GB564816A - Improvements in or relating to optical objectives - Google Patents
Improvements in or relating to optical objectivesInfo
- Publication number
- GB564816A GB564816A GB504243A GB504243A GB564816A GB 564816 A GB564816 A GB 564816A GB 504243 A GB504243 A GB 504243A GB 504243 A GB504243 A GB 504243A GB 564816 A GB564816 A GB 564816A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- optical objectives
- elements
- objectives
- optical
- 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
Abstract
564,816. Optical objectives. KAPELLA, Ltd., and WARMISHAM, A. March 29,1943, No. 5042. Addition to 522,651. Drawings to Specification. [Class 97 (i)] The subject-matter is identical with that of Specification 564,815 except that the AbbÚ V numbers of the rear elements of the third and fourth components are between 50 and 60. Complete data for one example in which the elements are made of #-magnesium oxide crystal are set out.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB504243A GB564816A (en) | 1943-03-29 | 1943-03-29 | Improvements in or relating to optical objectives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB504243A GB564816A (en) | 1943-03-29 | 1943-03-29 | Improvements in or relating to optical objectives |
Publications (1)
Publication Number | Publication Date |
---|---|
GB564816A true GB564816A (en) | 1944-10-13 |
Family
ID=9788651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB504243A Expired GB564816A (en) | 1943-03-29 | 1943-03-29 | Improvements in or relating to optical objectives |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB564816A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4212517A (en) * | 1977-03-10 | 1980-07-15 | Olympus Optical Co., Ltd. | Photographic lens system |
-
1943
- 1943-03-29 GB GB504243A patent/GB564816A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4212517A (en) * | 1977-03-10 | 1980-07-15 | Olympus Optical Co., Ltd. | Photographic lens system |
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