SNR analysis of the stripe illuminator based on linear emitter and cylindrical lens against solar irradiance

László Domján, László Kocsányi, P. Richter, Éva Jeszenszky

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Achieving good signal-to-noise ratio (SNR) against solar illumination is a basic requirement for the light source of active vision sensors in outdoor applications. The article examines the high power stripe-lighting setup, constructed with a cylindrical lens and a rectangular emitting source placed at the focal line of the lens. This source type is capable of illuminating a very high total power because of the large surface size of the emitter; thus it is advantageous for outdoor applications. A detailed radiometric analysis of this setup is presented resulting in an integral for the calculation of the spatial irradiance distribution within the stripe. The achievable SNRs against solar illumination are calculated by applying the radiometric integral for different rectangular emitters built of LED arrays, laser diode arrays and incandescent sources. The article proposes stripe illuminators applying all the analyzed emitter types that are suitable for operation in direct sunshine.

Original languageEnglish
Pages (from-to)201-223
Number of pages23
JournalOptics and Lasers in Engineering
Volume40
Issue number3
DOIs
Publication statusPublished - Sep 2003

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illuminators
irradiance
Lenses
Signal to noise ratio
emitters
signal to noise ratios
Lighting
lenses
illuminating
illumination
Spatial distribution
Light emitting diodes
Light sources
Semiconductor lasers
light sources
light emitting diodes
semiconductor lasers
requirements
sensors
Sensors

Keywords

  • Active vision
  • Cylindrical lens
  • LED-array
  • Outdoor measurement
  • Radiometry
  • Stripe illuminator

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

SNR analysis of the stripe illuminator based on linear emitter and cylindrical lens against solar irradiance. / Domján, László; Kocsányi, László; Richter, P.; Jeszenszky, Éva.

In: Optics and Lasers in Engineering, Vol. 40, No. 3, 09.2003, p. 201-223.

Research output: Contribution to journalArticle

Domján, László ; Kocsányi, László ; Richter, P. ; Jeszenszky, Éva. / SNR analysis of the stripe illuminator based on linear emitter and cylindrical lens against solar irradiance. In: Optics and Lasers in Engineering. 2003 ; Vol. 40, No. 3. pp. 201-223.
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