FR670319A - Lanterne de projection pour éclairements spéciaux - Google Patents

Lanterne de projection pour éclairements spéciaux

Info

Publication number
FR670319A
FR670319A FR670319DA FR670319A FR 670319 A FR670319 A FR 670319A FR 670319D A FR670319D A FR 670319DA FR 670319 A FR670319 A FR 670319A
Authority
FR
France
Prior art keywords
special lighting
projection lantern
lantern
projection
lighting
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
English (en)
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.)
Holophane SAS
Original Assignee
Holophane SAS
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 Holophane SAS filed Critical Holophane SAS
Application granted granted Critical
Publication of FR670319A publication Critical patent/FR670319A/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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/02—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for simulating daylight
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
FR670319D 1929-02-26 1929-02-26 Lanterne de projection pour éclairements spéciaux Expired FR670319A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR670319T 1929-02-26

Publications (1)

Publication Number Publication Date
FR670319A true FR670319A (fr) 1929-11-27

Family

ID=9016258

Family Applications (1)

Application Number Title Priority Date Filing Date
FR670319D Expired FR670319A (fr) 1929-02-26 1929-02-26 Lanterne de projection pour éclairements spéciaux

Country Status (1)

Country Link
FR (1) FR670319A (fr)

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