FR728748A - Improvements to mirrors - Google Patents

Improvements to mirrors

Info

Publication number
FR728748A
FR728748A FR728748DA FR728748A FR 728748 A FR728748 A FR 728748A FR 728748D A FR728748D A FR 728748DA FR 728748 A FR728748 A FR 728748A
Authority
FR
France
Prior art keywords
mirrors
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
Paul Wurzburger
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 FR728748A publication Critical patent/FR728748A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR728748D 1931-12-22 1931-12-22 Improvements to mirrors Expired FR728748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR728748T 1931-12-22

Publications (1)

Publication Number Publication Date
FR728748A true FR728748A (en) 1932-07-11

Family

ID=9112016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR728748D Expired FR728748A (en) 1931-12-22 1931-12-22 Improvements to mirrors

Country Status (1)

Country Link
FR (1) FR728748A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119366A (en) * 1976-03-05 1978-10-10 Agence Nationale De Valorisation De La Recherche- A.N.V.A.R. Mirrors with a variable focal distance
DE3641944A1 (en) * 1986-12-09 1988-07-07 Michael Prof Dipl I Schoenherr Process for producing concave mirrors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119366A (en) * 1976-03-05 1978-10-10 Agence Nationale De Valorisation De La Recherche- A.N.V.A.R. Mirrors with a variable focal distance
DE3641944A1 (en) * 1986-12-09 1988-07-07 Michael Prof Dipl I Schoenherr Process for producing concave mirrors

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