--- product_id: 125761673 title: "Diffraction Grating Slides, Linear, 500 Line/Millimeters, Made in USA, Package of 50" brand: "rainbow symphony" price: "€ 57.42" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.gr/products/125761673-diffraction-grating-slides-linear-500-line-millimeters-made-in-usa store_origin: GR region: Greece --- # 500 lines/mm Holographic elements 50 slides Diffraction Grating Slides, Linear, 500 Line/Millimeters, Made in USA, Package of 50 **Brand:** rainbow symphony **Price:** € 57.42 **Availability:** ✅ In Stock ## Summary > 🌟 Unleash the Spectrum of Possibilities! ## Quick Answers - **What is this?** Diffraction Grating Slides, Linear, 500 Line/Millimeters, Made in USA, Package of 50 by rainbow symphony - **How much does it cost?** € 57.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/125761673-diffraction-grating-slides-linear-500-line-millimeters-made-in-usa) ## Best For - rainbow symphony enthusiasts ## Why This Product - Trusted rainbow symphony brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Value:** 50 slides to fuel endless experiments and discoveries. - • **Visual Clarity:** Minimized visual noise for the brightest spectrum output. - • **Versatile Usage:** Compatible with overhead and 35mm slide projectors. - • **Precision Engineering:** 500 lines per millimeter for crystal-clear spectra. - • **Illuminate Your Learning:** Transform light and color studies into an unforgettable experience! ## Overview The Rainbow Symphony Diffraction Gratings Slides package includes 50 high-quality slides featuring 500 lines per millimeter, designed for direct viewing and analysis of light spectra. With highly efficient embossed holographic optical elements, these slides ensure the brightest spectrum output with minimal visual noise, making them perfect for educational and experimental use. ## Description Rainbow Symphony Diffraction Gratings Slides - Linear 500 Line/Millimeters, Package of 50 ## Features - Makes the study of light and color fun and unforgettable - Features highly efficient embossed Holographic Optical Elements - Used for the direct viewing and analysis of spectra from different gas tubes and other light sources - Spectrum produced from our gratings is the brightest possible with a minimum of distracting visual noise - Great for overhead projector or 35mm slide projectors ## Images ![Diffraction Grating Slides, Linear, 500 Line/Millimeters, Made in USA, Package of 50 - Image 1](https://m.media-amazon.com/images/I/51PewL5YFAL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Works well if you keep it close to your eye and only handle it by the frame. *by T***L on Reviewed in the United States on March 17, 2017* There's a potential for confusion regarding how this product works. This is a "single axis" diffraction grating which means you'll see the point source of light ... and you'll see the rainbow "smear" of the color spectrum produced by that light which will appear both left and right of the point source. Hence the name "linear" diffraction grating because it's all in a nice line. However, you WILL need to hold this VERY close to your eye (perhaps an inch or so away) and will still likely need to look out to one side to see the spectrum. That's just the physics of how the prisms are working - not a product defect.One other caution... avoid touching the film with your fingers (or anything else that might leave any oily residue behind). The gratings are basically a 1000 tiny prisms in every inch. If you touch the film, your fingerprint oils will fill in the gaps between each micro-prism and that will prevent the light from being diffracted correctly.I use these to do explain spectroscopy when doing science outreach. In my case I start with an ordinary tungsten filament light bulb, but then switch to using gas tubes with various gas elements (hydrogen, helium, etc.) ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Great price, perfect for students *by A***E on Reviewed in the United States on January 6, 2021* We built take-home STEM kits for our students, and these grating slides were a perfect addition to our program's astronomy class. They are well-constructed and will "hopefully" hold up well to student use (they are students, so no guarantees!). The price was great, too! ### ⭐⭐⭐⭐ 4.0 out of 5 stars Works but very light image *by G***E on Reviewed in the United States on November 4, 2023* Colors are hard to see. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/125761673-diffraction-grating-slides-linear-500-line-millimeters-made-in-usa](https://www.desertcart.gr/products/125761673-diffraction-grating-slides-linear-500-line-millimeters-made-in-usa) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-04-24*