Optical Glass Half Ball Lenses

Half Ball Lenses for LED Industry
Hemispheres Half-Ball Lenses, they offer uniform dispersion of light used in LED displays, especially for high power and UV LED, focusing and coupling applications. Half ball lenses are used to improve signal coupling between Emitters, Fibres, Transmitters, Receivers and Detectors depending on the application.
1) It has many advantages over silicone lens and plastic lens
•  High surface quality
•  Super transparent over full lifetime of LED
•  Scratch-proof surface
•  Wide range refractive index(1.48~2.0)
•  Heat resistant up to more than 500°C
•  Excellent thermal characteristics

2) Main Specifications of Half ball lenses
• Material: BK7, B270, Borosillicate glass, UV Fused Silica or any other glass crystal material, plastic and SI, Ge and other infrared material are also available
• Tolerance on half Ball Lens Diameter: +/- 0.001mm
• Tolernace on half ball lens Thickness: +/- 0.01mm
• Half Ball Lens Roundness: < 0.001mm
• Surface Quality of Half Ball lens: 20/10 scratch and dig or better
•  Half Ball Lens Cleaning: Class 100 clean room
•  Half Ball Lens Packing: in Waffle plastic trays
•  Each Half Ball Lens is checked: 100% under microscope before Delivery.
•  All Half Ball Lenses are cleaned and packed: in Class 100 clean room area.

Half Ball Lenses for High Precision Applications
High precision half ball lenses is also available, which is used in communication, endoscopy, microscopy, optical pick-up devices and laser measurement systems, please contact our sale engineers for detailed information.