JPS62123610U - - Google Patents
Info
- Publication number
- JPS62123610U JPS62123610U JP896386U JP896386U JPS62123610U JP S62123610 U JPS62123610 U JP S62123610U JP 896386 U JP896386 U JP 896386U JP 896386 U JP896386 U JP 896386U JP S62123610 U JPS62123610 U JP S62123610U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lens barrel
- focal length
- optical axis
- holding member
- 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
- 239000003550 marker Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 5
- 238000003384 imaging method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Description
第１図ａは本考案の焦点距離調整装置の一実施
例を示す断面図、第１図ｂ，ｃは焦点距離調整の
手順の説明図、第２図は本考案の焦点距離調整装
置の他の実施例を示した断面図である。
１…レンズ、２…レンズ鏡筒、３…ブラケツト
、４…イメージセンサ、５…リング、６…案内部
材、７…案内溝、８…コイルスプリング、９…基
準マーカー。
FIG. 1a is a cross-sectional view showing one embodiment of the focal length adjustment device of the present invention, FIGS. 1b and c are explanatory diagrams of the focal length adjustment procedure, and FIG. 2 is a cross-sectional view showing an embodiment of the focal length adjustment device of the present invention. FIG. DESCRIPTION OF SYMBOLS 1... Lens, 2... Lens barrel, 3... Bracket, 4... Image sensor, 5... Ring, 6... Guide member, 7... Guide groove, 8... Coil spring, 9... Reference marker.
Claims (1)
レンズ鏡筒をレンズ光軸方向に移動可能に保持す
る保持部材とを備え、前記レンズ鏡筒を該保持部
材に対して移動させることにより焦点距離を調整
する焦点距離調整装置において、前記レンズ鏡筒
の保持部材に対する移動に伴つて保持部材に対し
てレンズ光軸方向に平行移動する案内部材を設け
ると共に、その案内部材にはマーカーを設け、レ
ンズが受光面に対して所定の結像位置に在るとき
に前記マーカーが前記保持部材の特定位置に一致
するように構成したことを特徴とする焦点距離調
整装置。 (2) 実用新案登録請求の範囲第１項記載におい
て、前記案内部材は保持部材に設けられた案内溝
内に設置された圧縮性弾性部材によつてレンズ光
軸方向に付勢され、その先端部がレンズ鏡筒の光
軸と直交する面に押し付けられていることを特徴
とする焦点距離調整装置。 (3) 実用新案登録請求の範囲第２項記載におい
て、前記レンズ鏡筒に押し付けられる前記案内部
材の先端部が球面又は円弧面等の曲面であること
を特徴とする焦点距離調整装置。[Claims for Utility Model Registration] (1) A lens barrel that holds an imaging lens, and a holding member that holds the lens barrel so as to be movable in the direction of the optical axis of the lens, and that holds the lens barrel. In a focal length adjustment device that adjusts a focal length by moving relative to a member, a guide member is provided that moves parallel to the holding member in the lens optical axis direction as the lens barrel moves relative to the holding member; Focal length adjustment characterized in that the guiding member is provided with a marker, and the marker is configured to coincide with a specific position of the holding member when the lens is at a predetermined image forming position with respect to the light receiving surface. Device. (2) Utility Model Registration Claim 1 In the first claim, the guide member is biased in the direction of the optical axis of the lens by a compressible elastic member installed in a guide groove provided in the holding member, and the guide member is biased in the direction of the lens optical axis. A focal length adjusting device characterized in that a portion of the lens barrel is pressed against a surface perpendicular to an optical axis of a lens barrel. (3) Utility Model Registration The focal length adjusting device according to claim 2, wherein the tip of the guide member pressed against the lens barrel is a curved surface such as a spherical surface or an arcuate surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986008963U JPH0446252Y2 (en) | 1986-01-27 | 1986-01-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986008963U JPH0446252Y2 (en) | 1986-01-27 | 1986-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62123610U true JPS62123610U (en) | 1987-08-06 |
| JPH0446252Y2 JPH0446252Y2 (en) | 1992-10-30 |
Family
ID=30793833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986008963U Expired JPH0446252Y2 (en) | 1986-01-27 | 1986-01-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446252Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54149620A (en) * | 1978-04-20 | 1979-11-24 | Mueller Karl | Bellows lens hood for photographic camera |
| JPS5879709U (en) * | 1981-11-26 | 1983-05-30 | 三菱電機株式会社 | Lens support device for projection television receivers |
| JPS58150915A (en) * | 1982-03-03 | 1983-09-07 | Mitsubishi Electric Corp | Light emitting device |
-
1986
- 1986-01-27 JP JP1986008963U patent/JPH0446252Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54149620A (en) * | 1978-04-20 | 1979-11-24 | Mueller Karl | Bellows lens hood for photographic camera |
| JPS5879709U (en) * | 1981-11-26 | 1983-05-30 | 三菱電機株式会社 | Lens support device for projection television receivers |
| JPS58150915A (en) * | 1982-03-03 | 1983-09-07 | Mitsubishi Electric Corp | Light emitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0446252Y2 (en) | 1992-10-30 |
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