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1. 发明专利

JPH09127571A DEVICE FOR PREVENTING IMAGE BLUR FOR CAMERA 失效
公开(公告)号：JPH09127571A
公开(公告)日：1997-05-16
申请号：JP27832996
申请日：1996-10-21
申请人： CANON KK
发明人： SUMIO HIROSHI , SHIKAMI MASAO , NAGATA TORU
IPC分类号： G03B17/00 , G03B5/00
摘要： PROBLEM TO BE SOLVED: To obtain a device for performing adequate image blur preventing work in accordance with condition by having a varying means varying the working characteristic of an image blur preventing means in accordance with the operation of a releasing member of a camera. SOLUTION: This device is provided with the varying means varying the working characteristic of the image blur preventing means in accordance with the operation of the releasing member of the camera. That is, a block surrounded by a chain line in a figure constitutes a compensating optical control means 38, and the movable range of the compensating optical system is automatically selected by the means 38. As to the means 38; resistors 33 and 34 output the output voltage of +D1 by a voltage dividing circuit, and the resistors 35 and 36 output the output voltage of +D2 by the voltage dividing circuit. The output voltages of +D1 and +D2 correspond to the limit width of the driving range of the respective compensating optical systems, the limit width of driving limit V±D1 is set in the case a driving range set signal 37 is at a high level, and the limit width of driving limit V±D2 is set in the case of a low level by an analog switch 32.

2. 发明专利

JPH05323438A INTERCHANGEABLE LENS FOR CAMERA AND ADAPTER AND VIBRATION-PROOF CAMERA 失效
公开(公告)号：JPH05323438A
公开(公告)日：1993-12-07
申请号：JP15416792
申请日：1992-05-22
申请人： CANON KK
发明人： SHIKAMI MASAO , IMADA SHINJI
IPC分类号： G03B5/00 , G03B17/00 , G03B17/14
摘要： PURPOSE:To enable a user to recognize the operated state of a vibration-proof device in a state where the user looks through a finder. CONSTITUTION:Reception means 21c-21e and 27 receiving information on the operation of the vibration-proof device 14 which is transmitted from the transmission means 13 and 21c-21e of a mounted interchangeable lens 8, and a display means 32 for displaying the information on the operation of the device 14 which is received by the reception means within the finder are provided to display the information on the operation of the device 14 within the finder.

3. 发明专利

JPH05107614A IMAGE BLUR PREVENTING DEVICE 失效
公开(公告)号：JPH05107614A
公开(公告)日：1993-04-30
申请号：JP29767691
申请日：1991-10-18
申请人： CANON KK
发明人： SHIKAMI MASAO
IPC分类号： G03B17/00
摘要： PURPOSE:To eliminate reduction in operability and an adverse effect to an image when a consecutive photographing mode as a feeding ode is set. CONSTITUTION:The feeding mode of a camera is discriminated, and a changeover means 6 changing over an image blur correcting means 4 into an operating or nonoperating state, according to the result of the discrimination, is provided. When the set, feeding mode of the camera a single photographing mode, an image blur correcting action is useful, and the image blur correcting means 4 is changed over to the operating state, and when the set feeding mode is the consecutive photographing mode, the image blur correcting action is not so required, and the image blur correcting means 4 is changed over to the nonoperating state, by the changeover means 6.

