Colour Shadow Apparatus
Product Code : SCL-PLE-11643
Quick Answer: The Colour Shadow Apparatus shines red, green and blue LED lights, each with its own intensity control, past a vertical rod onto a white matte screen, giving coloured shadows and showing how the three primaries add to make secondary colours and white.
Last updated: 18 October 2026
Key Features
- Three high-intensity LED modules: red, green and blue.
- Separate variable intensity control for each colour.
- Neutral white matte projection screen.
- Vertical rod for casting multi-coloured shadows.
- Regulated DC input with internal surge protection.
Technical Specifications
| Specification | Value |
|---|---|
| Light sources | Three LED modules: red, green, blue |
| Controls | Variable intensity for each colour |
| Screen | White matte |
| Shadow rod | Vertical rod |
| Power | Regulated DC input, internal surge protection |
How It Is Used
With all three lights on, the screen is white where they overlap, while the rod casts shadows in which one or two colours are missing, giving cyan, magenta, yellow and the single primaries. Dimming or brightening each light lets students explore additive colour mixing and trichromatic colour vision.
Frequently Asked Questions
Why are the shadows coloured in the Colour Shadow Apparatus?
Each shadow of the rod blocks one or two of the red, green and blue lights, so that patch of screen is lit only by the remaining colours, which mix additively to give the shadow its colour.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related colour mixing apparatus:
- Primary Color Kit
- Primary Colour Kit
- Primary Color Apparatus
- Raybox Colour Filters plastic mounted (Set 6)
- Newton’s Colour Disc
For a quotation on the Colour Shadow Apparatus, contact JLab India on +91-8569909696.
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