GB201215686D0 - A reduced noise optical device - Google Patents

A reduced noise optical device

Info

Publication number
GB201215686D0
GB201215686D0 GBGB1215686.5A GB201215686A GB201215686D0 GB 201215686 D0 GB201215686 D0 GB 201215686D0 GB 201215686 A GB201215686 A GB 201215686A GB 201215686 D0 GB201215686 D0 GB 201215686D0
Authority
GB
United Kingdom
Prior art keywords
optical device
reduced noise
noise optical
reduced
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.)
Granted
Application number
GBGB1215686.5A
Other versions
GB2507467A (en
GB2507467B (en
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.)
Two Trees Photonics Ltd
Original Assignee
Two Trees Photonics 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 Two Trees Photonics Ltd filed Critical Two Trees Photonics Ltd
Priority to GB1215686.5A priority Critical patent/GB2507467B/en
Publication of GB201215686D0 publication Critical patent/GB201215686D0/en
Publication of GB2507467A publication Critical patent/GB2507467A/en
Application granted granted Critical
Publication of GB2507467B publication Critical patent/GB2507467B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2294—Addressing the hologram to an active spatial light modulator
    • 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
    • G02B27/46—Systems using spatial filters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters
    • G06V10/89—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters using frequency domain filters, e.g. Fourier masks implemented on spatial light modulators
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H2001/0066—Adaptation of holography to specific applications for wavefront matching wherein the hologram is arranged to convert a predetermined wavefront into a comprehensive wave, e.g. associative memory
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2202—Reconstruction geometries or arrangements
    • G03H2001/2244—Means for detecting or recording the holobject
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
    • G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
    • G06E3/001—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
    • G06E3/003—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions
GB1215686.5A 2012-09-03 2012-09-03 A reduced noise optical device Active GB2507467B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1215686.5A GB2507467B (en) 2012-09-03 2012-09-03 A reduced noise optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1215686.5A GB2507467B (en) 2012-09-03 2012-09-03 A reduced noise optical device

Publications (3)

Publication Number Publication Date
GB201215686D0 true GB201215686D0 (en) 2012-10-17
GB2507467A GB2507467A (en) 2014-05-07
GB2507467B GB2507467B (en) 2020-01-15

Family

ID=47075175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1215686.5A Active GB2507467B (en) 2012-09-03 2012-09-03 A reduced noise optical device

Country Status (1)

Country Link
GB (1) GB2507467B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2574823B (en) 2018-06-18 2021-03-17 Dualitas Ltd A holographic projector and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9726386D0 (en) * 1997-12-12 1998-02-11 Univ Cambridge Tech Optical correlator
GB201102715D0 (en) * 2011-02-16 2011-03-30 Cambridge Entpr Ltd Apparatus and methods

Also Published As

Publication number Publication date
GB2507467A (en) 2014-05-07
GB2507467B (en) 2020-01-15

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20170817 AND 20170823