640nm HB640 size diameter 49mm red ir optical band pass filter

Specifications:

• Origin: CN(Origin)
• Use: Surveillance systems,infrared devices
• thickness: 0.5-20mm
• surface: 40/20 no bubbles no hairlines
• size: we can produce any size
• Size: D49*2mm
• shape: round
• samples: can offer
• polishing: two sides
• packing: Safety Cartons Packing
• Model Number: HB640
• Material: optical glass
• Edge: protection chamfer
• color: red
• coating: you can choose AR coating