JPS59131726U - Diopter adjustment device for single-lens reflex cameras - Google Patents
Diopter adjustment device for single-lens reflex camerasInfo
- Publication number
- JPS59131726U JPS59131726U JP2649283U JP2649283U JPS59131726U JP S59131726 U JPS59131726 U JP S59131726U JP 2649283 U JP2649283 U JP 2649283U JP 2649283 U JP2649283 U JP 2649283U JP S59131726 U JPS59131726 U JP S59131726U
- Authority
- JP
- Japan
- Prior art keywords
- diopter adjustment
- eyepiece
- holder
- adjustment lens
- lens holder
- 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
- Viewfinders (AREA)
- Cameras In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の視度調整装置を適用した一眼レフレッ
クスカメラのファインダー装置を力・メラボデイから分
離した状態を示す外観斜視図、第２図は本考案の一実施
例を適用したファインダー装置の部分分解切欠斜視図、
第３図は同上実施例を適用したファインダー装置の上部
を覆う部材を取り去り、一部を切欠いた部分平面図、第
４図は同上実施例を適用したファインダー装置の後部を
覆う部分を取り去り、一部を切欠いた部分背面図である
。
１・・・・・・カメラボディ、１０・・・・・・ファイ
ンダー装置、１１・・・・・・接眼レンズ、１２・・・
・・・接眼レンズ用ホルダー、１３・・・・・・ペンタ
プリズムホルダー、１６・・・・・・視度調整用レンズ
、１フ・・・・・・視度調整用レンズホルダー、１８・
・・・・・視度調整用レンズ案内ガイド軸、２８・・・
・・・ペンタプリズム。Fig. 1 is an external perspective view showing the viewfinder device of a single-lens reflex camera to which the diopter adjustment device of the present invention is applied, separated from the camera body, and Fig. 2 is a viewfinder device to which an embodiment of the present invention is applied. Partially exploded perspective view of
Fig. 3 is a partial plan view of the finder device to which the above embodiment is applied, with the member covering the upper part removed, and Fig. 4 is a partial plan view of the finder device to which the above embodiment is applied, with the part covering the rear part removed. FIG. 3 is a partial rear view with a portion cut away. 1... Camera body, 10... Finder device, 11... Eyepiece, 12...
...Eyepiece holder, 13...Penta prism holder, 16...Diopter adjustment lens, 1 frame...Diopter adjustment lens holder, 18.
...Lens guide shaft for diopter adjustment, 28...
...Pentaprism.
Claims (1)
近傍に接眼レンズ光軸と略平行に形成される第１の軸受
部と、取付開口部近傍からペンタプリズム方向に伸びる
枝部の先端ｉこ形成され第１の軸受部と同軸上に形成さ
れる第２の軸受部とを有する接眼レンズ用ホルダーと、
該接眼レンズ用ホルダーの第１と第２の軸受部に両端部
で軸受けされて接眼レンズ光軸と平行に伸長する視度調
整用レンズ案内ガイド軸と、該視度調整用レンズ案内ガ
イド軸に嵌合して軸方向に摺動する移動案内用開口と、
視度調整用レンズを固設した取付用開口とを有する視度
調整用レンズホルダーと、該視度調整用レンズホルダー
に係合して軸方向に駆動する駆動手段とを備えた一眼レ
フレックスカメラの視度調整装置。 ２ 接眼レンズ用ホルダーに形成される枝部はぺ□ンタ
プリズムのダハ面の上方まで達する長さに形成されてい
ることを特徴とする実用新案登録請求の範囲第１項記載
の一眼レフレックスカメラの視度調整装置。 ３ 接眼レンズ用ホルダーは、接眼レンズ光軸と平行に
伸長する溝を有し、視度調整用レンズホルダーは上記溝
に係合して溝内を摺動して視度調整用レンズホルダーの
回転を阻止する回転防止手段を有していることを特徴と
する実用新案登録請求の範囲第１項記載の一眼レフレッ
クスカメラの視度調整装置。 ４ 駆動手段は、カメラ外から操作されて回転するツマ
ミ部材と、該ツマミ部材と同軸一体に回転するように軸
支され、カム溝を有するカム部材と、該カム部材のカム
溝に嵌入するピンを有し、カム部材の回転とともにカム
形状に従って移動し得る操作レバーと、該操作レバーと
一体的に連結されるとともに視度調整用レンズホルダー
に係合し、接眼レンズ光軸と平行に伸長する軸に嵌合し
て操作レバーの移動とともに軸方向へ移動し、視度調整
用レンズホルダーを軸方向へ駆動する操作軸受部材とか
らなることを特徴とする実用新案登録請求の範囲第１項
記載の一眼レフレックスカメラの視度調整装ｍ。[Claims for Utility Model Registration] 1. A mounting opening in which an eyepiece is fixedly installed, a first bearing portion formed near the mounting opening substantially parallel to the optical axis of the eyepiece, and a pentameter extending from the vicinity of the mounting opening. an eyepiece holder having a second bearing part formed coaxially with the first bearing part and formed at the tip of a branch part extending in the prism direction;
a diopter adjustment lens guide shaft supported at both ends by the first and second bearing portions of the eyepiece holder and extending parallel to the eyepiece optical axis; a movement guide opening that fits and slides in the axial direction;
