Abstract: An image capturing apparatus which includes a light projection unit for projecting light of a different wavelength range emitted from each of a plurality of light sources onto an observation area administered with a fluorescent agent, an imaging unit for receiving light emitted from the observation area irradiated with each light to capture an image corresponding to each light, and a light intensity ratio change unit for changing the light intensity ratio of light emitted from each of the light sources.

Abstract: In an image capturing apparatus in which irradiation light emitted from a light source is projected onto an observation area through an irradiation window, reflection light of the irradiation light incident on the irradiation window and reflected from the window is detected and a liquid is discharged onto the irradiation window according to a result of the detection.

Abstract: Obtaining a first image captured by directing light having a first wavelength to an observation area and receiving light emitted from the observation area, and a second image captured by directing light having a second wavelength shorter than the first wavelength to the observation area and receiving light emitted from the observation area, and obtaining a deep portion image of the observation area by subtracting the second image from the first image.

Abstract: An image reading apparatus and method in which no complicated control is carried out and suitable adjustment of the color balance can be carried out in accordance with the type of a photographic material. First, the type of a photographic film to be read is acquired. When the photographic film is a negative film or a sepia-tone film, a filter for negative film is set on an optical axis of illumination light. When the photographic film is a positive film or a black-and-white film, a filter for positive film is set on the optical axis of illumination light. In either state, a film image on the photographic film is read.

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: An image reading apparatus and method is realized which can obtain light correction data with accurately and without involving a complicated operation. A turret including balance filters for a negative film and for a positive film, respectively, is provided in the image reading apparatus. When light correction data is acquired, the turret is controlled so that the positive-film balance filter is inserted and located on an optical axis L of light emitted from a lamp, and in a state in which a photographic film is not set in a film carrier, light correction data is generated based on image data outputted from a line CCD. At the time of reading images on the photographic film, when a negative film is used as the photographic film, the negative-film balance filter is inserted and located on the optical axis L, and when a positive film is used as the photographic film, the positive-film balance filter is inserted and located on the optical axis L.

Abstract: An image reading apparatus includes a diffusion box unit comprising a plurality of diffusion boxes, which each correspond to different sizes of photographic films, and controls the unit in such a manner that the diffusion box, which corresponds to the size of a film whose image is to be read, is positioned on an optical axis of a light source. Accordingly, the responsibility imposed upon an operator can be reduced and the error of choosing a wrong diffusion box can be prevented.

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: An image reading apparatus includes a diffusion box unit comprising a plurality of diffusion boxes, which each correspond to different sizes of photographic films, and controls the unit in such a manner that the diffusion box, which corresponds to the size of a film whose image is to be read, is positioned on an optical axis of a light source. Accordingly, the responsibility imposed upon an operator can be reduced and the error of choosing a wrong diffusion box can be prevented.

Abstract: An image reading apparatus includes a diffusion box unit comprising a plurality of diffusion boxes, which each correspond to different sizes of photographic films, and controls the unit in such a manner that the diffusion box, which corresponds to the size of a film whose image is to be read, is positioned on an optical axis of a light source. Accordingly, the responsibility imposed upon an operator can be reduced and the error of choosing a wrong diffusion box can be prevented.

Abstract: A condition-setting method for a photographic printer is disclosed, which is capable of performing the condition-setting work both simply and rapidly. In setting conditions for a digital exposure section, a single condition-setting image data having added thereto a correction value for the condition-setting process that has been performed at a surface exposure section is produced by an image signal processing section and stored in an image memory. A subsidiary control section sets an exposure time for the digital exposure section on the basis of the condition-setting image data stored in the image memory. The conditions need not be set for the digital exposure section using a plurality of Bull's eye negative films having different negative film densities, thereby simplifying the condition-setting job.

Abstract: A photographic printer for displaying an image on a liquid crystal panel, irradiating the light from a light source on said liquid crystal panel and exposing said image on a photosensitive material for a predetermined exposure time by the light transmitted through said liquid crystal panel is disclosed. Further, a method for controlling an exposure in such a photographic printer is disclosed. Before displaying an image on the liquid crystal panel, the drive voltage for producing a predetermined transmitted light amount is measured. On the basis of the difference between the measured voltage and the theoretical voltage for producing the predetermined transmitted light amount, an offset value of the drive voltage is adjusted. Accordingly, the operational error of the printer due to temperature change, due to the difference of the light transmittance between crystal panels, or due to the difference of the characteristic of voltage v.s. light transmittance between crystal panels is reduced.

Abstract: A method of correcting the light amount irregularities for a photographic printer in which an image displayed on a two-dimensional display unit is exposed by transmitting or reflecting the light from a light source through or from the two-dimensional display unit is disclosed. An LED light source is turned on with a predetermined driving voltage applied to all the pixels of a liquid crystal panel. The image on the liquid crystal panel is exposed for a predetermined length of time by the light transmitted through the liquid crystal panel and developed thereby to produce a photographic print. The density at a point corresponding to each pixel of the liquid crystal panel is measured. The light transmittance correction amount for each pixel of the liquid crystal panel is determined in such a manner that the density measured at each point conforms to a predetermined reference density (a minimum value of density measurement, for example).

Abstract: When negative images on a negative film are stored in a negative image storing unit, an index print image is constructed by an index constructing section in an image processing unit on the basis of the inputted images, which is displayed as a positive image on a monitor through a display instructing section. Images having different top-to-bottom directions in each of lateral and vertical image groups are indicated by key operation on a keyboard connected to the image processing unit with respect to the index print image displayed on the monitor. The direction of the indicated image is changed by a direction changing section in the image processing unit, and then the image is displayed on the monitor again. An index print image after changing the direction is displayed in an index printing section (on a liquid crystal panel). Thus an index print is prepared.

Abstract: A method of correcting the light amount irregularities for a photographic printer in which an image displayed on a two-dimensional display unit is exposed by transmitting or reflecting the light from a light source through or from the two-dimensional display unit is disclosed. An LED light source is turned on with a predetermined driving voltage applied to all the pixels of a liquid crystal panel. The image on the liquid crystal panel is exposed for a predetermined length of time by the light transmitted through the liquid crystal panel and developed thereby to produce a photographic print. The density at a point corresponding to each pixel of the liquid crystal panel is measured. The light transmittance correction amount for each pixel of the liquid crystal panel is determined in such a manner that the density measured at each point conforms to a predetermined reference density (a minimum value of density measurement, for example).

Abstract: The present invention provides a photometric unit designed for a photographic projector-printer assembly, which does not require a movable portion and is thus simple in its structure and eliminates any time lag in focal length change. The photometric unit 20 is diagonally offset with respect to the projection-side optical axis and has two area sensors 9 and 10 mounted in parallel with each other on a common substrate plate 8 and two image-formation lenses 11 and 12 having different focal lengths, which are located in operative association with the two area sensors. The optical axis a of one image-formation lens 11 having a longer focal length is positioned such that it intersects the optical axis of the projection optical path at a point O on the negative film, whereby a negative film image formed on either one of said area sensors depending upon the size of the image on said negative film is photoelectrically converted for photometry measurement.