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公开(公告)号：FR2425090A1
公开(公告)日：1979-11-30
申请号：FR7903285
申请日：1979-02-08
Inventor： UCHIDOI MASANORI , MASANORI UCHIDOI MASAMI SHIMIZU NOBUAKI DATE ET HIROSHI AIZAWA , SHIMIZU MASAMI , DATE NOBUAKI , AIZAWA HIROSHI
Abstract: APPAREIL PHOTOGRAPHIQUE NUMERIQUE AVEC CINQ MODES D'EXPOSITION AUTOMATIQUE. L'APPAREIL COMPREND DES CARTES INDIVIDUELLES QUI, PAR INSERTION SELECTIVE DANS L'APPAREIL, PERMETTENT D'EFFECTUER LE FONCTIONNEMENT SOIT DE L'OBTURATEUR, SOIT DU DIAPHRAGME PAR FONCTION DE LA SORTIE NUMERIQUE D'UN CALCULATEUR PAR L'INTERMEDIAIRE DE CIRCUITS DE SELECTION LOGIQUES ALORS QUE L'INFORMATION SUR LE MODE DE LA CARTE INSEREE EST LU DANS UN COMPTEUR DECIMAL BINAIRE COMMANDANT LE FONCTIONNEMENT DES CIRCUITS LOGIQUES. LORSQUE LA CARTE N'EST PAS DANS L'APPAREIL, UN PREMIER BOUTON POUSSOIR DE COMMANDE POUR L'AFFICHAGE SEQUENTIEL DES MODES FONCTIONNE DE FACON A LAISSER PASSER UN TRAIN D'IMPULSIONS VERS LE COMPTEUR POUR QUE, EN ENFONCANT LE BOUTON, LE MODE COURANT AFFICHE SOIT ETABLI. LA CARTE COMPREND EN OUTRE UNE INFORMATION CONCERNANT LA PRODUCTION OU NON D'UN SIGNAL D'AVERTISSEMENT SONORE QUI, DANS L'UN DES MODES DE REALISATION, A LIEU LORSQUE LE FIL APPROCHE DE SON EXTREMITE. APPLICATION AUX APPAREILS PHOTOGRAPHIQUES.
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公开(公告)号：DE2828193A1
公开(公告)日：1979-01-18
申请号：DE2828193
申请日：1978-06-27
Applicant: CANON KK
Inventor： AIZAWA HIROSHI , UCHIDOI MASANORI , DATE NOBUAKI , SHIMIZU MASAMI
Abstract: The disclose circuit energizes a magnetic winding of a shutter actuating device. A constant voltage circuit is connected across the magnetic winding, or between the power supply terminal of the magnetic winding and a basic potential to ensure that the response of the armature of the actuating device to the output of a timing circuit is stabilized despite variation in the voltage of an electrical power source. This produces the advantage of substantially improving the accuracy of exposure control, because the closing operation of the shutter is controlled through movement of the armature.
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公开(公告)号：DE2810300A1
公开(公告)日：1978-09-21
申请号：DE2810300
申请日：1978-03-09
Applicant: CANON KK
Inventor： DATE NOBUAKI , UCHIDOI MASANORI , AIZAWA HIROSHI , SHIMIZU MASAMI , TAKISHIMA YOSHIYUKI
Abstract: The present invention relates to a camera having an exposure control device designed so that the light measurement, the exposure condition determination and the photographing operation are carried out by means of a release means including an electromagnet element to be controlled by means of a plural number of switches operating successively with the release operation of the camera. The invention is characterized in that the time at which the output signal of the control circuit for controlling the operation of the camera after the light measurement in accordance with the magnitude of the output signal of the light measuring means is controlled so as to be delayed in such a manner that a correct operation can be obtained even if the light measuring time is short.
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公开(公告)号：DE2750840A1
公开(公告)日：1978-05-18
申请号：DE2750840
申请日：1977-11-14
Applicant: CANON KK
Inventor： SHIMIZU MASAMI , HASHIMOTO TEIJI , MIYAKAWA HIDEAKI , UCHIDOI MASANORI , AIZAWA HIROSHI , ITO TADASHI
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公开(公告)号：DE2635309A1
公开(公告)日：1977-03-10
申请号：DE2635309
申请日：1976-08-05
Applicant: CANON KK
Inventor： SHIMIZU MASAMI , AIZAWA HIROSHI , YAMAMICHI MASAYOSHI , IURA YUKIO , UCHIDOI MASANORI , TSUNEKAWA TOKUICHI
Abstract: In cameras, a magnetic mechanism is used to control various camera operations. In order to reduce current consumption in supplying such magnetic mechanism, the present invention provides an improvement over known designs. The present inventive system for the magnetic mechanism thus presents a second reset member beside the normal reset member for releasing the current supply to the magnetic mechanism. If the current is continued to be supplied to the above mentioned magnetic mechanism by mistake, the above mentioned second reset member interrupts the current supply to the above mentioned magnetic mechanism instead of the normal reset member. In this way, the useless consumption of the battery can be avoided.
