IT516249A - - Google Patents
Info
- Publication number
- IT516249A IT516249A IT516249DA IT516249A IT 516249 A IT516249 A IT 516249A IT 516249D A IT516249D A IT 516249DA IT 516249 A IT516249 A IT 516249A
- Authority
- IT
- Italy
Links
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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/04—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/005—Diaphragms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
- Spectrometry And Color Measurement (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA18057A DE1008017B (de) | 1953-05-21 | 1953-05-21 | Blendenvorrichtung fuer Fotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT516249A true IT516249A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=6924056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT516249D IT516249A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1953-05-21 |
Country Status (7)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111846954A (zh) * | 2020-09-02 | 2020-10-30 | 钱丹 | 一种变距吸料机构 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE608427C (de) * | 1935-01-23 | Gauthier Gmbh A | Objektivverschluss mit Belichtungsmesser | |
| DE610294C (de) * | 1935-03-07 | Gauthier Gmbh A | Photographischer Objektivverschluss mit Belichtungsmesser | |
| DE582033C (de) * | 1929-06-09 | 1933-08-07 | Gauthier Gmbh A | Photographischer Objektivverschluss mit Belichtungsmesser |
| DE704313C (de) * | 1935-09-01 | 1941-03-27 | Metrawatt Akt Ges | Lichtelektrischer Belichtungsmesser mit schwenkbarer Messbereichblende |
| DE702924C (de) * | 1938-07-24 | 1941-02-25 | Fritz Reich Dipl Ing | Optischer Belichtungsmesser an photographischen Kameras |
| DE852653C (de) * | 1949-09-24 | 1952-10-16 | Egon Fischer | Vorsatzgeraet fuer photographische oder kinematographische Kameras, vorzugsweise fuer solche mit Sucherobjektiv |
-
0
- IT IT516249D patent/IT516249A/it unknown
- NL NLAANVRAGE7510373,A patent/NL186314B/xx unknown
-
1953
- 1953-05-21 DE DEA18057A patent/DE1008017B/de active Pending
-
1954
- 1954-01-20 GB GB176354A patent/GB783607A/en not_active Expired
- 1954-04-21 CH CH325521D patent/CH325521A/de unknown
- 1954-05-14 AT AT183976D patent/AT183976B/de active
- 1954-05-17 FR FR1106713D patent/FR1106713A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1106713A (fr) | 1955-12-22 |
| GB783607A (en) | 1957-09-25 |
| CH325521A (de) | 1957-11-15 |
| NL186314B (nl) | |
| AT183976B (de) | 1955-12-10 |
| DE1008017B (de) | 1957-05-09 |