Description
Specifications:
Lens Type: Optical Glass Aspherical Singlet Lens (Molded / Precision Polished)
Material: N-BK7 (nd=1.5168) / K9 (H-K9L) / High-Index Crown (Custom)
Diameter (Clear Aperture): 3mm (Ø3mm)
Effective Focal Length (EFL): 2mm / 3mm / 4mm / 5mm / 6mm / 8mm / 10mm / Custom
Back Focal Length (BFL): Specified per design (typically ~1.5–4.5mm)
Numerical Aperture (NA): 0.3 – 0.65 (depends on EFL & clear aperture)
Center Thickness: 0.8mm – 2.5mm (design dependent)
Dimension Tolerance: ±0.02mm
Center Thickness Tolerance: ±0.02mm
Surface Figure (Base Sphere): λ/4 @ 632.8nm
Surface Roughness (RMS): <20nm (Molded) / <5nm (Polished)
Surface Quality (Scratch-Dig): 60-40 / 40-20 / 20-10
Clear Aperture: ≥90% of Ø3mm
Edge Treatment: Ground / Edge Blackened (Optional) / Bevel 0.05mm × 45°
Aspheric Coefficients: Optimized for 635nm wavelength band (available on request)
Coating:
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V-Coating @ 635nm (R<0.25% per surface)
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Broadband AR 400–700nm (Optional)
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Uncoated (Available)Operating Wavelength: Optimized for 635nm (Red Laser Diode)Transmission: >99% per surface with V-CoatOperating Temperature: -40°C to +80°C
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.
We can provide optical lenses, optical prisms, high-precision Powell prisms, right-angle prisms, laser lenses, filters, aspherical lenses, collimating lenses, optical glass lenses, optical reflectors, cylindrical lenses, laser modules, laser heads, optical glued lenses, optical rod mirrors, etc.
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 custom needs,
Contact:Rebecca Xu
