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Optical BK7 Double-concave lens - WHL

Materials: BK7 optical glass, Design Wavelength: 546.1nm, Design Index: 1.5187, Diameter Tolerance: +0/-0.1mm - more info check here: http://www.buymeasuringtools.com/Optical-BK7-Double-concave-lens-10220455/

Quick Brief

Place of Origin: Jilin China (Mainland) Brand Name: Worldhawk Model Number: WHL Material: optical glass Surface Quality: 60/40 Dimension Tolerance: ± 0.1mm Angle Tolerance: +/- 3 arc min Flatness: 1/4 lamda

Product Features:

Materials: BK7 optical glass

Design Wavelength: 546.1nm

Design Index: 1.5187

Diameter Tolerance: +0/-0.1mm

Business Terms:

Minimum Order Quantity: 10 Piece/Pieces

Supply Ability: 1000 Piece/Pieces per Week

Payment Terms: T/T

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Optical BK7 Double-concave lens
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Product Packagings & Delivery Terms:

Packaging Detail: carton box

Delivery Detail: 15-30days

Specifications and Product Details:

Bi-Concave Lenses

Negative lens with the form most suited to producing diverging light or a virtual image, where the input light is converging.

Materials: optical glass

Design Wavelength: 546.1nm

Design Index: 1.5187

Diameter Tolerance: +0/-0.1mm

Focal Length: ±2%

Centration: < 3 arc minutes

Clear Aperture: >85%

Surface Figure: l/4 @ 632.8nm

Bevel: 0.2mm to 0.5mm×45°

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