Abstract: A digital camera is composed of a camera body and a lens unit removebly attached to the camera body. When the lens unit is attached to the camera body, the lens unit and camera body send and receive control signals by antennas and wireless I/Fs each disposed on the lens unit and the camera body, respectively. In addition, data of the image captured with the lens unit is sent to the camera body by serial drivers, each disposed on the lens unit and the camera body, through connection contacts that electrically connect the lens unit and the camera body. When the lens unit is detached from the camera body, on the other hand, the control signals are sent and received by the antennas and the wireless I/Fs, and the image data is sent by the wireless communication.

Abstract: A projector comprises: a projector main frame having a memory for storing an image in form of data and a projection lens for projecting the image, in which the image stored in the memory is read and visualized, so that the visualized image is projected via the projection lens onto a screen; and a remote controller for performing a remote control of the projector main frame. The projector main frame has a remote controller mounting section for detachably mounting the remote controller at a position that the mounted remote controller covers the front of the projection lens of the projector main frame.

Abstract: A digital still camera includes a camera main unit and a lens barrel fitted thereon in a removable manner. First electric contacts in a group are disposed on the camera main unit. Second electric contacts in a group are disposed on the lens barrel, for electric contact with the first electric contacts upon mounting of the lens barrel on the camera main unit, and for communication between those. The camera main unit includes a connector, having the first electric contacts, and coupled with a camera front face in an openable manner. The lens barrel includes a cavity, having the second electric contacts, for receiving insertion of the connector opened in a forward direction. The first electric contacts are disposed on a rear surface positioned internally when the connector is closed. Furthermore, a retaining mechanism retains the connector being inserted in the cavity.

Abstract: A cellular phone has a black-and-white LCD that displays characters and communication information and a color LCD that displays an image. The image and the characters are displayed on the separate LCDs. Thus, the characters are not superimposed on the image, and they are easy to see. When the image is not needed (the user is not using the phone or the user is talking on the phone), only the black-and-white LCD displays the characters and the color LCD is turned off to save energy.

Abstract: A fuel cell is disposed inside a camera housing in the vicinity of a front panel, an upper panel, and a side panel in parallel with the respective panels. The invention provides broader cell area and adequate power can be supplied reliably.

Abstract: A fuel cell is disposed inside a camera housing in the vicinity of a front panel, an upper panel, and a side panel in parallel with the respective panels. The invention provides broader cell area and adequate power can be supplied reliably.

Abstract: A heat sink is attached to a subject-side end portion of a barrel body of a lens barrel. The heat sink is provided with a large number of radiation fins formed in whorl. A heat pipe is disposed between the heat sink and a mount-side end portion of the barrel body. A CCD is fixed to the mount-side end portion of the barrel body. Heat of the CCD is transferred to the heat pipe via the mount-side end portion. Successively, the heat is efficiently transferred to the heat sink by the heat pipe. The heat having been transferred to the heat sink is efficiently radiated into the air by the whorl-like radiation fins regardless of conditions of the lens barrel.

Abstract: A cellular phone is connected to a portable printer which uses an instant print film through connectors, and the printer prints an image according to image data stored in the cellular phone. The cellular phone can display the image to be printed on its LCD. The user can input information for the printing with push buttons of the cellular phone, and display the information on the LCD. Thus, the portable printer does not need an LCD and push buttons, and therefore the printer is small, light and inexpensive.

Abstract: A digital camera is composed of a camera body and a lens unit removebly attached to the camera body. When the lens unit is attached to the camera body, the lens unit and camera body send and receive control signals by antennas and wireless I/Fs each disposed on the lens unit and the camera body, respectively. In addition, data of the image captured with the lens unit is sent to the camera body by serial drivers, each disposed on the lens unit and the camera body, through connection contacts that electrically connect the lens unit and the camera body. When the lens unit is detached from the camera body, on the other hand, the control signals are sent and received by the antennas and the wireless I/Fs, and the image data is sent by the wireless communication.

Abstract: A digital still camera includes a camera main unit and a lens barrel fitted thereon in a removable manner. First electric contacts in a group are disposed on the camera main unit. Second electric contacts in a group are disposed on the lens barrel, for electric contact with the first electric contacts upon mounting of the lens barrel on the camera main unit, and for communication between those. The camera main unit includes a connector, having the first electric contacts, and coupled with a camera front face in an openable manner. The lens barrel includes a cavity, having the second electric contacts, for receiving insertion of the connector opened in a forward direction. The first electric contacts are disposed on a rear surface positioned internally when the connector is closed. Furthermore, a retaining mechanism retains the connector being inserted in the cavity.

