GB190827433A - Improvements in Diaphragmatic Shutters having Rectangular or Square Apertures. - Google Patents
Improvements in Diaphragmatic Shutters having Rectangular or Square Apertures.Info
- Publication number
- GB190827433A GB190827433A GB190827433DA GB190827433A GB 190827433 A GB190827433 A GB 190827433A GB 190827433D A GB190827433D A GB 190827433DA GB 190827433 A GB190827433 A GB 190827433A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leaves
- rectangular
- diaphragmatic
- shutters
- square apertures
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 abstract 2
Landscapes
- Mechanical Light Control Or Optical Switches (AREA)
- Radiation-Therapy Devices (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
27,433. Siemens Bros. & Co., and Ireland, H. W. F. Dec. 17. Optical instruments. -The overlapping leaves 3 . . . 6, that adjust the rectangular apertures of diaphragms for optical purposes, work in independent pairs, movement being effected by means of two independent superposed but separated disks having spiral slots 11 ... 14 engaging pins 7 ... 10 on the leaves. Guides 17 ... 24 control the movements of the leaves, being arranged in two different planes for the different pairs.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB190827433T | 1908-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB190827433A true GB190827433A (en) | 1909-11-04 |
Family
ID=32553364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB190827433D Expired GB190827433A (en) | 1908-12-17 | 1908-12-17 | Improvements in Diaphragmatic Shutters having Rectangular or Square Apertures. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB190827433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132576A (en) * | 1960-05-05 | 1964-05-12 | Schneider Co Optische Werke | Iris diaphragm |
-
1908
- 1908-12-17 GB GB190827433D patent/GB190827433A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3132576A (en) * | 1960-05-05 | 1964-05-12 | Schneider Co Optische Werke | Iris diaphragm |
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