Made of polished glass with ground edges. Bi-concave lens: Used for reducing the size or spreading out light, with two inward curving symmetrical faces.

Made of polished glass with ground edges. Bi-convex lens: Magnifying or condensing lenses, with two outward curving symmetrical faces.

An important accessory for college level spectrometry work. Made of optical extra-dense flint glass of dimensions: (face x height), 32 x 32mm. Refractive index 1.62. Individually packed.

Diffraction grating pressed between clear glass plates. Ideal for class room demonstration. Size 60mm x 40mm. View area: 45mm x 30mm.

For studying the laws of optics. Made of 15mm thick and 32mm wide with two parallel sides 90mm and 40mm long at angles of 45° and 60°. One large surface is frosted enabling to follow the path of light.

Equilateral glass prism for index of refraction experiments.

Equilateral acrylic prism for index of refraction experiments.

Dimensions are:

For measuring critical angle and observing total internal reflection. Made of clear optical glass. Angles 90°-45°-45°.
Cut and polished manually. Dimensions are approximate.

For measuring critical angle and observing total internal reflection. Made of clear optical glass. Angles 90°-60°-60°. Approximate dimensions are:

Prisms have several uses in optical systems. For example they can deviate a ray, disperse white light into the visible spectrum or erect an inverted image. Great for experiments in dispersion and refraction of light. Face dimension is 25mm. Made of Glass.
Compatible to 3329

Comprised of one each of biconcave and biconvex lens, 38mm in dia. and 15.5cm focal length, which when used together neutralise each other, the resulting effect being that of a plane glass.

Ideal 3X magnification for reading, inspection and examination of fabric, documents, artwork, paint and more. Folds into the leather jacket as a protective cover.

For showing the most important types of lenses. Optically true with ground glass edges. Includes one each of double convex, plano-convex, double concave, plano-concave, concavo-convex and convexo-concave lens arranged in a velvet lined case.

These high quality plastic mirrors are perfecr for even young student applications. Durable and just right for mirror writing, periscope, and other experiments.

These solar cells are used to power small motors and other devices which draw small amounts of current. Can be used individually or linked to each other for more voltage or more current.

Semi circular blocks are available in two different sizes and types.
Blocks of diameter 75mm and thickness 12mm are available in glass and Acrylic.
Blocks with diameter of 65 mm and thickness of 15mm are are only available in Acrylic.

To focus light along a straight line. Useful for looking at full paths of rays on paper, such as pencils of light emerging from the slits of a comb illuminated by a small lamp. Made of optically true glass with polished faces and ground edges.

Dual Lens magnifier. Contains a 50mm diameter, 3X lens and 17mm diameter, 6X lens.

For examining biological and geological specimens in the field and the laboratory. A polished optical lens is mounted in a plated metal rim which is threaded in a black plastic handle.

Suitable for biology laboratories because of its wider field and larger focal length. Comprised of a double convex glass lens of diameter approximately 100mm, focal length 250mm and magnification 2X, framed in a plated brass ring. Mounted in a swivel with flexible gooseneck, fitted on a cast iron base.

For field use. Comprised of two convex lenses, each of which is mounted individually in black plastic rings of diameter approximately 30mm. Magnification is 10X when both lenses are used and 5X when single lens is used. Both the lenses fold compactly in a black plastic frame. Overall length is about 65mm long when opened.

An optical glass prism mounted on a stand with adjustable height. The prism can be rotated on its own axis by 180° or locked at an angle. Prism dimensions:

For basic experiments in optics. Made of optically true glass, with protected silver coating.
View details for available sizes.

For demonstrating important principles of optics such as reflection by various shapes of mirrors, refraction through several types of lenses, total internal reflection and dispersion. The apparatus consists of a satin finished metallic disc about 30cm in diameter, graduated around the circumference in 360ß. A handle on the back can be used to rotate the disk through 360ß in a vertical plane about a horizontal axis perpendicular to the plane and passing through the center of the disk. The disk is partially shielded by a hood adjustable through 360ß degrees. On the hood is a circular plate with slits to allow ray or rays of light to pass and fall on the optical elements. The hood also has a slot for placing red, green and blue filters. The disk face is outlined for various optical elements so that light coming through these slits strikes them at correct angles. The disk is mounted on a heavy tripod base. A strong source of light for sending parallel rays through the slits and on to the shielding screen is required. Optics and filters are not included.

