Various materials are used to
produce body effects, such as micro-louvres in a
laminate.
They include:
Surface Patterned Glass
Reflection and diffusion, in combination,
are present in surface patterned glass products.
The depth, size and shape of the pattern largely
determine the magnitude and direction of reflection.
The surface finish determines the degree of diffusion.
The interplay between diffusion and reflection influences
the degree of 'sparkle' (by specular reflection)
and obscuration.
Patterned glass usually transmits
only slightly less light than clear glass. The more
diffusing the glass, the more the directional properties
of light transmitted by the glass will be diminished,
and the more likely it might become a glare source,
when its whole surface may appear bright.
Surface Treatments
Sand blasting and acid etching are examples of surface
treatments. They produce uniform, relatively matt
appearances and surface reflection properties that
approach those of a perfect diffuser. The appearance
of a surface treated glass is influenced by the
relative level of illuminance on either side of
the glass. Whilst this appearance is mainly for
decoration, such materials can also be graded for
their obscuration
Patterned glass usually transmits
only slightly less light than clear glass. The more
diffusing the glass, the more the directional properties
of light transmitted by the glass will be diminished,
and the more likely it might become a glare source,
when its whole surface may appear bright.
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