Knife Edge Diffraction for Spatially Extended Light Sources

Christian Mentin, Eugen Brenner

Research output: Contribution to conference(Old data) Lecture or PresentationResearchpeer-review

Abstract

The position of an object’s edge can be
determined from its shadow projected onto a CCD or
CMOS sensor without any additional optical elements
such as lenses. Nevertheless, in many applications a
collimated Laser light beam is used to illuminate the
measured object. Since laser diodes are often
complicated in handling, and mostly need additional
expensive Laser driver hardware, new approaches
were considered. Spatially extended light sources such
as off-the-shelf LEDs could be used for edge detection
in combination with diffraction pattern analysis,
without the need of any additional collimation optics
for illumination. Results and applicability for simple
position measurement are discussed.

Conference

Conference21ST IMEKO TC-4 INTERNATIONAL SYMPOSIUM ON UNDERSTANDING THE WORLD THROUGH ELECTRICAL AND ELECTRONIC MEASUREMENT
CountryHungary
CityBudapest
Period7/09/169/09/16

Fingerprint

light sources
edge detection
collimation
shelves
diffraction
light beams
charge coupled devices
CMOS
hardware
light emitting diodes
diffraction patterns
semiconductor lasers
illumination
lenses
laser beams
optics
sensors
lasers

Keywords

  • CCD Sensor
  • Knife Edge Diffraction

Cite this

Mentin, C., & Brenner, E. (2016). Knife Edge Diffraction for Spatially Extended Light Sources. 134-139. 21ST IMEKO TC-4 INTERNATIONAL SYMPOSIUM ON UNDERSTANDING THE WORLD THROUGH ELECTRICAL AND ELECTRONIC MEASUREMENT, Budapest, Hungary.

Knife Edge Diffraction for Spatially Extended Light Sources. / Mentin, Christian; Brenner, Eugen.

2016. 134-139 21ST IMEKO TC-4 INTERNATIONAL SYMPOSIUM ON UNDERSTANDING THE WORLD THROUGH ELECTRICAL AND ELECTRONIC MEASUREMENT, Budapest, Hungary.

Research output: Contribution to conference(Old data) Lecture or PresentationResearchpeer-review

Mentin, C & Brenner, E 2016, 'Knife Edge Diffraction for Spatially Extended Light Sources' 21ST IMEKO TC-4 INTERNATIONAL SYMPOSIUM ON UNDERSTANDING THE WORLD THROUGH ELECTRICAL AND ELECTRONIC MEASUREMENT, Budapest, Hungary, 7/09/16 - 9/09/16, pp. 134-139.
Mentin C, Brenner E. Knife Edge Diffraction for Spatially Extended Light Sources. 2016. 21ST IMEKO TC-4 INTERNATIONAL SYMPOSIUM ON UNDERSTANDING THE WORLD THROUGH ELECTRICAL AND ELECTRONIC MEASUREMENT, Budapest, Hungary.
Mentin, Christian ; Brenner, Eugen. / Knife Edge Diffraction for Spatially Extended Light Sources. 21ST IMEKO TC-4 INTERNATIONAL SYMPOSIUM ON UNDERSTANDING THE WORLD THROUGH ELECTRICAL AND ELECTRONIC MEASUREMENT, Budapest, Hungary.6 p.
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title = "Knife Edge Diffraction for Spatially Extended Light Sources",
abstract = "The position of an object’s edge can bedetermined from its shadow projected onto a CCD orCMOS sensor without any additional optical elementssuch as lenses. Nevertheless, in many applications acollimated Laser light beam is used to illuminate themeasured object. Since laser diodes are oftencomplicated in handling, and mostly need additionalexpensive Laser driver hardware, new approacheswere considered. Spatially extended light sources suchas off-the-shelf LEDs could be used for edge detectionin combination with diffraction pattern analysis,without the need of any additional collimation opticsfor illumination. Results and applicability for simpleposition measurement are discussed.",
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AU - Mentin,Christian

AU - Brenner,Eugen

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N2 - The position of an object’s edge can bedetermined from its shadow projected onto a CCD orCMOS sensor without any additional optical elementssuch as lenses. Nevertheless, in many applications acollimated Laser light beam is used to illuminate themeasured object. Since laser diodes are oftencomplicated in handling, and mostly need additionalexpensive Laser driver hardware, new approacheswere considered. Spatially extended light sources suchas off-the-shelf LEDs could be used for edge detectionin combination with diffraction pattern analysis,without the need of any additional collimation opticsfor illumination. Results and applicability for simpleposition measurement are discussed.

AB - The position of an object’s edge can bedetermined from its shadow projected onto a CCD orCMOS sensor without any additional optical elementssuch as lenses. Nevertheless, in many applications acollimated Laser light beam is used to illuminate themeasured object. Since laser diodes are oftencomplicated in handling, and mostly need additionalexpensive Laser driver hardware, new approacheswere considered. Spatially extended light sources suchas off-the-shelf LEDs could be used for edge detectionin combination with diffraction pattern analysis,without the need of any additional collimation opticsfor illumination. Results and applicability for simpleposition measurement are discussed.

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