sapphire lens

Sapphire Lenses are suitable for high power, high-pressure applications, and vacuum or corrosive atmospheres. The material is extremely hard and resistant to attack by strong acids. It has high compressive strength, a high melting point, and excellent thermal conductivity. Transmission range is from 150 nm to 5 µm. Sapphire LensesSeries optical grade sapphire lenses are manufactured from optical grade grown sapphire. Monocrystalline sapphire is slightly birefringent. The lenses are available in positive and negative configurations. Typical applications include:IR laser Beamsteering optics Imaging optics Chemical & erosion resistant front surface optics. Focusing Optics This series of sapphire lenses is currently in limited production. Please consult the factory for availability. Other diameters and focal lengths may be special ordered. We can also supply parts with anti-reflection and other thin film coatings.Specifications:Material:Optical grade single crystal sapphireOrientation:C-axis perpendicular to the facesDiameter Tolerance:+/- 0.25 mmThickness Tolerance:+/- 0.20mmClear Aperture:Central 80% of the diameterCentering Error:3 arc minutes maximumSurface Quality:60-40,40/20 scratch-dig per MIL-O-13830AFocal Length Tolerance:+/- 5%