[go: up one dir, main page]

GB586208A - Adjustable support for a lens and lamp used in connection with compasses - Google Patents

Adjustable support for a lens and lamp used in connection with compasses

Info

Publication number
GB586208A
GB586208A GB1650144A GB1650144A GB586208A GB 586208 A GB586208 A GB 586208A GB 1650144 A GB1650144 A GB 1650144A GB 1650144 A GB1650144 A GB 1650144A GB 586208 A GB586208 A GB 586208A
Authority
GB
United Kingdom
Prior art keywords
lens
compasses
connection
adjustable support
lamp used
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
GB1650144A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1650144A priority Critical patent/GB586208A/en
Publication of GB586208A publication Critical patent/GB586208A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/002—Magnifying glasses
    • G02B25/005—Magnifying glasses with means for adjusting the magnifying glass or the object viewed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

586,208. Optical apparatus. ESDAILE, E. W. Aug. 30, 1944, No. 16501. [Classes 97 (i) and 97 (ii)] A magnifying lens is mounted on a magnetic compass by a support comprising arms 5, 6 pivoted at 9, 10 to the compass housing 4 so that the height of the lens relative to the compass card may be varied without affecting the focus, of the lens. The line forming the pivots is tangential to the compass card and passes through the lubber line so that the latter is in focus as the lens is pivoted. A lamp 13 is provided. One arm only may be used.
GB1650144A 1944-08-30 1944-08-30 Adjustable support for a lens and lamp used in connection with compasses Expired GB586208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1650144A GB586208A (en) 1944-08-30 1944-08-30 Adjustable support for a lens and lamp used in connection with compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1650144A GB586208A (en) 1944-08-30 1944-08-30 Adjustable support for a lens and lamp used in connection with compasses

Publications (1)

Publication Number Publication Date
GB586208A true GB586208A (en) 1947-03-11

Family

ID=10078473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1650144A Expired GB586208A (en) 1944-08-30 1944-08-30 Adjustable support for a lens and lamp used in connection with compasses

Country Status (1)

Country Link
GB (1) GB586208A (en)

Similar Documents

Publication Publication Date Title
GB586208A (en) Adjustable support for a lens and lamp used in connection with compasses
GB599260A (en) An instrument for aiding navigation
US2388476A (en) Adjustable support for lenses and lamps used in connection with compasses and the like
GB591991A (en) Improvements in or relating to measuring the focal length of lenses
SU71565A2 (en) Microscope for Goniometric Crystal Examination
GB578981A (en) Device for use in making bifocal lenses
GB1527478A (en) Projection type focometers
GB1155655A (en) Photographic Enlarging Apparatus
GB570022A (en) A projection system for the inspection of internal surfaces
GB865486A (en) Improvements in or relating to lens supports for vertex refraction meters
GB637854A (en) Improvements in or relating to optical apparatus
SU60104A1 (en) Counting microscope
GB815329A (en) Improvements in optical range-finders
GB597433A (en) Improvements in and relating to an optical instrument for measuring lengths
GB628192A (en) Improvements in and relating to inspection lamps
GB671453A (en) Improvements in micro projection apparatus
GB539257A (en) Improved binnacle top for taking bearings
GB609960A (en) An improved protractor for the graphical tracing of rays in an optical system
GB616589A (en) Improvements connected with illuminated magnifying devices
GB539342A (en) An improved optical instrument for observing, comparing, or measuring angles
ES143519U (en) Lamp with built-in magnifying glass (Machine-translation by Google Translate, not legally binding)
GB616253A (en) Planimeter
FR1078646A (en) Adjustable support device, in particular for optical sighting instruments
GB577058A (en) Improvements in or relating to optical computation devices
GB619836A (en) Improvements in or relating to astro-compasses