Place of Origin:
China
Brand Name:
Yu Feng
Model Number:
Customized Origin
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Large Aperture Optical Glass Lenses
Convex lenses include: A,B,C FConcave lenses include: D,E, F
D=Diameter
R=Radius
TC=Center Thickness
TE=Edge Thickness
Technical Parameters:
| Specifications | Normal | High Precision | Mfg.Limit |
| Material : | H-K9L | H-K9L | H-K9L |
| Design Index: | 1.5168 | 1.5168 | 1.5168 |
| Diameter Tolerance | +0/-0.1mm | +0/-0.1mm | +0/-0.1mm |
| Thickness Tolerance : | +/-0.1mm | +/-0.1mm | +/-0.1mm |
| Focal Length Tolerance : | +/-2% | +/-2% | +/-2% |
| Centeration : | 3 arc min | 3 arc min | 3 arc min |
| Surface Quality: | 60-40 | 20-40 | 20-40 |
| Surface Figure: | 3 lambda | 2 lambda | 2 lambda |
| Surface lrregularity : | 1 lambda | 1/4 lambda | 1 /4lambda |
| Clear Aperture : | >80% | >90% | >95% |
| Bevel: | +/-0.2*45 degree | +/-0.2*45 degree | +/-0.2*45 degree |
Application Fields of our products
Optical elements produced by our company are widely used inmilitary, aerospace, chemicalindustry, the public securityinvestigation, medicalinstrument, optical communicationenvironmental monitoring, photoelectric detection, cameraphotography,scanning laser instrument, the projection,anti-corrosion glass window, pressure-proof window,hightemperature windows, panel glass and other fields.
We can supply design,producing,coating.
cementing,assembly to customerrequirement.
Send your inquiry directly to us
