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ANTIREFLECTION COATING

AR FILTERS

Prinz Optics offers Antireflection Coatings for UV-, VIS- and NIR-range. Choosing the appropriate coating materials it is possible to minimize reflection for many different substrates. The transmission enhancing effect of the antireflection coating can be achieved for distinct wavelengths or for wavelength ranges. We offer broad band AR4 types and narrow band AR2 types.

Optical specification
Type Edge wavelengthl Maximum of reflection
AR4 450nm - 650nm R <= 1%
AR4 -850 700nm - 900nm R <= 1%
AR2-xxx xxx = required wavelength R <= 0,5%
AR2 550nm R <0,5%
Stability of the coating
Solubility, resistant to water, weak alkaline solutions
alcoholic solvents, glass cleaner
Temperature stability short-term up to 450 °
Abrasion resistance according to DIN ISO 9211-3; severity level 1 /Crockmeter
Adhesive stability according to DIN ISO 9211-3; severity level 3 / Scotch tape test
Moisture resistance according to DIN ISO 9211-3;40°C 90%-95% rel. humidity, 10 days
Coating defects
5/ C 5St x 1,0 (5/ CN´x A´) according to DIN ISO 10 110, part 7
referring to a surface of 100mm x 100mm C Indicator for surface errors
flaws < 0,2mm are ignored N´ the number of allowable coating defects
A´ the grade number
Scratches
5/ L 3St x 0,15mm (5/ LN´´x A´´) according to DIN ISO 10 110, part 7
referring to a surface of 100mm x 100mm L Indicator for scratches
defects < 0,05mm are ignored N´´the number of allowable scratches
A´´ the maximum tolerable width of the scratches in mm