公开(公告)号：US07692694B2

公开(公告)日：2010-04-06

申请号：US12109844

申请日：2008-04-25

申请人： Akira Shiga ,  Toshinori Orito

发明人： Akira Shiga ,  Toshinori Orito

IPC分类号： H04N5/235

CPC分类号： H04N5/243 ,  H04N5/2352

摘要： A digital camera is disclosed to reduce shutter lag and improved accuracy in exposure. The digital camera includes an image pickup lens optical system, an iris, an image pickup device, a hold/gain control circuit, a luminance level detector, an exposure control circuit, a device control circuit and so forth. The exposure control circuit discriminates based on a luminance level supplied thereto from the luminance level detector whether or not appropriate exposure is performed. Then, based on a result of the discrimination, the exposure control circuit arithmetically operates three values of the numerical aperture of the iris, the shutter speed of an electronic shutter of the image pickup device and the gain of the hold/gain control circuit which are necessary to perform appropriate exposure. The exposure control circuit arithmetically operates iris control data, electronic shutter control data and gain control data necessary for the arithmetically operated exposure amounts to be individually reflected on the iris, the electronic shutter of the image pickup device and the hold/gain control circuit.

摘要翻译： 公开了一种数码相机来减少快门滞后并提高曝光精度。 数字照相机包括摄像镜头光学系统，光圈，图像拾取装置，保持/增益控制电路，亮度电平检测器，曝光控制电路，装置控制电路等。 曝光控制电路基于从亮度级检测器提供的亮度级别来判别是否进行适当的曝光。 然后，基于判别结果，曝光控制电路算术地操作光圈的数值孔径的三个值，图像拾取装置的电子快门的快门速度和保持/增益控制电路的增益 必须进行适当的曝光。 曝光控制电路算术地操作光圈控制数据，电子快门控制数据和用于算术操作的曝光量所需的增益控制数据被单独地反射在光圈，图像拾取装置的电子快门和保持/增益控制电路上。

公开(公告)号：US20050179779A1

公开(公告)日：2005-08-18

申请号：US10399620

申请日：2002-08-14

申请人： Yoshikazu Oochi ,  Masakazu Koyanagi ,  Kenichi Sanpei ,  Takahiro Koyama ,  Toshinori Orito

发明人： Yoshikazu Oochi ,  Masakazu Koyanagi ,  Kenichi Sanpei ,  Takahiro Koyama ,  Toshinori Orito

IPC分类号： G03B13/36 ,  G02B7/28 ,  G02B7/32 ,  G02B7/36 ,  G03B11/00 ,  G03B15/02 ,  H04N5/225 ,  H04N5/232 ,  H04N5/33 ,  H04N101/00

CPC分类号： H04N5/23212 ,  G02B7/32

摘要： The present invention concerns a digital still camera (1). This camera carries out a framing process by using an infrared pick-up image and a visible light photographing by using a flash or a low speed shutter in a still image pick-up process. Upon automatic focusing, the light of an auxiliary visible light source (23) for automatic focusing is emitted to apply the visible lights and carry out an automatic focusing process. In the digital still camera, the framing process can be carried out which allows the image of a subject which is to be picked up to be displayed on a finder even under an environment of low illuminance such as photographing a dark place and a user to recognize the contents of the photographed image. Further, after that, even when the visible light photographing is carried out through the irradiation of flash or the low speed shutter, an accurate focusing can be realized.

