Wide-angle/telephotography convertible camera with electronic flash
AssigneeFuji Photo Film Co., Ltd.
InventorKazuo Kamata
Life of this patent
Estimating the term…
Abstract
A camera can be converted between use for wide-angle photography and telephotography, by inserting a conversion lens into or removing the conversion lens from the optical train. A changeover ring is rotatable between two positions to effect this conversion. A flash unit moves between two positions: a raised position in which the flash unit is directly exposed, for telephotography, and a lowered position in which the flash unit is disposed behind a light diffusing plate, for wide-angle photography. Movement of the changeover ring respectively frees the flash unit for upward movement, or lowers it. A spring-urged detent releasably retains the flash unit in lowered position.
Claims15
A camera selectively usable either for wide-angle photography or for telephotography, by changing the focal length of a taking lens system by manipulation of a changeover member, the camera having a flash unit mounted for movement on the camera between a first lowered position and a second raised position, a fixed light diffusing plate behind which said flash unit is dispoded in said first position, means actuated by movement of said changeover member is a direction to convert the camera for wide-angle photography, to move said flash unit to said first position, means responsive to movement of said changeover member in a direction to convert the camera to telephotography, to free said flash unit for movement toward said second position, means to energize said flash unit in each of said positions, and spring means urging said flash unit toward said second position.
A camera selectively usable either for wide-angle photography or for telephotography, by changing the focal length of a taking lens system by manipulation of a changeover member, the camera having a flash unit mounted for movement on the camera between a first lowered position and a second raised position, a light diffusing plate behind which said flash unit is disposed in said first position, means actuated by movement of said changeover member in a direction to convert the camera for wide-angle photography, to move said flash unit to said first position, means responsive to movement of said changeover member in a direction to convert the camera to telephotography, to free said flash unit for movement toward said second position, said lens system including a conversion lens which adapts the camera to telephotography when inserted in the optical train of said lens system and for wide-angle photography when removed from said optical train, said changeover member having means thereon contacting said conversion lens to move said conversion lens with said chageover member between said two positions of said changeover members, a lens barrel holding a main lens of said lens system and mounted for movement along the optical axis of said main lens, and a lens holder holding said conversion lens and mounted for movement of said barrel in a direction perpendicular to the optical axis of said main lens, said changeover member being a ring rotatably mounted on and surrounding said lens barrel.
A camera selectively usable either for wide-angle photography or for telephotography, by changing the focal length of a taking lens system by manipulation of a changeover member, the camera having a flash unit mounted for movement on the camera between a first lowered position and a second raised position, a light diffusing plate behind which said flash unit is disposed in said first position, means actuated by movement of said changeover member in a direction to convert the camera for wide-angle photography, to move said flash unit to said first position, means responsive to movement of said changeover member in a direction to convert the camera to telephotography, to free said flash unit for movement toward said second position, and a finder comprising a first objective lens, a second objective lens and an eyepiece, said first objective lens being adapted to move between a first position where said first objective lens is aligned with said eyepiece and a second position where said first objective lens is placed in a space formed between said flash device and light diffusing plate, so as to change the magnification of said finder.
Dependencies are inferred from the claim text.