Calcium Fluoride is a very good material which can be used in deep UV and infrared wavelength, the transmission is more than 90% at 025-7um wavelength.
Ball lens is used to improve the signal coupling between optical fiber, transmitter and detector, improve the signal quality, and can also be used in endoscopy, bar code scanning, aspherical lens preprocessed materials, sensors, etc. The ball lens has a short focal length, which minimizes the distance needed to travel from the ball lens to the fiber. Sunday Optics can manufacture ball lens Minumum diameter 0.3mm. Calcium Fluoride is a very good material which can be used in deep UV and infrared wavelength, the transmission is more than 90% at 025-7um wavelength.CaF2 has low refractive rate, so generally it is not necessary to make Anti-reflective coating on the surface.
Specifications:
Material:BK7 K9 Sapphire JGS1 UV Fused Silica, ZnSe Ruby
Size:0.3-200mm
Surface Quality:c40-20
Tolerance:+/-0.002mm
Coating: AR Coating
Ovality:+/-0.002mm
sales@sunday-optics.com www.sunday-optics.com Bess Zhang
Phone:+8615104452660 +8618744192450