| 摘要 |
PROBLEM TO BE SOLVED: To provide a collapsible camera which can be made thinner in terms of the camera body thickness in a collapsed state. SOLUTION: The optical axis J of a photographing optical system is eccentric downward by a distance (d) from the center axis J2 of a straight advancing cylinder 23, as shown in Fig. Regarding the straight advancing cylinder 23, the upper space above the optical axis J is made wider. In a state where the lens barrel 2 is not collapsed, a 2nd group lens 25 held by a holding frame 27 is arranged on the optical axis J. When a cam cylinder 22 is rotated in a direction shown by an arrow R in collapsing, a follower pin 271 falls out a cam groove 221 and enters a cam groove 223, then, the holding frame 27 is oscillated, and the 2nd group lens 25 is retreated from the optical axis J to the upper space. Consequently, the camera thickness in the collapsed state is further reduced. COPYRIGHT: (C)2006,JPO&NCIPI
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