High-Quality 3-Element Glass Collimating Lens - AR Coated for 405nm-465nm Blue Lasers - M9x0.5 Threaded
Description:
Upgrade your high-power blue laser diode build with this premium 3-element glass collimating lens, specially optimized for blue wavelengths (405nm violet/blue-ray and 445-465nm blue lasers).
Key Features:
Three-element design for superior beam correction: Provides significantly better divergence and a cleaner, tighter beam profile compared to single-element lenses (like G-2).
Anti-Reflective (AR) coating optimized for 400-465nm, maximizing light transmission while minimizing losses and reflections.
High numerical aperture (NA ~0.6) and ~8mm effective focal length for excellent collimation of multi-mode diodes (e.g., NICHIA, Osram, or projector diodes).
Standard M9x0.5 threading – Fits most common 12mm laser diode modules and Aixiz-style housings.
Durable anodized aluminum barrel for easy focusing and secure fit.
Ideal for laser pointers, burners, engravers, projectors, or DIY lab setups requiring low divergence and a round, clean spot over distance.
Benefits vs. Single-Element Lenses:
Much lower beam divergence for better performance at range (visible beam throws farther with less spread).
Cleaner rectangular-to-round spot correction on high-power blue diodes.
~70-80% transmission efficiency (some power trade-off for dramatically improved beam quality).
Condition: Brand new, carefully packaged to prevent dust or scratches. Compatibility: Perfect for 405nm, 445nm, 450nm diodes. Not recommended if maximum raw power is priority (consider G-2 for that).