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Domain of metamers exciting intrinsically photosensitive retinal ganglion cells (ipRGCs) and rods |
JOSA A, Vol. 29, Issue 2, pp. A366-A376 (2012)
http://dx.doi.org/10.1364/JOSAA.29.00A366
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Abstract
Any stimulus can be described as composed of two components—a fundamental color stimulus that controls the three cone responses and a metameric black that has no effect on cones but can drive photoreceptors other than cones [e.g., rods and melanopsin expressing retinal ganglion cells (ipRGCs)]. The Cohen and Kappauf [Am. J. Psychol. 95, 537 (1982)] method is extended to calculate the black metamer basis for a limited set of band spectra. Using seven colored LEDs, the method is exploited to produce real metamer illuminations that stimulate in parallel melanopsin expressing ipRGCs and rods, at most or at least. We have verified that the pupil diameter increases when the ipRGC and rod excitation is at a minimum. For 14 observers, the average relative increase is 12%.
© 2012 Optical Society of America
OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(330.1720) Vision, color, and visual optics : Color vision
(330.5310) Vision, color, and visual optics : Vision - photoreceptors
(330.1715) Vision, color, and visual optics : Color, rendering and metamerism
(330.4595) Vision, color, and visual optics : Optical effects on vision
ToC Category:
Retinal and cortical color processing
History
Original Manuscript: September 1, 2011
Revised Manuscript: December 5, 2011
Manuscript Accepted: December 9, 2011
Published: February 1, 2012
Virtual Issues
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics
Citation
Françoise Viénot, Hans Brettel, Tuong-Vi Dang, and Jean Le Rohellec, "Domain of metamers exciting intrinsically photosensitive retinal ganglion cells (ipRGCs) and rods," J. Opt. Soc. Am. A 29, A366-A376 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-2-A366
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