摘要:
A motor driven camera having a film windup device for winding up film by an electric motor for windup as a drive source, comprises a first windup transmission system for rotating a spool by the motor for windup as the drive source, the first windup transmission system being driven through a first planetary clutch arranged to be driven by the rotation of the motor in one direction, a second windup transmission system for rotating a sprocket by the motor for windup as the drive source, the second windup transmission system being driven through a second planetary clutch arranged to be released from the connection by rotation of the motor in the other direction, and a holder for holding the second planetary clutch in the released state from that connection.
摘要:
A motor driven camera having a mirror box in which a movable mirror supported to be pivotally movable between a finder-viewing position and an exposure retracted position is assembled, includes a mirror drive mechanism for driving the swing motion of the movable mirror, a shutter unit, a shutter charge mechanism for driving the charging of the shutter unit, and at least one motor constituting the drive source of the mirror drive mechanism and the shutter charge mechanism, wherein the mirror drive mechanism, the shutter unit, the shutter charge mechanism and the motor are assembled in the mirror box.
摘要:
A motor driven camera includes a charge mechanism for charging at least a shutter a first motor serving as a drive source for driving the charge mechanism, a film transportation mechanism for feeding film to make exposure of the next frame thereof, a second motor serving as a drive source for driving the film transportation mechanism, a first motor control circuit for driving the first and the second motors in parallelism to make ready to shoot the next frame after completion of exposure, operation detecting means for detecting an operating state of at least one of the first and the second motors, and a second motor control circuit for forcibly stopping one of the first and the second motors in response to output information produced by the operation detecting means representing that the operating state detected by the operation detecting means is not a predetermined state, the second motor control circuit driving again the forcibly stopped motor after completion of an operation of another motor.
摘要:
A motor driven camera which includes a first motor, a film rewind drive mechanism for driving film in a rewinding direction by the first motor serving as a drive source, a second motor, a film windup drive mechanism for driving the film in the winding up direction by the second motor serving as a drive source, the film windup drive mechanism includes a planetary clutch arranged upon rotation of the second motor in one direction to bring a windup transmission system into connection with the second motor, and upon rotation of the second motor in another direction to take the windup transmission system out of connection, and a motor control circuit, receptive of a signal representing start of a film rewinding, for driving the first motor in the rewinding direction and the second motor in the other direction.
摘要:
A motor driven camera includes a mirror drive mechanism of swinging a movable mirror between a finder viewing position and an exposure retracted position, a shutter charge mechanism for performing charge driving and charge releasing of a shutter, a first film drive mechanism for driving film in a direction reverse to the feeding direction for each shot, a first motor serving as a drive source for driving the mirror drive mechanism, the shutter charge mechanism and the first film drive mechanism, and a clutch mechanism having output transmission systems being changed over in response to a change of the direction of rotation of an output of the first motor, one of the output transmission systems being connected to the mirror drive mechanism and the shutter charge mechanism, and another of the output transmission systems being connected to the first film drive mechanism.
摘要:
A single-lens reflex camera having an automatic focusing capability, comprising a half-reflection mirror arranged in fixed relation to split part of light entering through the photographic lens to the finder optical system, a flippable submirror of total reflection arranged behind the mirror upon erection to direct part of the passed light to means for detecting the image sharpness, and control means responsive to termination of an operation of the detecting means for adjusting the size of opening of the diaphragm aperture and, at the same time, moving the submirror out of the path of the light from the mirror to the film gate, regardless of whether or not a shutter release is actuated.
摘要:
An imaging apparatus to which an accessory is detachably attached includes an imaging unit configured to convert an object image into an electrical signal, a signal generation unit configured to generate a vertical synchronizing signal that is synchronized with a timing of exposure of the imaging unit and output the generated vertical synchronizing signal, a control unit configured to control communication with the accessory based on the vertical synchronizing signal, a first terminal configured to send a clock signal generated by the control unit to the accessory, and a second terminal configured to communicate data with the accessory based on the clock signal, in which the control unit controls a signal level at the first terminal to a predetermined level when the communication of the data ends, and then changes the signal level in synchronization with the output of the vertical synchronizing signal.
摘要:
The present invention provides cyclopentadienyl molybdenum hexa-carbonyl complexes which can be represented by general formula (1) which is indicated below.General Formula (1) In this formula R1 to R10 each individually represent a group selected from the group comprising hydrogen, a methyl group and an ethyl group and may be the same or different.
摘要:
The present invention provides a molybdenum pentakis-alkylxanthate having general formula (1) which is indicated below. In this formula R1 to R5 each represent a group individually selected from linear chain or branched alkyl groups which have from 1 to 30 carbon atoms.
摘要:
Liquid crystal compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 each is a C.sub.1-18 alkyl group or an aralkyl group, R' is a haloalkyl group, X is --0--, --CO--, --COO-- or direct bond, Y is --COO--, --OCO-- or --CH.sub.2 O--, (A) and (B) each is ##STR2## and p and l each is zero or one.