GB258325A - Improvements in optical lenses and the like - Google Patents

Improvements in optical lenses and the like

Info

Publication number
GB258325A
GB258325A GB1546825A GB1546825A GB258325A GB 258325 A GB258325 A GB 258325A GB 1546825 A GB1546825 A GB 1546825A GB 1546825 A GB1546825 A GB 1546825A GB 258325 A GB258325 A GB 258325A
Authority
GB
United Kingdom
Prior art keywords
lenses
discs
focal length
fluid
pressure
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
GB1546825A
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 GB1546825A priority Critical patent/GB258325A/en
Publication of GB258325A publication Critical patent/GB258325A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/08—Auxiliary lenses; Arrangements for varying focal length
    • G02C7/081—Ophthalmic lenses with variable focal length
    • G02C7/085—Fluid-filled lenses, e.g. electro-wetting lenses

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

258,325. Mitchell, F. B. June 15, 1925. Liquid lenses.-Lenses comprising a chamber having flexible walls, the convexity or concavity of which is maintained by a fluid under pressure, are provided with means for varying the quantity of fluid contained as desired in order to a,lter the focal length. The lenses consist of thin discs of glass B, C carried between the dished rings H, J. Between the discs B, C are situated rubber rings R, S and a tubular member L having openings into the interior of the lens. Fluid is supplied by the inlet tube L<1> and may be above or below the external pressure according to the focal length desired. When the lenses are used as spectacle lenses, the frame acts as the supply tube and the pressure is applied by a rubber ball P or by pressure rollers on the tube 0. In one modification, Fig. 4. one of the glass discs consists of a lens M and the fluid is utilized in conjunction with the flexible disc N to modify its focal length. In other modifications the discs may be of variable thickness to counteract for an irregular periphery or to modify the bending, or may be fitted with a supporting ring smaller in diameter than the discs so that pressure applied to the periphery may modify the focal length. The lenses may be used for telescopes, for projection apparatus or for windows.
GB1546825A 1925-06-15 1925-06-15 Improvements in optical lenses and the like Expired GB258325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1546825A GB258325A (en) 1925-06-15 1925-06-15 Improvements in optical lenses and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1546825A GB258325A (en) 1925-06-15 1925-06-15 Improvements in optical lenses and the like

Publications (1)

Publication Number Publication Date
GB258325A true GB258325A (en) 1926-09-15

Family

ID=10059654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1546825A Expired GB258325A (en) 1925-06-15 1925-06-15 Improvements in optical lenses and the like

Country Status (1)

Country Link
GB (1) GB258325A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437642A (en) * 1946-08-16 1948-03-09 Henroteau Francois Char Pierre Spectacles
US2576581A (en) * 1946-07-09 1951-11-27 Benjamin F Edwards Polyfocal spectacles
US2836101A (en) * 1955-09-01 1958-05-27 Swart Dev Company De Optical elements
DE1096071B (en) * 1957-05-22 1960-12-29 Dr Otto Pott Adjustable range of vision glasses
US3598479A (en) * 1968-03-11 1971-08-10 Nat Res Dev Variable focus liquid lenses
FR2081108A2 (en) * 1969-12-10 1971-12-03 Comp Generale Electricite
US4913536A (en) * 1987-07-14 1990-04-03 Daniel Barnea Variable power lens and method
US5124734A (en) * 1987-07-14 1992-06-23 Daniel Barnea Opthalmic lens
US5229885A (en) * 1991-09-03 1993-07-20 Quaglia Lawrence D Infinitely variable focal power lens units precisely matched to varying distances by radar and electronics
GB2277996A (en) * 1992-12-30 1994-11-16 Hsin Yi Foundation Variable liquid lens assembly
WO1996038744A1 (en) * 1995-06-01 1996-12-05 Joshua David Silver An optical apparatus and method
US5668620A (en) * 1994-04-12 1997-09-16 Kurtin; Stephen Variable focal length lenses which have an arbitrarily shaped periphery
GB2316767A (en) * 1995-06-01 1998-03-04 Joshua David Silver An optical apparatus and method
US5956183A (en) * 1998-05-26 1999-09-21 Epstein; Saul Field-customizable variable focal length lens
US5999328A (en) * 1994-11-08 1999-12-07 Kurtin; Stephen Liquid-filled variable focus lens with band actuator
US6040947A (en) * 1998-06-09 2000-03-21 Lane Research Variable spectacle lens
WO2009109749A1 (en) * 2008-03-04 2009-09-11 Adlens Ltd Valve device for a variable focus lens
WO2011047308A1 (en) * 2009-10-15 2011-04-21 Adlens Beacon, Inc. Fluid filled lens reservoir system and manufacturing method of the reservoir system