4. 发明专利

JPH01298311A VIBRATION ISOLATION DEVICE FOR OPTICAL EQUIPMENT 失效
公开(公告)号：JPH01298311A
公开(公告)日：1989-12-01
申请号：JP12961988
申请日：1988-05-27
申请人： CANON KK
发明人： SUMIO HIROSHI , NAGATA TORU , SHIKAMI MASAO , WASHISU KOICHI
IPC分类号： G02B27/64
摘要： PURPOSE:To take a picture without any image blur even if a camera is shaken by inputting the output of a vibration sensor to a driving circuit through a low-passing means. CONSTITUTION:The vibration signal from the vibration sensor 11 is converted by an arithmetic circuit 12 into hand shake displacement and only its low-fre quency component is passed through a low-passing circuit 13 and inputted to the driving circuit 14. Namely, the vibration sensor 11 detects disturbance from the side of the driving circuit 14 in addition to a camera shape due to a detected hand shake, but the component of disturbance vibration is in a higher frequency band than the frequency band of the hand shake. Therefore, the low-passing circuit 13 passes only the frequency component of the hand shake to attenuate the disturbance vibration, so a correction optical system can be driven properly according to the hand shake. Consequently, even if the camera shake is caused, photography is performed without any image blur.

5. 发明专利

JPS61256228A PHOTOMETRY APPARATUS 失效
公开(公告)号：JPS61256228A
公开(公告)日：1986-11-13
申请号：JP9825285
申请日：1985-05-09
申请人： CANON KK
发明人： SHIKAMI MASAO
IPC分类号： G01J1/42 , G01J1/44
摘要： PURPOSE:To enable automatic photometry of an object, by obtaining a photometry value from a photometry element arranged on the same optical axis with a sensor. CONSTITUTION:An actuator 7 makes a sensor section 17 with a photometry element 5 and a sensor 6 fixed scan in the direction of the arrow A from the initial position. When the sensor section 17 detects an object 1, the level of infrared rays detected with the sensor 6 exceeds a specified value and a detection circuit 11 generates an output to actuate a Schmitt circuit 12 thereby transmitting a trigger siganl to a latch circuit 14. On the other hand, a photometry circuit 9 performs a photometry at points on the screen during the scanning by the sensor section 17. As the trigger signal is transmitted to the circuit 14, the current output of the photometry circuit 9 is held with a circuit 14. With such an arrangement, the photometry output produced with the shifting of the photometry element 5 to the position of the object, namely, the photometry value for the object 1 is held with the circuit 14. As the sensor section 17 is located at the center of the photographing screen with further scanning thereof, a circuit 13 operates by a signal therefrom 17 to latch a latched value at the center of the screen.

6. 发明专利

JP2000180714A CAMERA, AUXILIARY LIGHT ARRIVAL DECIDING DEVICE AND AUXILIARY LIGHT ARRIVAL INFORMATION RECORDING DEVICE 失效
公开(公告)号：JP2000180714A
公开(公告)日：2000-06-30
申请号：JP35558798
申请日：1998-12-15
申请人： CANON KK
发明人： SHIKAMI MASAO
IPC分类号： G03B13/36 , G02B7/28 , G03B17/00
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of an erroneous decision that auxiliary light has arrived, in the case of auxiliary light photographing an object at a long distance or an infinite distance, when a high-sensitivity image recording medium is in use. SOLUTION: This camera is provided with a 1st deciding means S204 for deciding whether or not the illumination by an auxiliary light illuminating means for illuminating the object effectively has reached the object, a 2nd deciding means S206 for deciding whether or not the object distance at photographing is sufficiently long, and an auxiliary light arrival deciding means S205 for deciding that the auxiliary light has not effectively reached the object, irrespective of the decision results by the 1st deciding means S204, when it is decided by the 2nd deciding means S206 that the object distance is sufficiently long.

7. 发明专利

JPH08110573A CAMERA 失效
公开(公告)号：JPH08110573A
公开(公告)日：1996-04-30
申请号：JP24552394
申请日：1994-10-11
申请人： CANON KK
发明人： SHIKAMI MASAO
IPC分类号： G03B17/28 , G03B17/18 , G03B17/20
摘要： PURPOSE: To provide a camera capable of preventing a failure in photographing caused by inadvertent shutter release by a photographer, even if an aperture switching mechanism is interrupted for some reason in a camera capable of switching an aperture size. CONSTITUTION: A detecting means constituted of a brush 42 attached to an aperture size switching lever 41 and three conductor patterns 43-45 electrically detects the halfway stop of the aperture switching mechanism because of the contact of the brush 42 with the patterns 44 and 45 when the mechanism is stopped halfway between a standard picture size and a panoramic size, and a microcomputer 1 makes the LCD mask of an LCD3 inside a finder flickering state to inform the photographer of the accident of the halfway stop and prevent the failure in photographing.

