products

BK7 ZF2 Or ZF5 Custom Optical Components Positive Achromatic Lenses

Basic Information
Place of Origin: Wuhan,China
Brand Name: Wuhan Siwer Optics
Model Number: Achromatic lens
Minimum Order Quantity: 10 pieces
Price: 50-300USD/piece
Packaging Details: 1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler
Delivery Time: 4-6 weeks
Payment Terms: T/T, Western Union
Supply Ability: 2000 pieces/month
Detail Information
Material: BK7 ZF2 Or ZF5 Size Tolerance: +/-0.1mm
Chamfer: 0.2-0.5mm Surface Quality: 40/20
Surface Flatness: Lambda/4 In 25.4mm Centration: 3 Arc Min
Standard Coating: AR@400-700nm Or Customized Size Range: 3-220mm
Standard Diameter: 12.7,25.4,30mm
High Light:

achromatic lens

,

achromatic cylindrical lens


Product Description

 

Acromatic Lens


Achromatic Lens is an achromatic consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberration at two well-separated wavelengths, usually in the blue and red region of the spectrum. Focal length is constant at those two wavelengths and focal length shifts are virtually eliminated across the visible wavelengths. One frequent use is to achieve diffraction limited focusing of a laser beam.

Negative Achromats are typically used when there is a need to eliminate chromatic aberration. In addition to reducing chromatic aberration at the design wavelengths, spherical aberration and coma are greatly reduced.

 

BK7 ZF2 Or ZF5 Custom Optical Components Positive Achromatic Lenses 0

 

Optical AR Coatings

a) Uncoated,The surface reflectivity of uncoated visible lenses(Refractive index=1.5) is about 4%.

Click on the link to see how to calculate reflectivity

b) AR/AR@400-700nm,Tavg>99.4%

c) AR/AR@450-650nm,Tavg>99.6%

d) AR/AR@400-1000nm,Tavg>98.5%

e) We can also customize high damage threshold antireflective coatings

BK7 ZF2 Or ZF5 Custom Optical Components Positive Achromatic Lenses 1

Optical Properties of acromatic lens

Material Optical glass
AR Coating Range 400-700nm or customized
Reflectance over
AR Coating Range @ 0° AOI

Ravg<0.5%

Diameter Tolerance +0.0/-0.1 mm
Thickness Tolerance ±0.1 mm
Focal Length Tolerance ±2%
Surface Quality 40/20 Scratch-Dig
Surface Flatness
(Plano Side)
λ/2 at 633nm
Spherical Surface Powerc
(Convex Side)
1.5λ at 633nm
Surface Irregularity
(Peak to Valley)
λ/2 at 633nm
Centration <3 arcmin
Clear Aperture >Ø10.16 mm (Ø1/2" Lenses)
>Ø20.32 mm (Ø1" Lenses)
Design Wavelength 546nm

 

Lens Grinding

BK7 ZF2 Or ZF5 Custom Optical Components Positive Achromatic Lenses 2

Lens High Speed Polishing

BK7 ZF2 Or ZF5 Custom Optical Components Positive Achromatic Lenses 3

Optical Coating

BK7 ZF2 Or ZF5 Custom Optical Components Positive Achromatic Lenses 4

 

Contact Details
Jason