JPS61201013U - - Google Patents
Info
- Publication number
- JPS61201013U JPS61201013U JP8520885U JP8520885U JPS61201013U JP S61201013 U JPS61201013 U JP S61201013U JP 8520885 U JP8520885 U JP 8520885U JP 8520885 U JP8520885 U JP 8520885U JP S61201013 U JPS61201013 U JP S61201013U
- Authority
- JP
- Japan
- Prior art keywords
- light
- lever
- fitted
- optical axis
- emitting element
- 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.)
- Pending
Links
Landscapes
- Focusing (AREA)
Description
第１図は本考案に係る自動合焦装置の一実施例
の要部縦断面図、第２図はその測距用カム部分の
断面図、第３図はその要部平面図、第４図は従来
例の自動合焦装置を具えたレンズ鏡筒の縦断面図
、第５図はその要部の拡大縦断面図、第６図はそ
の距離環の変形状態を説明する要部断面図である
。
２０……前部筒、２１……距離環、２２……ビ
ス、２３……別駒カム、２４ａ，２４ｂ……板ば
ね、２５……固定筒、２６……受光センサ、２７
……受光レバー、２８……カムフオロワ、Ｌ１１
……合焦レンズ。
Fig. 1 is a vertical cross-sectional view of a main part of an embodiment of an automatic focusing device according to the present invention, Fig. 2 is a cross-sectional view of the distance measuring cam portion thereof, Fig. 3 is a plan view of the main part, and Fig. 4 1 is a vertical sectional view of a lens barrel equipped with a conventional automatic focusing device, FIG. 5 is an enlarged vertical sectional view of the main part thereof, and FIG. 6 is a sectional view of the main part explaining the deformed state of the distance ring. be. 20... Front tube, 21... Distance ring, 22... Screw, 23... Separate piece cam, 24a, 24b... Leaf spring, 25... Fixed tube, 26... Light receiving sensor, 27
...Light receiving lever, 28...Cam follower, L 11
...Focusing lens.
Claims (1)
動するカム部材と従動するレバーとでその光軸方
向に配設された投光素子と受光センサとの距離を
変化させ、その距離変化によつて生ずる投光素子
から投光され被写体で反射し、受光センサで受光
される出力に応じて合焦状態を検知する自動合焦
装置において、該カム部材が合焦レンズを保持す
る前部筒に嵌装され、ビスで固着した距離環とは
独立させて該距離環に嵌め込またかつ板ばねで付
勢されて両端が該前部筒の外周面に接する別駒カ
ムになつていることを特徴とする自動合焦装置。 The distance between the light emitting element and the light receiving sensor arranged in the direction of the optical axis is changed by a cam member that is linked to the movement of the focusing lens in the photographic lens in the direction of the optical axis, and a lever that is driven by the lever is used. In an automatic focusing device that detects the in-focus state according to the output of light emitted from a light-emitting element, reflected by a subject, and received by a light-receiving sensor, the cam member is attached to a front cylinder that holds a focusing lens. It is characterized by a separate piece cam that is fitted into the distance ring independently of the distance ring that is fitted and fixed with screws, is biased by a leaf spring, and has both ends in contact with the outer peripheral surface of the front cylinder. Automatic focusing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8520885U JPS61201013U (en) | 1985-06-07 | 1985-06-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8520885U JPS61201013U (en) | 1985-06-07 | 1985-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61201013U true JPS61201013U (en) | 1986-12-16 |
Family
ID=30635397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8520885U Pending JPS61201013U (en) | 1985-06-07 | 1985-06-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61201013U (en) |
-
1985
- 1985-06-07 JP JP8520885U patent/JPS61201013U/ja active Pending