Abstract: An electronic image filing system includes an information detecting/reading system having a film image data capture unit for capturing an image of a photographic film having developed, and a film information detection unit for detecting photographing information recorded in the photographic film in a photographing operation. The electronic image filing system further includes a film driving unit for performing a frame feed operation, a wind/rewind operation, and the like with respect to the film, and a film image data storage/accumulation unit for adding the photographing information detected by the film information detection unit as attribute information to the photographic image data read by the film image data capture unit and then accumulating the resultant data. The photographing information includes information about the photographing date and time and a film cartridge, the frame number information, and the like.

Abstract: In a scanner having a film image input unit for reading images from developed film stowed in a cartridge and a cartridge film holding unit capable of being detachably attached to the image input unit and of holding the cartridge, a locking mechanism is used to restrain the film holding unit from being detached from the image input unit immediately before or after pulling the film out of the cartridge is started. It is therefore possible to prevent the imperfect run or rewind of the cartridge film due to a careless operation. It can also be prevented that loaded film is soiled or flawed.

Abstract: A film scanner enabling TV display includes a line sensor for converting a one-dimensional optical image into a line image signal. An A/D converter converts the line image signal into a digital signal. An image memory stores the digital signal in units of a line image. A D/A converter converts a line image signal read from the image memory into an analog signal. A sync signal generator generates a sync signal used to produce a video signal. An encoder outputs a given video signal on the basis of an analog signal output from the D/A converter and the sync signal. A control unit controls at least accumulation of the line sensor in response to the given timing of the sync signal, to control reading or writing of the image memory.

Abstract: In a camera controller using a CMOS-analog-IC, a microcomputer, logarithmic compression type distance measuring and photometric circuits, each constituted by a CMOS device having a parasitic bipolar transistor having a p- or n-type well as a base and an n.sup.+ -type layer in the p-type well or p.sup.+ -type layer in the n-type well as an emitter, and the like are arranged on the same chip.

Abstract: An apparatus for recording data to a film, executing: both unchangeable recording such as optical recording, and changeable recording such as magnetic recording for relatively important data, which is required protection from data failure and is permitted to change such as date, date print mode, and trimming direction of printing area, and executing: only magnetic recording for relatively unimportant data, which is allowed some data failure and has few possibility of changing such as aperture value, shutter time value, photometric value, exposure compensation value, and object distance value; wherein the apparatus is housed in a detachable back cover of a camera, and data being transmitted from the main body of the camera to the back cover.

Abstract: The present invention is directed to a zoom encoder for detecting an amount of angular movement and a direction of angular movement of a cam ring which is angularly moved about an optical axis of a photographing optical system to change a focal length of the photographing optical system.

Abstract: In a camera controller using a CMOS-analog IC, a microcomputer, logarithmic compression type distance measuring and photometric circuits, each constituted by a CMOS device having a parasitic bipolar transistor having a p- or n-type well as a base and an n.sup.+ -type layer in the p-type well or p.sup.+ -type layer in the n-type well as an emitter, and the like are arranged on the same chip.

Abstract: An apparatus for recording data to a film, executing: both unchangeable recording such as optical recording, and changeable recording such as magnetic recording for relatively important data, which is required protection from data failure and is permitted to change such as date, date print mode, and trimming direction of printing area, and executing: only magnetic recording for relatively unimportant data, which is allowed some data failure and has few possibility of changing such as aperture value, shutter time value, photometric value, exposure compensation value, and object distance value; wherein the apparatus is housed in a detachable back cover of a camera, and data being transmitted from the main body of the camera to the back cover.

Abstract: A camera having a temperature compensating function includes a first IC incorporating a driver for driving a motor for performing focus adjustment of a photographing lens, and a second IC incorporating a distance measuring circuit for measuring a distance to an object to be photographed, and a temperature measuring circuit for measuring the ambient temperature. The first IC generates a larger amount of heat than the second IC because of a driving current supplied to the motor. In the camera, ambient temperature data measured by the temperature measuring circuit immediately after power is supplied to the second IC is stored in a memory, and a CPU performs a correction operation with respect to object distance data output from the distance measuring circuit on the basis of the ambient temperature data stored in the memory, thus obtaining the driving amount of the photographing lens.

Abstract: A distance measuring device contains a light-projecting section for projecting luminous flux onto a subject. A light-receiving section is placed the base length away from the light-projecting section, receives the reflected rays of light from the subject, and produces a photoelectric current according to the amount of light received. The light-receiving section is divided into at least four light-receiving elements by a first dividing line that crosses the base length at right angles and by a second dividing line that crosses the first dividing line obliquely. A first ratio calculating section calculates the ratio of the sum of the photoelectric currents generated by the light-receiving elements on one side of the first dividing line to the sum of the photoelectric currents produced by the light-receiving elements on the other side.

