title: Absorption of light in photoreceptors: transverse incidence.
abstract: The time variation of the absorption rate (i.e., the number of photons absorbed per see) in a photoreceptor when light is incident perpendicular to its axis has been studied for various species and different conditions. Due to the cylindrical geometry of the photoreceptor the expressions for the absorption rates become very complicated. Hence, simple approximate expressions for the absorption rates in the case of some of the species have been suggested. The present analysis will be useful in analysing the mechanism of the photoreceptor when light is incident perpendicular to the axis.
mesh_terms: D000818:Animals; D001001:Anura; D002417:Cattle; D006801:Humans; D008027:Light; D008954:Models, Biological; D010786:Photoreceptor Cells / Q000502:physiology*; D013696:Temperature; D013997:Time Factors