Field-of-View extender for a novel camera system

Se Hoon Lim, Raymond K. Kostuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper the use of a blazed holographic grating extends the filed of view (FoV) of a thin camera system. A blazed grating is designed to shift the center of the object field 10° from the axis. The designed blazed grating provides 69% maximum diffraction efficiency (DE) in the primary order over a 15° FoV. High diffraction efficiency is maintained over a wavelength range from 457.8 to 632.9 nm. The holographic blazed grating is fabricated in photoresist on a 1.5 mm thick glass substrate, index matching with a prism. The prism helps to make an adequate profile of the blazed grating. Experimental results confirm that the center in the object field is successfully shifted by the blazed grating for the FoV extender. This technique can be used to increase the numerical aperture (NA) of various optical systems.

Original languageEnglish (US)
Title of host publicationPractical Holography XXI
Subtitle of host publicationMaterials and Applications
DOIs
StatePublished - May 24 2007
EventPractical Holography XXI: Materials and Applications - San Jose, CA, United States
Duration: Jan 21 2007Jan 24 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6488
ISSN (Print)0277-786X

Other

OtherPractical Holography XXI: Materials and Applications
CountryUnited States
CitySan Jose, CA
Period1/21/071/24/07

Keywords

  • Blazed holographic gratings
  • Imaging systems

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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