Optical Lens 40 mm Biconvex Converging Lens Magnification 8x Focal Length 60 mm Optical Glass For DIY Experiments Magnifier and Physics Teaching
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This converging lens with a diameter of 40 mm is made from clear optical glass and has a biconvex shape. Both sides are curved outward, allowing the lens to focus incoming light and enlarge the observed image. The lens is supplied separately without a frame and handle, enabling you to use it exactly as you wish. It is ideal for home experiments, physics lessons, DIY projects, and for anyone interested in how optics works. The 40 mm diameter offers a slightly larger area for observation, making the lens well-suited for constructing your own handheld magnifier, simple projector, or educational tool for teaching about the refraction of light.
According to the seller's specifications, the lens has a focal length of 60 mm and a magnification of 8x. In the centre, it measures 7 mm and at the edge 2 mm, which corresponds to the typical profile of a converging lens that is thicker in the centre and tapers towards the edge. During experiments, the lens can easily demonstrate how a converging lens focuses rays to a single point and how an enlarged virtual image of an object is created. The smooth clear surface allows light to pass through and provides a clear view of the enlarged object. The lens can be inserted into your own holder, tube, or paper model to create a simple magnifier, telescope model, or other optical device.
- Type – biconvex (converging) lens
- Material – optical glass
- Diameter – 40 mm
- Magnification – 8x
- Focal Length – 60 mm
- Thickness at Centre – 7 mm
- Thickness at Edge – 2 mm
- Design – clear lens without frame and handle
- Use – optical experiments, physics teaching, building magnifiers, and DIY projects
- Contents – 1 optical lens with a diameter of 40 mm
When handling, hold the lens by the edge to avoid leaving fingerprints on its surfaces. Use a soft microfiber cloth or a cloth designed for glasses or optics for cleaning. Coarse and abrasive materials may scratch the surface and impair transparency. Store the lens in a case or soft pouch, ensuring it does not come into contact with hard objects. The glass is fragile, so protect the lens from falling onto hard surfaces. Also, be cautious of direct sunlight, as the converging lens focuses sunlight into a single point, creating high temperatures. Therefore, do not leave the lens on a sunny windowsill or near flammable materials, and supervise safe handling during experiments with children.
The optical lens with a diameter of 40 mm is a practical tool for anyone wanting to understand the basics of optics in practice. With a magnification of 8x, it is suitable for viewing small objects, text, or details of nature. The optical glass lens is ideal for home laboratories, school cabinets, and DIY workshops. It can easily be incorporated into your own constructions and models, as it is supplied without a frame. It will be appreciated by students, teachers, model makers, and DIY enthusiasts looking for a simple and clear biconvex lens for their projects.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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Returns30 days to return without giving a reason
Withdrawal period30 days from receipt of the goods
Deadline to send the goods backWithin 14 days of withdrawing from the contract
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Product conditionYou may unpack the goods and try them as you would in a shop, and you can return them even without the original packaging
Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
SpainReturns centre in Spain operated by Qxbox, an e-commerce logistics provider and logistics partner of the sellers on our platform.
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About the seller
This product is sold and shipped by an external seller. LUNZO guarantees you a safe purchase: online payments go through a secure payment gateway, and you handle your order, returns and complaints with us.
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Seller:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
Manufacturer:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
EU responsible person:
BioDomi GmbH
Address: Schokoladenring 13, 65795 Hattersheim am Main, Germany
E-mail: arcontact@biodomieurope.de
Telephone: +49 178 5749814
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