QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

Help viewing high resolution images Return to article

Fig. 5. Absorption spectra for different states of light adaptation, given by the pupil distance, h (Fig. 4A, inset). At all wavelengths, a uniform light source with radiance 1 W sr^-1 µm^-2 illuminates a 25 µm facet lens (F=2.2) with, in its focal plane, the distal end of a rhabdomere with diameter 2.0 µm. (A) Pure rhodopsin (R). Pupil closure causes an overall reduced absorption spectrum. (B) One sensitizing pigment molecule per rhodopsin (R+S). A distinct UV peak remains upon pupil closure. (C) Two sensitizing pigment molecules per rhodopsin (R+2S). The UV peak is only slightly higher than that in B due to self-screening.

Return to article