Figure 1
(a) Optical system of the Transmittance-Haze testing instrument: (1) source (2) condenser (3) aperture (4) modulator (5) lens (6) sample (7) integrating sphere (8) photocell (9) reflectance standard (10) emergent window (11) entrance window. (b) The diagram of direct transmittance (Td), scattered transmittance (Ts) and transmittance (Tt).
