| 摘要 |
PURPOSE:To prevent incident light eclipse caused by a zoom lens barrel by incorporating an incident angle changeable part material into an light emitting part case and providing the incident angle changeable mechanism with a clutch mechanism which transmits zooming operation to the incident angle changeable mechanism at the projected position and does not transmit the zooming operation at the stored position. CONSTITUTION:When the zooming operation is conducted, a zoom motor 30 revolves, and the zooming of a mirror barrel block 20 is carried out, and a cam board 42 reciprocates ring to left through a sector gear 22, pinion 34, a row of speed reducing gears 38 and a rack 44. By this movement of the cam board 42, while the magnification of a variable power finder device 40 changes in response to the focal distance change of the mirror barrel block 20, a room lever 80 where an incident angle changeable cam plane 48 slidingly contact with a cam plane 81 oscillates, a light emitting part 56 shifts back and forth, and the incident angle of a zoom stroboscopic device 50 changes in response to the focal distance change of the mirror barrel block 20. Thus, the case 52 is projected by releasing a lock release lever and the incident light eclipse caused by the zoom lens barrel is prevented. |
