Borosilicate Windows

 Borosilicate Windows are ideal for high temperature and harsh environment applications. With its excellent shock and thermal resistance property, borosilicate window products can maintain flatness in different environmental conditions.

 

Unlike common borosilicate that is drawn flat, is produced by a float technique that yields superior surface flatness — typically 4 - 6λ per inch.  For more information per material property, please refer to Schott official  brochure.

 

Hyperion Optics orders directly from Schott, offer two grades of custom borosilicate or equivalent windows, float grade which are cut from standard float sheet material and polished grade which are further intensively polished for better flatness and surface quality according to application requirement. We have been providing our standard and custom optical window for filter, first surface mirrors, protection windows utility.

 

Please check our precision grade and thickness available.

Standard Thickness
CT (mm) Tol (mm)	CT (mm) Tol (mm)
0.70 ± 0.05	8.00 ± 0.30
1.10 ± 0.05	9.00 ± 0.30
1.75 ± 0.05	11.00 ± 0.30
2.00 ± 0.05	13.00 ± 0.30
2.25 ± 0.10	15.00 ± 0.50
2.75 ± 0.10	16.00 ± 0.50
3.30 ± 0.20	18.00 ± 0.50
3.80 ± 0.20	19.00 ± 0.50
5.00 ± 0.20	20.00 ± 0.70
5.50 ± 0.20	21.00 ± 0.70
6.50 ± 0.20	25.40 ± 1.00
7.50 ± 0.30

 

Polished Borosilicate Windows	COMMERCIAL GRADE	FACTORY STANDARD	PRECISION GRADE
Diameter Tolerance(mm)	±0.05	±0.03	±0.0125
Center Thickness(mm)	±0.01	±0.03	±0.025
Parallelism (Arc min)	6	<3	<1
Cosmetic(MIL-C-13830A)	100-80	40-20	10/5
Figure Tolerance inλ(Pow/irreg)	3/1	2002/1/4	2001/1/10
Coating (T% avg)	96-98%	99%	99.50%
Materials	Borosilicate Glass

 

If you want to know more details of hyp design, please contact us.