GB188621A - Improvements in photographic lenses - Google Patents
Improvements in photographic lensesInfo
- Publication number
- GB188621A GB188621A GB1834122A GB1834122A GB188621A GB 188621 A GB188621 A GB 188621A GB 1834122 A GB1834122 A GB 1834122A GB 1834122 A GB1834122 A GB 1834122A GB 188621 A GB188621 A GB 188621A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photographic lenses
- photographic
- lenses
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1834122A GB188621A (en) | 1922-07-04 | 1922-07-04 | Improvements in photographic lenses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1834122A GB188621A (en) | 1922-07-04 | 1922-07-04 | Improvements in photographic lenses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB188621A true GB188621A (en) | 1922-11-16 |
Family
ID=10110792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1834122A Expired GB188621A (en) | 1922-07-04 | 1922-07-04 | Improvements in photographic lenses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB188621A (en) |
-
1922
- 1922-07-04 GB GB1834122A patent/GB188621A/en not_active Expired
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