This correspondence held for luminance modulation over a thousand-fold range of retinal illuminance.
2
At low retinal illuminance levels, the cells' responses were determined by rod and cone inputs.
3
In the present paper, we quantify rod and cone input strengths under different retinal illuminance levels.
4
On changing retinal illuminance, the amplitude of the physiological and psychophysical phase shifts also changed in a parallel manner.
5
It measures the luminous intensity (at least that's what I call it but others call it the illuminance).
6
The relative strength of rod signals relative to the L-cone signals increased with increasing retinal eccentricity and decreasing retinal illuminance.
7
However, there was a relative decrease in the observation illuminance when the filter inserted according to the attenuation total spectral irradiance.
8
The design of an axisymmetrical refractive optical element transforming a given incident beam into an output beam with prescribed illuminance distribution and wavefront is considered.
9
With increasing illuminances the strength of the cone input increased relative to the rod strength.
10
But, we often found significant rod inputs up to illuminances equivalent to 700 td in the human eye or more.
11
At 20 degrees eccentricity, rod and cone signals were of about equal magnitude at retinal illuminances as high as 470 td.