Description
M9×P0.5 Threaded Collimating Lens for 520nm/532nm Green Lasers — BBAR 515–550nm
Our M9-threaded green-laser collimator lenses are optimized for 515–550 nm sources including 520 nm direct green LDs and 532 nm DPSS micro-chip lasers.
Featuring a molded glass aspheric element with >97% transmission BBAR coating at 520/532 nm and a precision M9×0.5 fine-thread metal housing for focus adjustment, they deliver tight beam collimation in a compact Ø9 mm × 8 mm barrel.
Ideal for green dot/line modules, high-visibility alignment tools, and OEM green LD packaging. Custom EFL (4/6/8/10 mm), threads (M6/M10/M12), and dual-band coatings available on request.
Typical Applications:
Specifications:
Mount / Thread: M9 × P0.5 (fine pitch), full or half thread; overall length ≈ 8 mm (typical)
Effective Focal Length (EFL): Commonly 4.0 / 6.0 / 8.0 mm (custom EFL available; short EFL ≈4–6 mm typical for small-emitter green LD)
Design Wavelength: 515–550 nm (optimized @ 520 nm or 532 nm)
Lens Element: Molded glass aspheric (L-BAL35 / D-ZK3 / H-LaK) or AR-coated N-BK7 plano-convex
Clear Aperture (CA): Ø3.0 – Ø5.0 mm (typical Ø4.0 mm for EFL 6 mm)
Numerical Aperture (NA): 0.20 – 0.40 (matches 5.6 mm TO-can green LD or micro-chip)
Working Distance (WD): ≈ EFL − 1.5~2.5 mm (adjustable by thread depth)
Coating: BBAR @ 515–550 nm (Ravg < 0.5% per surface; Rs < 0.3% @ 520/532 nm), MgF₂ optional
Housing Material: Nickel-plated brass or black-anodized aluminum
Transmission: ≥ 97% @ design wavelength
Surface Quality: 60-40 / 40-20 Scratch-Dig
Recommended Source: 5.6 mm / 9 mm TO-can green LD (505–535 nm) or 532 nm micro-chip DPSS
Green Laser Modules — 520/532 nm dot, line, cross laser pointers and alignment modules
Industrial Alignment & Positioning — Green guide lights for high-visibility alignment (vs red)
OEM Green LD Packaging — Screw-in collimator for laser diode holders (M9 standard)
Machine Vision / Structured Light — Green line generators for high-contrast projection on dark surfaces
Scientific / Demonstration — DPSS 532 nm or direct green LD beam collimation in labs
For Collimating lens, the focal length we have 3.77mm,4.02mm, 4.39mm,6mm,6.2mm ,6.5mm,8mm, 8.3mm, 9.8mm, 10mm,11.2mm and 12mm.
Check the stock lenses in the following files.
Contact:Rebecca Xu
Email: rebecca@realpoo.cn
