FR2212513B1 - - Google Patents

Info

Publication number
FR2212513B1
FR2212513B1 FR7246751A FR7246751A FR2212513B1 FR 2212513 B1 FR2212513 B1 FR 2212513B1 FR 7246751 A FR7246751 A FR 7246751A FR 7246751 A FR7246751 A FR 7246751A FR 2212513 B1 FR2212513 B1 FR 2212513B1
Authority
FR
France
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
FR7246751A
Other versions
FR2212513A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7246751A priority Critical patent/FR2212513B1/fr
Publication of FR2212513A1 publication Critical patent/FR2212513A1/fr
Application granted granted Critical
Publication of FR2212513B1 publication Critical patent/FR2212513B1/fr
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
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/16—Illumination arrangements, e.g. positioning of lamps, positioning of reflectors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR7246751A 1972-12-28 1972-12-28 Expired FR2212513B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7246751A FR2212513B1 (fr) 1972-12-28 1972-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7246751A FR2212513B1 (fr) 1972-12-28 1972-12-28

Publications (2)

Publication Number Publication Date
FR2212513A1 FR2212513A1 (fr) 1974-07-26
FR2212513B1 true FR2212513B1 (fr) 1976-06-04

Family

ID=9109464

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7246751A Expired FR2212513B1 (fr) 1972-12-28 1972-12-28

Country Status (1)

Country Link
FR (1) FR2212513B1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT500366A (fr) * 1952-02-21

Also Published As

Publication number Publication date
FR2212513A1 (fr) 1974-07-26

Similar Documents

Publication Publication Date Title
JPS4949938A (fr)
CH573743A5 (fr)
CH574146A5 (fr)
CH570330A5 (fr)
CH570176A5 (fr)
CH570064A5 (fr)
CH569076A5 (fr)
CH567798A5 (fr)
CH565301A5 (fr)
CH565246A5 (fr)
CH561428A5 (fr)
CH557907A (fr)
CH555674A4 (fr)
CH322372A4 (fr)
CH315973A4 (fr)
CH1809873A4 (fr)
CH1668773A4 (fr)
CH1626173A4 (fr)
BG19428A1 (fr)
BG18386A1 (fr)
BG18373A1 (fr)
BG18292A1 (fr)
BG18059A1 (fr)
BG18024A1 (fr)
BE788499A (fr)

Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse