float glass window


He Rui optics'Float glass optical window blanks are a type of optical glass that has undergone surface polishing, characterized by a very flat surface. This glass can transmit light in the visible and near-infrared wavelengths, making it widely used in various optical devices. Float glass window blanks are typically used as protective devices between two interfaces to ensure the safety and efficient operation of optical systems.

When selecting and using float glass window blanks, a variety of sizes and coating options are available, including uncoated and anti-reflective coated window blanks, to suit different application needs.

Float glass is a type of flat glass manufactured by floating molten glass on a bath of molten tin. This process produces glass with uniform thickness and perfectly flat surfaces without the need for grinding or polishing.

There’re two main types: clear or tinted. There is clear and ultra-clear float glass in the clear category. And grey, bronze, green, blue, etc., in the tinted category.

Limitation of Float Glass

  • Not safety glass (breaks into sharp pieces)

  • Limited strength compared to tempered glass

  • Requires processing for high-performance applications

How To Choose The Right Float Glass?

  • Use clear float glass for general applications

  • Use low-iron glass for high transparency and premium design

  • Use tinted glass for solar control and aesthetics




Materialoptical glass,BK7 ,Fused silica, Ge,Si,CaF2, ZnSe,ZnS,BaF2,MgF2,LiF,KBr,Nacl,Corning Eagle XG,sapphire,Corning 7980,Corning 7979,Corning 8655 JGS1,JGS2,JGS3,Low iron glass,soda lime glass,Gorilla glass,ITO glass,FTO glass,borofloat 33(BF33)
Diameter 1-500mm
Thickness0.1-50mm
Diameter Tolerance±0.01 mm
Thickness Tolerance±0.01mm
Surface Quality80/50,60/40,40/20,20/10
Clear Aperture>90%
parallelism<3 arcmin
CoatingCustom,AR coating,BBAR coating, DLC coating, AF/AS coating,Hydrophobic Coating, ITO/FTO coating.
AR+AF/AS coating,AR+DLC coating,ITO/FTO+AR coating
Bevel0.1~0.3mm x 45 degree

Can be customized according to your requirements





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