Drum Lenses D=4.00mm F=3.98mm UV UV Fused Silica | GU OPTICS
Drum Lenses D=4.00mm F=3.98mm UV UV Fused Silica

Drum Lenses D=4.00mm F=3.98mm UV UV Fused Silica

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Product No. 165028

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Dia 4.00mm
EFL 3.98mm
Coating AR@250~400nm
Material UV Fused Silica
BFL 1.48mm
CT 5.00mm
Design Wavelength 587.6nm
Diameter Tolerance +0.0/- 0.05mm
Center Thickness Tolerance ±0.005mm
Surface Accuracy λ/4 @632.8nm
Surface Quality 40/20-60/40
n n=1.45851
Drum lenses are spherical at both ends, which can provide a position surface along the optical axis. Ball lenses are formed by grinding an outer circle on a ball lens in order to mount conveniently. These are ideal for optical transmission in fiber communication applications
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