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1. 发明专利

JP2003107561A FINDER DEVICE AND OPTICAL EQUIPMENT HAVING THE SAME 审中-公开
公开(公告)号：JP2003107561A
公开(公告)日：2003-04-09
申请号：JP2001297016
申请日：2001-09-27
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G03B13/12 , G03B11/04
摘要： PROBLEM TO BE SOLVED: To obtain a finder device which can securely prevent internal-surface reflection and a light-beam leak by providing a freely expansible and contractible elastic member in an optical system and to provide optical equipment having the finder device. SOLUTION: The finder device having a fixed lens group and one or more movable power-varying lens groups which can move along the optical axis to vary the power is provided with the freely expansible and contractible elastic member which is deformed as the power is varied on the object or/and observation sides of the movable power-varying lens groups.

2. 发明专利

JP2001222050A CARTRIDGE CHAMBER COVER OPENING/CLOSING DEVICE, AND CAMERA 失效
公开(公告)号：JP2001222050A
公开(公告)日：2001-08-17
申请号：JP2000031257
申请日：2000-02-09
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G03B17/00 , G03B17/02 , G03B17/56
摘要： PROBLEM TO BE SOLVED: To attain the reduction of the number of parts and the improvement of the assembling workability and also to perform the opening and closing of a cartridge chamber cover with a reduced space. SOLUTION: This device possesses the cartridge chamber cover to close a cartridge chamber 1a in which a cartridge is loaded, opening/closing members 34 and 38 shifting at a position at which the cartridge chamber cover is locked in a closed state and at the position at which locking is released and an operation member 40 to actuate the opening/closing member, and the operation member is turnably attached at a strap attaching member 1w integrally provided at an equipment having the cartridge chamber.

3. 发明专利

JP2001027774A LENS BARREL AND CAMERA 失效
公开(公告)号：JP2001027774A
公开(公告)日：2001-01-30
申请号：JP20056199
申请日：1999-07-14
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G02B7/02 , G03B11/04
摘要： PROBLEM TO BE SOLVED: To always surely close an aperture which is formed at lens barrel main body other than a photographing aperture and into which the protrusion part of a barrier driving mechanism is inserted. SOLUTION: Barrier devices 11 and 7 to open and close the photographing aperture 2b are arranged at the front end part of the lens barrel main body 2, and the protrusion parts 7b, 7c and 9 provided at the barrier devices are inserted into protrusion inserting apertures 2c, 2d and 2f formed at the lens barrel main body in this lens barrel. In this case, an elastic member 5 having a shape to close the protrusion inserting aperture and elastically deformable so as to be flush with the protrusion part is arranged between the barrier devices and the lens barrel main body.

4. 发明专利

JP2000089300A FINDER DEVICE AND CAMERA 失效
公开(公告)号：JP2000089300A
公开(公告)日：2000-03-31
申请号：JP25983798
申请日：1998-09-14
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G03B13/12
摘要： PROBLEM TO BE SOLVED: To provide a finder device which is easily assembled and constituted so that field frame switching operation can be confirmed in a unit state by assembling not only a field frame switching means but also a mechanism for driving the switching means in a finder unit. SOLUTION: This finder device where the field frame switching means 1 driven to switch a finder field frame is attached to a finder bottom board 8 is provided with an operation member 17, a 1st driving member 14 driven in a specified reciprocating direction by the member 17, a 2nd driving member 12 movable in a direction crossing with the specified reciprocating direction and driving the means 1, a 1st energizing member 13 energizing the member 12 in a direction where it abuts on the member 14, and a 2nd energizing member 15 energizing the member 14 in a direction against the energizing force of the member 13 acting on the member 114 through the member 12.

5. 发明专利

JPH11183968A FIELD FRAME SWITCHING DEVICE, FINDER DEVICE AND CAMERA 失效
公开(公告)号：JPH11183968A
公开(公告)日：1999-07-09
申请号：JP35525497
申请日：1997-12-24
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G03B13/06 , G02B7/04
摘要： PROBLEM TO BE SOLVED: To provide a field frame switching device capable of surely preventing dust from infiltrating in a unitized device. SOLUTION: This field frame switching device is provided with a field frame switching mechanism driven to switch finder field size, and a housing member 6 housing the field frame switching mechanism and having apertures for field 6c formed on both sides in a finder optical axis direction and a piercing-through aperture 6d formed to extend a driving force input part 5d in the field frame switching mechanism to the outside. In the device, the apertures 6c on both sides are covered with a transparent member 8, and the aperture 6d is covered with a cover member 9 attached to a driving force transmission part.

6. 发明专利

JPH1172825A CAMERA 失效
公开(公告)号：JPH1172825A
公开(公告)日：1999-03-16
申请号：JP23496397
申请日：1997-08-29
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G03B11/04
摘要： PROBLEM TO BE SOLVED: To reduce the number of parts and to control a lens barrel, when lens barriers are abnormally closed or the lens barrel is collapsed by detecting whether the lens barriers are in closed states on not and by executing the drive control of the lens barrels. SOLUTION: A contact type detecting switch 13 arranged between a lens barrel frame 1 and a barrier driving ring 4 outputs an ON signal in such a manner that a movable section 13a is pushed by a plane part 4f of the barrier driving ring 4 in which the lens barriers 9 and 10 are turned to fully closed positions to come into contact with a fixed section. Therefore, the lens barrel frame 1 reaches a collapsed position, when the lens barriers 9 and 10 are in fully closed states, the ON signal is outputted from the detecting switch 13 and a CPU stops a driving motor. On the other hand, when the barrier driving ring 4 is stopped regardless of the fact that the lens barrel frame 1 reaches the collapsed position, the CPU judges that a defect that the barriers are in fully closed states, occurs to reversely rotate the driving motor and return the lens barrel 1 to a photographing standby position.

