The phrase "at different illumination" is correct and usable in written English.
It can be used when discussing varying levels or types of light in a context such as photography, art, or scientific observations.
Example: "The painting appears to have different colors at different illumination, revealing hidden details."
Alternatives: "under varying light" or "at varying brightness".
We calculated the power losses of both grid patterns at different illumination levels.
The use of 4 cm2 SHJ cells for low-concentration applications was investigated at different illumination levels and temperatures.
A systematic study of crystalline silicon solar cells is done using impedance spectroscopy under forward bias conditions and at different illumination levels.
As shown in Fig. 3h, light irradiation can act as an independent parameter for regulating the output current of the OPTs at different illumination intensities (VDS = −100 V, VGS = 0 V).
While those characteristics can't easily be measured directly in the samples, the researchers could use a standard set of equations to infer them based on lifetime measurements taken at different illumination intensities and test temperatures.
To compare contrast acuity at different illumination levels and color vision and the subjective impression in patients after bilateral cataract surgery with a mixed implantation of a blue-light-filtering and an ultraviolet (UV -filtering intraocUV -filteringL).
For these reasons, the macroscopic (normalized) voltage responses to light contrasts are highly similar at different illuminations [see also: 26], capturing the temporal pattern in the image sequences, as projected by the lens system of a fly in motion [ 1].
Accordingly we measured the TL B band signal intensity and maximal O2 evolution as affected by 17 min of illumination at different light intensities.
To further assure the results, we measured directly the efficiency of the solar cells containing an active layer of TiO2 only at two different illumination intensities: 37.38 W/m2 and 213 W/m213
The measurement of the contour of the sample is obtained by subtracting the phase of the two holograms acquired at two different illumination positions, as described above.
Items at the store are viewed under different illumination and surrounded by different surfaces than they are at home.
