Anti Reflection Coatings

Transkript

1 Anti Reflection Coatings Uncoated glass surfaces reflect about 4-8 % of incident light. Ghost images and stray light reduce image contrast. Anti-reflection coatings minimize reflects. UV cut, color and ND filters come with standard broadband coating (E) for visible spectrum or broadband multilayer resistant coating (MRC for VIS and MRCIR for NIR). They are hydrophobic and withstand mechanical and environmental stress. High end UV-IR Cut, bandpass, longpass and shortpass filters come with our superior ultra reflection coating ULR, ULRIR or MCXL. These coatings have an outstanding low reflection over an extended wavelength range V coatings are available on request; those custom coatings have an extreme low reflex at an optimized wavelength. Especially V-coatings are sensitive to angle of incidence. Key Features Applications higher transmittance lower reflection minimize stray light better contrast Inspection systems Surveillance cameras Protective glass / gauge-glass Medical devices General technical specifications Climate Testing Slow temperature cycling DIN ISO Damp heat, cyclic DIN ISO Chemical resistant DIN ISO Solubility ISO Adhesive strength DIN ISO /9

2 ULR ultra low reflection Flatness R > 10 x lens diameter Average reflection nm: Rave < 0.20% 420 nm: Rabs < 1.00 % 430 nm: Rabs < 0.50 % nm: Rabs < 0.25 % 650 nm: Rabs < 0.50 % 680 nm: Rabs < 1.00 % Absorption < 0.1 % Scatter losses < 0.1 % Refraction index of substrate / UV-IR cut filter Bandpass filter Shortpass filter BP (UI515) HT BP HT BP (486) HT BP HT BP HT SP 615 ULR HT SP 730 ULR HT 2/9

3 ULR-IR ultra low reflection for NIR Flatness R > 10 x lens diameter Average reflection nm: Rave < 0.25% 560 nm: Rabs < 1.00 % nm: Rabs < 0.30 % 960 nm: Rabs < 1.00 % Absorption < 0.1 % Scatter losses < 0.1 % Refraction index of substrate / Longpass filter LP 565 ULR-IR HT LP 590 ULR-IR HT LP 610 ULR-IR HT LP 630 ULR-IR HT LP 695 ULR-IR HT 3/9

4 MCXL multi coating extended Average reflection nm: Rave < 1.0 % 400 nm: Rabs < 4.5 % 425 nm: Rabs < 2.0 % 999 nm: Rabs < 1.5 % 1100 nm: Rabs < 4.5 % Absorption < 0.1 % Scatter losses < 0.1 % Shortpass filter Longpass filter SP 850 MCXL HT LP 430 MCXL HT LP 460 MCXL HT LP 495 MCXL HT 4/9

5 MRC multi resistant coating Average reflection nm: Rave < 0.3 % 400 nm: Rabs < 1.0 % nm: Rabs < 0.5 % 680 nm: Rabs < 1.0 % Absorption < 0.3 % Scatter losses < 0.2 % Refraction index of substrate / UV cut filter IR cut filter Blue filter Light red filter Red filter Linear Polarizer 010 MRC on request 489 MRC on request 039 MRC 090 MRC on request 091 MRC on request AUF MRC 5/9

6 MRC-IR multi resistant coating for NIR Average reflection nm: Rave < 0.4 % 220 nm: Rabs < 1.0 % nm: Rabs < 0.6 % 1100 nm: Rabs < 1.0 % Absorption < 0.3 % Scatter losses < 0.2 % Dark red filter IR Pass 092 MRCIR 093 MRCIR 098 MRCIR 6/9

7 E standard AR coating nm: Rabs < 1.5 % Absorption < 0.2 % Scatter losses < 0.2 % Refraction index of substrate ne < 1.70 UV cut filter IR cut filter Light red filter Red filter ND filter Windows 010 E 489 E 090 E 091 E 101 E 102 E 103 E 007 E 7/9

8 V coating 1064 nm (fused silica) Rabs < 0.2 % Absorption < 0.1 % Scatter losses < 0.2 % Angle of incident 0 Laser Damage Threshold > nm, 6ns (50%-LIDT, 1-on-1) ISO > 8 355nm,6ns (onset-lidt, S-on-1) ISO > nm, 9ns (50%-LIDT, 1-on-1) ISO > nm,9ns (onset-lidt, S-on-1) ISO Available only on request 8/9

9 Contact Jos. Schneider Optische Werke GmbH Ringstraße Bad Kreuznach Germany Phone Fax Schneider Asia Pacific Ltd. 20/F Central Tower, 28 Queen s Road Central, Hong Kong China Phone Fax [email protected] Schneider Optics Inc. 285 Oser Ave. Hauppauge, NY USA Phone Fax [email protected] 9/9