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1. 发明专利

DE3632634A1 未知
公开(公告)号：DE3632634A1
公开(公告)日：1987-04-02
申请号：DE3632634
申请日：1986-09-25
申请人： CANON KK
发明人： KUSHIBIKI NOBUO , NOSE NORIYUKI , NAKAJIMA TOSHIYUKI , BABA TAKESHI , MATSUGU MASAKAZU , NIWA YUKICHI
IPC分类号： G02B3/12 , G02B3/14 , G02B26/08 , G11B7/09 , B29D11/00 , C08L83/04 , G02B1/04 , G11B7/12

2. 发明专利

DE3712146A1 未知
公开(公告)号：DE3712146A1
公开(公告)日：1987-10-15
申请号：DE3712146
申请日：1987-04-10
申请人： CANON KK
发明人： NOSE NORIYUKI , NAKAJIMA TOSHIYUKI , KAWAKAMI EIGO , BABA TAKESHI , KUSHIBIKI NOBUO , MATSUGU MASAKAZU , NIWA YUKICHI
IPC分类号： B29C33/46 , B29C37/00 , B29C43/50 , B29D11/00
摘要： A process for producing an optical element wherein an optical molding is formed by using a mold and thereafter released from the mold by supplying a gas to the boundary between the mold surface and the optical molding. In the process, no localized external force is applied to the optical molding during the release thereof, and therefore undesirable deformation or flaws of the optical molding are not caused.

3. 发明专利

DE3546211A1 未知
公开(公告)号：DE3546211A1
公开(公告)日：1986-07-03
申请号：DE3546211
申请日：1985-12-27
申请人： CANON KK
发明人： SUDA SHIGEYUKI , BABA TAKESHI
IPC分类号： G02B15/14 , G02B15/16 , G02B15/22 , G02F1/01 , G02F1/13 , G02B15/00 , G02B26/08 , G02F1/00 , G02F1/19
摘要： A zoom lens having a plurality of lens units at least one of which includes a variable refractive index element for zooming and focusing purpose. The refractive index of the variable refractive index element of the zoom lens is varied by an output from an auto-focus detection device.

4. 发明专利

GB2112247B COLOURED IMAGE READING 未知
公开(公告)号：GB2112247B
公开(公告)日：1985-07-17
申请号：GB8229277
申请日：1982-10-13
申请人： CANON KK
发明人： BABA TAKESHI , MATSUOKA KAZUHIKO
IPC分类号： H04N1/48 , H04N1/46 , G02B27/10
摘要： A colored image reading apparatus has a light source for illuminating the surface of an original, a transmitting optical system for dividing the light beam from the surface of the original into two beams of short wavelength zone and long wavelength zone and transmitting them to a light detector, a processing circuit for effecting an operation between the signals from the light detector and obtaining a plurality of electrical signals, and a converter circuit for converting the plurality of electrical signals into signals corresponding to respective colors, and is capable of well discriminating and reading four colors, black, blue, red and white, by selecting to predetermined values the wavelength lambda 'b of the overall spectral characteristic on the short wavelength zone side including all of the spectral characteristics of the light source, the transmitting optical system and the light detector relative to the maximum value of the transmission factor and the wavelength lambda 'r of the overall spectral characteristic on the long wavelength zone side relative to the maximum value of the transmission factor.

5. 发明专利

DE3644225A1 未知
公开(公告)号：DE3644225A1
公开(公告)日：1987-07-02
申请号：DE3644225
申请日：1986-12-23
申请人： CANON KK
发明人： KUSHIBIKI NOBUO , NOSE NORIYUKI , BABA TAKESHI , NAKAJIMA TOSHIYUKI , OKUDA MASAHIRO
IPC分类号： G02B3/00 , G02B1/00 , G02B3/12 , G02B3/14 , G02B26/08 , G02B26/00 , G02B15/00

