IT1191035B - Apparato di disppersione della luce - Google Patents

Apparato di disppersione della luce

Info

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
Application number
IT23772/82A
Other languages
English (en)
Other versions
IT8223772A0 (it
Inventor
Albert Ter-Horst
Michael David Crooke
Original Assignee
Horst Albert Ter
Michael David Crooke
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Horst Albert Ter, Michael David Crooke filed Critical Horst Albert Ter
Publication of IT8223772A0 publication Critical patent/IT8223772A0/it
Application granted granted Critical
Publication of IT1191035B publication Critical patent/IT1191035B/it

Links

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)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Laminated Bodies (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Polarising Elements (AREA)
IT23772/82A 1981-10-16 1982-10-15 Apparato di disppersione della luce IT1191035B (it)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590652B1 (fr) * 1985-11-27 1988-11-18 Cit Alcatel Dispositif antireverberatoire pour feu de signalisation
WO1991007681A1 (en) * 1989-11-10 1991-05-30 Memotech Computers Limited Optical image processing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES516542A0 (es) 1983-08-01
EP0091448A1 (en) 1983-10-19
WO1983001516A1 (en) 1983-04-28
EP0091448A4 (en) 1984-03-14
IT8223772A0 (it) 1982-10-15
JPS58501739A (ja) 1983-10-13
AU8996182A (en) 1983-05-05
ES8308121A1 (es) 1983-08-01

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