Abstract: A heat sink is attached to a subject-side end portion of a barrel body of a lens barrel. The heat sink is provided with a large number of radiation fins formed in whorl. A heat pipe is disposed between the heat sink and a mount-side end portion of the barrel body. A CCD is fixed to the mount-side end portion of the barrel body. Heat of the CCD is transferred to the heat pipe via the mount-side end portion. Successively, the heat is efficiently transferred to the heat sink by the heat pipe. The heat having been transferred to the heat sink is efficiently radiated into the air by the whorl-like radiation fins regardless of conditions of the lens barrel.

Abstract: A digital camera has a display screen that improves an external design of the digital camera. The display screen is disposed on a front surface of the digital camera, which surface faces a subject when an image-taking optical system is directed to the subject. The display screen is capable of displaying an image such as a design image or a clock image. The digital camera is also capable of automatically displaying a through image when detecting a subject distance being shorter than a predetermined distance, i.e. a self-portrait is going to be taken. The digital camera is also capable of displaying an image based on personal image data so that a user can enjoy its external design.

Abstract: A shooting system of the present invention comprises a silver-salt camera unit shooting on a silver-salt photosensitized material, an electronic image pickup unit which is detachably combined with the silver-salt camera unit and in which a solid image pickup element is embedded, and a control unit which is combined with the electronic image pickup unit instead of the silver-salt camera unit.

Abstract: A projector comprises: a projector main frame having a memory for storing an image in form of data and a projection lens for projecting the image, in which the image stored in the memory is read and visualized, so that the visualized image is projected via the projection lens onto a screen; and a remote controller for performing a remote control of the projector main frame. The projector main frame has a remote controller mounting section for detachably mounting the remote controller at a position that the mounted remote controller covers the front of the projection lens of the projector main frame.

Abstract: A cellular phone has a black-and-white LCD that displays characters and communication information and a color LCD that displays an image. The image and the characters are displayed on the separate LCDs. Thus, the characters are not superimposed on the image, and they are easy to see. When the image is not needed (the user is not using the phone or the user is talking on the phone), only the black-and-white LCD displays the characters and the color LCD is turned off to save energy.

Abstract: In a printer incorporating thereinto a fuel cell for generating electricity upon receipt of supply of liquid fuel, an ink cartridge storing ink is mounted on a carriage, and the ink stored in the ink cartridge is ejected to a recording medium so that an image is recorded on the recording medium. The ink cartridge stores ink, and has a liquid fuel storage section that stores the liquid fuel, and a water storage section that stores water. The printer has: the fuel cell having a fuel electrode, an air electrode, and a solid-electrolyte film, in which the fuel electrode receives the liquid fuel and water is discharged through the air electrode; a fuel supplying path for supplying the liquid fuel stored in the liquid fuel storage section to the fuel electrode; and a water forwarding path for forwarding the water discharged from the air electrode to the water storage section.

Abstract: Disclosed is a lens-fitted photographic film unit containing a roll of unexposed photographic film. The lens-fitted photo film unit uses a specific battery of a different size or shape from conventional standardized batteries. A hollow protrusion is formed in a battery holding room. A hollow of the hollow protrusion joins with a dark room for the photographic film. If the hollow protrusion is cut away with the intention to put a conventional battery in the battery holding room, the light-tightness of the dark room is destroyed. When a cartridge chamber bottom lid is opened to remove a film cartridge, an interconnection lever transmits the opening movement of the lid to a sliding plate. Then the sliding plate turns a charge switch of a flash circuit ON, and locks the charge switch in the ON position.

Abstract: A fuel cell is disposed inside a camera housing in the vicinity of a front panel, an upper panel, and a side panel in parallel with the respective panels. The invention provides broader cell area and adequate power can be supplied reliably.

Abstract: Disclosed is a lens-fitted photographic film unit containing a roll of unexposed photographic film. The lens-fitted photo film unit uses a specific battery of a different size or shape from conventional standardized batteries. A hollow protrusion is formed in a battery holding room. A hollow of the hollow protrusion joins with a dark room for the photographic film. If the hollow protrusion is cut away with the intention to put a conventional battery in the battery holding room, the light-tightness of the dark room is destroyed. When a cartridge chamber bottom lid is opened to remove a film cartridge, an interconnection lever transmits the opening movement of the lid to a sliding plate. Then the sliding plate turns a charge switch of a flash circuit ON, and locks the charge switch in the ON position.

Abstract: A camera body of an instant camera is provided with four light sources LED1 to LED4 for a display. The four light sources LED1 to LED4 flash on and off in mutually different display modes in accordance with the state of progress of a series of processing of an exposure operation, a developing operation and a delivery operation which is carried out in accordance with one time photographic operation. This feature makes it possible to exactly inform a user of the state of progress of a series of processing.