Amazon.com: BIJIA 3.2 inch Acrylic Paperweight Magnifier Reading Magnifying Glass - Dome Magnifier/Paperweight Optical Half Ball Lens with White Box(80mm) : Everything Else
Ball lenses, explained by RP; focal length, aberrations, applications
Mic-UK: Measuring the Magnification of Homemade Simple Microscope Lenses
Amazon.com: OwnMy 4" Crystal Glass Magnifier, Glide Paperweight Magnifying Glass Dome, Crystal Half Ball Sphere Lens for Photography/Decoration, Reading Aid : Health & Household
Working with Ball Lenses
Water Sphere Lens: Refraction & Light Science Activity | Exploratorium Teacher Institute Project
Research on the method of designing cap lens using ant colony algorithm | Scientific Reports
The construction of high-magnification homemade lenses for a simple microscope: an easy “DIY” tool for biological and interd
Experiment: The Leeuwenhoek Microscope and the Beginning of Our View into the Small
Glass ball lens supplier for optical applications.
Ball Lens Calculator | Edmund Optics
L-eye | Explore
1.0mm Diameter, N-BK7 Ball Lens | Edmund Optics
Amazon.com : 6X Reading Magnifier, 3 Inch Acrylic Paperweight Reading Dome Magnifying Glass with Pouch for Glass Optical Half Ball Lens : Health & Household
A Ball Lens For Optical Fiber Coupling On The Cheap | Hackaday