Biconvex Lenses Optical Glass Lens Manufacturer

PRODUCT CATEGORIES

INOUIRY

Biconvex lenses are commonly used in many limited imaging applications.

Substrate Material	H-K9L, Quartz, Calcium fluoride, Zinc selenide	Diameter	5-800mm (customized)
Diameter Tolerance	+0.0/-0.1 mm	Thickness Tolerance	±0.1 mm
Focal Length Tolerance	±1%	Clear Aperture	>90%
Surface Quality	60/40-20/10	Surface Accuracy	λ/4- λ//8
Lens Centering Error	<3'	Coated	Uncoated, VIS, NIR, SWIR

H-K9L Biconvex Lenses

Material: N-BK7 glass; Focal length range from 10mm to 1000mm;

Available sizes: Ø6mm, Ø9mm, Ø10mm, Ø1/2 inch (Ø12.7mm), Ø1 inch (Ø25.4mm), Ø20mm, Ø30mm, Ø40mm, and Ø2 inch;

Available uncoated or with three antireflective coatings: Uncoated: 350nm – 2.0 µm; A-coating: 350-700 nm; B-coating: 650-1100 nm; C-coating: 1050-1700 nm

Quartz Fused Biconvex Lenses

The UV fused silica biconvex lens exhibits high transmittance in the deep ultraviolet and produces virtually no laser-induced fluorescence (measurement wavelength 193nm), making it ideal for applications from ultraviolet to near-infrared. In addition, compared with N-BK7, UV-grade fused silica has better uniformity and a lower coefficient of thermal expansion.

Material: UV fused silica; Focal length range from 4mm to 1000mm;

Available sizes: Ø4mm, Ø5mm, Ø6mm, Ø6.3mm, Ø10mm, Ø15mm, Ø0.5 inch (Ø12.7mm), Ø16mm, Ø1 inch (Ø25.4mm), and Ø2 inch (Ø50mm);

Available uncoated or with four antireflective coatings: Uncoated: 185nm – 2.1 µm; UV coating: 250-450 nm; VIS coating: 350-700 nm; NIR coating: 650-1100 nm; SWIR coating: 1000 – 1650 nm.

Calcium Fluoride Caf2 Biconvex Lenses

Calcium fluoride has high transmittance in the ultraviolet to infrared band (0.12-10 μm).

Available sizes: Ø12.7mm, Ø25.4mm;

Available versions with or without antireflective coating: Uncoated: 0.12-10µm; IR1 coating: 3-5μm;

Zinc Selenide ZnSe Biconvex Lenses

Zinc selenide ZnSe glass exhibits high light transmittance in the 0.5-15μm range, with particularly low absorption at a wavelength of 10.6μm. Therefore, it is commonly used in the fabrication of infrared windows, radomes, and infrared optical components.

Available sizes: Ø12.7mm, Ø25.4mm;

Available versions with or without antireflective coating: Uncoated: 0.12-10µm; IR2 coating: 8-12μm;