JP2000122141A5 - - Google Patents
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- Publication number
- JP2000122141A5 JP2000122141A5 JP1998292329A JP29232998A JP2000122141A5 JP 2000122141 A5 JP2000122141 A5 JP 2000122141A5 JP 1998292329 A JP1998292329 A JP 1998292329A JP 29232998 A JP29232998 A JP 29232998A JP 2000122141 A5 JP2000122141 A5 JP 2000122141A5
- Authority
- JP
- Japan
- Prior art keywords
- pentamirror
- drive arm
- shaft
- rotatably attached
- swing support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004062 sedimentation Methods 0.000 description 1
Description
ペンタミラー11は、焦点板ブロック21に結像した像の左右方向の向きを反転させるダハミラー15と、該像の上下方向の向きを反転させる第三反射面17とを備えている。ペンタミラー11にはさらに、その接眼レンズ側下端部近傍の両側に揺動支軸49を有し、その揺動支軸49は各々ペンタミラー11の外側に固定された長溝(カム溝)51に摺動かつ回動可能に嵌合している。さらに、揺動支軸49の近傍には、ペンタミラー11が外部に延出し、駆動アーム53の一端が回動可能に軸着され、この駆動アーム53の他端は軸55を介してカメラ本体29に回動可能に軸着されている。長溝51の方向は、ペンタミラー11が収納位置にあるときの駆動アーム53の延長方向に向いている。 The pentamirror 11 includes a roof mirror 15 that reverses the horizontal direction of the image formed on the focal plate block 21, and a third reflecting surface 17 that reverses the vertical direction of the image. The pentamirror 11 further has swing support shafts 49 on both sides near the lower end portion on the eyepiece side, and the swing support shafts 49 are formed into long grooves (cam grooves) 51 fixed to the outside of the pentamirror 11, respectively. It is slidably and rotatably fitted. Further, a pentamirror 11 extends to the outside in the vicinity of the swing support shaft 49, one end of the drive arm 53 is rotatably attached to the shaft, and the other end of the drive arm 53 is rotatably attached to the camera body via the shaft 55. It is rotatably attached to 29. The direction of the long groove 51 is the extension direction of the drive arm 53 when the pentamirror 11 is in the retracted position.
また、ペンタミラー11の沈降は、駆動アーム53を手動で回転操作させる機構によるものであってもよいし、軸55にモータなどの駆動手段を取り付けて、回転駆動させるものであってもよい。また、可動外装13を手で押し下げる動作に連動して、ペンタミラー11を沈降させる機構でもよい。 Further, the sedimentation of the pentamirror 11 may be caused by a mechanism for manually rotating the drive arm 53 , or may be driven by rotating the shaft 55 by attaching a driving means such as a motor. Further, a mechanism may be used in which the pentamirror 11 is settled in conjunction with the operation of pushing down the movable exterior 13 by hand.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10292329A JP2000122141A (en) | 1998-10-14 | 1998-10-14 | Pentagonal mirror type single lens reflex camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10292329A JP2000122141A (en) | 1998-10-14 | 1998-10-14 | Pentagonal mirror type single lens reflex camera |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000122141A JP2000122141A (en) | 2000-04-28 |
JP2000122141A5 true JP2000122141A5 (en) | 2005-10-20 |
Family
ID=17780387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10292329A Withdrawn JP2000122141A (en) | 1998-10-14 | 1998-10-14 | Pentagonal mirror type single lens reflex camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000122141A (en) |
-
1998
- 1998-10-14 JP JP10292329A patent/JP2000122141A/en not_active Withdrawn
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