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21. 发明专利

DE19702515B4 未知
公开(公告)号：DE19702515B4
公开(公告)日：2008-10-16
申请号：DE19702515
申请日：1997-01-24
申请人： PENTAX CORP
发明人： NOMURA HIROSHI , AZEGAMI KAZUYOSHI , SASAKI TAKAMITSU
IPC分类号： G02B7/04 , G02B7/08 , G02B7/10 , G03B7/097 , G03B7/10 , G03B7/16 , G03B9/24 , G03B11/04 , G03B17/02 , G03B17/04 , G03B17/14 , H05K3/28
摘要： A lens barrel has first, second and third barrels concentrically arranged in this order from an optical axis. The lens barrel includes at least one cam slot formed on the second barrel and extending oblique to a direction of the optical axis, at least one guide groove formed on an inner periphery of the third barrel, at least one follower formed on an outer periphery of the first barrel and engaging with the at least one guide groove through the at least one cam slot, and at least one member integrally formed on an outer periphery of the second barrel adjacent to an end of the at least one cam slot. The at least one member includes a surface formed thereon to contact the at least one follower when the at least one follower moves to the end of the at least one cam slot.

22. 发明专利

DE19903217B4 未知
公开(公告)号：DE19903217B4
公开(公告)日：2008-08-07
申请号：DE19903217
申请日：1999-01-27
申请人： PENTAX CORP
发明人： SHIKANO TORU , ARAI MASAYUKI
IPC分类号： G02B7/04 , G02B7/10 , G03B13/34 , H02M3/00 , H02P3/00 , H02P7/00 , H04N5/232
摘要： A travel-limit circuit having a DC motor for a lens by which the endurance of the motor can be improved while at the same reducing the rebound due to the inertia of the moving body at a travel extremity. The travel-limit circuit has a lens motor that drives, e.g., zoom lens groups. Limits which detect whether the lens group has reached their travel extremities at which mechanical stoppers are provided. The motor driving circuit, which drives the lens motor and the limit switches, activates a short break by short circuiting the pair of input terminals on the lens motor via diodes while cutting current flow from the motor driving circuit for the lens motor upon detection that the lens groups have reached their travel limit.

23. 发明专利

DE102004007943B8 未知
公开(公告)号：DE102004007943B8
公开(公告)日：2008-07-24
申请号：DE102004007943
申请日：2004-02-18
申请人： PENTAX CORP
发明人： OHKURA TADAHISA , OHSAWA YUTAKA , IWAMOTO SHIGERU , HASEGAWA TAKUYA
IPC分类号： G03B15/03 , G03B15/05
摘要： The mechanism has a device for controlling turning of a flash cap (4) such that: when the cap is drawn upwards from a lowered to a raised position by an external force, i.e. when a user selects a flash mode, the cap is displaced automatically towards the lifted position; when the cap is subjected to an external force moving it to a lowered position, the cap is displaced automatically to the lowered position; and when the cap is in the raised position and the power source of the camera is off circuit, the cap is automatically displaced to the lowered position.

24. 发明专利

DE10339390B4 未知
公开(公告)号：DE10339390B4
公开(公告)日：2008-07-10
申请号：DE10339390
申请日：2003-08-27
申请人： PENTAX CORP
发明人： NOMURA HIROSHI
IPC分类号： G02B7/00 , G02B7/10 , G02B7/02 , G02B7/08 , G02B15/14
摘要： A lens barrel includes a rotatable ring, an outer annular member which is non-rotatable and supports the rotatable ring inside the outer annular member, and an optical element movable along the optical axis by a rotation of the rotatable ring; an advancing/retracting mechanism configured to move the rotatable ring along the optical axis between movement limits of the rotatable ring; a circumferential groove located on the inner peripheral surface of the outer annular member or the outer peripheral surface of the rotatable ring; and a rotation-guiding projection located on the inner peripheral surface of the outer annular member or the outer peripheral surface of the rotatable ring. The rotation-guiding projection is engaged in the circumferential groove such that the rotatable ring is rotatable without moving along the optical axis when the rotatable ring is moved to the front movement limit by the advancing/retracting mechanism.

25. 发明专利

DE102007061476A1 未知
公开(公告)号：DE102007061476A1
公开(公告)日：2008-06-26
申请号：DE102007061476
申请日：2007-12-20
申请人： PENTAX CORP
发明人： TAKAMI SATOSHI , KANEKO KUNIKIYO , WATANABE HIROTO , SASAKI MASAHIKO , TOZAWA EIJI
IPC分类号： G02B23/24 , A61B1/00 , A61B1/06 , H05B37/02
摘要： A light-source driver for a light-source unit detachable from an endoscope body of a portable endoscope is provided. The light-source driver comprises a step-up controller, a first switch, and a second switch. The step-up controller supplies stepped-up voltage from a power source to a light source. The first switch's status switches between the On-state and Off-state in connection with the attachment and detachment of the light-source unit from the endoscope body. The second switch is connected to a break-control terminal of the step-up controller for setting a standby mode of the step-up controller. The On-state and Off-state of the second switch are controlled by the On-state and Off-state of the first switch, and the step-up controller is set to the standby mode when the light-source unit is detached from the endoscope body.

