FR696573A - Improvements to light reflectors - Google Patents

Improvements to light reflectors

Info

Publication number
FR696573A
FR696573A FR696573DA FR696573A FR 696573 A FR696573 A FR 696573A FR 696573D A FR696573D A FR 696573DA FR 696573 A FR696573 A FR 696573A
Authority
FR
France
Prior art keywords
light reflectors
reflectors
light
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Joseph Macnab
Mamicone Mhitarian
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 filed Critical
Application granted granted Critical
Publication of FR696573A publication Critical patent/FR696573A/en
Expired 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
    • F21V7/00—Reflectors for light sources
    • F21V7/10—Construction

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR696573D 1929-06-10 1930-06-03 Improvements to light reflectors Expired FR696573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB696573X 1929-06-10

Publications (1)

Publication Number Publication Date
FR696573A true FR696573A (en) 1931-01-05

Family

ID=10493460

Family Applications (1)

Application Number Title Priority Date Filing Date
FR696573D Expired FR696573A (en) 1929-06-10 1930-06-03 Improvements to light reflectors

Country Status (1)

Country Link
FR (1) FR696573A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605000A1 (en) * 1985-02-22 1986-09-04 Sharp Kk LIGHTING DEVICE
DE3711394A1 (en) * 1987-04-04 1988-11-03 Ullmann Ulo Werk Reflector for a luminaire
US4989125A (en) * 1988-05-10 1991-01-29 Minnesota Mining And Manufacturing Company Reflector using fresnel-type structures having a plurality of active faces
DE3933411A1 (en) * 1989-10-06 1991-04-18 Daimler Benz Ag Divided paraboloidal reflector for motor vehicle lamp - minimises central dark zone by direct transmission through Fresnel lens with peripheral reflection from inclined paraboloids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605000A1 (en) * 1985-02-22 1986-09-04 Sharp Kk LIGHTING DEVICE
DE3711394A1 (en) * 1987-04-04 1988-11-03 Ullmann Ulo Werk Reflector for a luminaire
US4989125A (en) * 1988-05-10 1991-01-29 Minnesota Mining And Manufacturing Company Reflector using fresnel-type structures having a plurality of active faces
DE3933411A1 (en) * 1989-10-06 1991-04-18 Daimler Benz Ag Divided paraboloidal reflector for motor vehicle lamp - minimises central dark zone by direct transmission through Fresnel lens with peripheral reflection from inclined paraboloids

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