| Place of Origin: | Wuhan,China |
|---|---|
| Brand Name: | Wuhan Siwer Optics |
| Minimum Order Quantity: | 10 pieces |
| Price: | 50-300USD/piece |
| Packaging Details: | 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler |
| Delivery Time: | 4-6 weeks |
| Payment Terms: | T/T, Western Union |
| Supply Ability: | 20000 pieces/month |
| Material: | Optical Glass | Size Tolerance: | +/-0.1mm |
|---|---|---|---|
| Chamfer: | 0.2-0.5mm | Surface Quality: | 40/20 |
| Surface Flatness: | Lambda/4 In 25.4mm | Centration: | 3 Arc Min |
| Standard Coating: | AR@400-700nm | Size Range: | 4-300mm |
| Usage: | Optical System | ||
| High Light: | achromatic lens,achromatic cylindrical lens |
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Achromatic doublet lenses consist of two optical components cemented together to form an achromatic doublet which is computer optimized to correct for on-axis spherical and chromatic aberrations. Our achromatic doublets are available with a single layer MgF2 coating or a broadband multi-layer coating for the visible spectrum. NIR achromatic doublets and edge blackened achromatic doublets are also available.
Achromatic doublet lenses are far superior to simple lenses for multi-color ("white light") imaging. The two elements composing an achromatic doublet lens (literally, "a lens with no color") are paired together for their ability to correct the color separation inherent in glass. Having eliminated the problematic chromatic aberrations, achromatic doublet lenses become the most cost-efficient means for good polychromatic illumination and imaging.
Optical AR Coatings
a) Uncoated,The surface reflectivity of uncoated visible lenses(Refractive index＝1.5) is about 4%.
Click on the link to see how to calculate reflectivity
b) AR/AR@400-700nm,Tavg>99.4%
c) AR/AR@450-650nm,Tavg>99.6%
d) AR/AR@400-1000nm,Tavg>98.5%
e) We can also customize high damage threshold antireflective coatings
| Material | Optical glass |
| AR Coating Range | 400-700nm or customized |
| Reflectance over AR Coating Range @ 0° AOI |
Ravg<0.5% |
| Diameter Tolerance | +0.0/-0.1 mm |
| Thickness Tolerance | ±0.1 mm |
| Focal Length Tolerance | ±2% |
| Surface Quality | 40/20 Scratch-Dig |
| Surface Flatness (Plano Side) |
λ/2 at 633nm |
| Spherical Surface Powerc (Convex Side) |
1.5λ at 633nm |
| Surface Irregularity (Peak to Valley) |
λ/2 at 633nm |
| Centration | <3 arcmin |
| Clear Aperture | >Ø10.16 mm (Ø1/2" Lenses) >Ø20.32 mm (Ø1" Lenses) |
| Design Wavelength | 546nm |