Aspheric Condenser Lenses

Steep aspheric lens surfaces produce large angles of refraction and hence short focal lengths.  Aspheric lens surfaces can also be free from spherical aberration.  For these reasons aspheric lenses produce highly efficient low f/number light condensers. They can be used to collimate or focus a lamp output or to collect radiation from a distant point and condense it onto a detector surface.   These aspheric condensers are moulded from high quality B270 optical glass. 

  Only one surface is aspheric; the other side is either a plane or slightly convex spherical surface.   They are supplied uncoated but can be coated with single layer anti-reflection coatings if required.

 A wide range of focal lengths and diameters are available providing apertures in the range f/0.65 to f/1 (see datasheet for common sizes and focal lengths).   Please ask for sizes and focal lengths required as we can supply a wide selection of these lenses. .  We will advise the nearest standard lens to suit your application.  

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