Please select from
the list below or the links on the right.
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.
OPTICAL DISK, HARTL
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
optical elements are fixed on the metal disk by means of
clamping screws which are provided with the Hartl Optical Disk.
Distributors of scientific and educational products
Where to buy?
Most pictures are linked to
the pricing and online store for fast and convenient ordering
Our products are available at the following
online stores. For large orders please call in advance and verify the
availability, wholesale discounts and shipping options. If you cannot find any
product in the online store of your choice, please use the search option of the
store or call (973)777-3113 for further assistance.
All orders will be shipped from our
warehouses in United States (USA), Canada or United Kingdom. We ship worldwide
to most countries including U.S., Canada, Australia, United Kingdom, New
Zealand, Germany, France, Netherlands, and many other countries.
List of metals for science experiments