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公开(公告)号：US4812912A
公开(公告)日：1989-03-14
申请号：US50390
申请日：1987-05-18
申请人： Takashi Iida , Masatoshi Itoh , Hidenori Fukuoka , Takeya Tsukamoto , Masataka Hamada , Kenji Ishibashi , Hiroshi Ootsuka
发明人： Takashi Iida , Masatoshi Itoh , Hidenori Fukuoka , Takeya Tsukamoto , Masataka Hamada , Kenji Ishibashi , Hiroshi Ootsuka
CPC分类号： H04N5/23293 , G02B7/34
摘要： A focus detection condition display device suitable for use in a camera provided with an electronic viewfinder. The pattern signal corresponding to a focus detection zone on which focus detection is conducted by a focus detecting system is superimposed on the video signal of the object field and said signal is output to an electronic viewfinder. When the focus detection has become impracticable for such reason as lack of contrast of the object field, or focusing has become impracticable because of the object coming too close to the camera, an alarm is issued by the pattern corresponding to a focus detection zone displayed on the electronic viewfinder displaying in a manner different from that ordinarily used.
摘要翻译： 一种适用于配有电子取景器的照相机中的焦点检测条件显示装置。 对应于由焦点检测系统进行焦点检测的焦点检测区域的图案信号被叠加在物场的视频信号上，并且所述信号被输出到电子取景器。 当焦点检测由于物体的对比度不足等原因而变得不切实际或由于物体太靠近照相机而聚焦变得不可行时，通过对应于在显示器上显示的焦点检测区域的图案来发出警报 电子取景器以与通常使用的不同的方式显示。
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公开(公告)号：US5724619A
公开(公告)日：1998-03-03
申请号：US743182
申请日：1996-11-05
摘要： An auto focus camera includes a focus detecting circuit, a lens driving circuit for driving a taking lens to an in-focus position based on a focus detection result, a starting signal outputting circuit for outputting a starting signal which starts a focusing operation, an operating member to be operated by a user after the starting signal is outputted, and a controlling circuit for controlling the lens driving circuit so as to drive the taking lens in manners different between before and after an operation of the operation member.
摘要翻译： 自动对焦照相机包括：聚焦检测电路，用于根据焦点检测结果将拍摄镜头驱动到对焦位置的镜头驱动电路，用于输出开始聚焦操作的起始信号的起动信号输出电路， 输出启动信号后由用户操作的构件，以及控制电路，用于控制透镜驱动电路，以便在操作构件的操作之前和之后以不同的方式驱动摄影镜头。
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公开(公告)号：US5613166A
公开(公告)日：1997-03-18
申请号：US481204
申请日：1995-06-07
摘要： An auto focus camera includes a focus detecting circuit, a lens driving circuit for driving a taking lens to an in-focus position based on a focus detection result, a starting signal outputting circuit for outputting a starting signal which starts a focusing operation, an operating member to be operated by a user after the starting signal is outputted, and a controlling circuit for controlling the lens driving circuit so as to drive the taking lens in manners different between before and after an operation of the operation member.
摘要翻译： 自动对焦照相机包括：聚焦检测电路，用于根据焦点检测结果将拍摄镜头驱动到对焦位置的镜头驱动电路，用于输出开始聚焦操作的起始信号的起动信号输出电路， 输出启动信号后由用户操作的构件，以及控制电路，用于控制透镜驱动电路，以便在操作构件的操作之前和之后以不同的方式驱动摄影镜头。
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公开(公告)号：US5285231A
公开(公告)日：1994-02-08
申请号：US797960
申请日：1991-11-26
CPC分类号： G03B7/0807
摘要： A camera according to the present invention comprises a taking lens whose focal length is variable. A focal length thereof is determined based on a subject distance measured by a distance measuring circuit and a relation between a subject distance and a focal length previously stored in a memory or according to a manual operation. The relation stored in the memory is changed based on a focal length determined.
摘要翻译： 根据本发明的照相机包括焦距可变的拍摄镜头。 基于由距离测量电路测量的被摄体距离以及先前存储在存储器中的被摄体距离和焦距之间的关系或根据手动操作来确定其焦距。 基于确定的焦距来改变存储在存储器中的关系。
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公开(公告)号：US5634140A
公开(公告)日：1997-05-27
申请号：US684138
申请日：1996-07-19
CPC分类号： G03B7/0807
摘要： A camera according to the present invention comprises a taking lens whose focal length is variable. A focal length thereof is determined based on a subject distance measured by a distance measuring circuit and a relation between a subject distance and a focal length previously stored in a memory or according to a manual operation. The relation stored in the memory is changed based on a focal length determined.
摘要翻译： 根据本发明的照相机包括焦距可变的拍摄镜头。 基于由距离测量电路测量的被摄体距离以及先前存储在存储器中的被摄体距离和焦距之间的关系或根据手动操作来确定其焦距。 基于确定的焦距来改变存储在存储器中的关系。
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公开(公告)号：US5572278A
公开(公告)日：1996-11-05
申请号：US307150
申请日：1994-09-16
CPC分类号： G03B7/0807
摘要： A camera according to the present invention comprises a taking length whose focal length is variable. A focal length thereof is determined based on a subject distance measured by a distance measuring circuit and a relation between a subject distance and a focal length previously stored in a memory or according to a manual operation. The relation stored in the memory is changed based on a focal length determined.
