100mm Convex Glass Lens – DIY Projector & Magnifying Lens

100mm Large Diameter Convex Glass Lens for DIY Projectors & Optical Projects

Unlock your creativity with this precision-ground 100mm diameter convex glass lens. Whether you're building a DIY projector, experimenting with desktop lighting setups, or exploring optical science, this thickened borosilicate glass lens delivers sharp, clear focus and impressive light-gathering capability. Its meniscus shape and large 100mm aperture make it ideal for hobbyists, students, makers, and optical enthusiasts alike.

Key Features

• Large 100mm (10cm) Diameter — Wide aperture for maximum light transmission and broad focal coverage
• 15cm Focal Length — Ideal for DIY projector builds, solar experiments, and desktop magnification setups
• Premium Optical Glass — Thickened construction for durability and clear, distortion-free imaging
• Meniscus / Convex Design — Optimized for focusing light and magnifying objects with minimal aberration
• CE Certified — Meets European safety and quality standards
• Versatile Use — Perfect for DIY projectors, desktop lighting rigs, magnification, solar experiments, and optical art projects

Specifications

What Can You Build With It?

This large-format convex lens is a favourite among DIY makers. Use it as the primary focusing element in a homemade smartphone or image projector, pair it with an LED light source for a powerful desktop spotlight, or incorporate it into science fair demonstrations on refraction and focal points. The possibilities are as wide as your imagination.

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Frequently Asked Questions

Q: What is the focal length of this 100mm convex glass lens?

A: This convex glass lens has a focal length of approximately 15cm (150mm). This makes it well-suited for DIY projector builds and desktop optical experiments where a moderate focal distance is needed to produce sharp, focused images.

Q: Can I use this lens to build a DIY projector?

A: Yes! The 100mm diameter and 15cm focal length make this lens a popular choice for homemade projector projects. Simply align your image source (such as a smartphone screen or printed transparency) at the correct focal distance behind the lens, and it will project a focused image onto a wall or screen.

Q: Is this lens suitable for outdoor solar experiments?

A: The large 100mm aperture gathers significant light, making it useful for solar focusing demonstrations. Always exercise caution and follow appropriate safety guidelines when directing focused sunlight — never look directly through the lens at the sun and keep flammable materials away from the focal point.