FR1158591A - optical element for observation or sighting device - Google Patents

optical element for observation or sighting device

Info

Publication number
FR1158591A
FR1158591A FR1158591DA FR1158591A FR 1158591 A FR1158591 A FR 1158591A FR 1158591D A FR1158591D A FR 1158591DA FR 1158591 A FR1158591 A FR 1158591A
Authority
FR
France
Prior art keywords
observation
optical element
sighting device
sighting
optical
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
Marcel Locquin
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 FR1158591A publication Critical patent/FR1158591A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/147—Beam splitting or combining systems operating by reflection only using averaging effects by spatially variable reflectivity on a microscopic level, e.g. polka dots, chequered or discontinuous patterns, or rapidly moving surfaces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1158591D 1956-09-19 1956-09-19 optical element for observation or sighting device Expired FR1158591A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1158591T 1956-09-19

Publications (1)

Publication Number Publication Date
FR1158591A true FR1158591A (en) 1958-06-17

Family

ID=9651122

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1158591D Expired FR1158591A (en) 1956-09-19 1956-09-19 optical element for observation or sighting device

Country Status (1)

Country Link
FR (1) FR1158591A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816664A (en) * 1985-10-24 1989-03-28 Ernst Leitz Wetzlar Gmbh Focusing detector having a scanning grating used both as a beam splitter and spatial and frequency filter
US6542304B2 (en) 1999-05-17 2003-04-01 Toolz, Ltd. Laser beam device with apertured reflective element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816664A (en) * 1985-10-24 1989-03-28 Ernst Leitz Wetzlar Gmbh Focusing detector having a scanning grating used both as a beam splitter and spatial and frequency filter
US6542304B2 (en) 1999-05-17 2003-04-01 Toolz, Ltd. Laser beam device with apertured reflective element

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