JPS6451918U - - Google Patents
Info
- Publication number
- JPS6451918U JPS6451918U JP14782187U JP14782187U JPS6451918U JP S6451918 U JPS6451918 U JP S6451918U JP 14782187 U JP14782187 U JP 14782187U JP 14782187 U JP14782187 U JP 14782187U JP S6451918 U JPS6451918 U JP S6451918U
- Authority
- JP
- Japan
- Prior art keywords
- light
- aperture blade
- shielding aperture
- cam groove
- rotating ring
- 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 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Diaphragms For Cameras (AREA)
Description
第１図は本考案の一実施例を示した断面図、第
２図は第１図の部品の分解斜視図、第３図は第２
図の回転リングを裏側からみた斜視図、第４図は
第１図の一部を拡大して示した断面図、第５図は
第１図の遮光用絞り羽根を固定カム溝板に組み込
む方法の１つの例の説明図、第６図は同じくもう
１つの例の説明図、第７図は従来の技術の一例を
示した断面図、第８図は第７図の部品の分解斜視
図である。
１……回転リング、１Ｇ……突起部、２……固
定カム溝板、３……遮光用絞り羽根、４……カム
溝。
Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the parts shown in Fig. 1, and Fig. 3 is a cross-sectional view showing an embodiment of the present invention.
Figure 4 is an enlarged cross-sectional view of a portion of Figure 1, and Figure 5 is a method of incorporating the light-shielding aperture blades shown in Figure 1 into the fixed cam groove plate. FIG. 6 is an explanatory diagram of another example, FIG. 7 is a sectional view showing an example of the conventional technology, and FIG. 8 is an exploded perspective view of the parts in FIG. 7. be. 1... Rotating ring, 1G... Projection, 2... Fixed cam groove plate, 3... Light shielding aperture blade, 4... Cam groove.
Claims (1)
するカム溝を有する固定カム溝板と、前記遮光用
絞り羽根を駆動する回転リングとを備えた撮影光
学系の光量を調節する装置において、前記遮光用
絞り羽根が該固定カム溝板と該回転リングの間に
配置され、かつ、該回転リングには、該遮光用絞
り羽根に対する空間を形成するように設けられた
突起部を有することを特徴とする露光量調節装置
。 In the device for adjusting the amount of light of a photographing optical system, the apparatus includes a light-shielding aperture blade, a fixed cam groove plate having a cam groove for guiding the light-shielding aperture blade, and a rotating ring that drives the light-shielding aperture blade. A light shielding aperture blade is disposed between the fixed cam groove plate and the rotating ring, and the rotating ring has a protrusion provided to form a space for the light shielding aperture blade. Exposure adjustment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14782187U JPS6451918U (en) | 1987-09-28 | 1987-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14782187U JPS6451918U (en) | 1987-09-28 | 1987-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6451918U true JPS6451918U (en) | 1989-03-30 |
Family
ID=31418579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14782187U Pending JPS6451918U (en) | 1987-09-28 | 1987-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6451918U (en) |
-
1987
- 1987-09-28 JP JP14782187U patent/JPS6451918U/ja active Pending
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