Contact Us

Borosilicate Windows

  • Introduction

 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.


types of Borosilicate Windows


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.


Borosilicate Windows


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.


Borosilicate Windows design


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

2 - 1/4

1 - 1/10

Coating (T% avg)

96-98%

99%

99.5%

Materials

Borosilicate Glass


Related Content
  • Corner Cube Retroreflectors

    Corner Cube Retroreflectors

    February 17, 2017Corner cube is total reflecting prism formed by 3 perpendicular surfaces, where the incident light angle does not influence the final emerging light angle but reflected by 180°, it offers excellent p...view
  • Notch Filter

    Notch Filter

    February 17, 2017The notch filter, in contrast to a narrow band filter, intercepts light in a particular wavelength range by transmitting light at most wavelengths.Notch filters are useful in applications where it is ...view
  • Concave Mirror

    Concave Mirror

    February 17, 2017The concave mirror is the reflection imaging, it is not the light through, but the reflection back to the imaging instrument, the light observes the reflection law. A concave mirror is a spherical mir...view