Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.
Achromatic Waveplate Achromatic Waveplates(Retarders), AWP is composed of one piece of Crystal Quartz and one piece of Magnesium Fluoride, MgF2.
Barium fluoride (BaF2) shows good optical transmission over UV-IR windows in 0.15μm~12.5μm.
MgF2 windows are used in the UV, visible and IR ranges, with approximately 94% transmission from 200 - 1000 nm, and approximately 95% transmission from 1-6µm
CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm. 1. Low absorption coefficient 2. High damage threshold, 3. Low Dispersion (with an Abbe Number of 95) 4. Low fluorescence 5. Excellent water, chemical, and heat resistance
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T/T paymentN-BK7 and Fused Silica Wedge Prisms and Wedge Windows
Wedge Prisms is also called Wedge Windows have similar function with optical windows.They all can be used as isolating components. Wedges may be used to produce a small deviation, which don't allow return to the source.
Specifications: | |
Material: | N-BK7 or UV Fused Silica, ZnSe, Germanium etc. |
Dimension Tolerance: | +0.0, -0.1mm |
Thinkness Tolerance : | +/-0.2mm |
Surface quality: | 60-40 S/D |
Surface flatness: | λ/4 @ 632.8nm |
Wedge tolerance: | ±1 arc min |
Clear Aperture: | >85% of dimension |
Bevel: | <0.25mm×45° |
Coating | AR coated, Dielectric coated or Upon requirement |
Typical Sizes: | ||
Diameter(mm) | Deviation angle(α) | Wedge angle(β) |
Φ25.4 | 1° | 1°57' |
Φ25.4 | 2° | 3°53' |
Φ25.4 | 4° | 7°46' |
Φ25.4 | 6° | 11°39' |
Different Shape, size, material and coating requirement are available.
Low Order Waveplate(Multiple order waveplates) are made from a single crystalline plate, are designed to give a retardation of several full waves, plus the desired fraction.
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3).It's a negative uniaxial crystal and mostly used as visible and near IR polarizers. It has high birefringence, wide spectral transmission and availability in reasonably sized rhombs.
Achromatic Waveplate Achromatic Waveplates(Retarders), AWP is composed of one piece of Crystal Quartz and one piece of Magnesium Fluoride, MgF2.
Schmidt Prisms Schmidt prisms are used to invert and revert an image to angle of 45°. The 45° deviation makes Schmidt prisms useful in eyepiece assemblies and imaging systems requiring a path bend. 1. Ray Deviation of 45° 2. Right Handed Image 3. Combine with Half-Penta Prism to Create Pechan Prism
Retroreflectors (Corner Cube Prisms) reflect an image or beam back toward its original direction via three total internal reflections (TIR) 180° Reflection Inverts Image 3 arcsec Beam Deviation
ZnSe is used widely for IR components, windows and lenses, and applied for Thermal Imaging, FLIR, Medical systems and Co2 Laser
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