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AU2001240912A1 - Optical instrument and optical element providing expanded exit pupil - Google Patents

Optical instrument and optical element providing expanded exit pupil

Info

Publication number
AU2001240912A1
AU2001240912A1 AU2001240912A AU4091201A AU2001240912A1 AU 2001240912 A1 AU2001240912 A1 AU 2001240912A1 AU 2001240912 A AU2001240912 A AU 2001240912A AU 4091201 A AU4091201 A AU 4091201A AU 2001240912 A1 AU2001240912 A1 AU 2001240912A1
Authority
AU
Australia
Prior art keywords
optical
instrument
exit pupil
optical instrument
element providing
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.)
Abandoned
Application number
AU2001240912A
Inventor
Graham Mercer
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.)
Vision Engr Ltd
Original Assignee
Vision Engr Ltd
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 Vision Engr Ltd filed Critical Vision Engr Ltd
Publication of AU2001240912A1 publication Critical patent/AU2001240912A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/44—Grating systems; Zone plate systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Lenses (AREA)
  • Microscoopes, Condenser (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Lasers (AREA)

Abstract

The invention provides an optical instrument including means ( 1, 2 ) to produce an optical image to be viewed by an observer including a diffractive element ( 7 ) located at an intermediate focal or image plane ( 4 ) of the optical instrument and comprising a pattern of a plurality of areas effective to cause diffraction interference in light passing through the optical instrument and thereby produce an expanded exit pupil ( 6 ) comprising a combination of a multiplicity of exit pupils displaced relative to one another transverse to an optical axis ( 3 ) of said instrument.
AU2001240912A 2000-03-20 2001-03-20 Optical instrument and optical element providing expanded exit pupil Abandoned AU2001240912A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0006725 2000-03-20
GB0006725A GB2360604A (en) 2000-03-20 2000-03-20 Diffractive optical element
PCT/GB2001/001222 WO2001071412A1 (en) 2000-03-20 2001-03-20 Optical instrument and optical element providing expanded exit pupil

Publications (1)

Publication Number Publication Date
AU2001240912A1 true AU2001240912A1 (en) 2001-10-03

Family

ID=9888027

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001240912A Abandoned AU2001240912A1 (en) 2000-03-20 2001-03-20 Optical instrument and optical element providing expanded exit pupil

Country Status (13)

Country Link
US (1) US7123415B2 (en)
EP (1) EP1266257B1 (en)
JP (1) JP4768194B2 (en)
KR (1) KR100788054B1 (en)
AT (1) ATE297024T1 (en)
AU (1) AU2001240912A1 (en)
CA (1) CA2403569C (en)
DE (1) DE60111198T2 (en)
ES (1) ES2245351T3 (en)
GB (1) GB2360604A (en)
HK (1) HK1048850B (en)
PT (1) PT1266257E (en)
WO (1) WO2001071412A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4655263B2 (en) * 2004-08-12 2011-03-23 ブラザー工業株式会社 Image display device and plate-like reflection element thereof
JP4589169B2 (en) * 2005-04-28 2010-12-01 シャープ株式会社 Multi-beam optical distance sensor, self-propelled vacuum cleaner and air conditioner equipped with the same
GB2464953A (en) * 2008-10-30 2010-05-05 Vision Eng Optical instrument comprising an arrangement to increase the exit pupil size.
EP2720077A1 (en) 2012-10-12 2014-04-16 Vision Engineering Limited Optical objective with enlargement of the exit pupil by means of a diffractive element
EP2720072A1 (en) * 2012-10-12 2014-04-16 Vision Engineering Limited Optical instrument with diffractive element
US9910276B2 (en) 2015-06-30 2018-03-06 Microsoft Technology Licensing, Llc Diffractive optical elements with graded edges
US10670862B2 (en) 2015-07-02 2020-06-02 Microsoft Technology Licensing, Llc Diffractive optical elements with asymmetric profiles
US9864208B2 (en) 2015-07-30 2018-01-09 Microsoft Technology Licensing, Llc Diffractive optical elements with varying direction for depth modulation
US10038840B2 (en) 2015-07-30 2018-07-31 Microsoft Technology Licensing, Llc Diffractive optical element using crossed grating for pupil expansion
US10073278B2 (en) 2015-08-27 2018-09-11 Microsoft Technology Licensing, Llc Diffractive optical element using polarization rotation grating for in-coupling
US10429645B2 (en) 2015-10-07 2019-10-01 Microsoft Technology Licensing, Llc Diffractive optical element with integrated in-coupling, exit pupil expansion, and out-coupling
US10241332B2 (en) 2015-10-08 2019-03-26 Microsoft Technology Licensing, Llc Reducing stray light transmission in near eye display using resonant grating filter
US10234686B2 (en) 2015-11-16 2019-03-19 Microsoft Technology Licensing, Llc Rainbow removal in near-eye display using polarization-sensitive grating
US10108014B2 (en) * 2017-01-10 2018-10-23 Microsoft Technology Licensing, Llc Waveguide display with multiple focal depths

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453035A (en) * 1963-11-04 1969-07-01 Diffraction Ltd Inc Optical system with diffraction grating screen
US5161059A (en) * 1987-09-21 1992-11-03 Massachusetts Institute Of Technology High-efficiency, multilevel, diffractive optical elements
US4878735A (en) * 1988-01-15 1989-11-07 Lookingglass Technology, Inc. Optical imaging system using lenticular tone-plate elements
US5046793A (en) * 1989-05-26 1991-09-10 Litton Systems, Inc. Chromatically corrected directional diffusing screen
JP2987016B2 (en) * 1992-08-28 1999-12-06 松下電器産業株式会社 Phase grating optical low-pass filter
GB9310077D0 (en) 1993-05-17 1993-06-30 Freeman Robin J Optical instrument
US6028704A (en) 1993-05-17 2000-02-22 Freeman; Robin John Optical instrument and optical element thereof
EP0886802B1 (en) * 1996-03-15 2001-11-21 Retinal Display Cayman Ltd. Method of and apparatus for viewing an image
US5701132A (en) * 1996-03-29 1997-12-23 University Of Washington Virtual retinal display with expanded exit pupil
US6608720B1 (en) * 1997-06-02 2003-08-19 Robin John Freeman Optical instrument and optical element thereof
DE69941684D1 (en) * 1999-06-02 2010-01-07 Robin John Freeman Optical instrument and optical element for it

Also Published As

Publication number Publication date
CA2403569C (en) 2011-05-24
ES2245351T3 (en) 2006-01-01
EP1266257B1 (en) 2005-06-01
HK1048850A1 (en) 2003-04-17
DE60111198D1 (en) 2005-07-07
ATE297024T1 (en) 2005-06-15
EP1266257A1 (en) 2002-12-18
US20030025999A1 (en) 2003-02-06
KR20030019321A (en) 2003-03-06
US7123415B2 (en) 2006-10-17
HK1048850B (en) 2006-01-13
JP2003528350A (en) 2003-09-24
KR100788054B1 (en) 2007-12-21
GB2360604A (en) 2001-09-26
PT1266257E (en) 2005-11-30
DE60111198T2 (en) 2006-05-04
JP4768194B2 (en) 2011-09-07
WO2001071412A1 (en) 2001-09-27
CA2403569A1 (en) 2001-09-27
GB0006725D0 (en) 2000-05-10

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