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Please select from
the list below or the links on the right.
Other (Optics)
BLOCK, RECTANGULAR,
GLASS (PLATE)
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To verify the laws of
refraction.
Dimensions: (l x w x h), 114 x 63 x 18mm.
Polished on all sides.
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BLOCK, RECTANGULAR,
GLASS (PLATE)
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To verify the laws of
refraction.
Dimensions: (l x w x h), 114 x 63 x 18mm.
With frosted faces and clear edges.
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BLOCK, RECTANGULAR,
GLASS (PLATE)
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To verify the laws of
refraction.
Dimensions: (l x w x h), 70 x 70 x 6mm.
With opposite edges frosted and the other two polished.
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BLOCK, RECTANGULAR,
GLASS (PLATE)
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To verify the laws of
refraction.
Dimensions: (l x w x h), 70 x 70 x 10mm.
With opposite edges frosted and the other two polished.
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BLOCK, RECTANGULAR,
ACRYLIC
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Dimensions are:
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l x w x h
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Type
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Cat. No.
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100 x 75 x 20mm
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Polished on all sides.
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3349-02
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79 x 27 x 13mm.
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One face frosted.
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3349-04
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70 x 70 x 9mm.
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Opposite edges frosted and
the other two polished.
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3349-06
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DIFFRACTION GRATING
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Diffraction grating
pressed between clear glass plates. Ideal for class room
demonstration.
Size 60mm x 40mm. View area: 45mm x 30mm.
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Lines per mm/inch
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Cat. No.
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100/2400
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4309-01
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300/7500
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4309-02
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600/15000
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4309-03
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DIFFRACTION
GRATING, DEMONSTRATION SET
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Three diffraction
gratings of 100/300/600 lines per mm in one mount.
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OPTICAL DISK,
HARTL
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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.
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ACCESSORIES FOR
OPTICAL DISK, HARTL
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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
Note: The
optical elements are fixed on the metal disk by means of
clamping screws which are provided with the Hartl Optical Disk.
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NEWTONS RING APPARATUS
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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.
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SPECTROSCOPE, DIRECT
VISION
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For quantitative
examination of spectral composition of white light, radiant bodies
etc.
Comprises a metal draw-out tube of 20mm diameter, with an adjustable
slit at one end. The light passing through this slit falls on the
prism elements and break up into a spectrum. This can be viewed
through an eye piece at the other end of the tube. Fully drawn-out
length is 130mm. Supplied in a velvet lined case.
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STROBOSCOPE, HAND
DRIVEN, SIMPLE MODEL
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For optically slowing
or completely stopping any object in motion and for measuring the
frequency of periodic motion.
Consists of a black metal disk of 250mm diameter with 12 evenly spaced
radial slits extending to its edge, an axis hole for mounting a handle
and a finger hole. Handle and mounting screw are included.
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SPECTRUM DISCHARGE
TUBES
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To show spectral
lines of pure substances. Mercury and helium tubes can be used as
sources for experiments on the measurement of wave length of light.
The gas pressure used results in well-defined emission spectra.
These are glass tubes about 26cm long, central capillary portion about
9-10cm long with electrodes sealed at both ends and connected to lead
wires protected by metal caps. Provided with loops welded to caps for
electrical connection. Needs an induction coil 5cm spark, or a
suitable transformer. Except for neon and helium, these can not be
used as lamps. Length of capillary portion can be varied as required.
For intermittent use.
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Type
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Cat. No.
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Air
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3376-01
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Argon Gas
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3376-02
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Carbon dioxide
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3376-03
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Chlorine gas
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3376-04
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Helium gas
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3376-01
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Hydrogen Gas
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3376-02
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Iodine
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3376-03
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Krypton gas
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3376-04
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Mercury vapor
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3376-04
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Neon gas
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3376-01
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Nitrogen Gas
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3376-02
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Oxygen gas
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3376-03
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Water vapor
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3376-04
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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
warehouse in United States (USA). We ship worldwide
to most countries including U.S., Canada, Australia, United Kingdom, New
Zealand, Germany, France, Netherlands, and many other countries.
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