Abstract:
An area CCD scanner (image reader) comprises an LED unit (light source), an area CCD and an image-forming lens. The LED unit includes a large number of light emitting elements of each color of blue, green, red and infrared. Light emitted from the LED unit and having passed through a photographic film is received by the area CCD and is converted into an electric signal, which is outputted as photographic image data. When the light source is inspected, a focal point of the image-forming lens is adjusted to a light emitting surface of the LED unit. Then, the LED unit is turned on without setting the photographic film to receive the light thereof with the area CCD. On the basis of the obtained electric signal, a light-emission state of the LED unit is shown on a display.
Abstract:
In order to reduce time required for inputting images of a film, an image reading apparatus comprising a first detecting section which detects starting positions of respective frame images of the film and positions of marks, a storing section which sets and stores, on the basis of the starting positions and the positions of the marks detected by the first detecting section, a position of a frame corresponding mark, which corresponds to the starting position, every each of the frame images, a second detecting section, provided at downstream side of the first detecting section, which detects the position of the frame corresponding mark every each of the frame images and an image reading section which reads each of the image frames in order of frame number thereof on the basis of the stored contents in the storing section and detection data detected by the second detecting section, is provided.
Abstract:
A negative film setter has film holders for having set therein films to be fed. Each of the film holders has both a detecting sensor for detecting whether a film is set therein and a lamp which is lit when a film is set in a film holder and which is not lit when a film is not set therein. Therefore, a user can determine at a glance whether or not films are set in the film holders, thus allowing the user to skillfully set a plurality of films at film setting sections. Accordingly, due to detection by the detecting sensor, the negative film setter can recognize in which film holder a film is set, and films can be fed in a sequential order.
Abstract:
A light source device which can prevent a large-sized structure of the device, a light source device which can improve assembling efficiency and maintenability of the device, and an image forming method and apparatus in which occurrence of moisture condensation can be prevented, are provided. An LED substrate in which a large number of light emitting diodes (LED) are arranged on the surface thereof in a two-dimensional manner, a base, a Peltier element, and a radiating fin are formed integrally by urging force of a compression spring. The radiating fin is disposed in contact with a light source housing body. Further, in carrying out temperature adjustment control using the Peltier element, the temperature adjustment control is carried out only when the internal temperature of the device in which a light source device is provided, is a predetermined temperature or higher.
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 light source device including at least one first substrate, at least one second substrate, first light emitting elements, which emit red color light, and second light emitting elements, which emit infrared rays. The first light emitting elements are disposed at the first substrate, and the second light emitting elements are disposed at the second substrate. The light source device further has a light damping member, which dampens the infrared rays, and a transmitting member through which the infrared rays pass. The light damping member is disposed to correspond to the first substrate, and the transmitting member is disposed to correspond to the second substrate.
Abstract:
In an image scanner, an optical image is formed on a CCD image sensor through a lens unit from rays traveling through a picture frame placed in a film carrier, so image signals are picked up from the picture frame. The image signals are corrected with shading correction data that are read out from a memory in accordance with the magnification of the lens unit. The memory previously stores shading correction data for frequently used magnification steps. Shading correction data for less frequently used magnification are previously stored in a hard disc. If the lens unit is set at a magnification for which the memory does not store suitable shading correction data, the suitable shading correction data are read out from the hard disc, and written on the memory.
Abstract:
A CCD scanner is provided with a regulating circuit, which stores electric-current set values of LED elements of respective colors. The regulating circuit also stores desired values corresponding to optimum light amounts of the LED elements of the respective colors. By utilizing the electric-current set value and the desired value, binary search is performed for the LED elements every color. During the binary search, the light amount of the LED element is regulated, and an electric-current value thereof is determined so as to obtain the optimum light amount. By using the determined electric-current value, the LED element is turned on to read an image.