摘要翻译： 根据本发明的照相机包括焦距可变的拍摄长度。 基于由距离测量电路测量的被摄体距离以及先前存储在存储器中的被摄体距离和焦距之间的关系或根据手动操作来确定其焦距。 基于确定的焦距来改变存储在存储器中的关系。
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公开(公告)号：US5001507A
公开(公告)日：1991-03-19
申请号：US284670
申请日：1988-12-15
申请人： Takashi Iida , Masatoshi Itoh , Hidenori Fukuoka , Takeya Tsukamoto , Masataka Hamada , Kenji Ishibashi , Hiroshi Ootsuka
发明人： Takashi Iida , Masatoshi Itoh , Hidenori Fukuoka , Takeya Tsukamoto , Masataka Hamada , Kenji Ishibashi , Hiroshi Ootsuka
CPC分类号： H04N5/23293 , G02B7/34
摘要： A focus detection condition display device suitable for use in a camera provided with an electronic viewfinder. The pattern signal corresponding to a focus detection zone on which focus detection is conducted by a focus detecting system is superimposed on the video signal of the object field and said signal is output to an electronic viewfinder. When the focus detection has become impracticable for such reason as lack of contrast of the object field, or focusing has become impracticable because of the object coming too close to the camera, an alarm is issued by the pattern corresponding to a focus detection zone displayed on the electronic viewfinder displaying in a manner different from that ordinarily used.
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公开(公告)号：US4768052A
公开(公告)日：1988-08-30
申请号：US85410
申请日：1987-08-14
CPC分类号： G02B7/38
摘要： A focus detecting device capable of correcting an error, between an in-focus position of a photographic lens detected by a focus detecting means and an image field position affording the best image. Focus detection is made using plural focus detecting areas provided on and off the optical axis of the photographic lens, to obtain an in-focus position. Then, the thus-obtained in-focus position of the photographic lens is corrected using an appropriate correction value out of those preset and stored in a ROM in the lens according to whether the focus detecting area used in the focus detection is an axial or off-axial area, or according to the focal length of the photographic lens as well as the photographing mode. And the photographic lens is thereby set to the best image field position.
摘要翻译： 一种能够校正由焦点检测装置检测到的摄影镜头的对焦位置和提供最佳图像的图像场位置之间的误差的焦点检测装置。 利用在摄影镜头的光轴上设置的多个焦点检测区域进行聚焦检测，以获得对焦位置。 然后，根据在焦点检测中使用的焦点检测区域是轴向还是关闭，利用预先设定的并存储在镜头中的ROM中的适当的校正值来校正由此获得的摄影镜头的对焦位置 同轴面积，或根据摄影镜头的焦距以及拍摄模式。 因此，摄影镜头被设置为最佳图像场位置。
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公开(公告)号：US4878079A
公开(公告)日：1989-10-31
申请号：US226932
申请日：1988-08-01
CPC分类号： G02B7/38
摘要： A focus detecting device capable of correcting an error, between an in-focus position of a photographic lens detected by a focus detecting means and an image field position affording the best image. Focus detection is made using plural focus detecting areas provided on and off the optical axis of the photographic lens, to obtain an in-focus position. Then, the thus-obtained in-focus position of the photographic lens is corrected using an appropriate correction value out of those preset and stored in a ROM in the lens according to whether the focus detecting area used in the focus detection is an axial or off-axial area, or according to the focal length of the photographic lens as well as the photographing mode. And the photographic lens is thereby set to the best image field position.
摘要翻译： 一种能够校正由焦点检测装置检测到的摄影镜头的对焦位置和提供最佳图像的图像场位置之间的误差的焦点检测装置。 利用在摄影镜头的光轴上设置的多个焦点检测区域进行聚焦检测，以获得对焦位置。 然后，根据在焦点检测中使用的焦点检测区域是轴向还是关闭，利用预先设定的并存储在镜头中的ROM中的适当的校正值来校正由此获得的摄影镜头的对焦位置 同轴面积，或根据摄影镜头的焦距以及拍摄模式。 因此，摄影镜头被设置为最佳图像场位置。
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公开(公告)号：US4931821A
公开(公告)日：1990-06-05
申请号：US368417
申请日：1989-06-19
申请人： Masataka Hamada , Tokuji Ishida , Yasuaki Akada
发明人： Masataka Hamada , Tokuji Ishida , Yasuaki Akada
CPC分类号： G02B7/36
摘要： An automatic focus adjusting apparatus for adjusting automatically a focus condition of an objective lens includes a CCD array for receiving light from an object and producing a accumulated charge signal representing the accumulated charge. Using the accumulated charge signal it is detected whether or not the brightness of the object is above a predetermined level, and at the same time, the focusing condition of the objective lens is calculated. Using the calculated result, the focusing condition of the objective lens is adjusted in a controlled manner such that: when the brightness of the object is above the predetermined level, the objective lens moves even during the CCD array is operated to carry out the charge accumulation; but when the brightness of the object is below the predetermined level, the CCD array is operated only during when the objective lens is making no movement.
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