GB386721A - Improvements in lenses and in the method of manufacture thereof - Google Patents

Improvements in lenses and in the method of manufacture thereof

Info

Publication number
GB386721A
GB386721A GB2685431A GB2685431A GB386721A GB 386721 A GB386721 A GB 386721A GB 2685431 A GB2685431 A GB 2685431A GB 2685431 A GB2685431 A GB 2685431A GB 386721 A GB386721 A GB 386721A
Authority
GB
United Kingdom
Prior art keywords
lens
lenses
southwick
class
enclosing
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
GB2685431A
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 GB2685431A priority Critical patent/GB386721A/en
Publication of GB386721A publication Critical patent/GB386721A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/06—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of fluids in transparent cells

Landscapes

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

Abstract

386,721. Lenses ; reflectors. SOUTHWICK, J. and SOUTHWICK, S. J., 46, Great Hampton Street, Birmingham. Sept. 26, 1931, No. 26854. [Class 97 (i).] A lens is made from celluloid &c. of hollow formation enclosing a liquid refractive filling. The lens is formed of two discs a, b of any desired curvatures, having interengaging flanges a<1>, bl which are secured together by an adhesive, enclosing a cavity c which is filled with water &c. The lens is particularly intended for use as a rear reflector on bicycles &c., and for this purpose the outer surface of the disc a may be formed with facets. Reference has been directed by the Comptroller to Specification 9432/13, [Class 97 (i), Optical systems &c.].
GB2685431A 1931-09-26 1931-09-26 Improvements in lenses and in the method of manufacture thereof Expired GB386721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2685431A GB386721A (en) 1931-09-26 1931-09-26 Improvements in lenses and in the method of manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2685431A GB386721A (en) 1931-09-26 1931-09-26 Improvements in lenses and in the method of manufacture thereof

Publications (1)

Publication Number Publication Date
GB386721A true GB386721A (en) 1933-01-26

Family

ID=10250295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2685431A Expired GB386721A (en) 1931-09-26 1931-09-26 Improvements in lenses and in the method of manufacture thereof

Country Status (1)

Country Link
GB (1) GB386721A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836101A (en) * 1955-09-01 1958-05-27 Swart Dev Company De Optical elements
US4289119A (en) * 1979-02-22 1981-09-15 Soloptics, Inc. Solar collector
DE2928969C2 (en) * 1979-07-18 1981-10-08 Karl 4100 Duisburg Kemmler Device for concentrating sunlight
WO2010134069A1 (en) * 2009-05-21 2010-11-25 Yohanan Frederic Zweig Light concentrator, redirector and distributor
DE102012024369A1 (en) * 2012-12-02 2014-03-20 Ralf Hoyer Solar system for conversion of solar radiation energy into electrical energy for heating water, has collecting lenses with hollow lens halves connected by hinge, and light and heat sensitive elements arranged as photo cells in lens halves

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836101A (en) * 1955-09-01 1958-05-27 Swart Dev Company De Optical elements
US4289119A (en) * 1979-02-22 1981-09-15 Soloptics, Inc. Solar collector
DE2928969C2 (en) * 1979-07-18 1981-10-08 Karl 4100 Duisburg Kemmler Device for concentrating sunlight
WO2010134069A1 (en) * 2009-05-21 2010-11-25 Yohanan Frederic Zweig Light concentrator, redirector and distributor
DE102012024369A1 (en) * 2012-12-02 2014-03-20 Ralf Hoyer Solar system for conversion of solar radiation energy into electrical energy for heating water, has collecting lenses with hollow lens halves connected by hinge, and light and heat sensitive elements arranged as photo cells in lens halves

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