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Antireflection Coatings0 pages
> Antireflection Coatings
BLUEBELL
INDUSTRIES
Antireflection coatings reduce the surface reflexes of light
on glasses. Concerning glass with n = 1,52 ( e.g. optical crown ),
approximately 8% of the light are reflected at the surfaces.
With antireflection coatings the loss can be reduced to less than 1%.
Hence, antireflection coatings are indispensable for effective
optics and illumination systems and simultaneously increase the contrast.
> Principle charts for AOI = 0° (blank BK7 for comp arison)
Single Layer
Broadband
V-Antireflection
4,00
4,00
3,00
2,00
Reflectionn (%)
5,00
Reflectionn (%)
5,00
4,00
Reflectionn (%)
5,00
3,00
2,00
1,00
1,00
0,00
0,00
400,00
450,00
500,00
550,00
Wavelength (nm)
600,00
650,00
700,00
400,00
3,00
2,00
1,00
0,00
450,00
500,00
550,00
Wavelength (nm)
600,00
650,00
700,00
400,00
450,00
500,00
550,00
Wavelength (nm)
600,00
650,00
> Spectral specifications (standard; others on request):
Single layer antireflection coating
Broadband antireflection coating
(multilayer)
V- antireflection coating for single
wavelength
R < 1,5 % at 550 nm
R < 0,5% for 430 nm – 650 nm
R < 0,15% at 535 nm
AOI = 0°
AOI = 0°
AOI = 0°
The anti-reflected spectral area can be chosen from between 220 nm up to 1800 nm depending on the task.
Abrasion resistance:
DIN ISO 9211-4 severity level 03 (rubber test)
Adhesive strength:
DIN ISO 9211-4 severity level 02 (sticky tape test)
Thermal endurance:
Up to 300°C with appropriate glass substrate (e.g. borosilicate glass)
at constant warming
Bluebell Industries Limited
Stonebroom Industrial Estate, Stonebroom, Derby, DE55 6LQ, England.
Tel. +44 (0) 1773 875544 Fax. +44 (0) 1773 875566 www.bluind.co.uk
700,00
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