FR587465A - Improvements to sighting devices for cannons, bomb throwers, etc., used on ships or other mobiles - Google Patents

Improvements to sighting devices for cannons, bomb throwers, etc., used on ships or other mobiles

Info

Publication number
FR587465A
FR587465A FR587465DA FR587465A FR 587465 A FR587465 A FR 587465A FR 587465D A FR587465D A FR 587465DA FR 587465 A FR587465 A FR 587465A
Authority
FR
France
Prior art keywords
cannons
mobiles
ships
sighting devices
throwers
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 FR587465A publication Critical patent/FR587465A/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
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
    • G02B27/648—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake for automatically maintaining a reference alignment, e.g. in self-levelling surveying instruments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR587465D 1916-08-04 1920-07-09 Improvements to sighting devices for cannons, bomb throwers, etc., used on ships or other mobiles Expired FR587465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB587465X 1916-08-04

Publications (1)

Publication Number Publication Date
FR587465A true FR587465A (en) 1925-04-18

Family

ID=10482328

Family Applications (1)

Application Number Title Priority Date Filing Date
FR587465D Expired FR587465A (en) 1916-08-04 1920-07-09 Improvements to sighting devices for cannons, bomb throwers, etc., used on ships or other mobiles

Country Status (1)

Country Link
FR (1) FR587465A (en)

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