NL7506296A - PROJECTION LENS SYSTEM. - Google Patents
PROJECTION LENS SYSTEM.Info
- Publication number
- NL7506296A NL7506296A NL7506296A NL7506296A NL7506296A NL 7506296 A NL7506296 A NL 7506296A NL 7506296 A NL7506296 A NL 7506296A NL 7506296 A NL7506296 A NL 7506296A NL 7506296 A NL7506296 A NL 7506296A
- Authority
- NL
- Netherlands
- Prior art keywords
- lens system
- projection lens
- projection
- lens
- 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)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicines Containing Plant Substances (AREA)
- External Artificial Organs (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7407134A SE382262B (en) | 1974-05-29 | 1974-05-29 | PROJECTION OPTICS. |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7506296A true NL7506296A (en) | 1975-12-02 |
Family
ID=20321270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7506296A NL7506296A (en) | 1974-05-29 | 1975-05-28 | PROJECTION LENS SYSTEM. |
Country Status (21)
Country | Link |
---|---|
JP (1) | JPS513228A (en) |
AT (1) | AT351828B (en) |
BE (1) | BE829494A (en) |
BR (1) | BR7503348A (en) |
CA (1) | CA1050314A (en) |
CH (1) | CH585910A5 (en) |
CS (1) | CS192543B2 (en) |
DD (1) | DD120942A5 (en) |
DE (1) | DE2519991A1 (en) |
DK (1) | DK238075A (en) |
ES (1) | ES436963A1 (en) |
FI (1) | FI751515A (en) |
FR (1) | FR2273290B1 (en) |
GB (1) | GB1474847A (en) |
HU (1) | HU175781B (en) |
IT (1) | IT1037780B (en) |
NL (1) | NL7506296A (en) |
NO (1) | NO139872C (en) |
PL (1) | PL104910B1 (en) |
SE (1) | SE382262B (en) |
SU (1) | SU625640A3 (en) |
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 (en) * | 1988-06-14 | 1997-12-17 | 旭光学工業株式会社 | Magnifying projection lens |
JP2954217B2 (en) * | 1987-12-09 | 1999-09-27 | 株式会社日立製作所 | Projection lens |
-
1974
- 1974-05-29 SE SE7407134A patent/SE382262B/en not_active IP Right Cessation
-
1975
- 1975-04-24 NO NO751480A patent/NO139872C/en unknown
- 1975-04-25 GB GB1726775A patent/GB1474847A/en not_active Expired
- 1975-04-25 ES ES436963A patent/ES436963A1/en not_active Expired
- 1975-04-30 IT IT22916/75A patent/IT1037780B/en active
- 1975-05-01 CA CA226,075A patent/CA1050314A/en not_active Expired
- 1975-05-05 DE DE19752519991 patent/DE2519991A1/en not_active Withdrawn
- 1975-05-15 FR FR7515205A patent/FR2273290B1/fr not_active Expired
- 1975-05-26 AT AT398475A patent/AT351828B/en not_active IP Right Cessation
- 1975-05-26 SU SU752136683A patent/SU625640A3/en active
- 1975-05-26 BE BE156716A patent/BE829494A/en unknown
- 1975-05-26 FI FI751515A patent/FI751515A/fi not_active Application Discontinuation
- 1975-05-27 HU HU75LI276A patent/HU175781B/en unknown
- 1975-05-27 CH CH679275A patent/CH585910A5/xx not_active IP Right Cessation
- 1975-05-27 DD DD186283A patent/DD120942A5/xx unknown
- 1975-05-27 BR BR4278/75A patent/BR7503348A/en unknown
- 1975-05-28 NL NL7506296A patent/NL7506296A/en not_active Application Discontinuation
- 1975-05-28 JP JP50063946A patent/JPS513228A/ja active Pending
- 1975-05-28 DK DK238075A patent/DK238075A/en unknown
- 1975-05-28 PL PL1975180786A patent/PL104910B1/en unknown
- 1975-05-28 CS CS753750A patent/CS192543B2/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO139872B (en) | 1979-02-12 |
IT1037780B (en) | 1979-11-20 |
CA1050314A (en) | 1979-03-13 |
AT351828B (en) | 1979-08-10 |
FR2273290A1 (en) | 1975-12-26 |
BR7503348A (en) | 1976-04-27 |
SE382262B (en) | 1976-01-19 |
FR2273290B1 (en) | 1980-07-11 |
FI751515A (en) | 1975-11-30 |
SU625640A3 (en) | 1978-09-25 |
SE7407134L (en) | 1975-12-01 |
ES436963A1 (en) | 1976-12-01 |
CS192543B2 (en) | 1979-08-31 |
NO139872C (en) | 1979-05-23 |
BE829494A (en) | 1975-09-15 |
DK238075A (en) | 1975-11-30 |
DE2519991A1 (en) | 1975-12-18 |
ATA398475A (en) | 1979-01-15 |
CH585910A5 (en) | 1977-03-15 |
PL104910B1 (en) | 1979-09-29 |
DD120942A5 (en) | 1976-07-05 |
HU175781B (en) | 1980-10-28 |
GB1474847A (en) | 1977-05-25 |
NO751480L (en) | 1975-12-02 |
JPS513228A (en) | 1976-01-12 |
AU8129275A (en) | 1976-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |