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Diffraction Grating - Rainbow Peepholes™

Diffraction Grating - Rainbow Peepholes™

01601

Rated 5.0 out of 5
Based on 16 reviews

$ 40.00 USD
$ 40.00 USD
($0.40 each)
Sale Sold out

Fun with Diffraction Gratings!! Preprinted Rainbow Peepholes™. Always in stock and ready to ship. The ideal teacher incentive. Great in the classroom when a quality diffraction grating is needed...

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Fun with Diffraction Gratings!! Preprinted Rainbow Peepholes™. Always in stock and ready to ship. The ideal teacher incentive. Great in the classroom when a quality diffraction grating is needed for the study of Light and Color. Just look through your Rainbow Peephole at any light source...the rainbow starbursts will amaze you!

Product Details

RAINBOW PEEPHOLES:
- 13,500 Line/Inch Diffraction Grating
- 1 11/16"" Diameter, 1/2"" Window
- Heavy Carboard.

IMPORTANT: Minimum order for this item is 100 pieces at .40 each. To receive the quantity discounts advertised, you must add the quantity you're ordering to the quantity box on the order page.

Shipping

Usually, orders ship out within 24-48 hours upon placement. You receive your order dependent on the shipping service you have requested and location from our warehouse.

Ships World Wide

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average rating 5.0 out of 5
Based on 16 reviews
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16 Reviews
Reviewed by Andrew H.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

AMAZING for EDM music festivals and raves!

Many years ago at an EDM concert, someone gave one of these to my wife and me. Since then, we have bought thousands of them and given them away ourselves. Everyone loves them. It goes the same way every time. We hand it to a stranger, they look at it and go, "Huh? Wha?" Then we show them - look at the lasers through the disc (we call them laser discs). The person looks through the laser disc at the lasers and the stage, and they go "WHOA!" and they thank us a million times, and then they show it to their partner or friend, and we give one to that person too. Same reaction. We love it!

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Reviewed by Victoria S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Science meets Art

Rainbow Symphony's diffraction grating rainbow peepholes are used in our science workshop exploring light. Compact and effective, students explore dispersion of light with their peepholes.

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Reviewed by Wesley H.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

love rainbow peepholes

They are wonderful. I have been using them for decades, usually buying around 500 or so per year. I give them to kids, people who have helped me, as part of tips at restaurants and stores, to school kids who visited our science department at the university where I used to teach (before retirement), as part of children's messages at my church, and as Christmas gifts to kids, especially relatives. I almost always have some with me wherever I go. The vast majority of people to whom I give them seem to really like them.

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Reviewed by John Q.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Perfect for Demonstrations

I'm getting ready for an "open house" where we are talking about x-ray diffraction from a synchrotron source. These peepholes make the perfect analog for a "sample" when paired with an inexpensive puck LED light where I can easily change the color via a remote. I masked out a single LED with a piece of cardboard to simulate the source. Looking through the peephole and changing the color demonstrates some key features such as the shrinking of the square pattern as color goes from red to blue (although green is best given the spectral purity of the lights I have). The 4 fold symmetry of the peephole is an analog to crystal symmetry and tilting the peephole to 45 degrees or so away from the face shows the reciprocal relationship between spacing and spacing in the diffraction pattern since our eye is seeing an angular projection of the diffraction grating in one dimension. The single LED is the "x-ray source," the peephole is "the sample", and the eye is "the detector". An excellent teaching demo. In the pictures, I just put peephole in front of my cell phone camera and its very easy to capture the effect. The pictures show the bare LED puck and then the red and green colors.

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Reviewed by Hannah L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great little giveaway

We are a science communication company and this was a perfect little giveaway at a recent conference.

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