What is the damage threshold of Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A?

Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A has a laser-induced damage threshold (LIDT) of 0.19 J/cm².

What are the physical dimensions of Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A?

Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A dimensions: Diameter: 25.4 mm.

What is the focal length of Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A?

Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A has a focal length of 500.0 mm.

WaveQuanta

Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A

Name: Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A
Brand: WaveQuanta
SKU: MP10621-A
Price: 42.96 SGD
Availability: InStock

MP10621-A

$42.96

In Stock

Key Specifications

Wavelength 400.0nm

Diameter 25.4mm

LIDT 0.19J/cm²

Reflectance 0.5%

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Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted — Model MP10621-A

Operating wavelength 400 nm-700 nm, focal length -500.0 mm, Ø25.4 mm, substrate N-BK7.

Product Description

Optical Material: N-BK7;
Operating Wavelength: 400 nm-700 nm (AR Coating);
Application: imaging, beam expander or reducer, convergence;

The negative meniscus lens from LBTEK consists of two surfaces with similar radii of curvature (the concave surface having a smaller radius than the convex surface), resulting in a negative focal length. Typically used for beam expansion/reduction, focal length extension, or numerical aperture reduction, this lens minimizes spherical aberration when the convex surface faces incident light during beam expansion/collimation or divergent light applications, while the concave surface should face incident light for converging beam collimation. Both surfaces are coated with 400-700 nm AR coatings to reduce surface reflectivity. While N-BK7 is the most common lens material for visible light and near-infrared applications, LBTEK manufactures these lenses using both N-SF11 and N-BK7 materials for diverse optical requirements. All lenses undergo precision machining and strict quality control, ensuring LBTEK delivers high-quality optical products at competitive prices.

Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted

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

Address：Building A6, Huanchuang Enterprise Plaza, Yuelu Idstrict, Changsha

Clear Aperture	90% CA
Damage Threshold	0.19J/cm2@515nm, 290fs, 100Hz, Ø10.72μm (100 Pulses)
Diameter Tolerance	+0.00/-0.10 mm
Clear Aperture	90% CA
Operating Wavelength	400 nm-700 nm
Diameter	25.4 mm
Eccentricity	≤3 arcmin
Design Wavelength	587.6 nm
Damage Threshold	0.19J/cm2@515nm, 290fs, 100Hz, Ø10.72μm (100 Pulses)

Low damage threshold detected (0.19 J/cm²). For high-power applications, consider WaveQuanta premium IBS-coated optics with enhanced damage resistance.

Specification Sheet PDF — Download

3D Model (STL) STL — Download

Curve - N-BK7 UN

Product Family: Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm (9 variants)

Product ▴▾	SKU	Size ▴▾	Clear Aperture ▴▾	Operating Wavelength ▴▾
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10615-A	`MP10615-A`	25.4 mm	90% CA	400 nm-700 nm	View
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10613-A	`MP10613-A`	25.4 mm	90% CA	400 nm-700 nm	View
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10614-A	`MP10614-A`	25.4 mm	90% CA	400 nm-700 nm	View
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10618-A	`MP10618-A`	25.4 mm	90% CA	400 nm-700 nm	View
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10619-A	`MP10619-A`	25.4 mm	90% CA	400 nm-700 nm	View
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10620-A	`MP10620-A`	25.4 mm	90% CA	400 nm-700 nm	View
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10621-A Current	`MP10621-A`	25.4 mm	90% CA	400 nm-700 nm
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm, Unmounted MP10623-A	`MP10623-A`	25.4 mm	90% CA	400 nm-700 nm	View
Negative Meniscus Lens, N-BK7, AR Coating: 400 nm-700 nm MMP10615-A	`MMP10615-A`	25.4 mm	90% CA	400 nm-700 nm	View