600-1050nm aspherical lens 3mm diameter 2mm focal length D-ZK3 optical glass lens aspherical lens

600-1050nm aspherical lens 3mm diameter 2mm focal length D-ZK3 optical glass lens aspherical lens

Optical Aspherical Lens

3mm diameter aspherical lens

600-1050nm aspherical glass lens

factory offer optical aspheric lens

Ultra-compact high-precision aspherical singlet lens fabricated from Hoya D-ZK3 low-dispersion crown glass (nd≈1.589, νd≈61.2), with 3mm clear aperture and 2mm effective focal length (NA≈0.66), optimized for visible-to-near-infrared 600–1050nm applications.

The aspheric profile eliminates spherical aberration and yields a diffraction-limited spot with higher coupling efficiency than spherical equivalents—ideal for 650/780/850/940nm VCSEL or edge-emitting laser diode collimation, miniature NIR modules, and biometric illumination optics.

Broadband anti-reflection coating 600–1050nm (Ravg<0.5%) on both surfaces. Custom EFL, NA, and coating wavelengths available for OEM micro-optical integration.

Description

600-1050nm aspheric lens 3mm diameter 2mm focal length D-ZK3 optical glass lens aspherical lens

Specifications:

Lens Type: Optical Glass Aspherical Singlet Lens (Molded / Precision Polished)

Material: D-ZK3 (Hoya) nd=1.5891, νd≈61.2 / Equivalent Low-Dispersion Crown Glass / N-BK7 Alternative Available

Diameter (Clear Aperture): 3mm (Ø3mm)

Effective Focal Length (EFL): 2mm (Custom 1.0–50mm available)

Back Focal Length (BFL): Specified per design (typically ~1.4–1.8mm)

Numerical Aperture (NA): ~0.66 (approx., depends on beam clearance)

Center Thickness: 0.7mm – 2.0mm (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 600–1050nm band (available on request)

Coating Options:

Broadband AR 600–1050nm (Ravg<0.5%) ← Standard
V-Coating @ 650nm / 780nm / 850nm / 940nm / 1064nm
Broadband AR 400–700nm / 800–1100nm (Optional)
Uncoated (Available)

Operating Wavelength: 600–1050nm (VIS–NIR)

Transmission: >99% per surface with BBAR coating

Operating 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