JPS5998421U - optical device - Google Patents
optical deviceInfo
- Publication number
- JPS5998421U JPS5998421U JP19223282U JP19223282U JPS5998421U JP S5998421 U JPS5998421 U JP S5998421U JP 19223282 U JP19223282 U JP 19223282U JP 19223282 U JP19223282 U JP 19223282U JP S5998421 U JPS5998421 U JP S5998421U
- Authority
- JP
- Japan
- Prior art keywords
- camera
- optical device
- cam
- lens
- lever
- 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
Landscapes
- Lens Barrels (AREA)
- Focusing (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
図は本考案の一実施例を示すもので、第１図はカメラの
レンズ鏡筒部と関連機構の要部分解斜視図、第２図はそ
の要部の光軸上断面図、第３図および第４図はカム筒と
前群レンズとの関係を説明する展開図で、第３図は近距
離位置、第４図は遠距離位置、をそれぞれ示し、第５図
は本実施例に用いたレンズ系の像面湾曲の収差図を、通
常撮影モードとブリフォーカス撮影モードとについて、
近距離、遠距離別に示し、第６図は本実施例のカ
□メラが撮影効果のあるファインダ視野図の一例を
示す。
１．２，３．４・・・レンズ、７，８・・・レンズ筒、
・７ｂ・・・カム穴、９・・ｈカム１．９ｃ・・・カム
穴、１０゜１１・・・カムピン、１２・・・キーレバー
、１３・・・ブリフォーカスレバー、１４・・・投光素
子走査カム板、１５・・・ストップレバー、１７・・・
電磁石、１８・・・投光素子レバー、２０・・・投光素
子、３０・・・カメラ本／
体の構造部材。The figures show one embodiment of the present invention, in which Fig. 1 is an exploded perspective view of the main parts of the camera lens barrel and related mechanisms, Fig. 2 is a sectional view of the main parts on the optical axis, and Fig. 3 and Fig. 4 are developed views for explaining the relationship between the cam barrel and the front group lens, Fig. 3 shows the close-range position, Fig. 4 shows the far-distance position, and Fig. 5 is used for this example. The aberration diagrams of the field curvature of the lens system used in the normal shooting mode and the pre-focus shooting mode are shown below.
The figures are shown separately for short distance and long distance.
□ Shows an example of a viewfinder field diagram with a camera effect. 1.2, 3.4... Lens, 7, 8... Lens tube,
・7b...Cam hole, 9...h cam 1.9c...cam hole, 10°11...cam pin, 12...key lever, 13...brifocus lever, 14...light emission Element scanning cam plate, 15...stop lever, 17...
Electromagnet, 18... Light projecting element lever, 20... Light projecting element, 30... Camera book/body structural member.
Claims (1)
画面の中心以外にもレイアウト可能な、いオ）ゆるブリ
フォーカス機構を有するカメラにおいて、該ブリフォー
カス操作に連動して画面の中心と周辺のピント位置をす
らすべく撮影レンズ系の一部を変位させることを特徴と
する可変像面湾曲装置。In a camera with a built-in automatic focus adjustment device that allows the position of the subject to be focused to be laid out at locations other than the center of the screen, e.g. A variable field curvature device characterized by displacing a part of a photographic lens system in order to smooth the focal position of the periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19223282U JPS5998421U (en) | 1982-12-21 | 1982-12-21 | optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19223282U JPS5998421U (en) | 1982-12-21 | 1982-12-21 | optical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5998421U true JPS5998421U (en) | 1984-07-03 |
| JPH0121284Y2 JPH0121284Y2 (en) | 1989-06-26 |
Family
ID=30413751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19223282U Granted JPS5998421U (en) | 1982-12-21 | 1982-12-21 | optical device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5998421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006091410A (en) * | 2004-09-24 | 2006-04-06 | Fujinon Corp | Lens barrel |
-
1982
- 1982-12-21 JP JP19223282U patent/JPS5998421U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006091410A (en) * | 2004-09-24 | 2006-04-06 | Fujinon Corp | Lens barrel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0121284Y2 (en) | 1989-06-26 |
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