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LED illumination with natural color temperature and homogeneous lighting
Brown: RA442-3
These features help increase consistency
these sleek frames made of TR-90 provide maximum protection against harmful UV400 rays
Dimensions: 4 in / 10 cm
INS-11113 | Blue Light Tester Hand-Held LED illumination with natural colorThe testing principle uses four different wavelength light sources in the table below to irradiate the transparent substance under test. The sensor detects the intensity of the same light source passing through the transparent substance under and the incident intensity. The ratio of the two is used as the transmittance, which is displayed as a percentage. Mainly used for testing the optical performance of transparent materials for eyeglass lenses,
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