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Patent Agency Ranking
公开(公告)号：DE2904818C2
公开(公告)日：1994-12-22
申请号：DE2904818
申请日：1979-02-08
Applicant: CANON KK
Inventor： UCHIDOI MASANORI , SHIMIZU MASAMI , DATE NOBUAKI , AIZAWA HIROSHI
Abstract: A digital camera with five automatic exposure modes is provided with corresponding individual cards upon selective insertion into the camera to effect the operation of either or both of the shutter and diaphragm in accordance with the digital output of a computer through logic selection circuits as the mode information on the inserted card is read into a binary coded decimal counter controlling operation of the logic circuits. When the card is absent from the camera, a first controlling push button for sequential display of the modes is rendered effective to pass a pulse train to the counter so that upon release of the button, the current mode displayed can be set. The card further includes information relating to the determination of whether or not to give a sound warning signal which occurs, in one embodiment, when the film nears the terminal end of footage. In another embodiment, the buzzer is utilized to assist in releasing not only a first but also an additional three buttons for setting exposure factors and a number of film frames available just after a desired symbol or digital value appears in the display as they are sequentially presented.
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公开(公告)号：DE3744342A1
公开(公告)日：1988-07-28
申请号：DE3744342
申请日：1987-12-28
Applicant: CANON KK
Inventor： MATSUDA MUTSUHIDE , AOYAGI MASAO , FURUKAWA HIROSHI , SHIMIZU MASAMI
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公开(公告)号：FR2425090B1
公开(公告)日：1986-08-01
申请号：FR7903285
申请日：1979-02-08
Applicant: CANON KK
Inventor： UCHIDOI MASANORI , SHIMIZU MASAMI , DATE NOBUAKI , AIZAWA HIROSHI
Abstract: A digital camera with five automatic exposure modes is provided with corresponding individual cards upon selective insertion into the camera to effect the operation of either or both of the shutter and diaphragm in accordance with the digital output of a computer through logic selection circuits as the mode information on the inserted card is read into a binary coded decimal counter controlling operation of the logic circuits. When the card is absent from the camera, a first controlling push button for sequential display of the modes is rendered effective to pass a pulse train to the counter so that upon release of the button, the current mode displayed can be set. The card further includes information relating to the determination of whether or not to give a sound warning signal which occurs, in one embodiment, when the film nears the terminal end of footage. In another embodiment, the buzzer is utilized to assist in releasing not only a first but also an additional three buttons for setting exposure factors and a number of film frames available just after a desired symbol or digital value appears in the display as they are sequentially presented.
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公开(公告)号：DE2951750A1
公开(公告)日：1980-07-17
申请号：DE2951750
申请日：1979-12-21
Applicant: CANON KK
Inventor： AIZAWA HIROSHI , UCHIDOI MASANORI , URUSHIBARA KAZUNOBU , SUZUKI NOBUYUKI , SHIMIZU MASAMI
Abstract: A control system for a camera controls a shutter release operation electromagnetically. A signal generating circuit produces a switching signal for operating a switching circuit which supplies current to a control circuit for a camera. The signal generating circuit is in a condition to always produce a switching signal when a camera operation member is set to normal photographing modes other than the bulb photographing mode, and is out of condition to produce the switching signal during the time between actuation of a magnet and termination of the shutter opening operation. The closing operation of the shutter is checked by means of a mechanical control member during the release when the camera operation member is set in the bulb photographing mode.
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公开(公告)号：DE2755009A1
公开(公告)日：1978-06-15
申请号：DE2755009
申请日：1977-12-09
Applicant: CANON KK
Inventor： AIZAWA HIROSHI , UCHIDOI MASANORI , KOZUKI SUSUMU , DATE NOBUAKI , SHIMIZU MASAMI , TAKISHIMA YOSHIYUKI
Abstract: In the camera disclosed, a light measuring device and input data setting device establish exposure control signals which regulate exposure elements. When the control signal is out of range of an element, a switch turns on an adjusting arrangement which resets the setting device. The setting device may preset an element such as the aperture or shutter.
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