AC254-075-E3

Name: Thorlabs AC254-075-E3 — ZnSe-ZnS Air-Spaced Achromatic Doublet, ARC: 7-12 µm, f = 75 mm
Brand: Thorlabs

Thorlabs AC254-075-E3 — ZnSe-ZnS Air-Spaced Achromatic Doublet, ARC: 7-12 µm, f = 75 mm

The Thorlabs AC254-075-E3 is a ZnSe-ZnS Air-Spaced Achromatic Doublet featuring a 7 to 12 µm antireflection coating and a focal length of 75 mm, released on February 16, 2023. This component reached its discontinued lifecycle status on August 7, 2025, following its final web presentation. Submit the exact part number, quantity, and application requirements for a quote.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Thorlabs references — within one business day.

Manufacturer: Thorlabs
Part number: AC254-075-E3
Product series: ZnSe-ZnS Air-Spaced Achromatic Doublet, ARC: 7-12 µm, f = 75 mm
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Verified configuration

Technical Specifications

Product Name: ZnSe-ZnS Air-Spaced Achromatic Doublet, ARC: 7-12 µm, f = 75 mm
Lifecycle Status: Discontinued
AC254-075-E3 was discontinued on August 7, 2025.: View its last web presentation.
Last Web Presentation: Open
Release Date: February 16, 2023
Discontinued Date: August 7, 2025

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Thorlabs AC254-075-E3. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.