Concave Lens

Lenses - Glass with ground edges - Double Concave

Made from Plate Glass, with carefully ground and polished optical survaces, and cleanly ground edges, these lenses feature a diameter of 38mm - 125mm and focal lengths from 50mm - 500mm.

Made from Plate Glass, with carefully ground and polished optical survaces, and cleanly ground edges, these lenses feature a diameter of 38mm - 125mm and focal lengths from 50mm - 500mm.

Made from clear acrylic. One plane surface is frosted.

Set of 2 lenses, 1 concave and 1 convex, 38mm diameter, 150mm focal length.

50mm diameter Set 6 - double convex, plano-convex, concavo-convex, double concave, plano-concave, and convexo-concave

The set contains 6 glass lenses: one each of double convex, plano-convex, concavo-convex, double concave, plano-concave, and convexo-concave. Includes a reusable cardboard storage box.

The set contains 6 acrylic lenses: one each of double convex, plano-convex, concavo-convex, double concave, plano-concave, and convexo-concave. Includes an activity guide and a reusable cardboard storage box.

The Neutralization Set consists of two lenses: one concave and one convex. When combined, the lenses create no magnification. The lenses are made from glass, have a focal length of ±115mm, and a diameter of 38mm. PRODUCT WARNINGS WARNING: This product can expose you to chemicals…

…board. Lenses are about 8" long, so your optics experiments would be clearly visible from every part of the classroom. Each piece in the set has a pre-attached magnetic backing. Set contains 1 each of semi-circular lens, equilateral prism (3"sides), double convex lens, double concave lens,…

…Clear glass circle (#OPTBN-GCR) 6 Lenses, 50mm (one concave lens with 5cm focal length, one concave lens with 10cm focal length, one concave lens with 15cm focal length, one concave lens with 20cm focal length, one convex lens with 5cm focal length, one convex lens with 10cm focal length) …

Boxed set of High Quality Acrylic Prisms, made from clear acrylic sheet, all sides polished. The set consists of sic prisms in a variety of shapes, and an activity guide. Includes: 1 Rectangular block, 1 Semi-circle, 1 Equilateral prism, 1 Double convex lens, and 2 Double concave lenses.

Includes two acrylic lenses, one each of double convex, and double concave, and three mirrors, one each of convex, concave and plane. Packed in a cushioned wood storage box.

…for color mixing work using colored filters that fit into slots in the ray box. The lenses and prisms are acrylic and are typically 3" long. They include a convex lens, a concave lens, a semicircular lens, a rectangular block, a right angle prism, an equilateral prism, a 30°/60°/90°…

…a reusable storage box. Includes 1 Doubel convex lens (38mm diameter, glass), 2 acrylic equilateral 25mm x 50mm prisms, 1 double concave 38mm glass lens, 1 plain 38mm glass lens, 2 square acrylic mirrors, 2 plastic mirror supports, 1 wooden lens holder, 1 graduated plastic beaker, 1 flashlight…

…for introductory lens work.  Features include: 74cm extruded aluminum bench with push-on plastic feet and large easy to read scale, three-position riders accommodate push-in stems of optical parts, pushing stem in locks rider in position, four 50mm diameter mounted lenses (3 convex, 1 concave),…

…feet. Accessories include: 1 Laser light source, 12V operated 1 Halogen light source, 12V operated 1 Power adapter, 12V, 1A 2 Lens attachments (one double-concave, one double-convex) 1 Graph sheet attachment 3 Slit accessories for the halogen light source (five parallel…