Ray Optics & Refraction/Optical Bench
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LIGHT BOX AND OPTICAL SET |
| Code:GP - 501.2 |
A set of optical apparatus for all types of optical experiment involving reflection, refraction and colour mixing. The principal component is a robust light box finished in Matt black with a 12V 36W S.B.C. axial filament lamp with 0.75m of twin flex. One end of the box has a cylindrical convex lens in an adjustable sliding mount which allows a parallel, convergent or divergent beam to be produced. The other end of the box has a triple aperture system for colour mixing experiments, the lateral apertures being provided with adjustable hinged mirrors. All apertures in the box are provided with vertical channels to hold slit plates and/or colour filters.
Optical Accessories included :
- Perspex Blocks(Prism): 1 rectangular, 1 semi-circular, 1 triangular prism 60° x 60° x 60° , 1triangular prism 90° x 60° x 30°, 1 triangular prism 90° x 45° x 45°.
- Cylindrical Perspex lenses: 1 double concave, 1 double convex(both with the same radius curvature) 1 thick double convex.
- Mirror : 1 plane glass(mounted on stand).
- Black Plastic Slit Plates : 1 with three narrow slits & one narrow slit, 1 with four narrow slits and one wide slit.
- Set of Eight Colour Filters: Primary red, primary green, primary blue, cyan, violet, yellow, orange, magenta.
- Set of Eight Coloured Cards: Red, green, blue, violet, orange, cyan, yellow, pink.
The set is supplied complete with a spare lamp.
Dimensions of light box 170 x 90 x 55mm.
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RAY TRACK APPARATUS |
| Code:GP - 502.1 |
A compact visual teaching aid which is robust in construction wood board 400x280x13mm with matt white surface, mounted on rubber feet carries a circular scale with four quadrants 0-90° graduated every 2°, with two lines at right angles. The ray box provided with slots to accommodate metal slits, colour filters, lenses etc., and is fitted with a 12V 24W line filament.
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EYE MODEL, FUNCTIONAL |
| Code: GP - 509.1 |
This unique model permits demonstration of the physical principles upon which the eye operates, including defects of vision and their correction.
The lens and ciliary body are flexible, the lens itself being fluid filled and connected to a syringe. The syringe can be used to vary the pressure in the lens and hence its thickness, to simulate accommodation. The length of the ‘eyeball’ may be varied to simulate long or short sight and lenses to be used to demonstrate correction via spectacles.
A major advantage of this model is that actual images may be projected on to the ‘retina’, making it an extremely effective demonstration tool.
The complete model is mounted on a wooden base.
Overall Dimensions of 320 x 180mm length x height.
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OPTICAL BENCH, 1.5 METER |
| Code: GP - 510.2 |
Comprising a wooden base board.
6mx140mm with a 1.5m scale divided in millimeters plus six sliding mounted metallic bases 100x50mm each with engraved line, brass pillars with screw for locking.
240V white lamp with lamphouse.
Metal object white screen 75mm dia with gauge.
Metal object white receiving screen 100x75mm.
Needle mounted in rod 6mm.
Plane mirror 100x75mm.
All the accessories mounted on a 6mm brass rod which fits in the stand giving an optical height approx.
125mm above the base board.
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NEWTON’S RING APPARATUS |
| Code: GP - 536.1 |
Consists of a Plano convex lens, 63mm dia and 2000mm focal length, on a flat glass plate of equal dia. Both enclosed in a metal ring frame with compression adjusting screws eqispaced to ensure correct contact between the two elements.
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HAND SPECTROSCOPE |
| Code: GP - 545.1 |
Direct Vision Spectroscope with a fixed slit. This is useful in a qualitative work, with both emission and absorption spectra where a wavelength scale is not required with adjustable slit.
A case is provided.
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