JPH0320319U - - Google Patents
Info
- Publication number
- JPH0320319U JPH0320319U JP8021989U JP8021989U JPH0320319U JP H0320319 U JPH0320319 U JP H0320319U JP 8021989 U JP8021989 U JP 8021989U JP 8021989 U JP8021989 U JP 8021989U JP H0320319 U JPH0320319 U JP H0320319U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- driving
- adjustment mechanism
- light
- focus adjustment
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Focusing (AREA)
- Diaphragms For Cameras (AREA)
Description
第１図は本考案の１実施例に係るレンズ駆動機
構とシヤツタ機構の分解斜視図、第２図は第１図
における機構中の駆動リング４と羽根駆動レバー
１０の関係を示す平面図、第３図は本考案の機構
を使用した焦点調節を原理的に示す図、第４図は
従来の該種ゾーンフオーカス式カメラの焦点調節
を原理的に示す図。
１……雄ヘリコイド、２……雌ヘリコイド、３
……モータ、３ａ……ピニオン、４……駆動リン
グ、４ａ……ラツク、４ｃ……係合突片、６，７
……シヤツタ羽根、１０……羽根駆動レバー、１
０ｄ……カム縁。
FIG. 1 is an exploded perspective view of a lens drive mechanism and shutter mechanism according to an embodiment of the present invention, FIG. 2 is a plan view showing the relationship between the drive ring 4 and the blade drive lever 10 in the mechanism in FIG. FIG. 3 is a diagram showing the principle of focus adjustment using the mechanism of the present invention, and FIG. 4 is a diagram showing the principle of focus adjustment of the conventional zone focus type camera. 1...male helicoid, 2...female helicoid, 3
...Motor, 3a...Pinion, 4...Driving ring, 4a...Rack, 4c...Engaging protrusion, 6,7
...Shutter blade, 10...Blade drive lever, 1
0d...cam edge.
Claims (1)
根部材と連結され該羽根部材を開閉駆動する羽根
駆動部材とを有する遮光羽根装置において、 複数分割された被写体距離ゾーンに対応して段
階的に駆動されるゾーンフオーカス式の焦点調整
機構を具備するとともに、 該焦点調整機構と前記羽根駆動部材とを相互に
連繋せしめ、該焦点調節機構が所定の被写体距離
ゾーンに位置する時に前記羽根駆動部材の開口方
向への作動範囲を全開位置以前で規制する様にな
したことを特徴とする遮光羽根装置。 (2) 露出用開口径を調整する羽根部材と、該羽
根部材と連結され該羽根部材を開閉駆動する羽根
駆動部材とを有する遮光羽根装置において、 複数分割された被写体距離ゾーンに対応して段
階的に駆動されるゾーンフオーカス式の焦点調整
機構を具備するとともに、 該焦点調整機構の作動部材に、該作動部材が所
定の被写体距離に対応した箇所に位置する時に前
記羽根駆動部材の全開方向への作動径路中に進入
する係合部材を形成し、該羽根駆動部材の開口方
向への作動範囲を全開位置以前で規制する様にな
したことを特徴とする遮光羽根装置。[Scope of Claim for Utility Model Registration] (1) A light-shielding blade device having a blade member for adjusting the exposure opening diameter and a blade driving member connected to the blade member and driving the blade member to open and close, which is divided into multiple parts. A zone focus type focus adjustment mechanism is provided that is driven stepwise in accordance with the subject distance zone, and the focus adjustment mechanism and the blade driving member are interconnected, and the focus adjustment mechanism is configured to move when a predetermined subject is selected. A light-shielding blade device characterized in that, when located in a distance zone, the operating range of the blade driving member in the opening direction is restricted before a fully open position. (2) In a light-shielding blade device having a blade member for adjusting the exposure aperture diameter and a blade driving member connected to the blade member and driving the blade member to open and close, the blade member may be adjusted in stages corresponding to a plurality of divided subject distance zones. and a zone focus type focus adjustment mechanism that is driven automatically, and an actuating member of the focus adjusting mechanism is provided with a fully open direction of the blade driving member when the actuating member is located at a position corresponding to a predetermined subject distance. 1. A light-shielding blade device characterized in that an engaging member is formed that enters into an operating path of the blade drive member, and the operating range of the blade drive member in the opening direction is restricted before a fully open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989080219U JP2533640Y2 (en) | 1989-07-06 | 1989-07-06 | Shading blade device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989080219U JP2533640Y2 (en) | 1989-07-06 | 1989-07-06 | Shading blade device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0320319U true JPH0320319U (en) | 1991-02-27 |
| JP2533640Y2 JP2533640Y2 (en) | 1997-04-23 |
Family
ID=31625079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989080219U Expired - Lifetime JP2533640Y2 (en) | 1989-07-06 | 1989-07-06 | Shading blade device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533640Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02254431A (en) * | 1989-03-29 | 1990-10-15 | Copal Co Ltd | Camera with aperture diameter regulating device |
-
1989
- 1989-07-06 JP JP1989080219U patent/JP2533640Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02254431A (en) * | 1989-03-29 | 1990-10-15 | Copal Co Ltd | Camera with aperture diameter regulating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2533640Y2 (en) | 1997-04-23 |
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