JPH0164630U

JPH0164630U -

Info

Publication number: JPH0164630U
Application number: JP1987159406U
Authority: JP
Priority date: 1987-10-20
Filing date: 1987-10-20
Publication date: 1989-04-25

Description

[Brief explanation of the drawing]

第１図は本考案に係るフードを用いた撮影状態
を示す第１実施例の長手方向手方向断面図、第２
図は第１図のフード付きレンズ鏡筒をレンズケー
スに収納した状態を示す長手方向断面図、第３図
及び第４図は本考案に係るフードを用いる別々の
撮影状態を示す第２実施例の長手方向手断面図、
第５図はフードの分解斜視図である。第６図は従
来のフードによる撮影時の状態を示す長手方向断
面図、第７図は第６図のフードを逆向きに装着し
た場合の長手方向断面図、第８図は第７図の状態
でレンズケースに収納した場合の長手方向断面図
である。主要部分の符号の説明、１０……フード、２０
……マウント環（第１の筒状部材）、３０……フ
ード環（第２の筒状部材）、２６ａ……第１の被
当接面、２６ｂ……第２の被当接面、３４ａ……
第２の当接面、３８……第１の当接面、２４……
ばね。 FIG. 1 is a sectional view in the longitudinal direction of the first embodiment showing the photographing state using the hood according to the present invention;
The figure is a longitudinal cross-sectional view showing the hooded lens barrel of Fig. 1 housed in a lens case, and Figs. 3 and 4 are a second embodiment showing different photographing states using the hood according to the present invention. Longitudinal cross-sectional view of
FIG. 5 is an exploded perspective view of the hood. Fig. 6 is a longitudinal cross-sectional view showing the state when photographing with a conventional hood, Fig. 7 is a longitudinal cross-sectional view when the hood of Fig. 6 is attached in the opposite direction, and Fig. 8 is the state of Fig. 7. FIG. 3 is a longitudinal cross-sectional view of the camera when it is housed in a lens case. Explanation of symbols of main parts, 10...Hood, 20
...Mount ring (first cylindrical member), 30...Hood ring (second cylindrical member), 26a...First abutted surface, 26b...Second abutted surface, 34a ……
Second contact surface, 38... First contact surface, 24...
Spring.

Claims

[Claims for Utility Model Registration] 1. A photographic lens hood that is attached to a photographic lens of a camera, which can be attached to the leading edge of the photographic lens at one end, and has first and second hoods near the other end. a first cylindrical member having an abutted surface; fitted so as to be movable relative to the first cylindrical member in the optical axis direction;
a second cylindrical member having a first abutment surface that can be abutted by the first abutment surface and a second abutment surface that can abut the first abutment surface; ; a spring member disposed between the first cylindrical member and the second cylindrical member; when a photographing lens with a hood is placed with the second cylindrical member facing downward; Due to the weight of the photographing lens and the first cylindrical member, the second cylindrical member is moved into the first cylindrical member until the first abutted surface comes into contact with the first contact surface. In other states, the second cylindrical member is moved away from the first cylindrical member in the optical axis direction until the second abutted surface comes into contact with the second abutting surface. A hood for a photographic lens, comprising: a spring member having a biasing force sufficient to cause the hood to be in an extended state. 2 The first cylindrical member is an inner cylinder, and the second cylindrical member is an inner cylinder.
The hood for a photographic lens according to claim 1, wherein the cylindrical member is an outer cylinder. 3. The second abutted surface of the first cylindrical member is composed of two types of abutted surfaces having different positions in the optical axis direction and circumferential direction, and the second cylindrical member is The second abutting of the second cylindrical member on any of the types of abutted surfaces by moving the first cylindrical member in the optical axis direction and rotating in the circumferential direction. A hood for a photographic lens according to claim 1, which has a surface that selectively abuts.