EP1271049A3 - Process for the production of diffusing screens for lighting appliances and the diffusing screen thus obtained - Google Patents

Process for the production of diffusing screens for lighting appliances and the diffusing screen thus obtained Download PDF

Info

Publication number
EP1271049A3
EP1271049A3 EP02077517A EP02077517A EP1271049A3 EP 1271049 A3 EP1271049 A3 EP 1271049A3 EP 02077517 A EP02077517 A EP 02077517A EP 02077517 A EP02077517 A EP 02077517A EP 1271049 A3 EP1271049 A3 EP 1271049A3
Authority
EP
European Patent Office
Prior art keywords
diffusing
production
screens
lighting appliances
screen
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.)
Withdrawn
Application number
EP02077517A
Other languages
German (de)
French (fr)
Other versions
EP1271049A2 (en
Inventor
Giannunzio Guzzini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sirrah Srl
Original Assignee
Sirrah Srl
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 Sirrah Srl filed Critical Sirrah Srl
Publication of EP1271049A2 publication Critical patent/EP1271049A2/en
Publication of EP1271049A3 publication Critical patent/EP1271049A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V5/00—Refractors for light sources
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

A process for the production of diffusing screens (12) of light radiation for lighting appliances (11), according to which a series of elements (15) is obtained, which form one or more patterns or finishes, on at least one polycarbonate sheet (16), used as a diffusing screen (12), by means of the drawing technology.
EP02077517A 2001-06-28 2002-06-25 Process for the production of diffusing screens for lighting appliances and the diffusing screen thus obtained Withdrawn EP1271049A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001MI001368A ITMI20011368A1 (en) 2001-06-28 2001-06-28 PROCEDURE FOR THE PRODUCTION OF DIFFUSION SCREENS FOR LIGHTING EQUIPMENT AND DIFFUSER SCREEN SO OBTAINED
ITMI20011368 2001-06-28

Publications (2)

Publication Number Publication Date
EP1271049A2 EP1271049A2 (en) 2003-01-02
EP1271049A3 true EP1271049A3 (en) 2003-02-05

Family

ID=11447957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02077517A Withdrawn EP1271049A3 (en) 2001-06-28 2002-06-25 Process for the production of diffusing screens for lighting appliances and the diffusing screen thus obtained

Country Status (4)

Country Link
EP (1) EP1271049A3 (en)
HK (1) HK1049690A1 (en)
IT (1) ITMI20011368A1 (en)
NO (1) NO20023113L (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735124A (en) * 1971-08-05 1973-05-22 Emerson Electric Co Prismatic lenses for lighting fixtures
US3862505A (en) * 1972-02-25 1975-01-28 Rudolf Jeroma Advertising devices
US5123722A (en) * 1990-07-20 1992-06-23 Meymand Darlene K Decorative glass
US5247390A (en) * 1991-11-05 1993-09-21 Aharon Zeev Hed Lightweight low-loss refractive light diffusion system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735124A (en) * 1971-08-05 1973-05-22 Emerson Electric Co Prismatic lenses for lighting fixtures
US3862505A (en) * 1972-02-25 1975-01-28 Rudolf Jeroma Advertising devices
US5123722A (en) * 1990-07-20 1992-06-23 Meymand Darlene K Decorative glass
US5247390A (en) * 1991-11-05 1993-09-21 Aharon Zeev Hed Lightweight low-loss refractive light diffusion system

Also Published As

Publication number Publication date
EP1271049A2 (en) 2003-01-02
HK1049690A1 (en) 2003-05-23
ITMI20011368A1 (en) 2002-12-28
ITMI20011368A0 (en) 2001-06-28
NO20023113D0 (en) 2002-06-27
NO20023113L (en) 2002-12-30

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