive and negative comparison inputs of first and second comparators to the other inputs of which are applied voltages from a second potentiometer which are determinative of the selected range at which focalization may be achieved. The combined outputs of the comparators are coupled to the control input of an analog switch device coupled between the output of a focus detector and the control circuit of a lens positioning motor.
摘要翻译： 一种包括自动聚焦装置的照相机，照相机将自动聚焦在由摄影者设定的预定范围内的物体上。 电位计的擦拭器耦合到透镜，使得其操作位置由透镜的位置确定。 擦拭器还电耦合到第一和第二比较器的相应的正和负比较输入，其另一个输入是来自第二电位计的施加电压，该第二电位计决定可以实现聚焦的选定范围。 比较器的组合输出耦合到耦合在焦点检测器的输出和透镜定位电动机的控制电路之间的模拟开关装置的控制输入。
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公开(公告)号：US4258989A
公开(公告)日：1981-03-31
申请号：US33067
申请日：1979-04-25
申请人： Seijiro Tokutomi , Ryota Ogawa , Michiro Ohishi , Kazuo Nakamura , Masao Jyojiki , Satoru Tachihara
发明人： Seijiro Tokutomi , Ryota Ogawa , Michiro Ohishi , Kazuo Nakamura , Masao Jyojiki , Satoru Tachihara
CPC分类号： G02B7/34
摘要： A focus detecting device having a release lens for reforming the image of an object which is formed between a lens and the focal plane of the lens. A mirror is provided between the release lens and an image reforming plane for dividing the primary image into two secondary images. Two light receiving element arrays provided in the image forming planes of said secondary images provide outputs to a signal processing circuit for comparison to produce a signal indicating whether or not the lens is focussed on the object. The mirror for dividing the primary image into two secondary images, shifts the two secondary images in opposite directions on the light receiving element arrays at the time of defocussing so that the difference between the outputs of said two light receiving element arrays is not zero. At the time of focussing, the two secondary images are located at equivalent positions on the light receiving element arrays so that the difference between the outputs of said two light receiving element arrays is zero.
摘要翻译： 一种聚焦检测装置，其具有用于对形成在透镜和透镜的焦平面之间的物体的图像进行重整的释放镜头。 在释放镜头和用于将主图像分割成两个二次图像的图像重构平面之间设置镜子。 设置在所述二次图像的图像形成平面中的两个光接收元件阵列向信号处理电路提供输出以进行比较，以产生指示透镜是否聚焦在对象上的信号。 用于将主图像分割成两个次级图像的反射镜，在分焦时使光接收元件阵列上的两个次级图像在相反方向上移位，使得所述两个光接收元件阵列的输出之间的差不为零。 在聚焦时，两个次要图像位于光接收元件阵列上的等效位置，使得所述两个光接收元件阵列的输出之间的差为零。
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