JPS6436815U - - Google Patents
Info
- Publication number
- JPS6436815U JPS6436815U JP13277287U JP13277287U JPS6436815U JP S6436815 U JPS6436815 U JP S6436815U JP 13277287 U JP13277287 U JP 13277287U JP 13277287 U JP13277287 U JP 13277287U JP S6436815 U JPS6436815 U JP S6436815U
- Authority
- JP
- Japan
- Prior art keywords
- interlocking shaft
- engaging portion
- lens body
- photo sensor
- focus ring
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Focusing (AREA)
- Lens Barrels (AREA)
Description
第１図は本考案の実施例の合焦端部検出装置を
組込んだ撮影レンズの一部断面を含む側面図、第
２図は同撮影レンズの一部断面を含む正面図、第
３図ａないしｆは第１図の線―に沿つた断面
図で合焦端部検出装置の作動を説明するためのも
のであり、第４図は従来の撮影レンズの一部断面
を含む側面図、第５図及び第６図は従来の撮影レ
ンズの正面図である。
１……フオーカスリング、２……鏡胴本体、３
……合焦駆動系、４……第１歯車、６……第２歯
車、７……保持体、８……連動軸、１０……第４
歯車、１３……反射用明部、１４……バネ、１５
……回転子、１６……回転コマ、１７……ホトセ
ンサー、２０……検出装置カバー、４０……合焦
端部検出装置、６０……合焦駆動系カバー。
FIG. 1 is a side view with a partial cross section of a photographic lens incorporating a focusing end detection device according to an embodiment of the present invention, FIG. 2 is a front view with a partial cross section of the photographic lens, and FIG. 3 is a front view of the photographic lens with a partial cross section. a to f are cross-sectional views taken along the line - in FIG. 1 for explaining the operation of the focusing end detection device, and FIG. 4 is a side view including a partial cross-section of a conventional photographic lens; 5 and 6 are front views of conventional photographic lenses. 1... Focus ring, 2... Lens barrel body, 3
... Focusing drive system, 4... First gear, 6... Second gear, 7... Holder, 8... Interlocking shaft, 10... Fourth
Gear, 13... Reflective bright part, 14... Spring, 15
... rotor, 16 ... rotating top, 17 ... photo sensor, 20 ... detection device cover, 40 ... focusing end detection device, 60 ... focusing drive system cover.
Claims (1)
ーカスリングと、該フオーカスリングに連動して
回動する連動軸と、該連動軸に固着され、外周縁
に第１係合部を有する回転コマと、上記連動軸と
同軸にこれに回動自在に設けられ、上記第１係合
部に係合する第２係合部を有する回転子と、該回
転子に設けられた光制御部材と、発光部と受光部
からなるホトセンサーと、上記連動軸に巻付けら
れ両端部をレンズ本体と一体の部材に設けられた
規制孔を貫通させ、該両端部が上記反射部材を上
記ホトセンサーと対向しない位置にあるように付
勢するように形成されたバネとを包含してなるこ
とを特徴とするレンズ合焦機構の合焦端部検出装
置。 (2) 上記光制御部材が反射部材である実用新案
登録請求の範囲第(1)項に記載のレンズ合焦機構
の合焦端部検出装置。[Claims for Utility Model Registration] (1) A focus ring rotatably attached to the lens body, an interlocking shaft that rotates in conjunction with the focus ring, and an outer peripheral edge fixed to the interlocking shaft. a rotary piece having a first engaging portion on the rotor; a rotor provided coaxially with the interlocking shaft so as to be rotatable thereon and having a second engaging portion that engages with the first engaging portion; A light control member provided on the lens body, a photo sensor consisting of a light emitting part and a light receiving part, and a photo sensor that is wound around the interlocking shaft and has both ends passed through regulation holes provided in a member that is integrated with the lens body. and a spring formed to bias the reflecting member to a position where it does not face the photosensor. (2) The focusing end detection device for a lens focusing mechanism according to claim (1), wherein the light control member is a reflective member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13277287U JPH0529453Y2 (en) | 1987-08-31 | 1987-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13277287U JPH0529453Y2 (en) | 1987-08-31 | 1987-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6436815U true JPS6436815U (en) | 1989-03-06 |
| JPH0529453Y2 JPH0529453Y2 (en) | 1993-07-28 |
Family
ID=31390042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13277287U Expired - Lifetime JPH0529453Y2 (en) | 1987-08-31 | 1987-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0529453Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01224715A (en) * | 1988-03-04 | 1989-09-07 | Sony Corp | End point detector |
| JPH04121913U (en) * | 1991-04-10 | 1992-10-30 | 横浜ゴム株式会社 | Guide and holding device for cylindrical belt conveyor |
-
1987
- 1987-08-31 JP JP13277287U patent/JPH0529453Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01224715A (en) * | 1988-03-04 | 1989-09-07 | Sony Corp | End point detector |
| JPH04121913U (en) * | 1991-04-10 | 1992-10-30 | 横浜ゴム株式会社 | Guide and holding device for cylindrical belt conveyor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0529453Y2 (en) | 1993-07-28 |