FR450690A - Projecteur - Google Patents

Projecteur

Info

Publication number
FR450690A
FR450690A FR450690A FR450690DA FR450690A FR 450690 A FR450690 A FR 450690A FR 450690 A FR450690 A FR 450690A FR 450690D A FR450690D A FR 450690DA FR 450690 A FR450690 A FR 450690A
Authority
FR
France
Prior art keywords
projector
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
FR450690A
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.)
Siemens Schuckertwerke AG
Original Assignee
Siemens Schuckertwerke AG
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 Siemens Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of FR450690A publication Critical patent/FR450690A/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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
FR450690A 1911-12-21 1912-11-18 Projecteur Expired FR450690A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191229577X 1911-12-21

Publications (1)

Publication Number Publication Date
FR450690A true FR450690A (fr) 1913-04-01

Family

ID=32522821

Family Applications (1)

Application Number Title Priority Date Filing Date
FR450690A Expired FR450690A (fr) 1911-12-21 1912-11-18 Projecteur

Country Status (2)

Country Link
FR (1) FR450690A (fr)
GB (1) GB191229577A (fr)

Also Published As

Publication number Publication date
GB191229577A (en) 1913-08-21

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