Abstract: In an image read system which reads an image recorded on a film capable of holding incidental information of the image in an area different from the area where the image is recorded, the incidental information of the image recorded on the film is read, and the read image and the incidental information is processed and outputted as data of a single image.

Abstract: A film scanner is capable of reading an image formed on a film in accordance with a photographing mode recorded in each frame of the film. In this film scanner, an image formed in each frame of a film held by a film holder is projected onto a linear image sensor by a focusing optical system to read the image with the linear image sensor. A magnetic information detection unit detects magnetic information recorded in each frame of the film, and a system controller identifies a photographing mode of each frame of the film. In accordance with the identified photographing mode, an image read area of each frame is set and a subscanning motor is driven in accordance with this image read area. The subscanning motor is driven in the area outside of the image read area at a faster speed than in the image read area. Therefore, a read time can be shortened as compared to the case wherein all frames are read in the broadest image read area. Trimming works can be omitted.

Abstract: The present invention relates to an amplifier for amplifying an input signal. In a sensor amplifier construction according to the present invention, a series arrangement made up of a resistor and a transistor is inserted in a feedback path for an amplifier, and the collector of the transistor is connected to one input of the amplifier and a capacitor is connected between the emitter and the base of the transistor. According to the above-described arrangement, there is provided a sensor amplifier which can eliminate noise with a small-scale construction.

Abstract: An automatic follow-up focus detecting device comprises means for shiftably setting a follow-up field; extracting means for extracting a feature of an object in relation to the follow-up field; storing means for storing the extracted feature; detecting means for detecting a relative shift between the object and the device on the basis of the feature of the object extracted by the extracting means and the feature stored by the storing means; and shifting means for shifting a distance measuring field following the object according to the relative shift.

Abstract: An automatic object image follow-up device includes a setting circuit for shiftably setting a follow-up field; an extracting circuit for extracting a feature of an object in relation to the follow-up field; a store for storing the extracted feature; a detecting circuit for detecting a relative shift between the object and the device on the basis of the feature of the object extracted by the extracting circuit and the feature stored by the store; and a shifting circuit for shifting the follow-up field following up the object according to the relative shift.

Abstract: Disclosed is an autofocus device, particularly an autofocus device in which focus detection is effected repeatedly. A determination is made as to whether or not a determination of the in-focus state is made continuously for a predetermined duration upon repeated detection of focus after an initial in-focus determination is made. While the determinations of the in-focus state are being made for the predetermined duration after the initial determination on the in-focus state is made, the terminals of the motor are short-circuited to apply brakes to it, and after the aforementioned duration, the motor terminals are opened, thereby stopping the motor.

Abstract: A lens drive device capable of operating either of a first interchangeable lens barrel having a photographic lens movable relative to the barrel in a prescribed range with switches arranged at the terminal ends of the range so that when movement of the photographic lens reaches the terminal end, a motor driving the focusing lens member is stopped, and a second interchangeable lens barrel having no switches for stopping the focusing lens drive motor, wherein when the first barrel is in use, the lens drive signal is stopped based on the aforesaid switch, and when the second barrel is in use, the aforesaid signal is stopped in a prescribed time measured from the start of rotation of the motor.

Abstract: A distance measuring apparatus which emits light toward an object, receiving light reflected by the object, and measuring the distance of the object. This apparatus includes receiving means for receiving the reflected light, and the receiving means has at least two receiving areas. According to a disclosed technique, a mean value of photoelectric outputs from the respective receiving areas is calculated, and the distance of the object is measured on the basis of the difference between the mean value and the photoelectric output from either of the receiving areas. According to another disclosed technique, stabilization is provided with respect to amplifier means for amplifying the photoelectric outputs from the receiving means and integrating means.

Abstract: The invention relates to an active type AF apparatus. In an AF type apparatus for radiating light from a projecting means to an object, receiving light reflected by the object by first and second photosensor portions, and obtaining distance data based on outputs form the photosensor portions, the signals from the first and second photosensor portions are time-divisionally integrated in the same direction by a single integrating circuit and distance data is obtained based on data on integrated values.

Abstract: In the disclosed automatic focus detecting device for an imaging optical system a light spot is projected onto an object and an image of the object is formed on a predetermined focal plane. A light receiving photo-sensitive element produces at least two signals according to the position of the reflection of the projected light spot. A comparator detects when the relation between the integrated values of outputs of the light receiving element exceeds a predetermined level. A detector means detects when the light spot image has been projected for a predetermined time and a determining arrangement determines the focus of the imaging optical system on the basis of the outputs of the light receiving element when at least either the comparator or time detector detects the predetermined level or length of time.

