IT1191035B - Apparato di disppersione della luce - Google Patents
Apparato di disppersione della luceInfo
- Publication number
- IT1191035B IT1191035B IT23772/82A IT2377282A IT1191035B IT 1191035 B IT1191035 B IT 1191035B IT 23772/82 A IT23772/82 A IT 23772/82A IT 2377282 A IT2377282 A IT 2377282A IT 1191035 B IT1191035 B IT 1191035B
- Authority
- IT
- Italy
- Prior art keywords
- light dispersion
- dispersion apparatus
- light
- dispersion
- Prior art date
Links
- 239000006185 dispersion Substances 0.000 title 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Polarising Elements (AREA)
- Laminated Bodies (AREA)
- Length Measuring Devices By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPE119981 | 1981-10-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8223772A0 IT8223772A0 (it) | 1982-10-15 |
IT1191035B true IT1191035B (it) | 1988-02-24 |
Family
ID=3768322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23772/82A IT1191035B (it) | 1981-10-16 | 1982-10-15 | Apparato di disppersione della luce |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0091448A4 (it) |
JP (1) | JPS58501739A (it) |
AU (1) | AU8996182A (it) |
ES (1) | ES8308121A1 (it) |
IT (1) | IT1191035B (it) |
WO (1) | WO1983001516A1 (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2590652B1 (fr) * | 1985-11-27 | 1988-11-18 | Cit Alcatel | Dispositif antireverberatoire pour feu de signalisation |
AU7041191A (en) * | 1989-11-10 | 1991-06-13 | Memotech Computers Limited | Optical image processing |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2398624A (en) * | 1943-12-17 | 1946-04-16 | Pennsylvania Railroad Co | Light transmitting element |
US2745001A (en) * | 1951-12-15 | 1956-05-08 | Edwin F Guth | Light diffusors for illuminating devices |
US2913576A (en) * | 1957-03-18 | 1959-11-17 | Curtis Lighting Inc | Louver-diffuser |
GB1275094A (en) * | 1968-08-22 | 1972-05-24 | Nippon Selfoc Co Ltd | Optical device for transmitting an image |
NL7309384A (nl) * | 1973-07-05 | 1975-01-07 | Philips Nv | Vezelplaat met een regelmatige stapeling van rechthoekige vezels. |
US4184762A (en) * | 1978-06-16 | 1980-01-22 | Oscar Guzman | Variable definition projection systems |
-
1982
- 1982-10-15 ES ES82516542A patent/ES8308121A1/es not_active Expired
- 1982-10-15 WO PCT/AU1982/000171 patent/WO1983001516A1/en not_active Application Discontinuation
- 1982-10-15 AU AU89961/82A patent/AU8996182A/en not_active Abandoned
- 1982-10-15 EP EP19820903033 patent/EP0091448A4/en not_active Withdrawn
- 1982-10-15 IT IT23772/82A patent/IT1191035B/it active
- 1982-10-15 JP JP57503104A patent/JPS58501739A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0091448A1 (en) | 1983-10-19 |
AU8996182A (en) | 1983-05-05 |
IT8223772A0 (it) | 1982-10-15 |
ES516542A0 (es) | 1983-08-01 |
JPS58501739A (ja) | 1983-10-13 |
ES8308121A1 (es) | 1983-08-01 |
WO1983001516A1 (en) | 1983-04-28 |
EP0091448A4 (en) | 1984-03-14 |
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