Altana Haze-Gloss Manual Manuel d'utilisateur télécharger pdf (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

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