FR2369580A1 - Filtre chromatique soustractif sous forme de reseau de diffraction a traits serres - Google Patents
Filtre chromatique soustractif sous forme de reseau de diffraction a traits serresInfo
- Publication number
- FR2369580A1 FR2369580A1 FR7731970A FR7731970A FR2369580A1 FR 2369580 A1 FR2369580 A1 FR 2369580A1 FR 7731970 A FR7731970 A FR 7731970A FR 7731970 A FR7731970 A FR 7731970A FR 2369580 A1 FR2369580 A1 FR 2369580A1
- Authority
- FR
- France
- Prior art keywords
- subtractive
- diffraction
- periods
- green
- account
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/203—Filters having holographic or diffractive elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1809—Diffraction gratings with pitch less than or comparable to the wavelength
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
- G02B5/1871—Transmissive phase gratings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
L'invention concerne les filtres chromatiques soustractifs sous forme de réseaux de diffraction à profil en rainures rectangulaire formant des traits serrés (périodes de 2 mu ou moins). Par résolution numérique des équations de Maxwell assorties de conditions aux limites appropriées à la surface du réseau, on calcule les paramètres du réseau qui conduisent à de bonnes caractéristiques chromatiques pour la diffraction à l'ordre zéro. Les couleurs obtenues sont les couleurs primaires soustractives (pourpre, jaune, vert-bleu) et le vert. On tient compte non seulement des nuances de teintes, mais aussi de la brillance et de la saturation pour délimiter des régions paramétriques satisfaisantes (200, 202, 204, 206 et 208). Les réseaux à traits serrés (périodes de 2 mu ou moins) permettent une meilleure séparation géométrique entre l'ordre zéro recherché et les ordres supérieurs de diffraction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB44394/76A GB1589766A (en) | 1976-10-26 | 1976-10-26 | Fineline diffractive subtractive colour filters |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2369580A1 true FR2369580A1 (fr) | 1978-05-26 |
FR2369580B1 FR2369580B1 (fr) | 1980-06-20 |
Family
ID=10433095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7731970A Granted FR2369580A1 (fr) | 1976-10-26 | 1977-10-24 | Filtre chromatique soustractif sous forme de reseau de diffraction a traits serres |
Country Status (11)
Country | Link |
---|---|
US (1) | US4130347A (fr) |
JP (1) | JPS53146650A (fr) |
AU (1) | AU510962B2 (fr) |
BE (1) | BE860047A (fr) |
CA (1) | CA1080524A (fr) |
CH (1) | CH626178A5 (fr) |
DE (1) | DE2748064C3 (fr) |
FR (1) | FR2369580A1 (fr) |
GB (1) | GB1589766A (fr) |
NL (1) | NL7711688A (fr) |
SE (1) | SE442682B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509873A1 (fr) * | 1981-07-20 | 1983-01-21 | Rca Corp | Filtre chromatique soustractif par diffraction sensible a l'angle d'incidence d'une lumiere polychromatique, procede d'utilisation et article protege des contrefacons par ce filtre |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2657246C2 (de) * | 1976-12-17 | 1978-09-28 | Hoechst Ag, 6000 Frankfurt | Original eines Informationsträgers, Verfahren zum Herstellen des Originals, Verfahren zum Herstellen einer Matrize zum Prägen des Originals sowie Informa tionsträger, der mit der Matrize hergestellt ist |
US4251137A (en) * | 1977-09-28 | 1981-02-17 | Rca Corporation | Tunable diffractive subtractive filter |
US4372649A (en) * | 1978-05-22 | 1983-02-08 | Minnesota Mining And Manufacturing Company | Extended area diffractive subtractive color filters |
US4255019A (en) * | 1979-04-09 | 1981-03-10 | Rca Corporation | Diffractive color filter |
US4255514A (en) * | 1979-04-27 | 1981-03-10 | Rca Corporation | Method for fabricating a diffractive subtractive filter embossing master |
