T
- telemicroscope
- terms relating to transmission, reflection and coatings
- terrestrial telescope
- test stimulus
- test stimulus pattern
- test tonometer
- threshold differential luminance, DLT
- threshold stimulus luminance, LT
- Threshold strategy
- tinted lens
- toric lens
- toroidal surface
- tracer
- trademark
- transmittance in the infrared A
- transmittance in the infrared B
- transmittance in the solar infrared spectrum
- transmittance in the solar ultraviolet A spectrum (SUVA)
- transmittance in the solar ultraviolet B spectrum (SUVB)
- transposition
- trial case lens
- trial frame
- trifocal lens
transmittance in the solar ultraviolet B spectrum (SUVB)
Mean of the spectral transmittance between 280nm and 315nm, weighted by the solar radiation distribution Esl(l) at sea level, for air mass 2, and the relative spectral effectiveness function for UV radiation S(l).