GB583984A - Photographic lens - Google Patents
Photographic lensInfo
- Publication number
- GB583984A GB583984A GB1717644A GB1717644A GB583984A GB 583984 A GB583984 A GB 583984A GB 1717644 A GB1717644 A GB 1717644A GB 1717644 A GB1717644 A GB 1717644A GB 583984 A GB583984 A GB 583984A
- Authority
- GB
- United Kingdom
- Prior art keywords
- component
- collective
- refractive index
- lens
- index greater
- 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
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
583,984. Photographic lenses. SCOPHONY, Ltd., and LEE, H. W. Sept. 8, 1944, No. 17176. [Class 97 (i)] In a lens of the type comprising a simple dispersive double - concave component 2 between two collective components of which that facing the front is simple and the other comprises a dispersive element 3 cemented to a collective element 4, the component 1 or the collective element 4 or both are of vitreous or crystalline material having a mean refractive index greater than 1.70 and the component 2 has a refractive index greater than 1.63. The component 1 is meniscus, the power of its shallower side being not less than 10 per cent of that of the complete lens. Specifications 462,304 and 534,680, [both in Group XXIII], are referred to. Data are given.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1717644A GB583984A (en) | 1944-09-08 | 1944-09-08 | Photographic lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1717644A GB583984A (en) | 1944-09-08 | 1944-09-08 | Photographic lens |
Publications (1)
Publication Number | Publication Date |
---|---|
GB583984A true GB583984A (en) | 1947-01-03 |
Family
ID=10090593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1717644A Expired GB583984A (en) | 1944-09-08 | 1944-09-08 | Photographic lens |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB583984A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732762A (en) * | 1951-06-12 | 1956-01-31 | Wide aperture photographic objective comprising | |
US2764063A (en) * | 1953-09-23 | 1956-09-25 | Zeiss Carl | Three element photographic objective |
DE969674C (en) * | 1951-06-10 | 1958-07-03 | Agfa Ag | Photographic lens |
-
1944
- 1944-09-08 GB GB1717644A patent/GB583984A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE969674C (en) * | 1951-06-10 | 1958-07-03 | Agfa Ag | Photographic lens |
US2732762A (en) * | 1951-06-12 | 1956-01-31 | Wide aperture photographic objective comprising | |
US2764063A (en) * | 1953-09-23 | 1956-09-25 | Zeiss Carl | Three element photographic objective |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB583984A (en) | Photographic lens | |
GB538653A (en) | Improvements in or relating to optical objectives | |
GB522651A (en) | Improvements in or relating to optical objectives | |
GB807520A (en) | Improved glasses | |
GB532950A (en) | Improvements in or relating to optical objectives | |
GB696167A (en) | Four lens objective | |
GB561156A (en) | Improvements in or relating to optical objectives | |
GB602813A (en) | Improvements in or relating to photographic objectives | |
GB1095767A (en) | Wide angle lens | |
GB595961A (en) | Improved high aperture photographic objective | |
GB470522A (en) | Improvements in lenses | |
GB769241A (en) | Improvements in and relating to asymmetrical photographic objectives | |
GB523446A (en) | Improvements in or relating to optical objectives | |
GB620635A (en) | Improvements in or relating to photographic objectives | |
GB559203A (en) | Improvements in or relating to telephoto objectives | |
GB1034458A (en) | Photographic objective | |
GB559228A (en) | Improvements in or relating to telephoto objectives | |
GB714565A (en) | Photographic objective | |
GB564815A (en) | Improvements in or relating to optical objectives | |
GB563740A (en) | Improvements in or relating to photographic objectives | |
GB550623A (en) | Improvements in or relating to optical objectives | |
GB559699A (en) | Improvements in or relating to optical objectives | |
GB568319A (en) | Improvements in or relating to optical objectives | |
GB560609A (en) | Improvements in or relating to optical objectives | |
GB620634A (en) | Improvements in or relating to high aperture objectives |