Description
M9×P0.5 Threaded NIR Collimating Lens — EFL 12.842mm, BBAR 700–1100nm
Our M9-threaded NIR collimator lenses with 12.842 mm effective focal length are engineered for 700–1100 nm laser diodes including 780/850/905/980 nm emitters.
Featuring a molded glass aspheric element with >97% transmission BBAR coating and a precision fine-thread metal housing for in-situ focus adjustment, these compact assemblies deliver low-divergence collimated beams in minimal footprint.
Ideal for LIDAR transmitters, fiber-launch pre-collimators, IR illuminator modules, and OEM NIR LD packaging. Custom EFL, thread (M6/M10/M12), and coating bands (e.g. 400–700nm / 1064nm / 1550nm) available on request.
Specifications:
Mount / Thread: M9 × P0.5 (fine pitch), full or half thread; overall length ≈ 10 mm (typical)
Effective Focal Length (EFL): 12.842 mm (common tolerance ±2%)
Design Wavelength Band: 700–1100 nm (optimized for 780/850/905/980 nm typical)
Lens Element: Single molded glass aspheric (preferred) or AR-coated N-BK7 / Fused Silica plano-convex
Clear Aperture (CA): Ø5.0 – Ø6.0 mm (typical Ø5.5 mm)
Numerical Aperture (NA): 0.20 – 0.35 (matches common 5.6 mm / 9 mm TO-can NIR LD)
Working Distance (WD): ≈ 10.0 – 11.2 mm (adjustable by thread depth)
Coating: BBAR @ 700–1100 nm (Ravg < 0.5% per surface; typical Rs < 0.3% @ 850/980 nm)
Housing Material: Nickel-plated brass or black-anodized aluminum
Transmission: ≥ 97% avg. over coated band
Surface Quality: 60-40 / 40-20 Scratch-Dig
Recommended LD Type: 5.6 mm / 9 mm TO-can NIR LD (780/808/850/905/980 nm), emitter width 3–50 μm
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