摘要翻译： 本发明涉及数字静态照相机（1）。 该摄像机通过在静止图像拾取处理中使用闪光灯或低速快门来使用红外拾取图像和可见光拍摄来执行成帧处理。 在自动聚焦时，发射用于自动聚焦的辅助可见光源（23）的光以施加可见光并进行自动聚焦处理。 在数字静态照相机中，可以进行成帧处理，即使在诸如拍摄暗处和用户之间的低照度的环境下，即使被拾取的被摄体的图像也能够在取景器上显示 拍摄图像的内容。 此外，此后，即使通过闪光或低速快门的照射进行可见光拍摄，也能够实现精确的聚焦。

公开(公告)号：US07224396B2

公开(公告)日：2007-05-29

申请号：US10399620

申请日：2002-08-14

申请人： Yoshikazu Oochi ,  Masakazu Koyanagi ,  Kenichi Sanpei ,  Takahiro Koyama ,  Toshinori Orito

发明人： Yoshikazu Oochi ,  Masakazu Koyanagi ,  Kenichi Sanpei ,  Takahiro Koyama ,  Toshinori Orito

IPC分类号： H04N5/222

CPC分类号： H04N5/23212 ,  G02B7/32

摘要： The present invention concerns a digital still camera (1). This camera carries out a framing process by using an infrared pick-up image and a visible light photographing by using a flash or a low speed shutter in a still image pick-up process. Upon automatic focusing, the light of an auxiliary visible light source (23) for automatic focusing is emitted to apply the visible lights and carry out an automatic focusing process. In the digital still camera, the framing process can be carried out which allows the image of a subject which is to be picked up to be displayed on a finder even under an environment of low illuminance such as photographing a dark place and a user to recognize the contents of the photographed image. Further, after that, even when the visible light photographing is carried out through the irradiation of flash or the low speed shutter, an accurate focusing can be realized.

摘要翻译： 本发明涉及数字静态照相机（1）。 该摄像机通过在静止图像拾取处理中使用闪光灯或低速快门来使用红外拾取图像和可见光拍摄来执行成帧处理。 在自动聚焦时，发射用于自动聚焦的辅助可见光源（23）的光以施加可见光并进行自动聚焦处理。 在数字静态照相机中，可以进行成帧处理，即使在诸如拍摄暗处和用户之间的低照度的环境下，即使被拾取的被摄体的图像也能够在取景器上显示 拍摄图像的内容。 此外，此后，即使通过闪光或低速快门的照射进行可见光拍摄，也能够实现精确的聚焦。

公开(公告)号：US07511740B2

公开(公告)日：2009-03-31

申请号：US10496006

申请日：2003-09-25

申请人： Akira Shiga ,  Toshinori Orito

发明人： Akira Shiga ,  Toshinori Orito

IPC分类号： H04N5/235

CPC分类号： H04N5/243 ,  H04N5/2352

摘要： A digital camera with reduced shutter lag and improved exposure accuracy, and including image pickup lens optics, an iris, an image pickup, a hold/gain control circuit, a luminance level detector, an exposure control circuit, and a control circuit. The exposure control circuit discriminates, based on a luminance level supplied from the luminance level detector, whether or not appropriate exposure is performed. Then, based on the discrimination result, the exposure control circuit arithmetically operates three values of numerical aperture of the iris, shutter speed of an electronic shutter of the image pickup, and gain of the hold/gain control circuit, which are necessary for appropriate exposure. The exposure control circuit arithmetically operates iris control data, electronic shutter control data, and gain control data necessary for the arithmetically operated exposure amounts to be individually reflected on the iris, the electronic shutter of the image pickup, and the hold/gain control circuit.

摘要翻译： 具有降低的快门滞后和改善的曝光精度的数码相机，并且包括图像拾取镜头光学元件，光圈，图像拾取器，保持/增益控制电路，亮度电平检测器，曝光控制电路和控制电路。 曝光控制电路基于从亮度级检测器提供的亮度级别来判别是否进行适当的曝光。 然后，根据鉴别结果，曝光控制电路算术地操作光圈的数值孔径，图像拾取的电子快门的快门速度和适当曝光所需的保持/增益控制电路的增益的三个值 。 曝光控制电路对光圈，电子快门和保持/增益控制电路进行单独反映的算术运算曝光量所需的光圈控制数据，电子快门控制数据和增益控制数据进行算术运算。