Spherical glass mirror, diameter 75mm, focal length 200mm. Metallized coating on one side so that one side acts as a concave mirror and the other as a convex mirror.

Set of 6 lenses with outer diameter of 38mm. This lens set includes samples of double convex, double concave, plano concave, plano convex and aoncave convex lenses.

For seeing the reflection and bending of light as it passes through lenses and prisms. Phenomenon of refraction and internal reflection is also easily visualised. The base surfaces are painted white for easy visibility of a ray of light. Thickness of the blocks is 10mm except for the last two items noted below. Set includes the following: Bi-convex lens 90mm long Bi-concave lens 90mm long Semicircular lens 93mm diameter Trapezoidal block 85 and 30mm opposite faces Right angle prism 100mm hypotenuse Right angle prism 32mm hypotenuse and 50mm long Equilateral prism 25mm face and 50mm long Supplied in a velvet lined case.

Includes the following glass lenses or prisms. Frosted faces. Thickness 10mm. Packed in a velvet lined case. Spherical bi-convex lens, length 85mm Spherical bi-concave lens, length 85mm Triangular right angle prism (90ß-45ß-45ß), hypotenuse 75mm Trapezoidal prism, base 85mm Semicircular lens, diameter 85mm Circular lens, diameter 85mm

Ray box provides parallel light rays required for experiments with lenses and mirrors.

Easy and quick Ultra Violet light for mineralogists and forensic experts. Portable UV light is also one of the most exciting devices for students who are doing an experiment with UV light. This portable light also comes with a white, super bright LED torch that makes it usable as a general-purpose light source. At home you can use it do reveal the hidden stains from pets (urine stain), oils and some bacteria.

This handy little pocket magnifier has a great magnification of 10X.  It is comprised of a pair of clear, plastic, convex lenses, mounted in a black plastic ring with a diameter of approximately 22mm.

Hollow prism is used to study, observe or compare the refraction of light in different liquids of different refractive indices.

This lens set is comprised of the most important types of lenses. Optically true with ground glass edges. Includes one of each: double convex, plano-convex, double concave, plano-concave, concavo-convex and convexo-concave, arranged in a velvet lined case. Diameter 50 mm

For field use. Comprised of a pair of convex lenses, magnification 10X, mounted in a black plastic ring of diameter approximately 22mm. Folds completely in a metal frame. Overall length is about 56mm when fully opened.

For verifying the laws of reflection and other experiments in optics.

For studying interference fringes due to sunlight or monochromatic light. Consist of a plano-convex lens, diameter 60mm, and an optically polished (worked) flat glass plate mounted on a ring metal pressure frame with three compression adjusting screws for proper centering of concentric circular Newton rings.

Use a radiometer to show that light energy can be converted to mechanical energy.

Made of high quality glass, to verify the laws of refraction.
Dimensions: (l x w x h), 114 x 63 x 18mm.
With frosted faces and clear edges. The glass optically clear, with no color tint.

For determining time of the day observing sun's shadow by placing on a windowsill. Made of cast alloy disc, approximately 110mm diameter with arabic numerals and a gnomon. Instruction booklet is included.

This hand held Magnifier Glass can be used for examining biological and geological specimens in the field and laboratory.

This is a pen shape magnifier/ microscope with a magnification range of 16X up to 32X.

One piece, durable plastic construction, with open bottom for viewing insects and small objects.  Clear acrylic sides allow the light to pass through.  Offers a high magnification of up to 8X with optical quality acrylic lenses.

The Right Angle Prism unleashes a rainbow of colors from pure white light.  It is precision crafted of clear acrylic and it is available on a blister card.  The length is 1.75 inches.

For basic experiments in optics. Made of optically true glass, with protected silver coating.