Model: SPX029AR.4 » View Series Overview

Plano-Convex Lens, Fused Silica, 25.4 mm, 250 mm EFL, AR.4 coated

  • $182.00
  • SPX029: BFL= 247.46 mm, FFL= 250 mm, P2= -2.54 mm, Tc= 3.710 mm, R= 114.603 mm

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The SPX029AR.4 High Energy Fused Silica Lens is a broadband AR.4 coated (at 230-266 nm), 1 inch (25.4 mm) diameter, HPFS 7978 plano-convex lens with an effective focal length of 250.0 mm. It is designed for high frequency laser pulses where standard grade fused silica does not perform very well. The special grade fused silica Corning HPFS 7978 has very low hydroxyl molecule presence compares to standard fused silica material, which results in less absorption of laser light and greatlly reduce the chances of internal damage of the lens.