Rhopoint NOVO-GLOSS IQ, Инструкция по эксплуатации инструмента, Страница: 4 / 28

N O V O - G L O S S I Q O P E R A T I O N M A N U A L
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Novo-Gloss IQ
Specular Goniophotometer
Goniophotometer is derived from Greek;
Gonio-Angle, Phos-Light, Metron-Measure
Gloss describes the perception of a surface appearing “shiny” when light is
reflected from it.
When viewing glossy surfaces it is found that a sudden increase in brightness
occurs when the angle of observation equals the angle of incidence of the
illuminating light. This condition is termed as specular reflection.
The Novo-Gloss IQ uses a diode array to measure the distribution of reflected light
+/- 6⁰ from the specular reflection angle.
Each measurement consist of a 256 point profile of the reflected light. Using
this information the instrument calculates Gloss, Rspec, Haze (HU or HU
LOG
)
and Distinctness of image values.
These values are used to assess the visual impact and reflective quality of
many coated, painted and polished surfaces.
Goniophotometric output from the Novo-Gloss IQ analysed in MS Excel. This example shows three papers with different
gloss levels.