GB509741A - Improvements relating to illuminating magnifying devices - Google Patents

Improvements relating to illuminating magnifying devices

Info

Publication number
GB509741A
GB509741A GB3535338A GB3535338A GB509741A GB 509741 A GB509741 A GB 509741A GB 3535338 A GB3535338 A GB 3535338A GB 3535338 A GB3535338 A GB 3535338A GB 509741 A GB509741 A GB 509741A
Authority
GB
United Kingdom
Prior art keywords
lens
casing
improvements relating
magnifying devices
illuminating
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
GB3535338A
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.)
THOMAS CHARLES FORD HILL
Original Assignee
THOMAS CHARLES FORD HILL
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 THOMAS CHARLES FORD HILL filed Critical THOMAS CHARLES FORD HILL
Priority to GB3535338A priority Critical patent/GB509741A/en
Publication of GB509741A publication Critical patent/GB509741A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/02—Eyepieces; Magnifying glasses with means for illuminating object viewed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

509,741. Battery lamps combined with magnifying devices. HILL, T. C. F. Dec. 5, 1938, No. 35353. [Class 39 (ii)] [Also in Group XX] An illuminating magnifying device comprises a tubular casing 1 of frusto-conical shape having a lens 8 at the smaller end the interior surface of the lens being adapted to reflect light from an electric lamp bulb 7 disposed in an opening 2 in the side wall of the casing. A further lens 10 may be detachably secured to the larger end of the casing.
GB3535338A 1938-12-05 1938-12-05 Improvements relating to illuminating magnifying devices Expired GB509741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3535338A GB509741A (en) 1938-12-05 1938-12-05 Improvements relating to illuminating magnifying devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3535338A GB509741A (en) 1938-12-05 1938-12-05 Improvements relating to illuminating magnifying devices

Publications (1)

Publication Number Publication Date
GB509741A true GB509741A (en) 1939-07-20

Family

ID=10376788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3535338A Expired GB509741A (en) 1938-12-05 1938-12-05 Improvements relating to illuminating magnifying devices

Country Status (1)

Country Link
GB (1) GB509741A (en)

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