Description
M9×P0.5 NIR Collimating Lens — EFL 4.0mm, Ø6.33mm Element, BBAR 700–1100nm
Our M9-threaded NIR collimator lenses with 4.0 mm effective focal length and Ø6.33 mm glass aspheric element are engineered for 700–1100 nm laser diodes including 780/850/905/980 nm emitters.
Featuring >97% transmission BBAR coating across the NIR band and a precision M9×0.5 fine-thread metal housing for focus adjustment, these ultra-compact assemblies deliver tight beam collimation in minimal footprint — ideal for LIDAR seed sources,
IR illuminator modules, fiber-launch pre-collimators, and OEM NIR LD packaging.
Custom EFL (3.77 / 6.2 / 8.0 / 12.84 mm etc.), threads (M6/M10/M12/M14), and narrow-band coatings (850 nm / 905 nm / 1064 nm) available on request.
Specifications:
Mount / Thread: M9 × P0.5 (fine pitch), full or half thread; overall length ≈ 10 mm
Lens Element Diameter: Ø6.33 mm (clear aperture typically Ø5.0–Ø5.8 mm)
Effective Focal Length (EFL): 4.0 mm (±2% tolerance)
Design Wavelength Band: 700–1100 nm (optimized for 780/850/905/980 nm typical)
Lens Element: Molded glass aspheric (preferred) or AR-coated N-BK7 / Fused Silica plano-convex
Numerical Aperture (NA): 0.28 – 0.38 (matches typical 5.6 mm / 9 mm TO-can NIR LD)
Working Distance (WD): ≈ 2.8 – 3.2 mm (adjustable by thread depth)
Coating: BBAR @ 700–1100 nm (Ravg < 0.5–0.75% per surface; 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: 5.6 mm / 9 mm TO-can NIR LD (780/808/850/905/980 nm), emitter width 3–50 μm
We are professional manufacture on the optical lenses &lasers for over 20 years experience.
With the advanteges,we offer optical products in the fileds of University laboratory, Industry, Scientific research,Medical treatment, Mechanical equipments, lasers and Construction industry and so on.
Looking forward to communicating whether we have the opportunity to cooperate. For the lens/laser products you need, I would like to quote our competitive price.
Please contact for any custyom needs,
Contact:Rebecca Xu
Email: rebecca@realpoo.cn