US4506949A (en) * | 1983-05-27 | 1985-03-26 | Rca Corporation | Diffractive color separation filter |
US4979803A (en) * | 1989-02-02 | 1990-12-25 | Eastman Kodak Company | Color filter array for area image sensors |
US5600486A (en) * | 1995-01-30 | 1997-02-04 | Lockheed Missiles And Space Company, Inc. | Color separation microlens |
US6236508B1 (en) | 1999-03-03 | 2001-05-22 | The Boeing Company | Multicolor detector and focal plane array using diffractive lenses |
JP2004109417A (ja) * | 2002-09-18 | 2004-04-08 | Dainippon Printing Co Ltd | 光回折構造の製造方法、複製版材、及び媒体 |
EP1747099B2 (fr) † | 2004-04-30 | 2017-09-20 | De La Rue International Limited | Reseaux de microlentilles et de micro-images sur des substrats de securite transparents |
TWI649586B (zh) * | 2017-07-20 | 2019-02-01 | Benq Materials Corporation | 光重導向膜及其製造方法 |
US10642057B2 (en) * | 2017-07-20 | 2020-05-05 | Benq Materials Corporation | Light redirecting film and method for manufacturing the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3957354A (en) * | 1975-02-03 | 1976-05-18 | Rca Corporation | Diffractive subtractive color filtering technique |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2769111A (en) * | 1951-07-25 | 1956-10-30 | Philco Corp | Optical system |
JPS5222209B2 (fr) * | 1972-06-23 | 1977-06-16 | ||
JPS5742849B2 (fr) * | 1974-06-05 | 1982-09-10 | ||
US4057326A (en) * | 1976-05-27 | 1977-11-08 | Rca Corporation | Simplified and improved diffractive subtractive color filtering technique |
GB1538342A (en) * | 1976-01-19 | 1979-01-17 | Rca Corp | Structure and recording for diffractive relief images for zero-order read-out in black-and-white |
GB1537703A (en) * | 1976-01-27 | 1979-01-04 | Rca Corp | Fabrication of rectangular relief profiles in photoresist |
-
1976
- 1976-10-26 GB GB44394/76A patent/GB1589766A/en not_active Expired
-
1977
- 1977-10-11 US US05/841,057 patent/US4130347A/en not_active Expired - Lifetime
- 1977-10-12 SE SE7711491A patent/SE442682B/xx unknown
- 1977-10-14 CA CA288805A patent/CA1080524A/fr not_active Expired
- 1977-10-20 AU AU29882/77A patent/AU510962B2/en not_active Expired
- 1977-10-24 FR FR7731970A patent/FR2369580A1/fr active Granted
- 1977-10-24 BE BE182005A patent/BE860047A/fr not_active IP Right Cessation
- 1977-10-25 JP JP12854277A patent/JPS53146650A/ja active Granted
- 1977-10-25 NL NL7711688A patent/NL7711688A/xx not_active Application Discontinuation
- 1977-10-26 DE DE2748064A patent/DE2748064C3/de not_active Expired
- 1977-10-26 CH CH1302377A patent/CH626178A5/de not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3957354A (en) * | 1975-02-03 | 1976-05-18 | Rca Corporation | Diffractive subtractive color filtering technique |
Non-Patent Citations (1)
Title |
---|
NV2319/76 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509873A1 (fr) * | 1981-07-20 | 1983-01-21 | Rca Corp | Filtre chromatique soustractif par diffraction sensible a l'angle d'incidence d'une lumiere polychromatique, procede d'utilisation et article protege des contrefacons par ce filtre |
Also Published As
Publication number | Publication date |
---|---|
DE2748064A1 (de) | 1978-05-03 |
SE7711491L (sv) | 1978-04-27 |
DE2748064B2 (de) | 1979-05-31 |
AU2988277A (en) | 1979-04-26 |
US4130347A (en) | 1978-12-19 |
GB1589766A (en) | 1981-05-20 |
AU510962B2 (en) | 1980-07-24 |
FR2369580B1 (fr) | 1980-06-20 |
CH626178A5 (fr) | 1981-10-30 |
BE860047A (fr) | 1978-02-15 |
SE442682B (sv) | 1986-01-20 |
JPS613411B2 (fr) | 1986-02-01 |
JPS53146650A (en) | 1978-12-20 |
DE2748064C3 (de) | 1980-02-14 |
CA1080524A (fr) | 1980-07-01 |
NL7711688A (nl) | 1978-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |