ALTANA Haze-Gloss Manual - Manual (Page 22)

The Equation
The equation for reflection haze is:
H = K x lg (linear haze value/20 + 1).
In order to achieve a logarithmical haze
value of 1000 at a linear value of 100
haze units, the constant k = 1285.1 is
used.
The Equation
The equation for reflection haze is:
H = K x lg (linear haze value/20 + 1).
In order to achieve a logarithmical haze
value of 1000 at a linear value of 100
haze units, the constant k = 1285.1 is
used.
For the measurement of reflection haze,
2 additional apertures
c (width = 1.8 °)
are positioned on either side of the 20
°
specular gloss aperture. This allows for
the measurement of the diffusely
scattered light adjacent to the 20
°
specular angle.
Note
The reflection haze value is displayed
logarithmically
• in order to correspond as close as
possible with the visual perception of
reflection haze by the human eye.
• in order to achieve a higher sensitivity
in the case of low haze values.
(The lower the haze value, the better
the surface quality.)
For the measurement of reflection haze,
2 additional apertures
c (width = 1.8 °)
are positioned on either side of the 20
°
specular gloss aperture. This allows for
the measurement of the diffusely
scattered light adjacent to the 20
°
specular angle.
Note
The reflection haze value is displayed
logarithmically
• in order to correspond as close as
possible with the visual perception of
reflection haze by the human eye.
• in order to achieve a higher sensitivity
in the case of low haze values.
(The lower the haze value, the better
the surface quality.)
; ; ; ;
;
;
;
;
;;;;
; ;
haze
20 0
20 0
60 0
60 0
85 0
85 0
a
b
c
a
; ; ; ;
;
;
;
;
;;;;
; ;
haze
20 0
20 0
60 0
60 0
85 0
85 0
a
b
c
a