Abstract: An image reading apparatus is obtained which allows reading of an image in a short time and further allows setting of a focused state which is effective for warping caused in a main scan direction of an original to be read. Respective focusing positions in regions located in vicinities of both ends, in the main scan direction, of a main subject region in a film image on a photographic film, and in a region including the center of the film in the main scan direction are each detected as a virtual focusing position, and based on the detected virtual focusing positions, a final focusing position is determined.

Abstract: A flow sensor detects a flow rate of cooling air from a compressor, and a determination is made as to whether or not the detected flow rate is abnormal. A determination is made by a diaphragm position sensor as to whether or not a diaphragm is located at such a critical position that a quantity of light illuminated onto a photographic film is large, possibly resulting in degeneration of a photographic film. A lamp is turned off if the diaphragm is located at the critical position and the flow rate of the cooling air is abnormal.

Abstract: After prescan of a plurality of images on a photographic film, designation of an image to be processed and verification of the image to be processed, the photographic film is conveyed at high speed to a position where the reading conditions for the image to be processed can be set. When reading the image to be processed, the photographic film is conveyed at the same conveying speed as at the time of fine scan, and from the time point when the reading is complete, the high speed conveying of the photographic film is resumed and the photographic film is delivered. In a case where adjacent images are designated as the images to be processed, an operation similar to the one described above is performed until completion of reading the images to be processed, and then, the images to be processed are fine scanned after returning the photographic film to a position where the reading conditions for the images to be processed can be set.

Abstract: A lens motor and a conjugate length motor are driven to move a lens unit and a reading section to positions, respectively, which positions corresponding with a set magnification, autofocusing is carried out, and an actual focusing magnification is determined. It is then determined whether the actual focusing magnification is within a standard range corresponding to the set magnification. When the actual focusing magnification is outside the standard range, a number of pulses of the lens motor for changing the actual focusing magnification to the set magnification is calculated, the lens unit is moved again, autofocusing is carried out, and an actual focusing magnification is determined. This movement of the lens unit and autofocusing is carried out repeatedly until the actual focusing magnification falls within the standard range.

Abstract: A chart original in which two or more patterns are disposed so as to be separated at predetermined intervals and are symmetric with respect to a second imaginary line which is orthogonal to a first imaginary line. Each of the patterns is formed from a first line segment, which is orthogonal to the first imaginary line, and two second line segments, which are disposed at opposite positions with respect to the first line segment so as to intersect the first line segment. Each of the patterns intersect the first imaginary line at three points.

Abstract: A verification screen is displayed by using information obtained by prescanning. On the basis of a print magnification, fine scanning conditions are computed, and a determination is made as to whether or not a density of an image obtained by prescanning is greater than or equal to a predetermined value. If the density of the image obtained by prescanning is not greater than or equal to the predetermined value, fine scanning is carried out in accordance with fine scan conditions. If the density of the image obtained by prescanning is greater than or equal to the predetermined value, the image is read at a charge accumulating time which is longer than a charge accumulating time during fine scanning and at a conveying speed which is slower than a conveying speed during fine scanning.

Abstract: A verification screen is displayed using information obtained by a prescan, fine scan conditions are computed on the basis of the print magnification and whether or not the density of an image obtained by the prescan is higher than a predetermined value is determined, so as to determine whether or not it is necessary to move to high density reading mode. If it is not necessary to move to the high density reading mode, a fine scan is carried out according to the fine scan condition. If it is necessary to move to the high density reading mode, an image is read at a slow transporting speed and over a long accumulation time.

Abstract: An image is read from a photo film by a scanner. Data of the read image is transferred to an image processing unit to process the image. When reading and processing the image, setting items are changed in accordance with a mode. In a high-image-quality mode, is executed at least one of the items including increment of a read pixel number, improvement of an SN ratio, correcting processes, reduction of an electronic magnification, and monitoring. In a high-speed mode, is executed at lease one of the items including reduction of the read pixel number, omission of the correcting processes, increment of the electronic magnification, omission of monitoring, and omission or reduction of automatic focusing. The mode is selected so as to meet an operational purpose so that the image is efficiently read.

Abstract: An image reading device and an image reading method are provided which are inexpensive and compact and which can carry out high quality image reading by simple control. An area CCD scanner section, which reads a frame image of a photographic film set at a film carrier, is provided with a reading section and a light source selection. The reading section is formed so as to include a lens unit and an area CCD, and is slidable. The light source unit can selectively emit visible light and infrared light. Focus control is carried out at each of a time of reading a frame image by visible light and a time of reading the frame image by infrared light.

Abstract: Light is irradiated onto a photographic film which is conveyed by a film carrier. A compressor generates cooling air for cooling the photographic film. A guide pipe guides the cooling air generated by the compressor to at least one of a region of the photographic film, onto which the light is irradiated, and a reverse surface of the region. In this way, since the cooling air generated by the compressor is guided to the photographic film, the photographic film can be cooled by the cooling air having large amount of flow, velocity of flow, or the like.

Abstract: Light is irradiated onto a photographic film which is conveyed by a film carrier. A compressor generates cooling air for cooling the photographic film. A guide pipe guides the cooling air generated by the compressor to at least one of a region of the photographic film, onto which the light is irradiated, and a reverse surface of the region. In this way, since the cooling air generated by the compressor is guided to the photographic film, the photographic film can be cooled by the cooling air having large amount of flow, velocity of flow, or the like.

