LBTEK-Your Trusted Partner For Optoelectronic Experiments!

Product Description

Optical Material: N-BK7
Operating Wavelength: 400 nm-700 nm (AR Coating)
Application: Imaging, beam expansion or reduction, convergence

A positive meniscus lens is composed of two surfaces with similar radii of curvature (the concave surface has a larger radius of curvature than the convex surface) and possesses a positive focal length. It is commonly used to reduce the focal length of another lens, increase the numerical aperture, and for related applications. To minimize spherical aberration, when used in beam expansion, beam reduction, or diverging collimated light applications, the beam should be incident on the convex surface of the lens; when used for converging light collimation, the beam should be incident on the concave surface. N-BK7 is the most common lens material, widely used in visible and near-infrared applications. LBTEK selects N-BK7 to manufacture various lenses, all of which are finely processed with strict quality control. LBTEK ensures the provision of high-quality lens products to users at reasonable prices.

Attribute

Optical component materialN-BK7

Surface finish (scratches/pits)40/20

Curved Aperture3

Focal length tolerance±1%

Local surface irregularity0.5

Design wavelength587.6 nm

Eccentricity≤3 arcmin

Positive Meniscus Lens, N-BK7, AR coating: 400 nm-700 nm

Substrate Material: N-BK7
Operating Wavelength: 400 nm-700 nm

LBTEK Positive Meniscus Lenses are primarily used to minimize spherical aberration. When used in combination with another lens, the positive meniscus lens can reduce the focal length and increase the system's numerical aperture (NA) without introducing significant spherical aberration. When used to converge collimated light, the convex surface of the lens should face the direction of the light source to minimize spherical aberration.

LBTEK Lens Mounted on a Fixed Lens Holder

	Product Model	Diameter	Focal length	Unit Price	Compare	Lead Time
	MPML10613-A	25.4 mm	100.0 mm	$43.54		6 weeks

Positive Meniscus Lens, N-BK7, AR coating: 400 nm-700 nm, unmounted

Substrate Material: N-BK7
Operating Wavelength: 400 nm-700 nm

The LBTEK Positive Meniscus Lens is primarily used to minimize spherical aberration. When used in combination with another lens, the positive meniscus lens can reduce the focal length and increase the system's numerical aperture (NA) without introducing significant spherical aberration. When converging collimated light, the convex surface of the lens should face the direction of the light source to minimize spherical aberration. All circular lenses from LBTEK can be mounted in LBTEK Standard Lens Tubes, fixed lens mounts, and various coaxial mounting plates. Customers can choose the optimal mounting method for different application scenarios.

LBTEK lens not installed, suitable for building compact systems

Product Model	Diameter	Focal length	Unit Price	Lead Time
PML10624-A-SP New	25.4 mm	236 mm	$28.76	3 weeks
PML10623-A	25.4 mm	1000.0 mm	$28.76	6 weeks
PML10621-A	25.4 mm	500.0 mm	$28.76	6 weeks
PML10620-A	25.4 mm	400.0 mm	$28.76	6 weeks
PML10619-A	25.4 mm	300.0 mm	$30.72	6 weeks
PML10618-A	25.4 mm	250.0 mm	$28.76	6 weeks
PML10613-A	25.4 mm	100.0 mm	$31.77	6 weeks