8. 发明专利

JPH08110572A CAMERA 失效
公开(公告)号：JPH08110572A
公开(公告)日：1996-04-30
申请号：JP24427594
申请日：1994-10-07
申请人： CANON KK
发明人： SHIKAMI MASAO
IPC分类号： G03B17/28 , G03B17/18 , G03B17/20
摘要： PURPOSE: To provide a variable aperture type camera capable of being constituted only by attaching a component related to the switching of an aperture to an invariant aperture camera. CONSTITUTION: Information for discriminating the type of camera, that is whether or not the camera has an aperture switching function, is written in an EEPROM7, software incorporated in a microcomputer 1 is made in common with both types (for the presence and absence of the aperture switching function) and only by attaching a panorama changeover switch 41 to the invariant aperture camera 41, the camera can be used as the variable aperture camera. The microcomputer 1 is operated according to the discrimination information, so that special software for the variable aperture camera is not required.

9. 发明专利

JPH07140514A CAMERA SYSTEM 失效
公开(公告)号：JPH07140514A
公开(公告)日：1995-06-02
申请号：JP28826793
申请日：1993-11-17
申请人： CANON KK
发明人： SHIKAMI MASAO
IPC分类号： G03B7/22 , G03B5/00 , G03B17/14
摘要： PURPOSE:To more accurately actuate an image blurring detection means, etc., by providing a temperature measuring means, and a transmission means for transmitting temperature information by the temperature measuring means to an interchangeable lens, etc., in a camera. CONSTITUTION:A vibration-proof device 14 incorporated in an interchangeable lens main body 8 is constituted of a shake preventing control part 12 performing vibration-proof actions, and a shake preventing CPU 13 controlling the start and the stop of the actions of the control part 12. Then, a lens CPU 16 receives a communication from a body 22 side through contacts for communication 21c and 21d and allows a focusing driving system 17, a zoom driving system 18 and a diaphragm driving system 19 to perform the actions according to a command, and transmits the state in the lens 8 and information concerning the lens 8 to the body 22 side through a contact for communication 21e. A temperature sensor 32 compensates the temperature characteristic of a photometry sensor in a photometry part 23, and transmits it to a lens side through lens communication. Thus, the various kinds of correction using the temperature information is performed for the control part 12 without setting the temperature adjusting means in the lens 8.

10. 发明专利

JPH06308563A IMAGE BLURRING PREVENTION DEVICE 失效
公开(公告)号：JPH06308563A
公开(公告)日：1994-11-04
申请号：JP10102993
申请日：1993-04-27
申请人： CANON KK
发明人： SHIKAMI MASAO
IPC分类号： G01M11/00 , G02B27/64 , G03B5/00 , G03B17/00
摘要： PURPOSE:To bring the operating range of a vibration-proof optical system near to a circular shape by a simple operation area limit arithmetic operation. CONSTITUTION:As for the image blurring prevention device respectively and almost independently driving an image blurring correction optical means ICPU in two mutually nearly orthogonal directions; a displacement detecting means detecting the displacement of a correction optical mechanism ILNS in reference to respective shafts in two directions and a control means ICNT limiting the displacement of the two directions and having data for limit as the table of two directions when the output of the displacement detecting means of the two directions reaches specified relation are provided, and the operating range of the image blurring correction optical system ILNS approximates to the circular shape by splitting the range, and this device rapidly judges whether it is within the operating range or not by comparing the data of boundary with the coordinate of the correction optical system ILNS.

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