LOHQ INFRARED GRADE OPTICAL

Infrared fused silica windows with low "OH" content are great for applications requiring IR transmission around 3600nm. This material has < 5 (ppm) OH content. Fused Silica windows are preferred over other glasses because of its transparency to ultraviolet radiation. Other advantages include a higher abrasion resistance and a low coefficient of thermal expansion, making them very resistant to thermal shock.

Dynasil®: LOHQ Infrared Grade Optical Fused Quartz
Glass Code: Dynasil® Low OH Infrared Grade
LOHQ
type
Fused Quartz
Color
Clear
Principal Use
Qptics

Bubbles

Class (DIN 58927)
0.1
Sum of CSA (mm2 / cm3)
< 0.1
Max. diameter (mm) Bubbles < .01mm not counted
.5
Striae: (MIL - G - 174A) in functional direction (i.e. direction of use). The direction of use should be specified at time of enquirey.
B
Granularity
Faint
Residual Strain (mm / cm)
4 - 10
Fluorescence (254 nm Excitation)
Blue / Violet

Transmission

Incl. Fresnel Reflection Losses (10mm Path)

Infrared (2600 - 2800 nm)
> 85%
Visible
> 91%
[OH] Content (ppm)
< 5
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