After-sales Service: | Online Service |
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Warranty: | Online Service |
Usage: | Optical |
Samples: |
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Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Groove Density (grooves/inch) | 125 |
Dimensions (inches) | 2.3 X 2.3 |
Effective Diameter (inches) | 2.0 |
Effective Focal Length EFL (inches) | 1.50 |
Effective Focal Length EFL (mm) | 38.1 |
Center Thickness CT (inches) | 0.06 |
Dimensional Tolerance (inches) | ±0.05 |
Thickness Tolerance (%) | ±40 |
Transmission (%) | 92 (from 400-1100 nm) |
Index of Refraction ND | 1.49 |
Operating Temperature (°C) | 80 (Maximum) |
Coating | Uncoated |
Substrate | Acrylic |
Wavelength Range (μm) | 0.4 - 1.1 |
Type | Fresnel Lens |
Range of diameter | Dia.0.7mm-Dia.400mm |
Range of curve radius | R1.5-R∞ etc. |
Tolerance of diameter | +/-0.1, +/-0.01, +/-0.005 etc. |
Surface accuracy | Λ , 1/2λ , 1/4λ , 1/10λ etc. |
Tolerance of Thickness | +/-0.1, +/-0.05, +/-0.01 etc. |
Centration | +/-2′, +/-1′ etc. |
Aperture N | 5, 1 etc. |
Irregularity ΔN | 2, 1, 0.5, 0.2 etc. |
Surface quality | 60/40, 40/20, 20/10, 10/5 etc. |
Suppliers with verified business licenses