Abstract: An auto-focus apparatus for a camera includes a distance measurement unit for projecting infrared light toward an object, receiving the infrared light reflected by the object, and outputting a signal according to an object distance. A control unit operates the distance measurement unit twice at a predetermined time interval. A discrimination unit discriminates on the basis of two output signals output from the distance measurement unit whether or not the object is moving to the near distance side by an amount equal to or larger than a predetermined amount. An arithmetic unit converts the output signals from the distance measurement unit into an extension amount of a photographing lens. The arithmetic unit adds a predetermined value to the extension amount when the discrimination unit discriminates that the object is moving to the near distance side.

Abstract: A motor-driven film rewinder rewinds a roll of film loaded into a cassette and wound up on a film take-up spool of a camera. A signal generator generates a film movement signal as the film moves. A film movement stoppage detector is connected to the signal generator to output a film movement stoppage signal when no film movement signal is output from the signal generator for a first reference period of time. A motor controller is responsive to the film movement stoppage signal from the film movement stoppage detector to stop the operation of the motor-driven film rewinder. A timer starts a time count operation at a point of time at which the motor-driven film rewinder begins a film rewinding operation and keeps the film rewinder performing the film rewinding operation for a second reference period of time longer than the first reference period of time. The motor controller operates after a lapse of the second reference period of time.

Abstract: In the first aspect, light reflected by an object upon projection of a beam on the object is received by a light-receiving section. A photocurrent corresponding to the irradiated position is detected by a photocurrent detection section and is compared with a predetermined level by a comparison/determination section. An ordinary photocurrent output from the photocurrent detection section prior to projection of the beam is digitally converted by a set/clear section of each bit of a digital value. The converted value is stored in a memory section. In projection of the beam, the ordinary photocurrent corresponding to the output from the memory section is extracted from the photocurrent output from the photocurrent detection section by an ordinary photocurrent extraction section without using a hold capacitor. In the second aspect, light is repeatedly projected from a projecting section on an object, and light reflected by the object is repeatedly received by a light-receiving section.

Abstract: In an automatic focusing system, a rangefinder unit is provided with a spot-beam projecting lens and a reflected spot-beam receiving lens which are disposed on the front of the rangefinder case with the space of the base length therebetween in the vertical direction, and a spot-beam emitting device and a reflected spot-beam receiving device which are disposed on the back of the case which is separated from its front by the focal distance of the lenses. The rangefinder unit is moved to scan a subject in a direction perpendicular to the base line, thereby permitting movement of the rangefinder unit to be made small. The automatic focusing system can be made compact and exclude the influence of an error in contrast due to partial return spot-beam images on the spot-beam receiving element.

Abstract: The present invention comprises a distance measurement start signal output device for outputting a distance measurement start signal, a light projecting device for projecting a light flux to a distance measurement object multiple times in response to the distance measurement start signal, a light receiving device which is arranged a base length away from the light projecting device and receives the reflected light of the light flux from the distance measurement object, a distance information output circuit for outputting distance information according to the light receiving position of the reflected light in the light receiving device every time the light projecting device projects light, an arithmetic logic circuit for arithmetically and logically calculating a distance from the distance measurement object using an average of the distance information sent from the distance information output circuit, an exposure start signal output circuit for outputting an exposure start signal, and a control circuit for al

Abstract: A data printing apparatus includes a data input unit. A film feed unit feeds a film by a driving operation of a motor. A film feed amount detection unit detects a moving amount of the film. Three light-emitting segments are arranged in a feed direction of the film. Two light-emitting segments are arranged in a direction substantially perpendicular to the feed direction of the film. An emission control unit selectively turns on the light-emitting segments during movement of the film on the basis of an output from the moving amount detection unit and an output from the data input unit. A data numeral is formed on a film surface by selective emission of the two and three light-emitting segments.

Abstract: A light projector projects a light pulse upon an object being photographed. A position sensitive detector (PSD) receives reflected light from the object and produces photocurrents which depend on the position of incidence of the light thereon. The detector (PSD) is positioned so that the center of an imaging spot formed by the reflected light from the object when the latter is located at infinity is located toward the projector with respect to the center of PSD.

Abstract: A wireless remote control apparatus for a camera comprises a transmitter unit which is detachably mounted on the camera body and a receiver unit disposed in the camera. The wireless remote control apparatus determines if the remote control operation is possible prior to initiating a photographing operation of the camera.

Abstract: A range-finding optical system comprising a light emitting element, a light projecting lens located in front of the light emitting element and serving to project the light emitted from the light emitting element onto an object, a light receiving element, a light receiving lens located in front of the light receiving element and serving to converge the light, which is emitted from the light emitting element and reflected by the object, onto the light receiving element, a member for interconnecting the light projecting lens and light receiving lens and for defining the distance therebetween, and a member for interconnecting the light emitting element and light receiving element and for defining the distance therebetween, the range-finding optical system being arranged that the displacement of the focus point of the photographic lens system to be caused by temperature variation is easily compensated by means of the difference between the coefficient of thermal linear expansion of the member for interconnecting t