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GB112086A - Improvements relating to Lenses. - Google Patents

Improvements relating to Lenses.

Info

Publication number
GB112086A
GB112086A GB6291/17A GB629117A GB112086A GB 112086 A GB112086 A GB 112086A GB 6291/17 A GB6291/17 A GB 6291/17A GB 629117 A GB629117 A GB 629117A GB 112086 A GB112086 A GB 112086A
Authority
GB
United Kingdom
Prior art keywords
lenses
improvements relating
plano
convex section
annular part
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
GB6291/17A
Inventor
William Frederick Alber Richey
William Alexander Jeboult
Henry John Scott Stobart
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 GB6291/17A priority Critical patent/GB112086A/en
Publication of GB112086A publication Critical patent/GB112086A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

112,086. Richey, W. F. A., Jeboult, W. A., and Stobart, H. J. S. May 3, 1917. Lenses.-A lens for search-lights &c. for converting parallel beams of light into conical beams comprises an annular part b of plano-convex section and a central circular part a of plano-convex section. The annular part may be formed of two or more pieces united or framed together.
GB6291/17A 1917-05-03 1917-05-03 Improvements relating to Lenses. Expired GB112086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB6291/17A GB112086A (en) 1917-05-03 1917-05-03 Improvements relating to Lenses.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6291/17A GB112086A (en) 1917-05-03 1917-05-03 Improvements relating to Lenses.

Publications (1)

Publication Number Publication Date
GB112086A true GB112086A (en) 1917-12-27

Family

ID=32245942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6291/17A Expired GB112086A (en) 1917-05-03 1917-05-03 Improvements relating to Lenses.

Country Status (1)

Country Link
GB (1) GB112086A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424475A1 (en) * 1978-04-24 1979-11-23 Cipel LUMINOUS SIGNALING DEVICE EMITTING A CONICAL BEAM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424475A1 (en) * 1978-04-24 1979-11-23 Cipel LUMINOUS SIGNALING DEVICE EMITTING A CONICAL BEAM

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