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
Custom step windows are ideal use in viewports, pressure, and vacuum situations. Sapphire step windows also make great viewports for deep ocean vehicles.
product orgin:
Chinashipping port:
Fuzhou Chinapayment:
T/T Payment, Western UnionHigh Presion Optical Step Windows
Custom step windows are ideal use in viewports, pressure, and vacuum situations. Sapphire step windows also make great viewports for deep ocean vehicles.
Feel free to contact us for your customized step windows circle, square with different materal.
Step Windows Specification:
Material:
BK7, Fused Silica, Sapphire etc. Optical glass
Dimension Tolerance:
+0.0, -0.1mm
Thickness Tolerance:
± 0.1mm
Surface quality:
20/10-80/50
Clear Aperture:
>85%
Flatness:
λ/10-2λ
Parallelism:
10"-3'
Bevel:
<0.25mm X 45°
Coating:
Upon requirement
Plano-Concave Lenses have a negative focal length and is typically used to cause a collimated beam to diverge as in a Galilean type beam expander or Telescope. 1. Beam expansion 2. Light projection 3. Expanding an optical system’s focal length
Hastings triplets achromatic lenses are designed to provide an infinite conjugate ratio and are useful for focusing collimated beams and for magnification. Steinheil triplets achromatic lenses are designed to provide a finite conjugate ratio and 1:1 imaging.
Penta prisms are five-sided prisms featuring a ray deviation of 90° and a right handed image 90° Deviation of Beam or Image Right Handed Image Coating are avaliable
Rhomboid prisms are commonly used to displace a laser beam without changing its direction. Lateral Displacement of Beam Displaces Optical Axis Without Inverting Image
Positive meniscus lenses is convex-concave lens thicker at the center than at the edges, which frequently used for beam focusing applications. Negative meniscus lenses is convex-concave lens thinner at the center than edges, which frequently used for beam expanding applications.
Zero order waveplate are constructed of two multiple order waveplates which is designed to give a retardance of zero full waves, plus the desired fraction. 1. Zero Order Waveplates-Cemented by Epoxy 2. Zero Order Waveplates-Optically Contacted 3. Zero Order Waveplates-Air-spaced
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