CLAREX® Anti Reflection Filters (AR Acrylic)

Additional coatings prevent surface scratching and smudging

COATED vs. UNCOATED: An uncoated piece of acrylic on one side and an antireflection coated piece on the other side.

Reflection of a very bright light source. The sample on the right (with blue reflection) has AR coating. Reflection intensity is much lower.

CLAREX® AR COAT FILTER - is treated with a multi-layer AR coating which prevents light reflection. Additional coatings prevent surface scratching and smudging. May be combined with non-glare surfaces to further reduce reflection.

APPLICATIONS - Anti-reflection panel for LCD, CRT, LET, EL, PDP, VFD, FED, bar code scanners, etc.

THICKNESS - 0.2 to 5.0mm

SIZES - 290mm x 360mm standard | Custom sizes available upon request.

TYPES - Anti-reflection available one side or two sides with or without anti-smudge coating.
Custom-tuned anti-reflection coatings are available for NIR or UV applications –
contact us.

MACHINING / PRINTING - Available to customer specification.

  • Excellent optical characteristics & reflection prevention
  • Excellent transmission, greater than 98% visible range
  • Excellent surface hardness & impact resistance
  • Excellent smudge resistance. Anti-smudge coating makes the surface easier to clean (but cannot 'prevent' fingerprints).

COLORS - Available in clear and many colors. See standard colors.

Custom-Tuned AR Coatings Available!

Contact Astra Products with your optical requirements

Transmission/Reflection Plots for Standard AR Coating One Side and Both Sides
(click images to enlarge)

Elongation ASTM D-638 % 5
Flexural Rupture Strength ASTM D-790 kg/cm2 800
Heat Distortion Temperature ASTM D-648 ºC 110
Maximum recommended continuous temperature ºC 80
Available with higher temperature ratings on request, 90-95ºC
Coefficient of Thermal Expansion ASTM D-696 cm/cm/ºC 7 x 10-5
Heat Resistance 80ºC x 100hr   No Change
Cold Resistance -40ºC x 100hr   No Change
Humidity Resistance 40ºC x 90% x 100hr No Change
Thermal Cycle -40ºC <> 80ºC
(10 cycles)
  No Change
Sunshine Weather Meter 100 hr   No Change
Pencil Hardness     6~8H
Shed Water (Touch Angle)     114º
Isopropyl Alcohol (50%)     No Change
Soap Aqua Solution     No Change
Water     No Change
Sulfuric Acid     Dissolved
Sodium Carbonate     Dissolved