FR587464A - Improvements to sighting devices - Google Patents

Improvements to sighting devices

Info

Publication number
FR587464A
FR587464A FR587464DA FR587464A FR 587464 A FR587464 A FR 587464A FR 587464D A FR587464D A FR 587464DA FR 587464 A FR587464 A FR 587464A
Authority
FR
France
Prior art keywords
sighting devices
sighting
devices
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
James Blacklock Henderson
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 FR587464A publication Critical patent/FR587464A/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
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/644—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for large deviations, e.g. maintaining a fixed line of sight while a vehicle on which the system is mounted changes course

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR587464D 1915-11-25 1920-07-09 Improvements to sighting devices Expired FR587464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB587464X 1915-11-25

Publications (1)

Publication Number Publication Date
FR587464A true FR587464A (en) 1925-04-18

Family

ID=10482327

Family Applications (1)

Application Number Title Priority Date Filing Date
FR587464D Expired FR587464A (en) 1915-11-25 1920-07-09 Improvements to sighting devices

Country Status (1)

Country Link
FR (1) FR587464A (en)

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