JPS6362809U - - Google Patents
Info
- Publication number
- JPS6362809U JPS6362809U JP15640086U JP15640086U JPS6362809U JP S6362809 U JPS6362809 U JP S6362809U JP 15640086 U JP15640086 U JP 15640086U JP 15640086 U JP15640086 U JP 15640086U JP S6362809 U JPS6362809 U JP S6362809U
- Authority
- JP
- Japan
- Prior art keywords
- focusing lens
- lens
- focusing
- lens group
- helicoid
- 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
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
Landscapes
- Lens Barrels (AREA)
Description
第１図は本考案の実施例を示すズームレンズ鏡
胴の断面図、第２図は従来例のズームレンズ鏡胴
の部分断面図である。
１…フオーカシングレンズ群、２…フオーカシ
ングレンズ枠、３…雌ヘリコイド、４…固定胴、
５…変倍レンズ群、６…ガイド板、７…変倍レン
ズ枠、８…レンズ押え、９…フオーカシングレン
ズ群、１０…フオーカシングレンズ枠、１１…雌
ヘリコイド、１２…変倍レンズ群、１３…レンズ
枠、１４…レンズ押え、１５…雄ヘリコイド。
FIG. 1 is a sectional view of a zoom lens barrel showing an embodiment of the present invention, and FIG. 2 is a partial sectional view of a conventional zoom lens barrel. 1...Focusing lens group, 2...Focusing lens frame, 3...Female helicoid, 4...Fixed barrel,
5... Variable power lens group, 6... Guide plate, 7... Variable power lens frame, 8... Lens holder, 9... Focusing lens group, 10... Focusing lens frame, 11... Female helicoid, 12... Variable power lens Group, 13... Lens frame, 14... Lens holder, 15... Male helicoid.
Claims (1)
離に合せて光軸方向に移動できるようにした距離
設定部材を有するレンズ鏡胴において、前記フオ
ーカシングレンズ群を保持しているフオーカシン
グレンズ枠に結合した雌ヘリコイドとネジ篏合し
ている雄ヘリコイドの前端に突当部が設けられ、
該突当部が前記フオーカシングレンズ枠に当るよ
うにしたレンズ保持体の可動範囲規制機能により
フオーカシングレンズと他部材との衝突を避ける
ことを特徴とするフオーカシングレンズの傷つき
防止機構。 In a lens barrel having a distance setting member that allows a focusing lens group of a photographic lens to be moved in the optical axis direction according to a photographing distance, a focusing lens frame holding the focusing lens group An abutting portion is provided at the front end of the male helicoid screwed together with the combined female helicoid,
A mechanism for preventing scratches on a focusing lens, characterized in that a collision between the focusing lens and other members is avoided by a movable range regulating function of a lens holder in which the abutment portion contacts the focusing lens frame. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15640086U JPS6362809U (en) | 1986-10-13 | 1986-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15640086U JPS6362809U (en) | 1986-10-13 | 1986-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6362809U true JPS6362809U (en) | 1988-04-26 |
Family
ID=31077979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15640086U Pending JPS6362809U (en) | 1986-10-13 | 1986-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6362809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020181066A (en) * | 2019-04-25 | 2020-11-05 | キヤノン株式会社 | Optical apparatus |
-
1986
- 1986-10-13 JP JP15640086U patent/JPS6362809U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020181066A (en) * | 2019-04-25 | 2020-11-05 | キヤノン株式会社 | Optical apparatus |
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