D-ZK3 8.5mm diameter focal length 15mm aspherical lens wavelength 530nm optical glass lens

D-ZK3 8.5mm diameter focal length 15mm aspherical lens wavelength 530nm optical glass lens

Optical Aspherical Lens

custom 8.5mm diameter aspherical lens

custom 530nm aspherical glass lens

factory offer optical aspheric lens

High-precision optical glass aspherical singlet lens molded or polished from Hoya D-ZK3 (Nd=1.5891, νd≈61.2) low-dispersion crown glass, with 8.5mm clear aperture and 15mm effective focal length.

Aspheric profile eliminates spherical aberration and improves imaging performance versus spherical equivalents.

Optimized for 530nm green wavelength applications—such as green laser diode collimation, DPSS frequency-doubled systems, and visible-light compact imaging—with V-coating or broadband AR 400–700nm.

Ideal for green laser modules, miniature camera objectives, and OEM visible optical assemblies.

Description

D-ZK3 8.5mm diameter focal length 15mm aspherical lens wavelength 530nm optical glass lens

Specifications:

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

Material: D-ZK3 (Hoya) / Equivalent Low-Dispersion Crown Glass (nd≈1.589, νd≈61) / N-BK7 Alternative Available

Diameter (Clear Aperture): 8.5mm (Ø8.5mm)

Effective Focal Length (EFL): 15mm (Custom 8–100mm available)

Back Focal Length (BFL): Specified per design (typically ~13–14.5mm for EFL=15mm)

Numerical Aperture (NA): ~0.26–0.30 (depends on beam clearance)

Center Thickness: 1.8mm – 4.5mm (design dependent)

Dimension Tolerance: ±0.02mm / ±0.05mm

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 Ø8.5mm

Edge Treatment: Ground / Edge Blackened (Optional) / Bevel 0.1mm × 45°

Aspheric Coefficients: Optimized for 530nm visible band (available on request)

Coating Options:

V-Coating @ 530nm (R<0.25% per surface)
Broadband AR 400–700nm (Ravg<0.5%)
MgF₂ AR @ 550nm
Uncoated (Available)

Operating Wavelength: Optimized for 530nm Green (Visible Band 400–700nm)

Transmission: >99% per surface with V-Coat/BBAR

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