Laser Collimator Lens

Laser Collimator Lens Products

Laser Collimator Lens D20 F50 T3.5

Part No: LensD20F50T3.5

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Laser Collimator Lens Description

A laser collimator lens is an optical component designed to shape a laser beam into a collimated (parallel) output, minimizing divergence over long distances. These lenses are crucial in applications requiring precise beam alignment, such as laser cutting, engraving, medical devices, and scientific instrumentation.

Key Features of Laser Collimator Lenses:
Material:

Made from high-quality optical glass (e.g., N-BK7, fused silica) or specialized coatings for high-power lasers.

Some use aspheric lenses to reduce aberrations.

Focal Length & Beam Diameter:

The lens must match the laser’s divergence and desired collimated beam size.

Short focal lengths produce tighter beams, while longer focal lengths yield wider collimated beams.

Anti-Reflective (AR) Coatings:

Minimize reflections and maximize transmission, especially for high-power lasers.

Precision Alignment:

Proper mounting (e.g., adjustable lens tubes) ensures optimal collimation.

Common Applications:
Laser Alignment Tools (e.g., in construction or machining)

Fiber Optic Coupling (collimating light from fiber lasers)

LIDAR & Metrology Systems (maintaining beam coherence)

Holography & Interferometry (requiring stable beam paths)

Types of Collimating Lenses:
Singlet Lenses – Simple, cost-effective for low-power lasers.

Achromatic Lenses – Correct chromatic aberration for multi-wavelength lasers.

Aspheric Lenses – Reduce spherical aberration for high-precision applications.