Login/Register
facebook page
company video for knight optical

Fresnel Lenses - Precision range

Fresnel lenses replace the curved surface of a conventional lens with a series of concentric grooves, moulded into the surface of
lightweight plastic sheets. These grooves act as individual refracting surfaces when viewed in cross section. Our large-aperture, lightweight plastic lenses are often used as collimators and collectors in sensor or communication systems.  
The below precision range Fresnel lenses offer very close tolerances and a better surface finish. These properties make the precision range well suited for more demanding applications such as projection systems and simulators. All below stock are uncoated.

Specifications:

 

Material: PMMA Acrylic
Focal Length: Standard Range: ± 5% Precision Range: ± 1%
Design condition: Parrallel light on grooved side

PDF

Custom

 

fresnel.jpg

 

See Also:

Beam Dividers and Fresnel Prisms

Part No. Focal length Effective Aperture Overall size (mm) Facet width (mm) Thickness (mm) Material Price (Ex.VAT) Buy Now Get Quote
LFQ2244 22.2 44.4 dia 50 dia 0.64 2 Acrylic £54.50
QTY:
Quote Me
LFQ2561 25.4 61.5 dia 80 dia 0.51 2 Acrylic £42.00
QTY:
Quote Me
LFQ40100 40 100.0 dia 110 x 110 0.5 2 Acrylic £63.90
QTY:
Quote Me
LFQ100200 100 200.0 dia 210 x 210 0.5 2 Acrylic £79.90
QTY:
Quote Me
LFQ102137 101.6 135 dia 150 da 0.51 2 Acrylic £48.40
QTY:
Quote Me
LFQ150300 150 310 x 100 310 x 110 0.3 2 Acrylic £96.00
QTY:
Quote Me
LFQ152203 152.4 203.2 dia 220 dia 0.25 2 Acrylic £59.00
QTY:
Quote Me
LFQ200400 200 400.0 dia 410 x 410 0.5 2 Acrylic £103.80
QTY:
Quote Me
LFQ254254 254 254.0 dia 315 dia 0.25 2 Acrylic £60.40
QTY:
Quote Me
LFQ279406 279.4 406.4 dia 425 dia 0.51 2 Acrylic £141.90
QTY:
Quote Me
LFQ305310 304.8 310.0 dia 315 dia 0.51 2 Acrylic £65.60
QTY:
Quote Me
LFQ400387 400 387.0 dia 410 dia 0.51 2 Acrylic £109.27
QTY:
Quote Me
LFQ400550 400 500 x 450 510 x 460 0.5 2 Acrylic £118.80
QTY:
Quote Me
LFQ500500 500 500.0 dia 510 x 510 0.5 2 Acrylic £127.90
QTY:
Quote Me
LFQ600600 600 600 x 600 610 x 610 0.5 2 Acrylic £150.90
QTY:
Quote Me
LFQ610464 609.6 463.6 465 dia 0.51 2 Acrylic £115.80
QTY:
Quote Me

Mini Basket ::

Items:0

Total£0.00


View BasketView Basket

CheckoutView Checkout

New Products ::

optics pdf library

Knight Optical (UK) Ltd,
Roebuck Business Park, Harrietsham, Kent, ME17 1AB, England
Phone: +44 (0)1622 859444 • Fax: +44 (0)1622 859555
E-mail: info@knightoptical.co.uk