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公开(公告)号：DE3710199A1
公开(公告)日：1987-10-29
申请号：DE3710199
申请日：1987-03-27
Applicant: SONY CORP
Inventor： KUNO OSAMU , NISHIDA YASUO , TANI TSUNEO
Abstract: An automatic focusing system includes a photo-sensitive element for receiving light passing a main lens system of a camera. The photo-sensitive element produces a distance indicative signal based on the received light. The main lens system is driven to a position to focus upon an object on the basis of the distance indicative signal from the photo-sensitive element. The system is also provided with an auxiliary light generating element for emitting an auxiliary light to the object. The auxiliary light generating element is activated while distance measurement is performed for focusing operation in order to enable the automatic focusing system to perform a distance measurement and focus upon the object even in dark environmental conditions or upon dark objects. The auxiliary light generating element may be selected to emit an infrared light beam or a far infrared light beam.
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公开(公告)号：DE3710199C2
公开(公告)日：1995-03-16
申请号：DE3710199
申请日：1987-03-27
Applicant: SONY CORP
Inventor： KUNO OSAMU , NISHIDA YASUO , TANI TSUNEO
Abstract: An automatic focusing system includes a photo-sensitive element for receiving light passing a main lens system of a camera. The photo-sensitive element produces a distance indicative signal based on the received light. The main lens system is driven to a position to focus upon an object on the basis of the distance indicative signal from the photo-sensitive element. The system is also provided with an auxiliary light generating element for emitting an auxiliary light to the object. The auxiliary light generating element is activated while distance measurement is performed for focusing operation in order to enable the automatic focusing system to perform a distance measurement and focus upon the object even in dark environmental conditions or upon dark objects. The auxiliary light generating element may be selected to emit an infrared light beam or a far infrared light beam.
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公开(公告)号：CA2119303A1
公开(公告)日：1994-09-20
申请号：CA2119303
申请日：1994-03-17
Applicant: SONY CORP
Inventor： ISE KOICHI , NISHIDA YASUO , YASUDA AKIO
Abstract: A small-sized diaphragm device for an image pickup lens system having an electrochromic element the light transmitting properties of which are changed on application of an electrical voltage. The diaphragm device also includes a first set of plural concentrically arranged transparent electrodes, a second set of plural concentrically arranged transparent electrodes and third electrodes formed on the outer most peripheries of these sets of transparent electrodes for acting as counter-electrodes for the transparent electrodes. The diaphragm device has a sufficient light transmittance when in the transparent state, while having highlight interrupting properties when in the light interrupting state.
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公开(公告)号：DE69407453D1
公开(公告)日：1998-02-05
申请号：DE69407453
申请日：1994-03-16
Applicant: SONY CORP
Inventor： ISE KOICHI , NISHIDA YASUO , YASUDA AKIO
Abstract: A small-sized diaphragm device (10;30;52) for an image pickup lens system having an electrochromic element (11;31;53) the light transmitting properties of which are changed on application of an electrical voltage. The diaphragm device also includes a first set of plural concentrically arranged transparent electrodes (14a-14d;34a-34d;54), a second set of plural concentrically arranged transparent electrodes (15a-15d;35a-35d;55) and third electrodes (16A,16B;36A,36B;56) formed on the outer most peripheries of these sets of transparent electrodes for acting as counter-electrodes for the transparent electrodes. The diaphragm device has a sufficient light transmittance when in the transparent state, while having high light interrupting properties when in the light interrupting state.
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公开(公告)号：DE69217742D1
公开(公告)日：1997-04-10
申请号：DE69217742
申请日：1992-06-26
Applicant: SONY CORP
Inventor： MORO SHUUJI , TADA KANEHIRO , NISHIDA YASUO , OHSHIMA EIJI
Abstract: The iris drive mechanism (1) has two diaphragms (13,15) which are opened and/or closed by a first lever (9) rotated by an ideal gyrator (IG) meter (5) and a second lever (17) in which an engagement hole (17A) with which an output shaft (5A) of the IG meter is engaged, and an engagement pin (17B) engaged into an oblong hole (9B) formed through the first lever, and a rotary shaft (11) to which the first lever is rotatably supported. The first lever (9) is rotated through the second lever (17) by the IG meter. Therefore, when an aperture is small, a resolution of the F number can be increased, and this can enhance the automatic exposure control performance.
