Books > Science & Mathematics > Physics > Applied physics & special topics > Biophysics
|
Buy Now
Photoreceptor Optics (Paperback, Softcover reprint of the original 1st ed. 1975)
Loot Price: R2,880
Discovery Miles 28 800
|
|
Photoreceptor Optics (Paperback, Softcover reprint of the original 1st ed. 1975)
Expected to ship within 10 - 15 working days
|
The 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 not
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 retinol-based pigments
and between 438 and 620 nm for 3-dehydroretinol-based pigments, the
position of Amax de pending on many ecological factors."
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
|
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.