Infrared Germanium Ge Lenses Window 15mm 25mm 75mm 150mm

Product type: Flat Lens. Application: Thermal Image. Model: SFY7Y66.

Overview

The Infrared Germanium Ge Lenses Window 15mm 25mm 75mm 150mm is supplied as an optical lens made from Germanium. Listed geometry: window shape. Optical / electrical data: transmittance >95%. Coating: HC; surface quality 60-40; flatness 1/4 Lambda. Typical applications: Thermal Image. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

Specifications

Technical data

What to specify when you request a quote

• Material — listed as “Germanium”; name the glass or crystal.
• Geometry — give diameter, focal length or radii, angles and tolerances.
• Surface figure — listed as “60-40”; quote surface figure (λ) and scratch-dig.
• Centring and edges — state centration and edge chamfer.
• Coating — listed as “HC”; list the band and reflectance or transmission target.

Engineering guides for this part

For material grades and coating options, see Infrared Window Glass: Material Options for Optical Sensors & Parts. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Quartz Glass Windows for High-Temperature Appliance Modules. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is Infrared Windows.

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