Q: How tight a flatness spec can IRD Glass hold?
A: IRD Glass typically holds flatness within .000010″ on a day. in, day out basis. Depending on the substrate and the size, IRD Glass can comfortably hold flatness to 1/10 wave.

Q: What angular tolerance can IRD Glass hold?
A: Angle tolerances better than 1 to 3 arc minutes can be consistently reproduced by the technicians at IRD Glass.

Q: Can IRD measure angles?
A: IRD can provide NIST traceable certificates for angles accurate to within 5 arc seconds.

Q: What types of glass finishing does IRD offer?
A: At IRD Glass, you can request a rough ground finish, a lapped surface finish, a polished finish, or you can specify a specific Ra (roughness) value or even a range of surface roughness..

Q: Does IRD Glass do any fire polishing?
A: Yes, we do provide the service of fire polishing. IRD currently fire-polishes the ends of a number of small diameter precision tubes to remove chips and scratches.

Q: Does IRD Glass manufacture optical lenses?
A: IRD Glass currently manufactures all flat and cylindrical lenses in-house. Spherical lenses are currently manufactured by qualified partners.

Q: Will IRD cut glass?
A: IRD Glass is a high-precision glass manufacturing facility. Although we may cut glass as a step in the manufacturing process, we typically do not cut glass for architectural or artistic endeavors.