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GB2539822B - Variable focus lenses - Google Patents

Variable focus lenses Download PDF

Info

Publication number
GB2539822B
GB2539822B GB1613973.5A GB201613973A GB2539822B GB 2539822 B GB2539822 B GB 2539822B GB 201613973 A GB201613973 A GB 201613973A GB 2539822 B GB2539822 B GB 2539822B
Authority
GB
United Kingdom
Prior art keywords
variable focus
focus lenses
lenses
variable
focus
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 - Fee Related
Application number
GB1613973.5A
Other versions
GB201613973D0 (en
GB2539822A (en
Inventor
Silver Joshua
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.)
Centre For Vision In Dev World C I C
Original Assignee
Centre For Vision In Dev World C I C
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
Priority claimed from GB201400790A external-priority patent/GB201400790D0/en
Priority claimed from GB201402661A external-priority patent/GB201402661D0/en
Application filed by Centre For Vision In Dev World C I C filed Critical Centre For Vision In Dev World C I C
Publication of GB201613973D0 publication Critical patent/GB201613973D0/en
Publication of GB2539822A publication Critical patent/GB2539822A/en
Application granted granted Critical
Publication of GB2539822B publication Critical patent/GB2539822B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00028—Bifocal lenses; Multifocal lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/0048—Moulds for lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
GB1613973.5A 2014-01-17 2015-01-16 Variable focus lenses Expired - Fee Related GB2539822B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB201400790A GB201400790D0 (en) 2014-01-17 2014-01-17 A New Membrane
GB201402661A GB201402661D0 (en) 2014-02-14 2014-02-14 Variable focus lenses
PCT/GB2015/050099 WO2015107362A1 (en) 2014-01-17 2015-01-16 Method of making a flexible membrane and mold therefor, membrane and variable focus lens

Publications (3)

Publication Number Publication Date
GB201613973D0 GB201613973D0 (en) 2016-09-28
GB2539822A GB2539822A (en) 2016-12-28
GB2539822B true GB2539822B (en) 2020-10-07

Family

ID=52392154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1613973.5A Expired - Fee Related GB2539822B (en) 2014-01-17 2015-01-16 Variable focus lenses

Country Status (3)

Country Link
CN (1) CN106457706A (en)
GB (1) GB2539822B (en)
WO (1) WO2015107362A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10852553B2 (en) 2018-09-21 2020-12-01 Apple Inc. Electronic device with a tunable lens

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027912A1 (en) * 1994-04-12 1995-10-19 Lane Research Spectacles using variable focal length lenses which have an arbitrarily shaped periphery
WO2001059488A1 (en) * 2000-02-11 2001-08-16 Pietro Sgarbi Process for obtaining biquadratic optical surfaces and in particular schmidt correctors
US6288846B1 (en) * 1999-09-24 2001-09-11 Arizona Carbon Foil Co., Inc. Variable focal-length lens assembly
US20110085131A1 (en) * 2009-10-14 2011-04-14 Adlens Beacon, Inc. Aspheric Fluid Filled Lens Optic
US20110085243A1 (en) * 2009-10-13 2011-04-14 Amitava Gupta Non-Round Fluid Filled Lens Optic
US20140016087A1 (en) * 2012-07-13 2014-01-16 Amitava Gupta Fluid Lenses, Lens Blanks, and Methods of Manufacturing the Same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027912A1 (en) * 1994-04-12 1995-10-19 Lane Research Spectacles using variable focal length lenses which have an arbitrarily shaped periphery
US6288846B1 (en) * 1999-09-24 2001-09-11 Arizona Carbon Foil Co., Inc. Variable focal-length lens assembly
WO2001059488A1 (en) * 2000-02-11 2001-08-16 Pietro Sgarbi Process for obtaining biquadratic optical surfaces and in particular schmidt correctors
US20110085243A1 (en) * 2009-10-13 2011-04-14 Amitava Gupta Non-Round Fluid Filled Lens Optic
US20110085131A1 (en) * 2009-10-14 2011-04-14 Adlens Beacon, Inc. Aspheric Fluid Filled Lens Optic
US20140016087A1 (en) * 2012-07-13 2014-01-16 Amitava Gupta Fluid Lenses, Lens Blanks, and Methods of Manufacturing the Same

Also Published As

Publication number Publication date
CN106457706A (en) 2017-02-22
WO2015107362A1 (en) 2015-07-23
GB201613973D0 (en) 2016-09-28
GB2539822A (en) 2016-12-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20240116