A single-lens reflex camera comprising: a diopter adjustment lens holder having a mounting opening in which a diopter adjustment lens is fixed; and a driving means that engages with the diopter adjustment lens holder and drives the diopter adjustment lens holder in the axial direction. Diopter adjustment device. 2. The single-lens reflex camera according to claim 1, wherein the branch portion formed on the eyepiece holder is formed in a length that reaches above the roof surface of the pentaprism. Diopter adjustment device. 3 The eyepiece holder has a groove extending parallel to the eyepiece optical axis, and the diopter adjustment lens holder engages with the groove and slides within the groove to rotate the diopter adjustment lens holder. The diopter adjustment device for a single-lens reflex camera according to claim 1, characterized in that it has a rotation prevention means for preventing rotation. 4. The driving means includes a knob member that is operated from outside the camera to rotate, a cam member that is coaxially supported to rotate coaxially with the knob member and has a cam groove, and a pin that fits into the cam groove of the cam member. an operating lever that can move according to the cam shape as the cam member rotates; and an operating lever that is integrally connected to the operating lever, engages with the diopter adjustment lens holder, and extends parallel to the optical axis of the eyepiece. Utility model registration claim 1, characterized by comprising an operation bearing member that fits on the shaft and moves in the axial direction with the movement of the operation lever, and drives the diopter adjustment lens holder in the axial direction. Diopter adjustment device for single-lens reflex cameras.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2649283U JPS59131726U (en) | 1983-02-23 | 1983-02-23 | Diopter adjustment device for single-lens reflex cameras |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2649283U JPS59131726U (en) | 1983-02-23 | 1983-02-23 | Diopter adjustment device for single-lens reflex cameras |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59131726U true JPS59131726U (en) | 1984-09-04 |
Family
ID=30157406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2649283U Pending JPS59131726U (en) | 1983-02-23 | 1983-02-23 | Diopter adjustment device for single-lens reflex cameras |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59131726U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03282521A (en) * | 1990-03-30 | 1991-12-12 | Fuji Photo Optical Co Ltd | Diopter adjusting device for finder |
| JP2015072292A (en) * | 2013-10-01 | 2015-04-16 | リコーイメージング株式会社 | Imaging device and assembly method of the same |
| JP2020086098A (en) * | 2018-11-22 | 2020-06-04 | パナソニックＩｐマネジメント株式会社 | Diopter adjustment mechanism and optical device having diopter adjustment mechanism |
-
1983
- 1983-02-23 JP JP2649283U patent/JPS59131726U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03282521A (en) * | 1990-03-30 | 1991-12-12 | Fuji Photo Optical Co Ltd | Diopter adjusting device for finder |
| JP2015072292A (en) * | 2013-10-01 | 2015-04-16 | リコーイメージング株式会社 | Imaging device and assembly method of the same |
| JP2020086098A (en) * | 2018-11-22 | 2020-06-04 | パナソニックＩｐマネジメント株式会社 | Diopter adjustment mechanism and optical device having diopter adjustment mechanism |
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