FR826321A - Large aperture lens especially intended for projection - Google Patents

Large aperture lens especially intended for projection

Info

Publication number
FR826321A
FR826321A FR826321DA FR826321A FR 826321 A FR826321 A FR 826321A FR 826321D A FR826321D A FR 826321DA FR 826321 A FR826321 A FR 826321A
Authority
FR
France
Prior art keywords
projection
large aperture
aperture lens
especially intended
lens especially
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.)
Societe dOptique et de Mecanique de Haute Precision
Original Assignee
Societe dOptique et de Mecanique de Haute Precision
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 Societe dOptique et de Mecanique de Haute Precision filed Critical Societe dOptique et de Mecanique de Haute Precision
Application granted granted Critical
Publication of FR826321A publication Critical patent/FR826321A/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 -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR826321D 1936-12-14 1936-12-14 Large aperture lens especially intended for projection Expired FR826321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR826321T 1936-12-14

Publications (1)

Publication Number Publication Date
FR826321A true FR826321A (en) 1938-03-29

Family

ID=9282797

Family Applications (1)

Application Number Title Priority Date Filing Date
FR826321D Expired FR826321A (en) 1936-12-14 1936-12-14 Large aperture lens especially intended for projection

Country Status (1)

Country Link
FR (1) FR826321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721501A (en) * 1954-03-08 1955-10-25 Bertele Ludwig Three-component objective

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721501A (en) * 1954-03-08 1955-10-25 Bertele Ludwig Three-component objective

Similar Documents

Publication Publication Date Title
FR796025A (en) Support intended particularly for exhibiting objects
FR825828A (en) Reflective blade projector
FR827154A (en) Improvements in photography
FR815213A (en) Hair-dryer
FR826321A (en) Large aperture lens especially intended for projection
FR803679A (en) Very large aperture telephoto lens
FR826134A (en) Slide projection device, particularly applicable to light composition
FR792770A (en) Large aperture photographic lens
FR826874A (en) Raclette transporter
FR813650A (en) Very large aperture photographic lens
CH202950A (en) Mercury contactor.
FR809952A (en) Welding improvements
FR837276A (en) Large relative aperture lens
FR784635A (en) Ellipsoidal mirror projector
FR807273A (en) Large base rangefinder
FR843049A (en) Large aperture lens for cinematic projection and shooting
FR822996A (en) Mercury switch
FR822807A (en) High brightness lens
FR806020A (en) Reflective light fixtures
FR808295A (en) Circular slide rule
FR889280A (en) Large aperture lens
FR823144A (en) Jaw crusher
CH189448A (en) Split-seconds counter.
GR6122B (en) LIGHT MIRROR.
FR938860A (en) Large aperture lens