---
product_id: 9075402
title: "Rainbow Symphony Diffraction Grating Slides, Linear, 1000 Line/Millimeters, Made in USA, Package of 25"
brand: "rainbow symphony"
price: "€ 22.40"
currency: EUR
in_stock: true
reviews_count: 13
category: "Rainbow Symphony"
url: https://www.desertcart.ie/products/9075402-rainbow-symphony-diffraction-grating-slides-linear-1000-line-millimeters-made
store_origin: IE
region: Ireland
---

# 1000 lines/mm precision 2" x 2" slide size Made in USA quality Rainbow Symphony Diffraction Grating Slides, Linear, 1000 Line/Millimeters, Made in USA, Package of 25

**Brand:** rainbow symphony
**Price:** € 22.40
**Availability:** ✅ In Stock

## Summary

> 🌈 Illuminate your curiosity with precision and pride!

## Quick Answers

- **What is this?** Rainbow Symphony Diffraction Grating Slides, Linear, 1000 Line/Millimeters, Made in USA, Package of 25 by rainbow symphony
- **How much does it cost?** € 22.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/9075402-rainbow-symphony-diffraction-grating-slides-linear-1000-line-millimeters-made)

## 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

- • **Proudly Made in the USA:** Support domestic manufacturing with a trusted brand known for quality, reliability, and educational innovation.
- • **Spectral Brilliance Unleashed:** Experience the brightest, clearest light spectra with minimal visual noise—perfect for professional-grade optics exploration.
- • **Durable & High-Quality Materials:** Crafted with embossed holographic optical elements that ensure longevity and consistent performance over countless experiments.
- • **Classroom-Ready & Projector Compatible:** Seamlessly integrate into lectures or demos using overhead or 35mm projectors for immersive, hands-on learning experiences.
- • **Precision Engineering at 1000 Lines/mm:** Unlock detailed light diffraction with ultra-fine linear gratings designed for accurate wavelength analysis and scientific rigor.

## Overview

Rainbow Symphony's Diffraction Grating Slides feature 1000 lines per millimeter on durable 2" x 2" holographic films, delivering bright, clear spectral displays ideal for educational and professional optics use. Made in the USA, these slides are compatible with projectors and include measurement scales for precise wavelength analysis, making them a must-have for science classrooms and curious minds alike.

## Description

Diffraction Grating Slides-Linear 1000 Line/mm. Our Holographic Diffraction Gratings are highly efficient embossed Holographic Optical Elements (H.O.E.). Diffraction Gratings are used for the direct viewing and analysis of spectra from different gas tubes and other light sources. The quality of the spectrum produced from our gratings is the brightest possible with a minimum of distracting visual noise. Our gratings are the principal component in a spectroscope and are used for experiments pertaining to the study of light and color. Project a spectrum using an overhead projector or 35mm slide projector for spectrum demonstration purposes. Use in conjunction with colored film gels for additive and subtractive color demonstrations.

Review: Fun little things to give out to people. - These diffraction gratings are amazing little things. There are 1000 lines per millimeter, causing light to be separated into the various components, like a prism would do. They're great gifts for curious minds. I give them out to people at the checkstand often, just because. The irony is that if you buy a pack of 20, it only costs around ten bucks, where if you only buy a pack of ten, it costs 12 bucks. Very strange indeed.
Review: These Work Much Better Than The Refraction Glasses - I use these in a classroom to demonstrate diffraction. Prisms are nice but they are expensive and fragile. I have tried two different types of diffraction eye glasses. One set was terrible, one was OK, but these slides work really well! Highly Recommended! Good Quality!

## Features

- DIFFRACTION GRATING: Rainbow Symphony's Linear Diffraction Grating Slides (1000 line/millimeter) allow you to directly view and analyze spectra from multiple light sources, including gas tubes, making the study of light and color fun and educational.
- QUALITY MATERIALS: Our 2"X 2" diffraction grating sheet slides were designed with quality material to produce the brightest possible spectrum with a minimal distracting visual noise, while being long lasting. It features efficient embossed holographic elements.
- EDUCATION: Our diffraction grating sheet slides are perfect for classroom or homeschool physics education on visual displays of light diffraction. Each slide has a scale to help you measure wavelength in nanometers, making observations simple to record.
- PROJECTOR COMPATIBLE: These slides can be used to project a spectrum using overhead projectors or a 35mm slide projector for spectrum demonstration purposes. Use in conjunction with colored film gels for additive and subtractive color demonstrations.
- MADE IN THE USA: All of Rainbow Symphony's diffraction grating film slides are made in the US to ensure the quality. These rainbow maker slides are perfect for kids gifts, physics gifts, educational toys, classroom supplies or homeschool supplies.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00K6K3MCW |
| Best Sellers Rank | #48,335 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Science Classroom Optics Kits |
| Date First Available | May 7, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.634 ounces |
| Manufacturer | Rainbow Symphony |
| Product Dimensions | 2 x 2 x 0.13 inches |

## Images

![Rainbow Symphony Diffraction Grating Slides, Linear, 1000 Line/Millimeters, Made in USA, Package of 25 - Image 1](https://m.media-amazon.com/images/I/71YEaN0HL+L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Will it chop frozen grapes?**
A: I just tried. This is ineffective against frozen grapes.

**Q: What is the difference between the various options?**
A: Basically the line spacing. We offer 500 ln/mm, 1000 ln/mm and cross axis 13,500 line/ in. The 1000 ln/mm spreads the spectrum the most.

**Q: Your scale is backwards.  Red is the longer wavelength.**
A: I think they meant the scale to be applied to the rainbow colors of the plastic part itself (just as a side reference relating color and wavelength), since the positions of colors on the grating depends on angles etc., they aren't tied to a specific position on the grating anyway.

**Q: Could anybody provide me more technical information or a datasheet? For example, the manufacturing method or the grooves' angle. Thank you in advance**
A: Sorry, just the line spacing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fun little things to give out to people.
*by R***N on September 27, 2025*

These diffraction gratings are amazing little things. There are 1000 lines per millimeter, causing light to be separated into the various components, like a prism would do. They're great gifts for curious minds. I give them out to people at the checkstand often, just because. The irony is that if you buy a pack of 20, it only costs around ten bucks, where if you only buy a pack of ten, it costs 12 bucks. Very strange indeed.

### ⭐⭐⭐⭐⭐ These Work Much Better Than The Refraction Glasses
*by O***Y on February 7, 2026*

I use these in a classroom to demonstrate diffraction. Prisms are nice but they are expensive and fragile. I have tried two different types of diffraction eye glasses. One set was terrible, one was OK, but these slides work really well! Highly Recommended! Good Quality!

### ⭐⭐⭐⭐⭐ Excellent Product
*by K***E on August 28, 2024*

I got the 500 lines/mm and it works amazing. Using an extremely narrow slit, I was able to see Frauhofer lines in sunlight (never look directly at the sun) I calculated that there are actually about 521.7 lines/mm. Make sure to check the value against a source with a known wavelength if you want to do quantitative applications.

## Frequently Bought Together

- Rainbow Symphony Diffraction Grating Slides, Linear, 1000 Line/Millimeters, Made in USA, Package of 25
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*