Abstract: A method and mechanism are disclosed for driving optical members in an optical apparatus, in which cam means formed on a lens barrel are provided with insensitive zones, so that the lens barrel is rotated to drive a diaphragm for adjustment of its diaphragm stop after the lens has been moved to the insensitive zones, then the lens barrel is rotated in the reverse direction with the diaphragm being maintained at its adjusted diaphragm stop, and thereby power variation and/or focussing of the lens as well as adjustment of the diaphragm stop are achieved using a single drive source. A cylindrical cam 40 is provided within a stationary lens barrel 30 so as to be rotatable around an optical axis S. The cylindrical cam 40 is formed with cam slits 41 each having insensitive zones 42 at longitudinally opposite ends thereof so that an enlarging lens 20 can not be further moved back and forth when lens driving pins 27 lie in these insensitive zones 42.

Abstract: A light source position adjusting method and system are used for an image input apparatus including a light source for irradiating film original. A light source moving device is operable from the outside of the external cover of the image input apparatus. A position of the light source is adjusted from the outside of the external cover using a measuring tool so that the quantities of light are uniformly balanced at a plurality of measuring points on the plane of the film original. The measuring tool is thereafter removed. The average value of the output values in the specific pixel regions of the image sensor corresponding to the plurality of measuring points on the plane of the film original are determined and the balance output values of the respective pixel regions are stored. The position of the light source is adjusted so that the output values of the image of the light source are made equal or closer to the balanced output values stored.

Abstract: When no trimming is executed, the optical magnification is fixed and the electronic magnification is changed each time a print size changes in a film original having the same film size, even if recorded images have a different size. Further, the fixed optical magnification is the standard or set optical magnification, which permits the image of the film original to be projected to the effective image region of the image sensor in the state that it inscribes or nearly inscribes the effective pixel region to the greatest possible degree. As a result, a high quality print can be obtained without the deterioration of image quality in high productivity, and without the need of effecting the troublesome optical magnification by operating the zoom lens. Further, when trimming is executed, since preference is given to the optical magnification over the electronic magnification, even if only a part of the image recorded on a film original is enlarged, the deterioration of image quality can be prevented or minimized.

Abstract: According to the improve method for use with image inputting apparatus to set the illuminance of reading light, the measurement with the image sensor is performed with the light source stop being adjusted to a specified initial value of degree of opening in the absence of original in an optical path and if an output from the image sensor is not within a specified range, either adjustment of the quantity of the light from the source or readjustment of the light source stop using a light source stop table which represents the relationship between the degree of opening of the light source stop and the output of the image sensor or both the adjustment of the quantity of the light from the source and the readjustment of the light source stop are performed and another measurement with the image sensor is performed in the absence of original in the optical path and these steps are repeated until the output from the image sensor comes to fall within the specified range, and if the output falls within the specified ra

Abstract: The improved image inputting apparatus for reading the image recorded on a transmission original comprises: a light source; an image sensor for photoelectrically reading the light that has issued from the light source and which has been transmitted through the original; an imaging lens for permitting the transmitted light to be focused on the image sensor; a focusing device for automatically adjusting a focus of the imaging lens; and a control device for controlling the focusing device before starting the reading of a new image group such that only the first frame of the image group is subjected to one-step automatic focusing or two-step automatic focusing consisting of coarse and fine adjustments whereas the other frames are not subjected to focusing but image reading is performed adopting the focus state of the first frame or are subjected to automatic focusing comprising only fine adjustment.

Abstract: The present invention concerns a photographic projector-printer assembly for projecting a negative film F onto a photographic paper C through a projecting lens L for photographic printing, in which the projecting lens L is integrally provided on its object side with an optical path-splitting prism P for splitting on the optical axis the light for photometric and monitoring purposes, thereby eliminating such a printing ability reduction problem as is found in a system designed to put a reflecting mirror in and out and providing a solution to image distortion and measurement accuracy drop problems. In addition, the optical path-splitting prism P is designed to be adjustable in the optical axis direction and around the optical axis in terms of its position with respect to the projecting lens L, so that the optical axis of the assembly can be kept in alignment with that of an associated photometric and monitoring system.

Abstract: A construction for guiding and holding an image recording material such as a photographic paper, including a pair of guide plates, a feed screw, and a control unit. The guide plates are disposed so as to oppose each other and are spaced apart from each other by a predetermined distance. The guide plates are supported so as to be movable in directions of approaching and moving apart from each other. The feed screw supports the pair of guide plates which are moved in the directions of approaching and moving apart from each other by rotating of the feed screw. The control unit causes the feed screw to rotate until the guide plates move to predetermined positions. Thus, the construction for guiding and holding the image recording material can guide and hold the image recording material such that the image recording material is curved in a loop shape and is slack. Consequently, image quality of the image recording material and smooth processing thereof can be ensured.

Abstract: A photosensitive material processing apparatus which performs, with high accuracy, the positioning of a negative table, an optical system supporting member, a guide member for photographic paper, a conveying member, a development portion, a drying portion and a cutting portion relative to each other on a base member by means of positioning members. As a result, a high quality image can be reliably obtained and the photographic paper can be accurately conveyed.

Abstract: A photosensitive material processing apparatus of the present invention includes an apparatus main body for processing a photosensitive material as the material is being conveyed, a magazine capable of supplying the photosensitive material to the apparatus main body, a shutter capable of opening and closing an opening portion of the magazine, an opening and closing claw for engaging the shutter and moving upon the mounting of the magazine to thereby open and close the shutter, conveying rollers capable of nipping the photosensitive material extending from the magazine when the magazine is mounted, a coupling member disposed for coupling the opening and closing claw and the conveying rollers and moving to and fro so as to shift the opening and closing claw integrally with nipping and separating actions of the conveying rollers, and a operation assembly for moving the coupling member to and fro while abutting against the coupling member so as to move the opening and closing claw and effect nipping and separatin