Breckland Scientific 2021 Catalogue

Optics

Colour

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1 LED ARRAY This LED Array is an upright light column, mounted on a base, with different colour (and wavelength) LEDs mounted vertically in a single column. Each LED can be switched on separately using the rotary switch mounted on the top of the column. The unit is powered by a low voltage, mains plug top power supply. Ideal for use as separate colour light sources for optics experiments using diffraction gratings, spectroscopes and spectrometers. Cat No. Description Price Per OCO-345-100 LED Array 44.90 ea. The quality apparatus comprises 3 bright LED light sources – 1 each of red, green and blue - whose intensity can be adjusted independently of each other. The light output from each LED is projected onto the screen provided, with the primary colour circles (red, green and blue) overlapping to show secondary colours (yellow, magenta and cyan), with white light in the centre. Each light source is mounted in an adjustable ‘ball and socket’ holder which enables the angle of each light to be adjusted, allowing the user to have more control over the projection and colour overlap areas. Supplied as a complete kit, including 3 led projector, stand, power unit, tripod base, white screen and storage case. 2 COLOUR MIXING APPARATUS - SUPERIOR This Colour Mixing apparatus provides a superb demonstration of additive colour synthesis of the primary colours: red, green and blue. 3 NEWTON’S COLOUR DISC - HAND DRIVEN For demonstrating that white light is composed of all the spectral colours through the additive mix- ing of the colours. Comprising a multicoloured circular disc having sectors of various spectral colour in proper proportions. On rotating the disc at suf- ficient speed, all the colours will be observed to disappear by merging into a single white colour. The disc has a friction pulley at the back touching the driving wheel with a handle. Complete assembly mounted on a stable base. Cat No. Description Price Per OCO-450-100 Newton’s Colour Disc - Hand Driven 23.64 ea. 4 NEWTON’S COLOUR DISC - MOTORISED For demonstrating that white light is composed of all the spectral colours through the additive mixing of the colours. Comprising a multi-coloured circular disc of about 80mm diameter, having sectors of various spectral colour in proper proportions, mounted on a low voltage DC motor. On rotating the disc, all the colours are observed to disappear by merging into a single white colour. Provided with colour-coded wires terminating in 4mm banana plugs, connected to the motor for power input. Cat No. Description Price Per OCO-500-100 Newton’s Colour Disc - Motorised 32.03 ea. 5 LASCELLS COLOURWHEEL This Newton’s colour wheel apparatus includes a motorised colour spinner and fixing rod for clamping in a retort clamp stand during use. The motor is connected to a 0 to 12V d.c. bench power supply, via 4mm leads. As the voltage is slowly increased, the wheel starts to rotate and the coloured Demonstrate: • Binary colour synthesis • Complementary colours • The trichromatic coordinates • Colour triangle • Colour reproduction Cat No. Description Price Per OCO-380-100 Colour Mixing Apparatus - Superior 168.70 ea.

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LED Array

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Colour Mixing Apparatus

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Newton’s Colour Disc - Hand Driven

Newton’s Colour Disc - Motorised

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segments merge to neutral showing the colour mixing effect. Requires 0 – 12V variable d.c. power supply (not included). Wheel diameter 20cm. Cat No. Description

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OCO-510-110 Colour Wheel

58.35 ea.

Lascells Colour Wheel

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335

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