This style was so desired that the director of photography, David Boyd, sent back the cutting-edge lenses which reduced lens flare in exchange for cheaper ones.
Reduced lens growth and abnormal lens fiber cell differentiation were also found at day E15.5.
In the postnatal Brg1 mutants (P1 and P7 stages), reduced lens size and other abnormalities, including retinal misfolding, persisted.
In the three adult Sinocyclocheilus fishes in this study, Sg has normal-sized eyes with a lens and retinal structures; Sr has small eyes with a reduced lens and retinal cell density; and Sa has lost its external eyeballs and lens, and the retina has degenerated to become merely disorganized and indistinguishable cellular layers (Fig. 3).
Previous studies have shown that a doublet system offers several advantages over a triplet system such as similar fields of view at reduced lens cost, greater image magnification, lower NA for coupling the laser beam, and lower autofluorescence at the endoscope surface [ 21].
However, some designs maximize oxygen transmission by reducing the lens diameter, thickness, and recommended corneal clearance.While the modifications increase oxygen transmission in any scleral lens design, they also distribute the lens mass closer to the limbus and make visualization of corneal clearance, especially narrow in the limbal region, more difficult.
A variable shutter opening can also be used to reduce exposure when it is necessary or desirable to do this without reducing the lens aperture.
A more robust mechanical design, the new nylon frame features wide side temples and a shelf along the top edge of the frames, which help prevent extraneous light from entering the glasses, reducing internal lens reflections.
A 2 1 reducing two-lens telescope in front of each photomultiplier tube increases the sensitive area at the expense of increased pixel size, resulting in a contribution to the resolution which roughly matches that of dispersion.
