SG10201807071TA - An optical interference device - Google Patents

An optical interference device

Info

Publication number
SG10201807071TA
SG10201807071TA SG10201807071TA SG10201807071TA SG10201807071TA SG 10201807071T A SG10201807071T A SG 10201807071TA SG 10201807071T A SG10201807071T A SG 10201807071TA SG 10201807071T A SG10201807071T A SG 10201807071TA SG 10201807071T A SG10201807071T A SG 10201807071TA
Authority
SG
Singapore
Prior art keywords
optical
light
interference device
optical interference
phase shifter
Prior art date
Application number
SG10201807071TA
Inventor
Sascha Pierre Heussler
Herbert Oskar Moser
Alok Pathak
Original Assignee
Nat Univ Singapore
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 Nat Univ Singapore filed Critical Nat Univ Singapore
Publication of SG10201807071TA publication Critical patent/SG10201807071TA/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/45—Interferometric spectrometry
    • G01J3/453—Interferometric spectrometry by correlation of the amplitudes
    • G01J3/4531—Devices without moving parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0229—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0272—Handheld

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Focusing (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)

Abstract

32 AN OPTICAL INTERFERENCE DEVICE An optical interference device 100 is disclosed herein. In a described embodiment, the optical interference device 100 comprises a phase shifter array 108 for receiving a collimated beam of light. The phase shifter array 108 includes an array of cells 128 for producing optical light channels from 10 respective rays of the collimated beam of light, with at least some of the optical light channels having varying phase shifts. The optical interference device 100 further includes a focusing lens 110 having a focal distance and arranged to simultaneously produce, from the optical light channels, a focused beam of light in its focal plane and an image downstream the phase shifter array 108 for 15 detection by an optical detector 116. The optical interference device 100 also includes an optical spatial filter 112 arranged at the focal distance of the focusing lens 110 and arranged to filter the focused beam of light to produce a spatially distributed interference light pattern in zeroth order for detection by the optical detector 116. A method for producing a spatially distributed interference 20 light pattern is also disclosed. Figure 1 25
SG10201807071TA 2014-03-13 2015-03-12 An optical interference device SG10201807071TA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201461952583P 2014-03-13 2014-03-13

Publications (1)

Publication Number Publication Date
SG10201807071TA true SG10201807071TA (en) 2018-09-27

Family

ID=54072172

Family Applications (2)

Application Number Title Priority Date Filing Date
SG10201807071TA SG10201807071TA (en) 2014-03-13 2015-03-12 An optical interference device
SG11201607441TA SG11201607441TA (en) 2014-03-13 2015-03-12 An optical interference device

Family Applications After (1)

Application Number Title Priority Date Filing Date
SG11201607441TA SG11201607441TA (en) 2014-03-13 2015-03-12 An optical interference device

Country Status (7)

Country Link
US (2) US10760971B2 (en)
EP (1) EP3117191A4 (en)
JP (1) JP6513697B2 (en)
KR (1) KR102381930B1 (en)
SG (2) SG10201807071TA (en)
TW (1) TWI670483B (en)
WO (1) WO2015137880A1 (en)

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Also Published As

Publication number Publication date
US10760971B2 (en) 2020-09-01
WO2015137880A1 (en) 2015-09-17
JP6513697B2 (en) 2019-05-15
KR102381930B1 (en) 2022-04-04
KR20160132936A (en) 2016-11-21
TW201538958A (en) 2015-10-16
JP2017508160A (en) 2017-03-23
TWI670483B (en) 2019-09-01
EP3117191A4 (en) 2018-03-28
US20210123809A1 (en) 2021-04-29
EP3117191A1 (en) 2017-01-18
US20170016770A1 (en) 2017-01-19
SG11201607441TA (en) 2016-10-28

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