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Optical Flats

 

Lapmaster Optical Flats are manufactured using the finest quality materials and the latest manufacturing techniques. The optical flats are made either from the highest quality clear fused Quartz, which is known for its very low thermal expansion characteristics and resistance to abrasion, or Zerodur**, a glass ceramic material with ideal properties for this application..

 

 

Lapmaster Optical Flats are available in a full range of standard sizes from 25mm to 600mm diameter. Larger, smaller and special shapes optical flats will be quoted upon request. Lapmaster optical flats can be single or double surfaced and available in certified optical accuracies of 1/10th light band, 1/4 light band, and 1/2 light band.

 

Custom made optical flats, including Donut flats, are available on request

 

Download Flatness Datasheet HERE

Lapmaster are also able to offer a complete recalibration / recertification and/or refurbishment service.

 

Note: Bubbles which are seen to be open and on the surface of the material are not permitted.

Bubbles fully enclosed in the bulk of the material - Per 100 cm3 can be:

 

Per 100 cm3
0.1 - 0.5mm	50

 

Bubbles smaller than 0.1mm are not counted.

No inclusions, obviously visible to the naked eye, are allowed.