JPS61119114U - - Google Patents
Info
- Publication number
- JPS61119114U JPS61119114U JP203485U JP203485U JPS61119114U JP S61119114 U JPS61119114 U JP S61119114U JP 203485 U JP203485 U JP 203485U JP 203485 U JP203485 U JP 203485U JP S61119114 U JPS61119114 U JP S61119114U
- Authority
- JP
- Japan
- Prior art keywords
- sliding contact
- contact portion
- utility
- protruding sliding
- cylindrical 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
- 230000003287 optical effect Effects 0.000 claims 5
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Description
第１図はレンズ鏡筒の断面図、第２図はレンズ
鏡筒の要部斜視図、第３図は成形金型の要部断面
図。
１……筒部材、２……保持部材、１ａ１，１ａ
２，１ａ３……突起状摺接部、１ｂ１，１ｂ２，
１ｂ３……案内溝、４……回転部材。
FIG. 1 is a sectional view of a lens barrel, FIG. 2 is a perspective view of a main part of the lens barrel, and FIG. 3 is a sectional view of a main part of a molding die. 1... Cylindrical member, 2... Holding member, 1a 1 , 1a
2 , 1a 3 ... protruding sliding contact portion, 1b 1 , 1b 2 ,
1b 3 ... Guide groove, 4... Rotating member.
Claims (1)
収納する筒部材を有し、前記筒部材の内周に前記
保持部材の外周と摺接する光軸と平行方向に伸び
る突起状摺接部を複数個所設け、更に前記突起状
摺接部に光軸と平行方向に前記保持部材の光軸平
行方向の移動のための案内溝を形成したことを特
徴とするレンズ鏡筒。 (2) 前記筒部材の前記実起状摺接部以外の内周
に反射防止部を施こしたことを特徴とする実用新
案登録請求の範囲第(1)項に記載のレンズ鏡筒。 (3) 前記筒部材の前記突起状摺接部の一端側又
は前記突起状摺接部に沿つて溝を設けたことを特
徴とする実用新案登録請求の範囲第(1)項記載の
レンズ鏡筒。 (4) 前記案内溝を前記突起状摺接部以外に設け
たことを特徴とする実用新案登録請求の範囲第(1
)項乃至第(3)項記載のレンズ鏡筒。 (5) 前記案内溝の両側面の前記突起状摺接面の
片面の巾寸法は前記筒部材の薄肉部の寸法と略等
しくしたことを特徴とする実用新案登録請求の範
囲第(1)項乃至第(3)項記載のレンズ鏡筒。 (6) 前記保持部材の外周面に前記筒部材の突起
状摺接部と摺接する突起状摺接部を有することを
特徴とする実用新案登録請求の範囲第(1)項乃至
第(5)項記載のレンズ鏡筒。 (7) 前記筒部材の案内溝は光軸に対して螺旋状
と成し前記保持部材の突起状摺接部は前記案内溝
の螺旋と略同一のリード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(6)項記載のレ
ンズ鏡筒。[Claims for Utility Model Registration] (1) A cylindrical member that houses a holding member for holding an optical member therein, the inner periphery of the cylindrical member slidingly contacting the outer periphery of the holding member in a direction parallel to the optical axis. A lens characterized in that a plurality of protruding sliding contact portions are provided extending in the direction of the optical axis, and a guide groove for moving the holding member in a direction parallel to the optical axis is formed in the protruding sliding contact portion. lens barrel. (2) The lens barrel according to claim (1), which is a registered utility model, characterized in that an antireflection portion is provided on the inner periphery of the cylindrical member other than the raised sliding contact portion. (3) The lens mirror according to claim (1) of the utility model registration, characterized in that a groove is provided on one end side of the protruding sliding contact portion of the cylindrical member or along the protruding sliding contact portion. Tube. (4) Utility model registration claim No. 1, characterized in that the guide groove is provided in a portion other than the protruding sliding contact portion.
The lens barrel according to items () to (3). (5) Utility model registration claim (1) characterized in that the width dimension of one side of the protruding sliding contact surfaces on both sides of the guide groove is approximately equal to the dimension of the thin wall portion of the cylindrical member. The lens barrel described in item (3). (6) Utility model registration claims (1) to (5) characterized in that the holding member has a protruding sliding contact portion on the outer circumferential surface thereof that makes sliding contact with the protruding sliding contact portion of the cylindrical member. Lens barrel described in section. (7) The guide groove of the cylindrical member has a spiral shape with respect to the optical axis, and the protruding sliding contact portion of the holding member has a lead that is substantially the same as the spiral of the guide groove. The lens barrel described in claim (6) of the utility model registration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP203485U JPH0417923Y2 (en) | 1985-01-11 | 1985-01-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP203485U JPH0417923Y2 (en) | 1985-01-11 | 1985-01-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61119114U true JPS61119114U (en) | 1986-07-28 |
| JPH0417923Y2 JPH0417923Y2 (en) | 1992-04-22 |
Family
ID=30475330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP203485U Expired JPH0417923Y2 (en) | 1985-01-11 | 1985-01-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417923Y2 (en) |
-
1985
- 1985-01-11 JP JP203485U patent/JPH0417923Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0417923Y2 (en) | 1992-04-22 |