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.)
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.)
BENARD BARBIER ET TURENNE SOC
Original Assignee
BENARD BARBIER ET TURENNE SOC
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 BENARD BARBIER ET TURENNE SOCfiledCriticalBENARD BARBIER ET TURENNE SOC
Application grantedgrantedCritical
Publication of FR504017ApublicationCriticalpatent/FR504017A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V7/00—Reflectors for light sources
F21V7/04—Optical design
F21V7/06—Optical design with parabolic curvature
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR504017A1918-01-111918-01-11Dispositif pour l'éclairage de grandes surfaces
ExpiredFR504017A
(fr)