FR846215A - Auxiliary optical systems for photographic lenses - Google Patents

Auxiliary optical systems for photographic lenses

Info

Publication number
FR846215A
FR846215A FR846215DA FR846215A FR 846215 A FR846215 A FR 846215A FR 846215D A FR846215D A FR 846215DA FR 846215 A FR846215 A FR 846215A
Authority
FR
France
Prior art keywords
optical systems
auxiliary optical
photographic lenses
photographic
lenses
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe 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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR846215A publication Critical patent/FR846215A/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
    • G02B5/20—Filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR846215D 1937-11-19 1938-11-18 Auxiliary optical systems for photographic lenses Expired FR846215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US846215XA 1937-11-19 1937-11-19

Publications (1)

Publication Number Publication Date
FR846215A true FR846215A (en) 1939-09-12

Family

ID=22186156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR846215D Expired FR846215A (en) 1937-11-19 1938-11-18 Auxiliary optical systems for photographic lenses

Country Status (1)

Country Link
FR (1) FR846215A (en)

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