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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25mm Dia. x 3mm Thick, 8-12μm AR Coated & DLC Coated, Ge Window

TECHSPEC® Diamond-Like Carbon (DLC) Coated Germanium Windows

TECHSPEC® Diamond-Like Carbon (DLC) Coated Germanium Windows

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€556,00
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€556,00
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€500,50
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Bevel:
Protective as needed
Clear Aperture (%):
90
Clear Aperture CA (mm):
22.50
Diameter (mm):
25.00 +0.0/-0.1
Thickness (mm):
3.00 ±0.1
Coating:
S1: DLC Coating
S2: BBAR (8000-12000nm)
Coating Specification:
AR: Ravg ≤0.5% @ 8000 - 12000nm
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
780
Parallelism (arcmin):
<1
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Germanium (Ge)
Surface Flatness (P-V):
λ/10 @ 10.6μm
Surface Quality:
60-40
Type:
Protective Window
Wavelength Range (nm):
8000 - 12000
Coating Abrasion:
AR: Moderate, per MIL-C-48497A Paragraph 4.5.3.3
DLC: Severe, per MIL-C-675C Paragraph 4.5.10
Coating Adhesion:
AR: per MIL-C-48497A Paragraph 4.5.3.1
DLC: per MIL-M-13508C Paragraph 4.4.6
Coating Humidity:
AR: per MIL-C-48497A Paragraph 4.5.3.2
DLC: ≥24 Hours per MIL-C-675C paragraph 4.5.8
Coating Salt Solubility:
AR: N/A
DLC: ≥24 Hours Immersion per MIL-C-675C paragraph 4.5.7
Coating Salt Spray:
AR: N/A
≥24 Hours per MIL-C-675C paragraph 4.5.9
Coating Solubility and Cleaning:
AR: per MIL-C-48497A Paragraph 4.5.4.2
DLC: N/A
Coating Temperature (°F):
AR: -80 to +160 per MIL-C-48497A Paragraph 4.5.4.1
DLC: -80 to +160 per MIL-M-13508C Paragraph 4.4.4
Coating Wiper Durability:
AR: N/A
DLC: ≥5,000 Wipes of Sand/Slurry per TS-1888
Note:
Arrow on substrate edge points towards DLC coated surface

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 235:

Product Family Description

TECHSPEC® Diamond-Like Carbon (DLC) Coated Germanium Windows have been designed with durability in mind. Featuring a high efficiency broadband anti-reflection coating on one surface and a specially designed DLC coating on the other surface, these windows feature excellent transmission and environmental resistance. The DLC coated surface is designed to withstand temperature cycling from -80 to +160°F, salt spray for a continuous period of 24 hours, salt solubility for an immersion period of 24 hours, and 5,000 wiper oscillations in a sand and slurry mixture. Further, TECHSPEC DLC Coated Germanium Windows meet the MIL-C-675C requirements for severe abrasion.

Technical Information

Coating Specifications
Specification AR Coating DLC Coating
Adhesion per MIL-C-48497A Paragraph 4.5.3.1 per MIL-M-13508C Paragraph 4.4.6
Abrasion Moderate, per MIL-C-48497A Paragraph 4.5.3.3 Severe, per MIL-C-675C Paragraph 4.5.10
Humidity per MIL-C-48497A Paragraph 4.5.3.2 ≥24 Hours per MIL-C-675C paragraph 4.5.8
Salt Solubility - ≥24 Hours Immersion per MIL-C-675C paragraph 4.5.7
Salt Spray - ≥24 Hours per MIL-C-675C paragraph 4.5.9
Temperature (°F) -80 to +160 per MIL-C-48497A Paragraph 4.5.4.1 -80 to +160 per MIL-C-48497A Paragraph 4.5.4.1
Solubility and Cleaning per MIL-C-48497A Paragraph 4.5.4.2 -
Water Solubility 24 Hours, per MIL-C-48497A Paragraph 4.5.5.3 -
Wiper - ≥5,000 Wipes of Sand/Slurry per TS-1888