DK238075A - Projektionsoptik - Google Patents
ProjektionsoptikInfo
- Publication number
- DK238075A DK238075A DK238075A DK238075A DK238075A DK 238075 A DK238075 A DK 238075A DK 238075 A DK238075 A DK 238075A DK 238075 A DK238075 A DK 238075A DK 238075 A DK238075 A DK 238075A
- Authority
- DK
- Denmark
- Prior art keywords
- projection optics
- optics
- projection
- Prior art date
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
- 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 + - +
- G02B9/16—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 + - + all the components being simple
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
-
- 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 -
- G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Medicines Containing Plant Substances (AREA)
- External Artificial Organs (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7407134A SE382262B (sv) | 1974-05-29 | 1974-05-29 | Projektionsoptik. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK238075A true DK238075A (da) | 1975-11-30 |
Family
ID=20321270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK238075A DK238075A (da) | 1974-05-29 | 1975-05-28 | Projektionsoptik |
Country Status (21)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4311366A (en) * | 1978-03-01 | 1982-01-19 | J. H. Dallmeyer Limited | Image focusing system |
| US4380374A (en) * | 1981-04-16 | 1983-04-19 | Minnesota Mining & Manufacturing Company | Variable focal length projection lens for use on overhead projectors |
| JP2691566B2 (ja) * | 1988-06-14 | 1997-12-17 | 旭光学工業株式会社 | 拡大投影レンズ |
| JP2954217B2 (ja) * | 1987-12-09 | 1999-09-27 | 株式会社日立製作所 | 投写用レンズ |
-
1974
- 1974-05-29 SE SE7407134A patent/SE382262B/xx not_active IP Right Cessation
-
1975
- 1975-04-24 NO NO751480A patent/NO139872C/no unknown
- 1975-04-25 GB GB1726775A patent/GB1474847A/en not_active Expired
- 1975-04-25 ES ES436963A patent/ES436963A1/es not_active Expired
- 1975-04-30 IT IT22916/75A patent/IT1037780B/it active
- 1975-05-01 CA CA226,075A patent/CA1050314A/en not_active Expired
- 1975-05-05 DE DE19752519991 patent/DE2519991A1/de not_active Withdrawn
- 1975-05-15 FR FR7515205A patent/FR2273290B1/fr not_active Expired
- 1975-05-26 AT AT398475A patent/AT351828B/de not_active IP Right Cessation
- 1975-05-26 FI FI751515A patent/FI751515A7/fi not_active Application Discontinuation
- 1975-05-26 BE BE156716A patent/BE829494A/xx unknown
- 1975-05-26 SU SU752136683A patent/SU625640A3/ru active
- 1975-05-27 HU HU75LI276A patent/HU175781B/hu unknown
- 1975-05-27 DD DD186283A patent/DD120942A5/xx unknown
- 1975-05-27 BR BR4278/75A patent/BR7503348A/pt unknown
- 1975-05-27 CH CH679275A patent/CH585910A5/xx not_active IP Right Cessation
- 1975-05-28 JP JP50063946A patent/JPS513228A/ja active Pending
- 1975-05-28 PL PL1975180786A patent/PL104910B1/pl unknown
- 1975-05-28 CS CS753750A patent/CS192543B2/cs unknown
- 1975-05-28 NL NL7506296A patent/NL7506296A/xx not_active Application Discontinuation
- 1975-05-28 DK DK238075A patent/DK238075A/da unknown
Also Published As
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