Meniscus LensesGlass Perfection UK – Optical Glass Manufacturers
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Meniscus Lenses from Glass Perfection, a UK Company which manufactures Optical Windows, Filters and Components for production, custom fabrication or from stock.

Specialising in polished plano windows in a wide range of materials with over 20 years manufacturing experience, we offer low cost volume production.

Components
Lenses
Windows
Prisms
Beam Splitters
Polarizers
Waveplates
Meniscus Lenses
Positive Meniscus Lenses: Negative Meniscus Lenses:
Meniscus Lens

o: diameter
tc: centre thickness
te: edge thickness
P: principal point
f: focal length
fb: back focal point
fp: focal Point

Specifications:

Diameter Tolerence: +0mm - 0.25mm
Edge/Centre Thickness Tolerence: +/- 0.25mm
Edge Finish: fine ground, beveled
Clear Aperture Diameter: 80% of central diameter
Surface Figure: ^/4 @ 632.8 nm
Surface Quality: 60-40 scratch and dig
Bevel: 0.25mm x 45 degree
Focal Length Tolerence: +/-2%
Back Focal Lenght Tolerence +/-2%

Material:

BK 7grade A optical glass - n=1.5183+/-0.0005n (@546.1nm)
High purity uv grade fused silica - n=1.4608+/-0.0005 (@546.1nm)

Anti-reflection Coating Available.

To improve transmittance we can supply your lenses coated with a single layer (broad band) or multi layer (narrow band) anti-reflection coating on both sides.


 
Plano Convex Lenses
Double Convex Lenses
Plano Concave Lenses
Double Concave Lenses
Achromatic Lenses
Cyndrical Lenses
   
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