| Place of Origin: | Wuhan,China |
|---|---|
| Brand Name: | Wuhan Siwer Optics |
| Model Number: | Achromatic lens |
| 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: | 2000 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 Or Customized | Size Range: | 3-220mm |
| Usage: | Optical System | ||
| High Light: | achromatic lens,achromatic cylindrical lens |
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Achromatic lenses are very common type of viewer lenses,they consist of two or more lense elements,which have been corrected for chromatic aberration with respect to two selected wavelengths,the elements must be fixed in relation to one another by either mounting or cement.
Achromatic lenses are designed to specifically function within the infrared,visible,or ultra-violet wavelength ranges,and they are not symmetric devices.
They must be installed with the correct front-to-back orientation (thicker element usually faces the eyes) if installed incorrectly.with the lens orientation installed backwards the result will be extensive distortion and aberration.
Optical glued lens are supplied coated or with a single layer anti-reflection coating suitable for the visible (400 - 700 nm) or the near infra-red (600 – 1200 nm).
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 |
Lens Grinding
Lens High Speed Polishing
Optical Coating