The LED Rainbow Projector
Pearl — July 18, 2008 — Life-Stages
References: perpetualkid & geeksugar
This motion activated projector can conjure up a rainbow on demand via an LED light. It is sure to delight all of us when we're not lucky enough to see a real one. Children and those young at heart will enjoy this product.
Today we regard rainbows as pretty and we know there are no pots of gold at the end. We also understand how they come to be - the tiny raindrops refract the sun's rays to give us colorful arcs in the sky. Yet rainbows were once a source of mystery and even fear.
A book called Theodoric's Rainbow by Stephen Kramer tells the story of a remarkable 13th century Dominican monk who showed how rainbows are created by using small glass prisms to simulate raindrops and thus scatter light. His work is the one of the earliest examples of how scientists use models to study the irreproducible.
Glory rainbows are an interesting phenomenon for they are formed when the light is scattered backwards. These can be seen from aircraft or on mountains and hills. The Brocken Spectre is a type of glory rainbow where a huge ghostly figure of the mountaineer appears backed by a halo of shimmering rainbow rings. The rainbow type was named after a mountain peak in Germany where a mountaineer fell to his death in fright when he encountered one, so the story goes. It was really his own shadow cast against a glory.
Here's another rainbow maker:
Today we regard rainbows as pretty and we know there are no pots of gold at the end. We also understand how they come to be - the tiny raindrops refract the sun's rays to give us colorful arcs in the sky. Yet rainbows were once a source of mystery and even fear.
A book called Theodoric's Rainbow by Stephen Kramer tells the story of a remarkable 13th century Dominican monk who showed how rainbows are created by using small glass prisms to simulate raindrops and thus scatter light. His work is the one of the earliest examples of how scientists use models to study the irreproducible.
Glory rainbows are an interesting phenomenon for they are formed when the light is scattered backwards. These can be seen from aircraft or on mountains and hills. The Brocken Spectre is a type of glory rainbow where a huge ghostly figure of the mountaineer appears backed by a halo of shimmering rainbow rings. The rainbow type was named after a mountain peak in Germany where a mountaineer fell to his death in fright when he encountered one, so the story goes. It was really his own shadow cast against a glory.
Here's another rainbow maker:
Trend Themes
1. Motion Activated Projectors - There is an opportunity to develop more motion activated projectors that can create different visual effects on demand.
2. LED Light Innovations - Exploring advancements in LED light technology can lead to new and unique ways to create visual effects like rainbows.
3. Simulation Models in Science - The use of simulation models, like small glass prisms to simulate raindrops, can continue to advance scientific understanding in various fields.
Industry Implications
1. Home Electronics - The home electronics industry can incorporate motion activated projectors to enhance and personalize home decor and entertainment experiences.
2. Lighting - The lighting industry has the opportunity to develop new LED products that create different visual effects, such as rainbows, for various applications and settings.
3. Education and Research - The education and research sectors can utilize simulation models to study and understand complex phenomena in a controlled and reproducible manner.
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