Author: Boris F - Germany - July 2008 I just now received my order - some very nice diffraction gratings - excellent!
the package was delivered to my door at 18:30 local time fyi
the tracking option was very helpful
My next order will be soon!
best regards
Boris
Author: Robin E - USA - June 2009 We are happy to say that we are completely satisfied, and delighted with the Holographic Diffraction Gratings that we Purchased from you. You Deserve a Lot of Credit for the Astonishingly Bright Diffraction Efficiency you have been able to Achieve with them.
Author: John P - USA - June 2009 I am thrilled with all of my purchases at Dragonlasers.
I have the Viper green laser, goggles and diffraction gratings.
The goggles work great! When I am showing off the strength of my laser by sending it through the diffraction grates and shooting out hundreds of beams of light, it is too easy to accidently reflect some in my own eye, so it is critical to have the goggles. The only pitfall is that they work so well at sheilding the laser beam, it is hard for me to see the effect of the diffraction. Luckily, the people I am showing it too are oohing and ahhing so i know i am hitting the grate properly. The googles are also critical when shooting a beam at like a match head. Even though a match head is not too reflective, the beam is so strong you need to wear googles while shooting the tip.
Also, thank you Frank for directing me to those articles about eye exposure to lasers. I always emphasis eye safety when showing off my lasers to kids. The articles were very informative.
Author: Henning Magnus H - Netherlands - July 2009 "These gratings are impressive. The set include two fan-style spread and two matrix-style spread optical glasses. They offer low attenuation of the light source and are quite durable. Mine arrived in less than 5 days. Recommended!"
Author: Petr S from Switzerland – July 2009 The diffraction gratings are very good quality, they diffract a single laser beam into a hundred weaker but still very visible and beautiful beams. You can decorate an entire building in a matter of a second. It looks great and is very fun to use. They adds extra fun to the use of a laser pointer.
Author: Michael P from USA – July 2009 Was pleasantly surprised at the quality of the gratings, having ordered for hobby use. Very satisfied with my purchase.
The line and dot matrix gratings matched the website description exactly and the price was very reasonable compared
to other holographic grating suppliers. The gratings can be easily cut with a diamond saw into smaller segments if desired,
and worked well with red, green and blue LED laser sources.
Author: Jean L from Belgium – July 2009 I am very satisfied with the purchase of the Dragonlaser diffraction lens. I ordered it online and received it within en few days. The lens itself matched completely my expectations. A high quality grating at a very affordable and correct price!
Author: Scott G - USA - Sep 2009 Dragon laser diffraction gratings are of great quality and don't melt when using my 300+ mW lasers. Also they a big enough that I can fit 3 diodes under the transition matrix and automatically switch between red, blue or green lasers using a single grating. As with Dragon Lasers' other products I have tried. I have found them to be of professional quality.
Author: Greg K - USA - Jan 2010 Dragon lasers is easy, fast and convenient. The beat everyone online as far I know for price. They fit my needs and I will buy from them again.
