JPH0251478U - - Google Patents
Info
- Publication number
- JPH0251478U JPH0251478U JP13040088U JP13040088U JPH0251478U JP H0251478 U JPH0251478 U JP H0251478U JP 13040088 U JP13040088 U JP 13040088U JP 13040088 U JP13040088 U JP 13040088U JP H0251478 U JPH0251478 U JP H0251478U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- cylinder
- frames
- cylinder frames
- lens barrel
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Mounting And Adjusting Of Optical Elements (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案実施例のレンズ鏡筒を用いた投
影装置の分解斜視図、第２図は第１考案の実施例
のレンズ鏡筒を示す分解斜視図、第３図は第１考
案の実施例におけるレンズの固定方法を説明する
図、第４図は第１考案の他の実施例を説明する図
、第５図は第２考案の実施例のレンズ鏡筒を示す
分解斜視図、第６図は第２考案の実施例のレンズ
鏡筒の正面図、第７図は第２考案の他の実施例を
説明する図である。
１，１′…レンズ鏡筒、１１１，１１２…筒枠
、１３…レンズ、１３ｂ…接触片、１３ｃ…レバ
ー、１６…弾性板、１１１ａ…ガイド用突起、１
１１ｂ…長穴。
FIG. 1 is an exploded perspective view of a projection device using a lens barrel according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a lens barrel according to an embodiment of the first invention, and FIG. 4 is a diagram illustrating another embodiment of the first invention; FIG. 5 is an exploded perspective view showing a lens barrel of an embodiment of the second invention; FIG. FIG. 6 is a front view of a lens barrel according to an embodiment of the second invention, and FIG. 7 is a diagram illustrating another embodiment of the second invention. DESCRIPTION OF SYMBOLS 1, 1'... Lens barrel, 11 1 , 11 2 ... Tube frame, 13... Lens, 13b... Contact piece, 13c... Lever, 16... Elastic plate, 111a... Guide protrusion, 1
11b...Long hole.
Claims (1)
した２つの筒枠に、この筒枠の内部で軸方向の予
め決められた位置にレンズを配設するようにした
レンズ鏡筒であつて、 上記筒枠の側面で上記レンズが配設される位置
に円周方向に沿つて長穴を形成するとともに、上
記レンズの側面で上記長穴に対応する位置に突起
状腕部または切欠部を形成し、 上記筒枠の内側面でレンズが配設される位置あ
るいは上記レンズの側面の、いずれか一方に中心
から等距離で接線に対して傾斜する複数の傾斜面
を、また、他方に該傾斜面に接触する接触片を設
け、 上記傾斜面と接触片との係合によつて筒枠の中
心軸とレンズのレンズ光軸とを合わせるようにし
たことを特徴とするレンズ鏡筒。 (2) 円筒形状部材を円筒の軸に沿つて縦割りに
した２つの筒枠に、この筒枠の内部で軸方向の予
め決められた位置にレンズを配設するようにした
レンズ鏡筒であつて、 上記２つの筒枠は、レンズを配設して組み立て
たときに両筒枠間に間隙が生じるように形成され
、該２つの筒枠は上記間隙を狭める方向に働く弾
性力によつて一体に保持されるようにしたもので
あることを特徴とするレンズ鏡筒。[Scope of Claim for Utility Model Registration] (1) A cylindrical member is vertically divided along the axis of the cylinder into two cylinder frames, and a lens is arranged at a predetermined position in the axial direction inside the cylinder frames. In the lens barrel, a long hole is formed along the circumferential direction at a position where the lens is disposed on the side surface of the barrel frame, and a long hole is formed on the side surface of the lens to correspond to the long hole. A plurality of protruding arms or notches are formed at the position, and the plurality of protruding arms or notches are formed on the inner surface of the cylinder frame at the position where the lens is disposed, or on the side surface of the lens at an equal distance from the center and inclined with respect to the tangent line. and a contact piece that contacts the inclined surface on the other side, and the center axis of the cylinder frame and the lens optical axis of the lens are aligned by engagement of the inclined surface and the contact piece. A lens barrel characterized by: (2) A lens barrel in which a cylindrical member is divided vertically along the axis of the cylinder into two cylinder frames, and a lens is arranged at a predetermined position in the axial direction inside the cylinder frames. The two cylinder frames are formed so that a gap is created between the two cylinder frames when the lens is disposed and assembled, and the two cylinder frames are formed by an elastic force acting in the direction of narrowing the gap. What is claimed is: 1. A lens barrel characterized in that the lens barrel is held integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13040088U JPH0251478U (en) | 1988-10-06 | 1988-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13040088U JPH0251478U (en) | 1988-10-06 | 1988-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0251478U true JPH0251478U (en) | 1990-04-11 |
Family
ID=31385532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13040088U Pending JPH0251478U (en) | 1988-10-06 | 1988-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0251478U (en) |
-
1988
- 1988-10-06 JP JP13040088U patent/JPH0251478U/ja active Pending
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