--- product_id: 9075375 title: "Diffraction Grating Slide-Linear 1000 Lines/mm 2x2\"-Pack of 10" brand: "rainbow symphony" price: "£21.96" currency: GBP in_stock: true reviews_count: 13 category: "Rainbow Symphony" url: https://www.desertcart.co.uk/products/9075375-diffraction-grating-slide-linear-1000-lines-mm-2x2-pack-10 store_origin: GB region: Great Britain --- # Diffraction Grating Slide-Linear 1000 Lines/mm 2x2"-Pack of 10 **Brand:** rainbow symphony **Price:** £21.96 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Diffraction Grating Slide-Linear 1000 Lines/mm 2x2"-Pack of 10 by rainbow symphony - **How much does it cost?** £21.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/9075375-diffraction-grating-slide-linear-1000-lines-mm-2x2-pack-10) ## 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 ## Description 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 Review: Great for showing various light phenomena (having to do with diffraction and interference) and demonstrating wave-like behavior. - I teach science and this is a great way to introduce diffraction and the double-slit and multi-slit experiments. If you also get flashlights that can project both laser and white light, you can show the multi-slit effect with the laser as well as a beautiful rainbow that will attract the attention of younger learners. If you get different color lasers, you can demonstrate that the diffraction angle depends on wavelength, which will in turn explain the rainbow. Provides great teaching material. Review: Great for Teaching the Color Spectrum - I use these when I teach students about light and the color spectrum. They work by holding them up to your eye and peering at a light source. The color spectrum appears as two vertical lines, one extending to the left and one extending to the right. The larger the light source the thicker the lines are. I like to have students look at different colored light bulbs and see what colors are present compared to white light. They are made of thick cardboard, so they should last a while. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0074R74D8 | | Age Range Description | Kid | | Best Sellers Rank | #51,820 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14 in Science Classroom Optics Kits | | Brand Name | Rainbow Symphony | | Customer Reviews | 4.5 4.5 out of 5 stars (148) | | Educational Objective | Color Recognition | | Indoor Outdoor Usage | Indoor | | Is Assembly Required | No | | Item Weight | 0.02 Pounds | | Manufacturer | Arbor Scientific | | Manufacturer Part Number | DG1000 | | Material Type | Plastic | | Model Number | DG1000 | | Power Source | light source | | Size | Small | | Supported Battery Types | No batteries required | | Unit Count | 10.0 Count | ## Images ![Diffraction Grating Slide-Linear 1000 Lines/mm 2x2"-Pack of 10 - Image 1](https://m.media-amazon.com/images/I/61Q4LGxyfuL.jpg) ## Questions & Answers **Q: What is the grating length, height and blaze angle?** A: The cut out window measures 1 x 1 - 3/8 inch (25x35 mm). Best viewing angle seems to be around 30 deg, if that corresponds to blaze. **Q: With a good mirror at the back, can it function as reflective grating?** A: No it will not. It would work as if the light went through the grating twice. **Q: Does this work like a spectrometer? I need to be able to detect if specific wavelengths are present in a room's lighting.** A: If you project the dispersed light onto a screen, you might be able to roughly see what wavelengths exist and their relative intensities. For finer measurement, you might need an array of photodetectors or a camera. Or you can look at the incident light directly from different angles and have a way to measure those anles, kind of like those antique spectroscopes, though you should be careful not to stare at overly intense light or UV sources. **Q: is the diffraction grating on flexible film or rigid plastic, or glass? Is it etched or produced photographically?** A: It's cardboard on the outside and plastic where it counts in the middle. I assume it can't be etched on plastic, but I'm not certain. In any case the price reflects that there is no glass in this product. I would also suggest plastic is safer than glass for kids, although given the small size the chance of someone getting hurt on a glass version of this product would seem unlikely. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for showing various light phenomena (having to do with diffraction and interference) and demonstrating wave-like behavior. *by U***. on January 11, 2018* I teach science and this is a great way to introduce diffraction and the double-slit and multi-slit experiments. If you also get flashlights that can project both laser and white light, you can show the multi-slit effect with the laser as well as a beautiful rainbow that will attract the attention of younger learners. If you get different color lasers, you can demonstrate that the diffraction angle depends on wavelength, which will in turn explain the rainbow. Provides great teaching material. ### ⭐⭐⭐⭐⭐ Great for Teaching the Color Spectrum *by M***D on August 8, 2014* I use these when I teach students about light and the color spectrum. They work by holding them up to your eye and peering at a light source. The color spectrum appears as two vertical lines, one extending to the left and one extending to the right. The larger the light source the thicker the lines are. I like to have students look at different colored light bulbs and see what colors are present compared to white light. They are made of thick cardboard, so they should last a while. ### ⭐⭐⭐⭐⭐ Inverse of prism *by R***D on September 27, 2019* Not what I expected, but fun, useful, and fair quality. Prisms refract the light into a room environment, these diffract that light coming in, so that they need to be near (your eye or a camera lens) to see the diffraction effect. Recommend using for camera filter effect vs. not held to your eyes, because the spectral output is different pure frequencies that could damage your eyes (probably not, by why chance it?). Fun and great quality for a slide style, but there is some dust as another reviewer mentioned. Dust is Not hard to removed with a camera lens brush. ## Frequently Bought Together - Diffraction Grating Slide-Linear 1000 Lines/mm 2x2"-Pack of 10 - Rainbow Symphony Diffraction Grating Slides, Linear, 500 Line/Millimeters, Made in USA, Package of 10 - EISCO Premium Quantitative Spectroscope - 400-700nm Range, 5nm Accuracy - for Studying Light Sources, Measuring Wavelengths & Color Spectra --- ## 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.co.uk/products/9075375-diffraction-grating-slide-linear-1000-lines-mm-2x2-pack-10](https://www.desertcart.co.uk/products/9075375-diffraction-grating-slide-linear-1000-lines-mm-2x2-pack-10) --- *Product available on Desertcart Great Britain* *Store origin: GB* *Last updated: 2026-05-01*