26. 发明专利

DE19929315B4 未知
公开(公告)号：DE19929315B4
公开(公告)日：2008-06-19
申请号：DE19929315
申请日：1999-06-25
申请人： PENTAX CORP
发明人： OZAKI HIROYASU , ITO TAKAYUKI
IPC分类号： G02B15/177 , G02B15/14 , G02B15/16
摘要： A step zoom lens includes a first movable lens group of negative power, a diaphragm which is immovable during zooming, and a second lens group of positive power. A fundamental zooming path along which the first lens group is moved to vary a focal length without causing an image shift is defined so that the distance of the first lens group from the diaphragm is reduced and is thereafter increased, upon zooming from a wide angle extremity to a telephoto extremity, and a fundamental zooming path along which the second lens group is moved is defined so that the distance of the second lens group from the diaphragm is linearly varied. The discrete stop positions of the first and second lens groups are determined to be different from a focal length position at which the distance between the first lens group and the diaphragm on the fundamental zooming path thereof is minimum or the vicinity thereof.

27. 发明专利

FR2908286A1 INSTRUMENT DE POSE DE PINCES POUR DISPOSITIF CHIRURGICAL ENDOSCOPIQUE ET ENSEMBLE A PINCE. 未知
公开(公告)号：FR2908286A1
公开(公告)日：2008-05-16
申请号：FR0758870
申请日：2007-11-08
申请人： PENTAX CORP
发明人： SHIBATA HIROAKI , KAWANO TOMOHIRO
IPC分类号： A61B17/122 , A61B17/128
摘要： L'invention concerne un instrument 100 de pose de pinces pour un endoscope, comportant une gaine souple 1 et au moins un ensemble à pince 10 ayant deux branches de pince 11 et agencé à proximité d'une partie extrême distale de la gaine souple 1 avec les branches de pince fermées. Celles-ci sont configurées pour être avancées afin de s'ouvrir à l'extérieur de la gaine souple 1 et d'être fermées sur un objet de traitement à l'aide d'un fil de manoeuvre 4. L'ensemble à pince 10 comprend une partie courbable qui correspond à la position d'un axe au moyen desquels les branches de pince sont montées de façon pivotante.Domaine d'application : endoscopes pour opérations de marquage et d'hémostase in vivo, etc.

28. 发明专利

DE102007050607A1 未知
公开(公告)号：DE102007050607A1
公开(公告)日：2008-04-24
申请号：DE102007050607
申请日：2007-10-23
申请人： PENTAX CORP
发明人： NAKAMURA TETSUYA
IPC分类号： A61B19/00 , A61B1/04 , A61B17/94 , H04N5/232 , H04N7/18
摘要： A scope navigation apparatus, method and a program embodied computer readable medium for navigating a scope end that is to be inserted into an object. The scope end includes at least one sensor that senses a spatial location of the scope end. An image pickup device records one or more images of a calibration device, which includes a sensor that senses a location of the calibration device. A processor calibrates the images recorded by the image pickup device and corrects for intrinsic and extrinsic parameters using a calibration matrix.

29. 发明专利

DE102004007943B4 未知
公开(公告)号：DE102004007943B4
公开(公告)日：2008-04-10
申请号：DE102004007943
申请日：2004-02-18
申请人： PENTAX CORP
发明人： OHKURA TADAHISA , OHSAWA YUTAKA , IWAMOTO SHIGERU , HASEGAWA TAKUYA
IPC分类号： G03B15/03 , G03B15/05
摘要： The mechanism has a device for controlling turning of a flash cap (4) such that: when the cap is drawn upwards from a lowered to a raised position by an external force, i.e. when a user selects a flash mode, the cap is displaced automatically towards the lifted position; when the cap is subjected to an external force moving it to a lowered position, the cap is displaced automatically to the lowered position; and when the cap is in the raised position and the power source of the camera is off circuit, the cap is automatically displaced to the lowered position.

30. 发明专利

FR2906618A1 UNITE OPTIQUE D'EXTREMITE DISTALE POUR UN ENDOSCOPE ELECTRONIQUE 未知
公开(公告)号：FR2906618A1
公开(公告)日：2008-04-04
申请号：FR0757805
申请日：2007-09-24
申请人： PENTAX CORP
发明人： YAMAMOTO KAZUYUKI
IPC分类号： G02B7/02 , A61B1/04 , G02B23/24
摘要： L'invention concerne une unité optique d'extrémité distale pour un endoscope électronique comprenant un premier tube (12) de support configuré pour supporter un capteur (8) d'image, un deuxième tube (13) de support, et un troisième tube (14) de support configuré pour supporter un système optique (7) d'objectif. Les tubes présentent divers revêtements métalliques au moyen desquels ils sont scellés hermétiquement par soudage ou brasage de façon à être étanches à la vapeur d'eau lors d'un passage à l'autoclave.Domaine d'application : endoscopes électroniques, etc.

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