FR737974A - Improvements to illuminated projectors - Google Patents

Improvements to illuminated projectors

Info

Publication number
FR737974A
FR737974A FR737974DA FR737974A FR 737974 A FR737974 A FR 737974A FR 737974D A FR737974D A FR 737974DA FR 737974 A FR737974 A FR 737974A
Authority
FR
France
Prior art keywords
projectors
illuminated
illuminated projectors
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)
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.)
Maison Breguet SA
Original Assignee
Maison Breguet SA
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 Maison Breguet SA filed Critical Maison Breguet SA
Application granted granted Critical
Publication of FR737974A publication Critical patent/FR737974A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR737974D 1931-09-30 1931-09-30 Improvements to illuminated projectors Expired FR737974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR737974T 1931-09-30

Publications (1)

Publication Number Publication Date
FR737974A true FR737974A (en) 1932-12-19

Family

ID=9132037

Family Applications (1)

Application Number Title Priority Date Filing Date
FR737974D Expired FR737974A (en) 1931-09-30 1931-09-30 Improvements to illuminated projectors

Country Status (1)

Country Link
FR (1) FR737974A (en)

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