公开(公告)号：US20080204575A1

公开(公告)日：2008-08-28

申请号：US12109844

申请日：2008-04-25

申请人： Akira Shiga ,  Toshinori Orito

发明人： Akira Shiga ,  Toshinori Orito

IPC分类号： H04N5/235

CPC分类号： H04N5/243 ,  H04N5/2352

摘要： A digital camera is disclosed to reduce shutter lag and improved accuracy in exposure. The digital camera includes an image pickup lens optical system, an iris, an image pickup device, a hold/gain control circuit, a luminance level detector, an exposure control circuit, a device control circuit and so forth. The exposure control circuit discriminates based on a luminance level supplied thereto from the luminance level detector whether or not appropriate exposure is performed. Then, based on a result of the discrimination, the exposure control circuit arithmetically operates three values of the numerical aperture of the iris, the shutter speed of an electronic shutter of the image pickup device and the gain of the hold/gain control circuit which are necessary to perform appropriate exposure. The exposure control circuit arithmetically operates iris control data, electronic shutter control data and gain control data necessary for the arithmetically operated exposure amounts to be individually reflected on the iris, the electronic shutter of the image pickup device and the hold/gain control circuit.

摘要翻译： 公开了一种数码相机来减少快门滞后并提高曝光精度。 数字照相机包括摄像镜头光学系统，光圈，图像拾取装置，保持/增益控制电路，亮度电平检测器，曝光控制电路，装置控制电路等。 曝光控制电路基于从亮度级检测器提供的亮度级别来判别是否进行适当的曝光。 然后，基于判别结果，曝光控制电路算术地操作光圈的数值孔径的三个值，图像拾取装置的电子快门的快门速度和保持/增益控制电路的增益 必须进行适当的曝光。 曝光控制电路算术地操作光圈控制数据，电子快门控制数据和用于算术操作的曝光量所需的增益控制数据被单独地反射在光圈，图像拾取装置的电子快门和保持/增益控制电路上。

公开(公告)号：US20050062874A1

公开(公告)日：2005-03-24

申请号：US10496006

申请日：2003-09-25

申请人： Akira Shiga ,  Toshinori Orito

发明人： Akira Shiga ,  Toshinori Orito

IPC分类号： H04N5/235 ,  H04N101/00

CPC分类号： H04N5/243 ,  H04N5/2352

摘要： A digital camera with reduced shutter lag and improved exposure accuracy, and including image pickup lens optics, an iris, an image pickup, a hold/gain control circuit, a luminance level detector, an exposure control circuit, and a control circuit. The exposure control circuit discriminates, based on a luminance level supplied from the luminance level detector, whether or not appropriate exposure is performed. Then, based on the discrimination result, the exposure control circuit arithmetically operates three values of numerical aperture of the iris, shutter speed of an electronic shutter of the image pickup, and gain of the hold/gain control circuit, which are necessary for appropriate exposure. The exposure control circuit arithmetically operates iris control data, electronic shutter control data, and gain control data necessary for the arithmetically operated exposure amounts to be individually reflected on the iris, the electronic shutter of the image pickup, and the hold/gain control circuit.

摘要翻译： 具有降低的快门滞后和改善的曝光精度的数码相机，并且包括图像拾取镜头光学元件，光圈，图像拾取器，保持/增益控制电路，亮度电平检测器，曝光控制电路和控制电路。 曝光控制电路基于从亮度级检测器提供的亮度级别来判别是否进行适当的曝光。 然后，根据鉴别结果，曝光控制电路算术地操作光圈的数值孔径，图像拾取的电子快门的快门速度和适当曝光所需的保持/增益控制电路的增益的三个值 。 曝光控制电路对光圈，电子快门和保持/增益控制电路进行单独反映的算术运算曝光量所需的光圈控制数据，电子快门控制数据和增益控制数据进行算术运算。