355440-AB

Name: Thorlabs 355440-AB — f = 2.8 mm, numerical aperture = 0.26/0.52, WD = 2.0/7.1 mm, Unmounted Aspheric Lens, ARC: 400 - 1100 nm
Brand: Thorlabs

Thorlabs 355440-AB — f = 2.8 mm, numerical aperture = 0.26/0.52, WD = 2.0/7.1 mm, Unmounted Aspheric Lens, ARC: 400 - 1100 nm

The Thorlabs 355440-AB is an unmounted aspheric lens featuring a focal length of 2.8 mm, numerical apertures of 0.26 and 0.52, and working distances of 2.0 and 7.1 mm. This optic includes an anti-reflective coating designed for the 400 to 1100 nm wavelength range and weighs 0.04 lbs per unit. Please submit the exact part number, quantity, and application requirements to request a quote.

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Manufacturer: Thorlabs
Part number: 355440-AB
Product series: f = 2.8 mm, numerical aperture = 0.26/0.52, WD = 2.0/7.1 mm, Unmounted Aspheric Lens, ARC: 400 - 1100 nm
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Technical Specifications

Product Name: f = 2.8 mm, numerical aperture = 0.26/0.52, WD = 2.0/7.1 mm, Unmounted Aspheric Lens, ARC: 400 - 1100 nm
Lifecycle Status: Refer to current manufacturer documentation
Release Date: April 7, 2026
Package Weight: 0.04 lbs Each

Engineering context

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Our sourcing response is prepared against Thorlabs 355440-AB. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.