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Optics
Newton’s Color Disc
To demonstrate the discovery made by Newton that white light is composed of seven colors. Consisting of a pulley mounted on a metal stand, the seven colored disc is driven by gears connected to a hand driven wheel. When the colored disc rotates, the eye can’t distinguish between individual colors and perceive it as white color.
PH30698 -
Optics
Light Kit
Simple kit that helps explain students the principle of reflection and refraction. Using mirrors, lenses, acrylic prism set and a ray box, light can be reflected and refracted in different ways. The acrylic prism set includes a triangular, half-round, double convex and rectangular prism and two double concave prisms all packed in a wooden storage box. A Newton color disc is also provided with this set. The color disc illustrates an important property of light that white light is composed of seven colors. With instructions.
PH30703 -
Optics
Color Mixing Apparatus
The color mixing apparatus consists of three super bright LED’s Red, Green and Blue to demonstrate the creation of secondary color with a combination of three primary colors. Intensity of these three LED’s are controlled with a microcontroller-based controller. Intensity can be varied from 0-100%. LED’s data can be stored to memory and later restored. The kit consists of two screens (one white Perspex screen and a black aperture screen) and a power supply.
PH30710 -
Optics
Spectroscope
Handheld simplest form of spectroscope. It can be used to get a general idea of the correlation between wavelength and observed color. A diffraction grating is used which spreads the incident light into its component wavelengths. An illuminated reference scale against which the spectrum may be viewed is also provided.
PH30727 -
Optics
Spectrometer, Standard
Reads to 6 minutes of arc (0.1°) 170 mm diameter metal scale graduated 360° x 1°, independently rotatable, with locking screw, vernier attached to the telescope reads to 0.1° (6 minutes of arc). Collimator is mounted on a fixed pillar, with an achromatic objective of 150 mm focal length and 21 mm aperture, and has an adjustable slit 6 mm long. The telescope is on a movable pillar, with a fine adjustment screw, an achromatic objective of 170 mm focal length, 21 mm aperture, Ramsden eye-piece and glass crosswire graticule. Both collimator and telescope have spiral focusing system and have axis adjusting arrangement. The table has 3 leveling screws, with lines marked to assist prism placement. With prism and grating holders, one small screwdriver and one Tommy bar for axis adjustment. Without prism.
PH30738 -
Optics
Spectrometer, Intermediate
Reads to 1 minute of arc. 150mm dia. Scale with protective cover and acrylic windows to read verniers is fixed to the telescope movement. The table is attached to double-ended verniers reading to 1 minute of arc with magnifier provided for the purpose. Both telescope and table rotations have fine adjustments. Collimator is on fixed pillar with 175mm focal length achromatic objective of 25 mm aperture and an adjustable slit. The telescope is on a movable pillar with 175mm achromatic objective x 8 Ramsden eye-piece and glass cross-line graticule. Both telescope and collimator have rack and pinion focussing and their optical axes can also be adjusted. Prism table has lines to assist prism placement hand has three leveling screws. With prism clamp, diffraction grating holder and one Tommy bar for axis adjustment, in case.
PH30745 -
Optics
Spectrometer, Advanced
Vernier reading to 30 seconds of arc. The 175 mm dia. scale is fixed. The table and telescope movements are completely independent of each other and read to 30 seconds of arc by means of double-ended verniers and magnifiers. Both rotations have fine adjustment screws. Coarse adjustments can also be made by release of clamping screw. Collimator is mounted on a fixed pillar and is fitted with 175 mm focal length. Achromatic objective with 32 mm clear aperture and a laterally adjustable slit 6 mm long. Telescope is mounted on a movable pillar fitted with 175 mm fl. achromatic objective of 32 mm clear aperture and x 10 Ramsden eye-piece with a glass cross line graticule. Both the telescope and collimator have rack and pinion focusing and can be adjusted for leveling the axes of both units as well as for adjusting to the axis of rotation. Prism table is marked with lines to assist prism placement and has three table leveling screws. It also has an interchangeable clamping unit for the prism and diffraction grating.
Complete with prism clamp, diffraction grating holder and a Tommy bar for adjusting optical axis. In case.PH30750 -
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Optics
Vernier Microscope
For measurement on two axes, with horizontal and vertical scales, heavy stand with leveling screws, and a carriage fitted with micrometer screw for fine adjustment. Another sliding carrier is provided on vertical bar also with micrometer screw for fine adjustment. Microscope tube is fitted with rack and pinion focusing. Stainless steel scales and verniers, horizontal scale 160 mm with vernier reading to 0.01 mm and vertical scale 140 mm with vernier reading to 0.01 mm. Ramsden eye-piece x 10 with crossline graticule and 50mm focus objectives. Magnifier is provided to read vernier.
PH30780
+1 (630) 345-3450