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Crystal window & filter for pyroelectric and Multi-spectral detectors

Description:

The detector window has to fulfill two functins:

Define the spectral sensitiveness of the pyroelectric chip according to the purpose of the application from UV to Far IR

Reliable hermetic seal of the optical interface between detector and environment

Laser Optex provide crystal window & filter with the following versions:

Standard single crystal windows

Standard narrow band pass filters (NBP)

Custom-designed filters or filters

the catalog of window & filter for pyroelectric detectors

 

Window / Filter
Description

Band Pass Wavelength

Typical peak Transmission

Typical Average Transmission

Standard thickness

Sapphire

0.3 - 7.0 μm

90%

85%

0.5 mm

Polycrystalline Spinel?

0.3 - 6.0 μm

85%

85%

0.5 mm

Polycrystalline MgF2

0.7 - 9.0 μm

85%

85%

0.6 mm

BaF2 (Barium Fluoride)

0.2 -17.5μ m

91%

91%

0.6 mm

CaF2 (Calcium Fluoride)

0.2-12. 5 μm

90%

90%

0.4 mm

UV Quartz glass

0.15 - 2.6 μm
2.75 - 4.8 μ m

85%

70%

0.5 mm

ZnSe (Zinc Selenide)

0.58 - 22μ m

70%

68%

1.0 mm

ZnS? (Zinc Sulfide)

1.0 -15 μm

75%

68%

1.0 mm

KBr (Potassium Bromide, protected)

0.2 - 30 μm

90%

90%

0.8 mm

CsI (Cesium iodide, protected)

0.3 - 50μ m

80%

80%

0.8 mm

Uncoated Ge

1.8 - 30μ m

45%

45%

1.0 mm

8-14 |¨?m Ge (DLC protected)

8 -14 μm

92%

75%

1.0 mm

8-14 |¨?m ZnSe (DLC protected)

8 -14 μm

95%

90%

1.0 mm

3-12 |¨?m ZnSe

3 -12 μm

92%

90%

1.0 mm

5-20 |¨?m ZnSe

5 -20 μm

90%

80%

1.0 mm

 

Detector lenses and dome are available on enquiry.

 
Telephone : 0086 -10-62634557 Fax : 0086 -10-65494891 sales@laseroptex.com  
Copyright (C) 2005. Laser Optex Inc. All rights reserved