7. 发明专利

JPH1164702A LENS BARREL 失效
公开(公告)号：JPH1164702A
公开(公告)日：1999-03-05
申请号：JP24170797
申请日：1997-08-25
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G02B7/02
摘要： PROBLEM TO BE SOLVED: To easily prevent a foreign matter and a harmful light beam entering from a gap between a lens holding frame and the photographing aperture part of a photographing frame covering over the lens holding frame in a lens barrel. SOLUTION: Substance obtained by incorporating a cylindrical sand-proofing rubber 21 having a light shielding property on the outer periphery of a spring 20 is attached to the gap between the inner surface side of the photographing aperture part 19a of the photographing frame 19 and the outer periphery part of the front edge of the lens holding frame 15, and the spring 20 always energizes in the withdrawing direction of the holding frame 15 so as to prevent the foreign matter and the harmful light beam entering from the gap between the photographing aperture part 19a of the frame 19 and the outer periphery of the holding frame 15 even when the holding frame 15 is moved in an optical axis direction due to focusing driving.

8. 发明专利

JPH08339010A OPTICAL EQUIPMENT 失效
公开(公告)号：JPH08339010A
公开(公告)日：1996-12-24
申请号：JP14446395
申请日：1995-06-12
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G03B11/04
摘要： PURPOSE: To eliminate possibility that dust is accumulated in a clearance between a barrier cover and a barrier blade to hinder the action of the barrier blade by providing a projection part protruded toward the barrier cover only at the tip of the barrier blade and near the center of the rotation thereof. CONSTITUTION: A pair of barrier blades 4 and 5 driven by a barrier blade driving ring 3 is arranged at a position just before the barrier blade driving ring 3. The rail-state projection parts 4g, 5g, 4f and 5f protruded in the front surface direction of the barrier blade are formed only at the tip parts of the barrier blades 4 and 5 and near the center of the rotation thereof. The projection parts come slidable contact with the vertical end plate part 9a of the barrier cover 9 arranged at the position just before the barrier blade. Therefore, even when the dust 10 gets into the clearance between the cover 9 and the blades 4 and 5, it is discharged to a lens barrel 2, so that the dust 10 is not accumulated in the clearance.

9. 发明专利

JPH08110454A LENS BARREL HAVING SHOCK ABSORBING STRUCTURE 失效
公开(公告)号：JPH08110454A
公开(公告)日：1996-04-30
申请号：JP24618694
申请日：1994-10-12
申请人： CANON KK
发明人： HASE HIROYUKI
IPC分类号： G02B7/04
摘要： PURPOSE: To absorb excessive shock instantaneously given to the front surface of a lens barrel, to prevent the damage or the deformation of a cam groove and a cam shaft or the falling-off of the cam shaft, and to reduce the rate of fault of a camera. CONSTITUTION: In the shock absorbing structure of the lens barrel where plural lens frames are moved in an optical axis direction interlocked with the rotation of cam barrel; a shaft bottom board 11 having the cam shaft 11c slidably fitted in the cam groove 2a formed on the cam barrel 2 is movably fitted in a rear bottom board 10 holding the lens frame 9 and a shutter unit 6, then shock is absorbed by utilizing the spring force of an interlens spring 18 for stabilizing a distance between the lenses.

10. 发明专利

JPH085895A OPTICAL ELEMENT MOVING MECHANISM 失效
公开(公告)号：JPH085895A
公开(公告)日：1996-01-12
申请号：JP13568394
申请日：1994-06-17
申请人： CANON KK
发明人： IKUI AKIHIRO , HASE HIROYUKI , YASUMARU ICHIRO
IPC分类号： G03B13/36 , G02B7/09
摘要： PURPOSE:To obtain a moving mechanism free from risk that the engagement of a ratchet tooth and a catch are not released by constituting a mechanism so that the depth of a tooth space of a 2nd ratchet tooth may be made narrower than that of a 1st ratchet tooth. CONSTITUTION:A cam ring 4 is provided with a part largely projecting from the outer peripheral part toward the outside in a radial direction, and four ratchet teeth 4b to 4d are projectingly provided on the front side of the projecting part. Then, the depth of the tooth space of the 2nd ratchet tooth 4C is made narrower than that of the 1st ratchet tooth 4b. Thus, such the state that the catch 8a for a lever 8 is engaged with the ratchet tooth 4C is released by applying a force smaller than the conventional one. And also, even in the case the tooth space of the ratchet tooth 4C becomes larger than the original one due to the secular change (wear), a gap between the leading end part 14a of a movable yoke 14 for an electromagnetic plunger 11 and a hole 13a of a fixed yoke 13 can be prevented from becoming equal to or exceeding a prescribed value when the electromagnetic plunger 11 is not operated, that is, when the catch 8a is engaged with the ratchet tooth 4C.

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