A4 Fresnel Lens
A4 Fresnel Lens
£ 3.99
/
Pickup available at 112 West Princes Street
Usually ready in 4 hours
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A Fresnel Lens is a type compact lens originally developed for use in lighthouses. Our Lenses are spherical, designed to offer a magnification of 3x, with ring shaped segments that focuses light towards the centre of the lens. Towards the edges, there will be a distortion of the image caused by diffraction around the perimeter. All our lenses will produce a sharp image in the centre, albeit not as clear as their spherical glass counterparts.
XLL format (nearly A4), only 0.6 mm thick and 39 g in weight. Magnifies a whole book page twice. Caution: this lens is also a very strong burning-glass that ignites dry wood instantly!
Shipping Costs
We ship almost anywhere in the world (subject to government restrictions) via Royal Mail and our couriers. Expected delivery times given are based on Royal Mail's guidance for service delivery times.
Free Shipping When You Spend Over £40
All orders placed before 12 pm and over £40.00 in value will have the option for free delivery. Offer applies to UK mainland only.
UK Mainland Shipping Rates
Within the UK, we offer the following delivery services:
Standard Delivery, 2-3 days - £2.95
First Class Delivery, 1-2 days - £3.95
Express Courier Delivery, 24 hours - £7.99 (please note: Orders placed after 12:00 noon on Thursday may not reach you until Monday as couriers don't deliver to all areas on a Saturday or Sunday) (excludes Highlands & Irelands)
Saturday Courier Delivery - £16.99
Islands, Highlands & Northern Ireland Shipping Rates
Standard Delivery, 3-4 days - £3.95
First Class Delivery, 2-3 days - £4.95
Rest Of The World Shipping Rates
If you would like goods shipping outside the UK, Highlands Islands & N. Ireland, simply type your address into the check out and the shipping costs will be added to your order automatically. Our overseas orders are all sent with a Signature Required service, which means there must be someone at the delivery address to receive the goods.
What To Do If Your Shipping Destination Is Not Recognised At The Checkout
If you would like goods delivering outside of the UK and our website does not offer you a delivery option at the checkout, please use the contact form below to obtain a shipping cost. You will need to provide us with your full postal address and a list of the items you would like to purchase.
if you would prefer to talk to one of our team, please telephone us at +44-(0)-1436-670-806
If you are unavailable when our delivery partner tries to deliver your order, they will usually try to deliver again the next working day or they will drop a card in to offer you a collection from a local collection point. Instructions for packages sent by courier to be left on the premises or with a neighbour when you are not a home are left at your own risk and no liability rests with either Curious Minds or the Delivery Partner. If you should refuse delivery of goods, or are not available to accept the delivery on both delivery attempts, you will be required to cover any extra costs incurred.
Our Address
Curious Minds Science Ltd (Grasshopper Toys)
112 West Princes Street
Helensburgh
Argyll & Bute
G84 8XD
United Kingdom
Phone
+44(0)1436 670806