Optical Double-concave lens WH-DJ56

Optical Double-concave lens - WH-DJ56

1.Material:BK7,K9,Quartz, 2.3mm to 200mm, 3.Surface Quality:40/20,20/10, 4.Aperture:1-5 - more info check here: http://www.buymeasuringtools.com/Optical-Double-concave-lens-10224331/

Quick Brief

Place of Origin: Jilin China (Mainland) Brand Name: Worldhawk Model Number: WH-DJ56 Material: Glass Usage: Optical Structure: Double Concave Shape: Plano

Product Features:

1.Material:BK7,K9,Quartz

2.3mm to 200mm

3.Surface Quality:40/20,20/10

4.Aperture:1-5

Business Terms:

Port: Changchun,China

Minimum Order Quantity: 10 Piece/Pieces samples are available

Supply Ability: 50000 Piece/Pieces per Month

Payment Terms: L/C,T/T,Western Union,paypal

Contact Supplier

Specifications and Product Details:

Double-concave lens

Double-concave lens, also named bi-concave or symmetric-concave

lens,with two concave surfaces with identical radii, is used to diverge

thecollimated incident light and is best to use with the divergent incident lightA reduced sized virtual image will be seen through this lens. The materials can be BK7 or UV-grade synthetic fused silica.

It is commonly used to expand light or increase focal length

in optical systems. Bi-concave lenses are good to use on many

devices of optical display/imaging systems and beam expanders etc.

AR or NIR coatings can be order for specific applications.

Material--------------------BK7 Grade A or equivalent optical glasses

Design Wavelength-------480-650nm

Diameter Tolerance-------±0.1mm, ±0.15mm for Dia.≥75mm

Paraxial Focus Length-----±2% @546.1nm

Centration-----------------<3 arc minutes

Clear Aperture------------->80%

Surface Figure-------------λ/4 @632.8nm

Surface Quality------------60/40~40/20 scratches and dig