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576581A (en) * 1946-07-09 1951-11-27 Benjamin F Edwards Polyfocal spectacles
US2437642A (en) * 1946-08-16 1948-03-09 Henroteau Francois Char Pierre Spectacles
US2836101A (en) * 1955-09-01 1958-05-27 Swart Dev Company De Optical elements
DE1096071B (en) * 1957-05-22 1960-12-29 Dr Otto Pott Adjustable range of vision glasses
US3598479A (en) * 1968-03-11 1971-08-10 Nat Res Dev Variable focus liquid lenses
FR2081108A2 (en) * 1969-12-10 1971-12-03 Comp Generale Electricite
US4913536A (en) * 1987-07-14 1990-04-03 Daniel Barnea Variable power lens and method
US5124734A (en) * 1987-07-14 1992-06-23 Daniel Barnea Opthalmic lens
US5229885A (en) * 1991-09-03 1993-07-20 Quaglia Lawrence D Infinitely variable focal power lens units precisely matched to varying distances by radar and electronics
GB2277996A (en) * 1992-12-30 1994-11-16 Hsin Yi Foundation Variable liquid lens assembly
GB2277996B (en) * 1992-12-30 1996-01-31 Hsin Yi Foundation Variable lens assembly
US5668620A (en) * 1994-04-12 1997-09-16 Kurtin; Stephen Variable focal length lenses which have an arbitrarily shaped periphery
US5999328A (en) * 1994-11-08 1999-12-07 Kurtin; Stephen Liquid-filled variable focus lens with band actuator
KR100449565B1 (en) * 1995-06-01 2004-12-17 데이비드 실버 죠수아 An Optical Apparatus and Method
CN1133883C (en) * 1995-06-01 2004-01-07 乔斯华·戴维·西尔弗 A pair of spectacles
GB2316767B (en) * 1995-06-01 1999-09-29 Joshua David Silver An optical apparatus and method
GB2316767A (en) * 1995-06-01 1998-03-04 Joshua David Silver An optical apparatus and method
EA000629B1 (en) * 1995-06-01 1999-12-29 Джошуа Дейвид Силвер An optical apparatus and method adjusting thereof
WO1996038744A1 (en) * 1995-06-01 1996-12-05 Joshua David Silver An optical apparatus and method
US6069742A (en) * 1995-06-01 2000-05-30 Joshua David Silver Optical apparatus and method
US5956183A (en) * 1998-05-26 1999-09-21 Epstein; Saul Field-customizable variable focal length lens
US6040947A (en) * 1998-06-09 2000-03-21 Lane Research Variable spectacle lens
WO2009109749A1 (en) * 2008-03-04 2009-09-11 Adlens Ltd Valve device for a variable focus lens
US8446677B2 (en) 2008-03-04 2013-05-21 Adlens Ltd. Valve device for a variable focus lens
WO2011047308A1 (en) * 2009-10-15 2011-04-21 Adlens Beacon, Inc. Fluid filled lens reservoir system and manufacturing method of the reservoir system
CN102667538A (en) * 2009-10-15 2012-09-12 阿德伦丝必康公司 Fluid filled lens reservoir system and manufacturing method of the reservoir system
CN102667538B (en) * 2009-10-15 2015-07-15 阿德伦丝必康公司 Fluid filled lens reservoir system and manufacturing method of the reservoir system

Similar Documents

Publication Publication Date Title
GB258325A (en) Improvements in optical lenses and the like
US3161718A (en) Variable power fluid lens
US4334736A (en) Wet cornea microscope
GB571912A (en) Improvements in or relating to liquid lenses
US695606A (en) Lens system.
US2328603A (en) Optical instrument
US1433676A (en) Eye goggles
US1556982A (en) Means for softening the contours of the images of photographic objectives
GB503901A (en) Improvements in diaphragms for spaced optical objectives
CN2041431U (en) Elastic hydraulic varifocal lens
US1528192A (en) Optical method and instrument
RU155281U1 (en) LIGHT WIDTH WIDE ANGLE LENS
GB2009960A (en) Distortion corrected holographic optical elements
GB876798A (en) Improvements in or relating to optical lenses
RU2085106C1 (en) Arrangement for choice of spectacles
SU1090386A1 (en) Eye model
US3128329A (en) Optical projector lens systems
FR2375617A1 (en) Opticians lens holder for determination of glass dia. - allows spacing and minimum lens size to be determined
JPS57158802A (en) Variable focus lens
GB401083A (en) Improvements in eye shades
US2101340A (en) Holder for optical instruments
GB339986A (en) Improvements in apparatus for holding opera glasses and the like up to the eyes
RU2020133172A (en) Magnifier
KEPRT Possibilities of limiting the accommodation range of the eye, with particular reference to the increase of the adjustment accuracy of optico-mechanical instruments(Eye accommodation range limiting for increased adjustment accuracy of optico-mechanical instruments, considering spectacle lens, telescope, magnifying glass and microscope)
Sheldon Method for the determination of the indices of refraction of liquids