DE176810C - - Google Patents
Info
- Publication number
- DE176810C DE176810C DENDAT176810D DE176810DA DE176810C DE 176810 C DE176810 C DE 176810C DE NDAT176810 D DENDAT176810 D DE NDAT176810D DE 176810D A DE176810D A DE 176810DA DE 176810 C DE176810 C DE 176810C
- Authority
- DE
- Germany
- Prior art keywords
- speed
- slot
- numerical values
- spring
- spring tension
- 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.)
- Active
Links
- 238000007689 inspection Methods 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/28—Roller blind or flexible plate
- G03B9/32—Double blind
- G03B9/34—Double blind with adjustable slot; with mechanism controlling relative movement of blinds to form slot
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Displays For Variable Information Using Movable Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE176810C true DE176810C (https=) |
Family
ID=441350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT176810D Active DE176810C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE176810C (https=) |
-
0
- DE DENDAT176810D patent/DE176810C/de active Active
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