Abstract: In an automatic focus detecting device having a light projecting element for projecting light for focus detection onto an object to be photographed and a light receiving element for receiving the light reflected by the object, controls an imaging optical system moving to an in-focus position on the basis of an output signal of the light receiving element. The disclosed light emission quantity control device includes a counter for counting the light emission time of the light projecting element from the start thereof and increases the light emission quantity of the light projecting element after the lapse of a predetermined time counted by the counter.

Abstract: In the disclosed automatic focus adjusting device of the active type having a light emitting element for projecting light for focus detection onto an object to be photographed, light emitting operation and non-light emitting operations of the light emitting element are periodically effected, and the duty ratio or frequency of the light emitting period is variable.

Abstract: In the disclosed liquid crystal display system, one of two opposing base plates that sandwich an electrooptic liquid crystal between them is divided into separate electrodes or constitutes a homogeneous transparent resistance. A source of power energizes this electrode so as to produce a gradient or stepped voltages between the divisions, and a data voltage is applied to the other electrode so that one section of the sandwiched electrodes can effect light differently than the other sections and thereby display information.

Abstract: In an automatic continuous focusing device, two detected images of an object formed by a distance detection optical system with a relative distance therebetween associated with the object distance are scanned, the obtained scanning signals are quantized to generate quantized picture element data, the relative distance between the two detected images is detected on the basis of the quantized picture element data, and an imaging optical system to be focused on the object is controlled according to the detection result. The device also provides for invalidating the control of the imaging optical system when the results of detection of the quantized condition of the scanning signals indicate that the quantized condition of the scanning signals for at least one of the two detected images is not sound or reasonable.

Abstract: A distance detecting device in which, with respect to an object whose distance is to be detected, the images of a first and a second field following different lines of sight and containing the object and different in range are scanned while, at the same time, continuous M quantized image element data regarding the first field image and continuous N (N>M) quantized image element data regarding the second field image are obtained and the M image element data regarding the first field image are stored in a first circulation type shift register while the first M image element data of the N image element data regarding the second field image are stored in a second circulation type shift register and the remaining N-M image element data are stored in a third shift register, and the comparison between the stored data of the first and second shift registers during one circulation of said stored data and the relative shift of n bits each of the stored data of the second and third shift registers with respect to the

Abstract: A camera provided with automatic focus detector is disclosed. The automatic focus detector drives a photographing lens toward the in-focus position by lens driving means in accordance with focus detection signal repeatedly put out from focus detecting means. The present invention is directed to improvement in focusing operation of such camera. Said lens driving means is allowed to drive the photographing lens toward the in-focus position only when the focus detection information signal continues to be constant longer than a predetermined time length. At the same time, the driving state of the photographing lens by said lens driving means is detected and display means is controlled by the detection signal to display the state of focusing now present.

Abstract: A distance detecting device in which, with respect to an object whose distance is to be detected, the images of a first and a second field following different lines of sight and containing the object and different in range are scanned while, at the same time, continuous M quantized image element data regarding the first field image and continuous N (N>M) quantized image element data regarding the second field image are obtained and the M image element data regarding the first field image are stored in a first circulation type shift register while the first M image element data of the N image element data regarding the second field image are stored in a second circulation type shift register and the remaining N-M image element data are stored in a third shift register, and the comparison between the stored data of the first and second shift registers during one circulation of said stored data and the relative shift of n bits each of the stored data of the second and third shift registers with respect to the

Abstract: By providing a liquid crystal cell nearly at the position of the clear vision of the view finder optical system together with a means for masking the display part of the liquid crystal cell the noise appearing on the boundary between the display part and the object view field is eliminated while the invasion of dusts is avoided, whereby further by means of the liquid crystal cell the alarm for the improper exposure, the alarm of the consumption of the power source battery and so on are displayed besides the photographic informations.

Abstract: In the disclosed motion picture projector the original sound recorded on the main magnetic stripe along one edge of a film stripe also having a magnetic balance stripe along the other edge of the same film surface, is reproduced by a recording-reproducing head. A second recording-reproducing head records the signal on the balance stripe. While the original sound signal is being heard, the first recording-reproducing head overlaps a second sound signal on the main stripe. A part of the original sound signal on the main stripe may be erased and a new signal recorded in its place.

Abstract: A sound motion picture camera, capable of using a film strip having a main stripe of magnetic recording material along one side edge of one surface and a balance stripe of magnetic recording material along the other edge of the same surface as well as its motion picture. The camera has a recording magnetic head arranged in correspondence with the main stripe and a second recording magnetic head arranged in correspondence with the balance stripe. Thus the same sound signal can be recorded on both the main and the balance stripe through first and second recording magnetic heads. Separate from the camera a sound recording/reproducing device for cooperation with the aforementioned film is provided with a sound recording/reproducing head and an erase magnetic head in a position corresponding to the main stripe and a sound reproducing head in a position corresponding to the balance stripe. A sound signal recorded on the balance stripe is reproduced by the sound reproducing head and heard through a speaker.