For repeatable real-time transmittance measurement of ophthalmic lenses and optical coatings, filters, glass and windows, Ocean Optics Inc. has introduced a compact optical transmittance spectrometer that characterizes tint color, photopic transmittance and UV cutoff. It is built on a high-resolution miniature linear CCD-array spectrometer configured for the 380- to 780-nm range. The system accepts samples from 10 to 76 mm in diameter and to 15 mm in thickness. A 20-W tungsten halogen light source provides stable, continuous output, and high-resolution optics provide beam collimation.

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