NO136434B - - Google Patents
Download PDFInfo
- Publication number
- NO136434B NO136434B NO2078/73A NO207873A NO136434B NO 136434 B NO136434 B NO 136434B NO 2078/73 A NO2078/73 A NO 2078/73A NO 207873 A NO207873 A NO 207873A NO 136434 B NO136434 B NO 136434B
- Authority
- NO
- Norway
- Prior art keywords
- lens
- individual
- biconcave
- curvature
- plane side
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000005499 meniscus Effects 0.000 claims description 4
- 230000003595 spectral effect Effects 0.000 claims description 4
- 239000005304 optical glass Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
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
- G02B9/14—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - +
- G02B9/18—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + only one component having a compound lens
- G02B9/20—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + only one component having a compound lens the rear component having the compound
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
-
- 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)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS409272A CS152944B1 (cs) | 1972-06-13 | 1972-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO136434B true NO136434B (cs) | 1977-05-23 |
| NO136434C NO136434C (no) | 1977-08-31 |
Family
ID=5382905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2078/73A NO136434C (no) | 1972-06-13 | 1973-05-21 | Optisk system for et objektiv. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3864028A (cs) |
| JP (1) | JPS4952635A (cs) |
| AT (1) | AT326385B (cs) |
| CS (1) | CS152944B1 (cs) |
| DE (1) | DE2325489C3 (cs) |
| DK (1) | DK137733B (cs) |
| FI (1) | FI60452C (cs) |
| FR (1) | FR2188177B3 (cs) |
| GB (1) | GB1403471A (cs) |
| IT (1) | IT985429B (cs) |
| NO (1) | NO136434C (cs) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5459933A (en) * | 1977-10-20 | 1979-05-15 | Canon Inc | Photographic lens of rear diaphragm tessar type |
| JPS5664310A (en) * | 1979-10-29 | 1981-06-01 | Canon Inc | Projecting lens |
| TW200641299A (en) * | 2006-08-08 | 2006-12-01 | Camdeor Technology Co Ltd | Infrared laser diffuse apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2346086A (en) * | 1942-06-01 | 1944-04-04 | Eastman Kodak Co | Photographic objective |
-
1972
- 1972-06-13 CS CS409272A patent/CS152944B1/cs unknown
-
1973
- 1973-05-18 GB GB2370573A patent/GB1403471A/en not_active Expired
- 1973-05-19 DE DE2325489A patent/DE2325489C3/de not_active Expired
- 1973-05-21 NO NO2078/73A patent/NO136434C/no unknown
- 1973-06-06 DK DK310373AA patent/DK137733B/da not_active IP Right Cessation
- 1973-06-07 US US367822A patent/US3864028A/en not_active Expired - Lifetime
- 1973-06-07 FI FI1859/73A patent/FI60452C/fi active
- 1973-06-08 AT AT511473A patent/AT326385B/de not_active IP Right Cessation
- 1973-06-12 JP JP48066244A patent/JPS4952635A/ja active Pending
- 1973-06-12 IT IT50708/73A patent/IT985429B/it active
- 1973-06-13 FR FR7321465A patent/FR2188177B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO136434C (no) | 1977-08-31 |
| GB1403471A (en) | 1975-08-28 |
| DK137733B (da) | 1978-04-24 |
| CS152944B1 (cs) | 1974-02-22 |
| FR2188177B3 (cs) | 1976-05-28 |
| ATA511473A (de) | 1975-02-15 |
| US3864028A (en) | 1975-02-04 |
| FI60452B (fi) | 1981-09-30 |
| DE2325489C3 (de) | 1975-10-16 |
| DE2325489A1 (de) | 1974-01-03 |
| DE2325489B2 (de) | 1975-02-27 |
| AT326385B (de) | 1975-12-10 |
| FI60452C (fi) | 1982-01-11 |
| DK137733C (cs) | 1978-10-02 |
| FR2188177A1 (cs) | 1974-01-18 |
| IT985429B (it) | 1974-11-30 |
| JPS4952635A (cs) | 1974-05-22 |
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