Meniscus Lenses from Glass Perfection UK

Glass 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:

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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