Colour Shadow Apparatus
Product Code : SCL-LAO-11150
Quick answer: The Colour Shadow Apparatus shows that shadows can be coloured. When an opaque object stands in front of a screen lit by coloured light sources, each shadow is still lit by the colours that are not blocked, so the shadows take on different hues. It demonstrates additive colour mixing in a memorable way. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Parameter | Detail |
|---|---|
| Learning principle | Coloured shadow formation, light blocking and additive colour effects |
| Supplied as | Colour Shadow Apparatus set |
Light sources, screen, supports and electrical requirements are not listed on this page; email [email protected] with the house code SCL-LAO-11150 for the configuration.
How the colour shadow experiment is done
In the classic arrangement, red, green and blue lights shine on a white screen from slightly different directions, and the screen looks white where all three overlap. An object placed in front casts three separate shadows. In the shadow of the red light only green and blue arrive, so that shadow looks cyan; the shadow of the green light looks magenta and the shadow of the blue light looks yellow. Where shadows overlap only one colour remains, and where all three overlap the shadow is black.
The experiment is a vivid check on additive colour mixing and makes a good follow-up to work with the Primary Colour Kit.
- Place the apparatus on a stable table in a darkened room.
- Arrange the light sources and viewing surface as supplied.
- Place an opaque object between the lights and the screen.
- Observe and record the colour of each shadow and of the overlapping regions.
- Move the object closer to and farther from the screen and watch the shadows separate or merge.
Key features
- Direct demonstration of coloured shadow formation.
- Shows how blocking selected coloured light changes the shadow colour.
- Provides a practical basis for discussing additive colour mixing.
- Suited to teacher-led demonstrations and guided student activities.
- Complements the Primary Colour Kit for broader teaching of coloured light.
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the colour shadow apparatus at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Light and Optics products
- Reflection of Light Apparatus (SCL-LAO-11149)
- Wooden Periscope (SCL-LAO-11147)
- Kaleidoscope (SCL-LAO-11142)
- Spectrometer (SCL-LAO-11139)
- Spectrometer Prism (SCL-LAO-11138)
- Optical Bench Single Rod (SCL-LAO-11136)
The full range is in the Light and Optics section of the Physics Lab range.
Frequently asked questions
Why are the shadows coloured in the colour shadow apparatus?
Each shadow blocks only one light source; the other coloured lights still reach that part of the screen and mix, giving the shadow their combined colour.
What topic does the colour shadow apparatus teach?
It teaches additive colour mixing and shadow formation, and shows why red, green and blue are the primary colours of light.
What is the price of the colour shadow apparatus?
Prices are not published on the website. Add the colour shadow apparatus to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-LAO-11150 and the quantity, to receive a quotation.
Does Lab Exports manufacture the colour shadow apparatus?
Yes. Lab Exports manufactures the colour shadow apparatus at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-LAO-11150.
Request a quote
Email [email protected] with the house code SCL-LAO-11150 and the quantity, or add the colour shadow apparatus to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
