Plano Concave Lenses from Glass Perfection UK

Glass Perfection UK – Optical Glass Manufacturers

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Plano concave 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

Plano Concave Lenses

Plano concave lenses have one flat side and one inward curved face and negative focal length. They are used for image reduction or to spread light.

Concave 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 Length Tolerence	+/-2%

Material:

BKY grade 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 transmittace 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
	Double Concave Lenses
	Meniscus Lenses
	Achromatic Lenses
	Cyndrical Lenses

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