FR42449E - Projection lens - Google Patents

Projection lens

Info

Publication number
FR42449E
FR42449E FR42449DA FR42449E FR 42449 E FR42449 E FR 42449E FR 42449D A FR42449D A FR 42449DA FR 42449 E FR42449 E FR 42449E
Authority
FR
France
Prior art keywords
projection lens
lens
projection
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.)
P GUILLAUME ET CIE SOC
Original Assignee
P GUILLAUME ET CIE SOC
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 P GUILLAUME ET CIE SOC filed Critical P GUILLAUME ET CIE SOC
Application granted granted Critical
Publication of FR42449E publication Critical patent/FR42449E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR42449D 1932-10-19 1932-10-19 Projection lens Expired FR42449E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR42449T 1932-10-19

Publications (1)

Publication Number Publication Date
FR42449E true FR42449E (en) 1933-07-19

Family

ID=8678513

Family Applications (1)

Application Number Title Priority Date Filing Date
FR42449D Expired FR42449E (en) 1932-10-19 1932-10-19 Projection lens

Country Status (1)

Country Link
FR (1) FR42449E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625856A (en) * 1949-09-03 1953-01-20 American Optical Corp Telecentric objective

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625856A (en) * 1949-09-03 1953-01-20 American Optical Corp Telecentric objective

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