Photoreceptor Optics by Springer-Verlag Berlin and Heidelberg GmbH & Co. KG (Paperback, 2012)
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- DescriptionThe above consideration indicates that at present many of the experi- mental facts on PS in animals can be quantitatively explained within the limits of the universal photoreceptor membrane concept. Of course, existence of preferential orientation of the absorbing dipoles in the tubuli of the rhabdomeres can t be totally rejected. We hope that the concept of the universal photoreceptor membrane may serve as the useful instrument when dealing with newly discovered properties of visual cells so that true mechanisms of electrical and optical coupling will be searched for instead of assumptions being made on additional properties of the photoreceptor membrane in every new animal under study. 5. Absorption Spectrum of the Universal Photoreceptor Membrane and Spectral Sensitivity of the Photoreceptor 5. 1 Preliminary Notes It seems nearly self-evident that the absorption spectrum of the pho- toreceptor membrane coincides exactly with that of the visual pigment it contains. Hence, the membrane must exhibit three bands of absorp- tion - the principal band with its peak within the limits of visible spectrum (or a-peak); the secondary band between 340 and 380 nm (S- peak); and the third, protein band, in the ultraviolet (UV) at 280 nm (COLLINS et al. , 1952). The main peak of absorption is located within the range 433-575 nm for retil-based pigments and between 438 and 620 nm for 3-dehydroretil-based pigments, the position of Amax de- pending on many ecological factors.
- PublisherSpringer-Verlag Berlin and Heidelberg GmbH & Co. KG
- Date of Publication10/01/2012
- Place of PublicationBerlin
- Country of PublicationGermany
- ImprintSpringer-Verlag Berlin and Heidelberg GmbH & Co. K
- Content Noteblack & white illustrations, bibliography
- Weight919 g
- Width170 mm
- Height244 mm
- Spine28 mm
- Edited byA. W. Snyder,Randolf Menzel
- Edition StatementSoftcover reprint of the original 1st ed. 1975
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