Pay in 4 interest-free payments of $27.38 Learn more
Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
00 D Axis 1° to 180° Cylinder Form −
Unlike traditional applanation tonometry
Blue: RA546-3
content creation
INS-11113 | Blue Light Tester Hand-Held 00 D Axis 1° toThe 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,