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Applied Optics

Applied Optics


  • Vol. 40, Iss. 32 — Nov. 10, 2001
  • pp: 5819–5824

Combination of grating lenses for color splitting and imaging

Shogo Ura, Takahiro Sasaki, and Hiroshi Nishihara  »View Author Affiliations

Applied Optics, Vol. 40, Issue 32, pp. 5819-5824 (2001)

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A pair of planar reflection gratings is proposed and discussed for use in a color-splitting and imaging system, such as a projection-type color-scanner head. Red, green, and blue light reflected from a color subject are split by a color-splitting grating lens and imaged by an image-correction grating, consisting of three segments, onto three line sensors arranged in parallel. The phase-shift function of the image-correction grating was optimized for each color by numerical iteration with the ray-tracing method to suppress aberrations resulting from the wide view angle and the three different wavelengths. Gratings were designed and fabricated, and aberration suppression was experimentally confirmed.

© 2001 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1970) Diffraction and gratings : Diffractive optics
(090.0090) Holography : Holography
(090.1000) Holography : Aberration compensation
(090.2890) Holography : Holographic optical elements
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.0230) Optical devices : Optical devices
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics

Original Manuscript: January 9, 2001
Revised Manuscript: April 13, 2001
Published: November 10, 2001

Shogo Ura, Takahiro Sasaki, and Hiroshi Nishihara, "Combination of grating lenses for color splitting and imaging," Appl. Opt. 40, 5819-5824 (2001)

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