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Factory Supply Ball Lens - THIN FILM POLARIZER – WISOPTIC

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Factory Supply Ball Lens - THIN FILM POLARIZER – WISOPTIC Detail:

Thin film polarizers are made from composed materials which include a polarizing film, an inner protective film, a pressure-sensitive adhesive layer, and an outer protective film. Polarizer is used to change un-polarized beam into linear polarized beam. When the light passes through the polarizer, one of the orthogonal polarization components is strongly absorbed by the polarizer and the other component is weakly absorbed, thus natural light is converted into linearly polarized light.

Polarization optics is important for both intra and extra cavity use. By having high contrast thin film polarizers in their design, laser engineers can save weight and volume within their devices without influencing the output. Compared with polarizing prism, polarizer has larger incident angle and can be made with larger apertures. Compared with polarizers made from birefringent crystals, the advantage of thin film polarizers is that they can be made in very large sizes, therefore can work in a laser device with high power or energy.

WISOPTIC Specifications – Thin Film Polarizers

Material BK7, UVFS
Diameter Tolerance +0.0/-0.15 mm
Thickness Tolerance ± 0.1 mm
Clear Aperture > 90% of central area
Surface Quality [S/D] < 20/10 [S/D]
Transmitted Wavefront Distortion λ/10 @ 632.8 nm
Parallelism ≤ 30”
Extinction Ratio (Tp/Ts) > 200:1
  Coating   High LDT coating upon request
  Laser Damage Threshold 10 J/cm² @ 1064 nm, 10 ns, 10 Hz

Comparison of Different Materials of Polarizers

YVO4 Calcite α-BBO Quartz
Transparency Band 500-4000 nm 350-2300 nm 220-3000 nm 200-2300 nm
Crystal Type (uniaxial) Positive
no=na=nb, ne=nc
Negative
no=na=nb, ne=nc
Negative
no=na=nb, ne=nc
Positive
no=na=nb, ne=nc
Mohs Hardness 5 3 4.5 7
Thermal Expansion Coefficient aa=4.43×10-6/K
ac=11.37×10-6/K
aa=24.39×10-6/K
ac=5.68×10-6/K
aa=4×10-6/K
ac=36×10-6/K
aa=6.2×10-6/K
ac=10.7×10-6/K

glt
glt-2
polarizer-3


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Factory Supply Ball Lens - THIN FILM POLARIZER – WISOPTIC detail pictures

Factory Supply Ball Lens - THIN FILM POLARIZER – WISOPTIC detail pictures

Factory Supply Ball Lens - THIN FILM POLARIZER – WISOPTIC detail pictures


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Our products are broadly identified and trustworthy by people and may meet continually modifying financial and social requires of Factory Supply Ball Lens - THIN FILM POLARIZER – WISOPTIC, The product will supply to all over the world, such as: United Arab emirates, Greece, Roman, Our company regards "reasonable prices, efficient production time and good after-sales service" as our tenet. We hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact us.
  • Perfect services, quality products and competitive prices, we have work many times, every time is delighted, wish continue to maintain!
    5 Stars By Jo from Japan - 2017.10.23 10:29
    The company comply with the contract strict, a very reputable manufacturers, worthy a long-term cooperation.
    5 Stars By Ruby from Sacramento - 2017.10.23 10:29

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