Abstract: An optical apparatuses having a cartridge chamber lid, includes a motor, a sun gear which is driven by the motor, a planet gear meshing with the sun gear and arranged to move from a first position to a second position while rotating when the sun gear rotates in a first direction, and to move from the second position to the first position while rotating when the sun gear rotates in a second direction opposite to the first direction, and a lock mechanism which unlocks the cartridge chamber lid when the planet gear moves from the first position to the second position, and which maintains locking the cartridge chamber lid when the planet gear moves from the second position to the first position.

Abstract: A camera comprises a cartridge chamber, a spool chamber, and a battery chamber located on the side of at least one of the cartridge chamber and the spool chamber with respect to an optical axis of a photo-taking optical unit disposed between the cartridge chamber and the spool chamber, and at least one of above and below at least one of the cartridge chamber and the spool chamber.

Abstract: A camera comprises a cartridge changer, a spool chamber, and a battery chamber located on the side of at least one of the cartridge chamber and the spool chamber with respect to an optical axis of a photo-taking optical unit disposed between the cartridge chamber and the spool chamber, and at least one of above and below at least one of the cartridge chamber and the spool chamber.

Abstract: An optical apparatuses having a cartridge chamber lid, includes a motor, a sun gear which is driven by the motor, a planet gear meshing with the sun gear and arranged to move from a first position to a second position while rotating when the sun gear rotates in a first direction, and to move from the second position to the first position while rotating when the sun gear rotates in a second direction opposite to the first direction, and a lock mechanism which unlocks the cartridge chamber lid when the planet gear moves from the first position to the second position, and which maintains locking the cartridge chamber lid when the planet gear moves from the second position to the first position.

Abstract: A cartridge loading apparatus for a camera includes a cartridge chamber into which a film cartridge is loaded, a first setting member for setting a film outlet of the film cartridge to orient in a predetermined direction in a state where the film cartridge has been completely loaded into the cartridge chamber, and a second setting member for setting the film outlet of the film cartridge to orient in a direction angularly deviating from the predetermined direction when the film cartridge passes, a cartridge insertion opening of the cartridge chamber.

Abstract: In an imaging field changing apparatus capable of changing three or more imaging fields having different aspect ratios, a changing order can be set such that one of two imaging fields having largest rate of change in aspect ratios during imaging field changing is changed to the other of the two imaging fields. The imaging fields are exemplified as a standard size, a panorama size, and a high-vision size. Aspect ratio changing is performed such that the standard size is changed to the panorama size. A change in imaging field can be easily recognized. For example, when a change is to be made between the standard size and the panorama size, the upper and lower portions are cut or trimmed and the right and left portions are widened to emphasize wideness.

Abstract: In an apparatus such as a camera adapted for an image recording medium cartridge having a cover for opening and closing an opening part for passing an image recording medium and an operation part for operating the cover, there are provided a first member for actuating the operation part of the cartridge and a second member for causing the operation part of the cartridge and the first member to engage each other according to closing of a cover of a cartridge chamber in which the cartridge is loaded.

Abstract: An apparatus to which an openable and closable film cartridge is applied, the film cartridge having an engaging part for opening and closing thereof, comprises a first device for causing at least one of opening and closing operations of the cartridge to be performed by engagement with the engaging part and a second device for enabling the first device to advance and retract along an axis of the engaging part.

Abstract: A camera, an apparatus, or a device adapted for the camera or the apparatus, arranged to use an image recording medium cartridge, is provided with a cover for closing an opening part from which the cartridge is to be removed from the camera or the apparatus, a first part arranged to automatically return an image recording medium to the cartridge loaded on the camera or the apparatus, and a second part arranged to change at least between a first state in which no force is imparted to a member for moving the image recording medium and a second state in which a force is allowed to be imparted to the member for moving the image recording medium and to allow the image recording medium to be returned to the cartridge without using the first part when the second part is in the second state, the second part being changeable at least between the first state and the second state when the opening part is closed with the cover.

Abstract: A camera adapted to use an image recording medium cartridge in which an image recording medium is contained or an apparatus adapted for this kind of camera includes a determination portion for determining whether the image recording medium contained in the image recording medium cartridge is already developed.

Abstract: A camera uses a shape-memory material featuring the constuction and arrangement of the elements of shape-memory material in which different operations of the camera can be made performed by a common member of shape-memory material, or the operation of the camera can be recycled at a high rate as a fan is driven when the film is transported with advantages of improving features of the camera.