GB2154756B - Refractive optical element - Google Patents

Refractive optical element

Info

Publication number
GB2154756B
GB2154756B GB08502875A GB8502875A GB2154756B GB 2154756 B GB2154756 B GB 2154756B GB 08502875 A GB08502875 A GB 08502875A GB 8502875 A GB8502875 A GB 8502875A GB 2154756 B GB2154756 B GB 2154756B
Authority
GB
United Kingdom
Prior art keywords
optical element
refractive optical
refractive
optical
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
GB08502875A
Other versions
GB8502875D0 (en
GB2154756A (en
Inventor
William Edwin Humphrey
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.)
Humphrey Instruments Inc
Original Assignee
Humphrey Instruments Inc
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 Humphrey Instruments Inc filed Critical Humphrey Instruments Inc
Publication of GB8502875D0 publication Critical patent/GB8502875D0/en
Publication of GB2154756A publication Critical patent/GB2154756A/en
Application granted granted Critical
Publication of GB2154756B publication Critical patent/GB2154756B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
    • A61B3/1035—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes for measuring astigmatism
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal lenses
GB08502875A 1980-10-31 1985-02-05 Refractive optical element Expired GB2154756B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20253680A 1980-10-31 1980-10-31

Publications (3)

Publication Number Publication Date
GB8502875D0 GB8502875D0 (en) 1985-03-06
GB2154756A GB2154756A (en) 1985-09-11
GB2154756B true GB2154756B (en) 1986-05-21

Family

ID=22750296

Family Applications (3)

Application Number Title Priority Date Filing Date
GB8132816A Expired GB2086609B (en) 1980-10-31 1981-10-30 Objective refractor for the eye
GB08232428A Expired GB2112543B (en) 1980-10-31 1982-11-12 Objective refractor for the eye
GB08502875A Expired GB2154756B (en) 1980-10-31 1985-02-05 Refractive optical element

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB8132816A Expired GB2086609B (en) 1980-10-31 1981-10-30 Objective refractor for the eye
GB08232428A Expired GB2112543B (en) 1980-10-31 1982-11-12 Objective refractor for the eye

Country Status (6)

Country Link
JP (1) JPS57131423A (en)
AU (1) AU553164B2 (en)
CA (1) CA1171706A (en)
CH (2) CH664888A5 (en)
DE (1) DE3143162A1 (en)
GB (3) GB2086609B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5985641A (en) * 1982-11-06 1984-05-17 株式会社トプコン Apparatus for measuring refractive index
JPS6185919A (en) * 1984-10-02 1986-05-01 株式会社トプコン Eye examination apparatus
DE4335244B4 (en) * 1993-10-15 2006-10-19 Daimlerchrysler Ag Arrangement for image recording
FR2714246B1 (en) * 1993-12-20 1996-01-12 Blanc Herve Joseph Method and system for determining the two-dimensional characteristic function of a photosensitive cell.
DE19635942A1 (en) * 1996-09-05 1998-03-12 Vitaly Dr Lissotschenko Optical beam shaping system
DE10104317C2 (en) * 2001-01-25 2003-04-30 4D Vision Gmbh lens assembly
DE10139355A1 (en) * 2001-08-17 2003-02-27 Lissotschenko Vitalij Arrangement and device for optical beam homogenization
DE10153397A1 (en) * 2001-11-01 2003-05-15 Plusoptix Ag Device and method for measuring refraction
DE10335271A1 (en) * 2003-08-01 2005-02-17 Hentze-Lissotschenko Patentverwaltungs Gmbh & Co.Kg Beam shaping device
DE10336957A1 (en) * 2003-08-07 2005-02-24 Hentze-Lissotschenko Patentverwaltungs Gmbh & Co.Kg Optical array to focus a light beam has a second group of lenses through which the light is directed at a first group of lenses
DE102004020250A1 (en) * 2004-04-26 2005-11-10 Hentze-Lissotschenko Patentverwaltungs Gmbh & Co. Kg Apparatus and method for optical beam homogenization
JP5124864B2 (en) 2006-06-07 2013-01-23 本田技研工業株式会社 Optical device and moving device
CN109222886B (en) * 2018-11-16 2024-04-12 苏州巨目光学科技有限公司 Diopter adjustable regulating eye
CN116058786B (en) * 2023-03-06 2023-07-07 北京鹰瞳科技发展股份有限公司 Method and device for determining fundus refraction topography, electronic equipment and storage medium

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1772567C3 (en) * 1968-06-04 1981-07-16 Agfa-Gevaert Ag, 5090 Leverkusen Method and device for the production of lens grids
GB1327231A (en) * 1970-01-07 1973-08-15 Nat Res Dev Fire detecting apparatus
US3641255A (en) * 1970-04-17 1972-02-08 Rca Corp Noninteracting lens system for a color encoding camera
GB1300300A (en) * 1970-10-15 1972-12-20 Alfred George Torr Improvements in and relating to screens used in photomechanical reproduction
NL7106346A (en) * 1971-05-08 1972-11-10
GB1377558A (en) * 1972-05-24 1974-12-18 Ferraris C Light producing signal device
JPS6049500B2 (en) * 1974-03-06 1985-11-02 ハンフリー・インストルメンツ・インコーポレーテツド Astigmatism effect variable device
US4070115A (en) * 1976-03-26 1978-01-24 Humphrey Instruments, Inc. Lens meter
JPS5469455A (en) * 1977-11-14 1979-06-04 Tokyo Optical Device for measuring astigmatism axis and refracting power
JPS5470688A (en) * 1977-11-16 1979-06-06 Nippon Chemical Ind Device for measuring eye refracting power
JPS55125844A (en) * 1979-03-20 1980-09-29 Canon Kk Optic refractometer

Also Published As

Publication number Publication date
GB8502875D0 (en) 1985-03-06
GB2112543B (en) 1985-05-22
DE3143162C2 (en) 1988-04-21
CA1171706A (en) 1984-07-31
GB2086609B (en) 1985-05-22
AU7681981A (en) 1982-05-06
AU553164B2 (en) 1986-07-03
GB2112543A (en) 1983-07-20
GB2154756A (en) 1985-09-11
JPS6331214B2 (en) 1988-06-22
JPS57131423A (en) 1982-08-14
DE3143162A1 (en) 1982-07-29
CH664888A5 (en) 1988-04-15
GB2086609A (en) 1982-05-12
CH661198A5 (en) 1987-07-15

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Legal Events

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

Effective date: 19941030