6. 发明专利

DE3237977A1 未知
公开(公告)号：DE3237977A1
公开(公告)日：1983-05-11
申请号：DE3237977
申请日：1982-10-13
申请人： CANON KK
发明人： BABA TAKESHI , MATSUOKA KAZUHIKO
IPC分类号： H04N1/48 , H04N1/46
摘要： A colored image reading apparatus has a light source for illuminating the surface of an original, a transmitting optical system for dividing the light beam from the surface of the original into two beams of short wavelength zone and long wavelength zone and transmitting them to a light detector, a processing circuit for effecting an operation between the signals from the light detector and obtaining a plurality of electrical signals, and a converter circuit for converting the plurality of electrical signals into signals corresponding to respective colors, and is capable of well discriminating and reading four colors, black, blue, red and white, by selecting to predetermined values the wavelength lambda 'b of the overall spectral characteristic on the short wavelength zone side including all of the spectral characteristics of the light source, the transmitting optical system and the light detector relative to the maximum value of the transmission factor and the wavelength lambda 'r of the overall spectral characteristic on the long wavelength zone side relative to the maximum value of the transmission factor.

7. 发明专利

DE3636951A1 未知
公开(公告)号：DE3636951A1
公开(公告)日：1987-06-25
申请号：DE3636951
申请日：1986-10-30
申请人： CANON KK
发明人： BABA TAKESHI , NIWA YUKICHI , YOSHII MINORU , WATANABE TAKAKO
IPC分类号： G02B7/36 , H04N5/232 , G02B7/11
摘要： In an automatic focusing apparatus, a focus detecting device having detecting means for detecting the width of the edge part of the image of an object to be photographed and discriminating means for discriminating a focused state on the basis of the size of the detected width is arranged to determine by the discriminating means the apparatus to be out of focus when the width of the edge part of the object image is wide and to be in focus when the width of the edge part is narrow, so that the focus detecting device can operate without being affected by difference in the kind and the contrast of the object to be photographed.

8. 发明专利

DE3424068A1 未知
公开(公告)号：DE3424068A1
公开(公告)日：1985-05-02
申请号：DE3424068
申请日：1984-06-29
申请人： CANON KK
发明人： IMATAKI HIROYUKI , SERIZAWA TAKASHI , USUI MASAYUKI , BABA TAKESHI , NOSE HIROYASU
IPC分类号： G02B3/14 , G02B26/08 , G02B1/00 , G02B3/00 , G02B5/10
摘要： An optical device having a variable optical surface is given by the combination of an elastic body and a relatively rigid member having an opening and disposed to contact the elastic body to expose a part of the surface of the elastic body. The exposed surface part forms a variable optical surface, the shape of which is changed by deforming the elastic body to vary the focal length.

9. 发明专利

GB2112247A COLOURED IMAGE READING 未知
公开(公告)号：GB2112247A
公开(公告)日：1983-07-13
申请号：GB8229277
申请日：1982-10-13
申请人： CANON KK
发明人： BABA TAKESHI , MATSUOKA KAZUHIKO
IPC分类号： H04N1/48 , H04N1/46 , G02B27/10
摘要： A colored image reading apparatus has a light source for illuminating the surface of an original, a transmitting optical system for dividing the light beam from the surface of the original into two beams of short wavelength zone and long wavelength zone and transmitting them to a light detector, a processing circuit for effecting an operation between the signals from the light detector and obtaining a plurality of electrical signals, and a converter circuit for converting the plurality of electrical signals into signals corresponding to respective colors, and is capable of well discriminating and reading four colors, black, blue, red and white, by selecting to predetermined values the wavelength lambda 'b of the overall spectral characteristic on the short wavelength zone side including all of the spectral characteristics of the light source, the transmitting optical system and the light detector relative to the maximum value of the transmission factor and the wavelength lambda 'r of the overall spectral characteristic on the long wavelength zone side relative to the maximum value of the transmission factor.

10. 发明专利

DE3780900T2 未知
公开(公告)号：DE3780900T2
公开(公告)日：1992-12-24
申请号：DE3780900
申请日：1987-10-07
申请人： CANON KK
发明人： BABA TAKESHI , NIWA YUKICHI
IPC分类号： G02B7/28 , G03B13/36 , H04N5/232
摘要： An automatic focusing device which is arranged to perform a focusing action by detecting the peak value of a high frequency component of a video signal obtained from within a focus detecting area set on the image sensing plane of an image sensor and by driving a photo taking optical system in such a way as to increase the detected peak value comprises: a peak position detecting circuit which locates a position on the image sensing plane at which the peak value of the high frequency component of the video signal is detected; and a gate control circuit which changes the position of the focus detecting area in accordance with the detected peak position which is located by the peak position detecting circuit.

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