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Patent Agency Ranking
公开(公告)号：CA2119303C
公开(公告)日：2003-06-10
申请号：CA2119303
申请日：1994-03-17
Applicant: SONY CORP
Inventor： ISE KOICHI , NISHIDA YASUO , YASUDA AKIO
Abstract: A small-sized diaphragm device for an image pickup lens system having an electrochromic element the light transmitting properties of which are changed on application of an electrical voltage. The diaphragm device also includes a first set of plural concentrically arranged transparent electrodes; a second set of plural concentrically arranged transparent electrodes and third electrodes formed on the outer most peripheries of these sets of transparent electrodes for acting as counter-electrodes for the transparent electrodes. The diaphragm device has a sufficient light transmittance when in the transparent state, while having high light interrupting properties when in the light interrupting state.
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公开(公告)号：DE69407453T2
公开(公告)日：1998-04-16
申请号：DE69407453
申请日：1994-03-16
Applicant: SONY CORP
Inventor： ISE KOICHI , NISHIDA YASUO , YASUDA AKIO
Abstract: A small-sized diaphragm device (10;30;52) for an image pickup lens system having an electrochromic element (11;31;53) the light transmitting properties of which are changed on application of an electrical voltage. The diaphragm device also includes a first set of plural concentrically arranged transparent electrodes (14a-14d;34a-34d;54), a second set of plural concentrically arranged transparent electrodes (15a-15d;35a-35d;55) and third electrodes (16A,16B;36A,36B;56) formed on the outer most peripheries of these sets of transparent electrodes for acting as counter-electrodes for the transparent electrodes. The diaphragm device has a sufficient light transmittance when in the transparent state, while having high light interrupting properties when in the light interrupting state.
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公开(公告)号：DE69217742T2
公开(公告)日：1997-06-26
申请号：DE69217742
申请日：1992-06-26
Applicant: SONY CORP
Inventor： MORO SHUUJI , TADA KANEHIRO , NISHIDA YASUO , OHSHIMA EIJI
Abstract: The iris drive mechanism (1) has two diaphragms (13,15) which are opened and/or closed by a first lever (9) rotated by an ideal gyrator (IG) meter (5) and a second lever (17) in which an engagement hole (17A) with which an output shaft (5A) of the IG meter is engaged, and an engagement pin (17B) engaged into an oblong hole (9B) formed through the first lever, and a rotary shaft (11) to which the first lever is rotatably supported. The first lever (9) is rotated through the second lever (17) by the IG meter. Therefore, when an aperture is small, a resolution of the F number can be increased, and this can enhance the automatic exposure control performance.
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公开(公告)号：EP0616242B1
公开(公告)日：1997-12-29
申请号：EP94400574
申请日：1994-03-16
Applicant: SONY CORP
Inventor： ISE KOICHI , NISHIDA YASUO , YASUDA AKIO
CPC classification number: G02F1/155
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公开(公告)号：JPH1054837A
公开(公告)日：1998-02-24
申请号：JP22927696
申请日：1996-08-12
Applicant: SONY CORP
Inventor： SAKAMOTO SATOSHI , ISHII HIROHISA , OSHIMA EIJI , NISHIDA YASUO , MORO SHUJI
Abstract: PROBLEM TO BE SOLVED: To provide a magnetoresistance element sensor, which decrases the effect of the leaking magnetic field of a driving magnet and can improve the assembling property of the magnetoresistance element sensor. SOLUTION: This magnetoresistance element sensor 30 is arranged in the equipment having a driving magnet 8 and a measuring magnet 9 used for the detection of a position and the detection of an angle and detects the change in magnetic field of the measuring magnet 9 with the change in magnetoresistance. In this case, the part of the measuring magnet 9 facing the magnetoresistance element sensor 30 is opened, and a leaking-magnetic-field passing means 40 comprising soft magnetic material for passing the leaking magnetic field of the driving magnet 8 is provided.
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