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Nathan P.
2025-08-30 14:35:18
I bought this after a science class project where we learned about stars and how we can tell what gasses are in the stars using diffraction to separate the light spectrum into its separate components. I don't know if this material can actually do that same thing, but either way it was a fun buy and I made lots of fun projects like glasses, a computer case side panel, and others. Even if it's not the same scientific material that inspired me to originally purchase this item, it's been fantastic.
T. Campbell
2025-08-28 10:24:29
This actually worked out really well. Try to avoid touching it as fingerprint oils can fill in the fine grooves in the diffraction grating (which would make that spot work more like clear plastic than prismatic diffraction material).I used this (along with card stock) to make a large diffraction grating for use in front of gas tubes to show the emission lines.It came in a roll which was then packed in a bag -- no wrinkles, creases, etc. (I suspect some reviews are for the single sheets vs. the roll.)
LeAnn Miller
2025-08-27 14:59:58
Very small. It's wrapped around itself to the diameter of a dime, no cardboard center.
Auburn
2025-08-12 18:47:48
High quality diffraction grating. Shows line emission spectra clearly. Helpful tip: When using, wear gloves or minimize handling with naked fingers, as oils from your skin will negatively impact the grating. It is still definitely usable with finger-oils, but the aesthetics of the grating look 'dirty'.
BMF_VETERAN
2025-07-29 17:42:55
Have not used it yet for my project, but tested and works well.
Sandy B
2025-07-26 14:04:50
I have been using diffraction grating materials for over 30 years. I am a Ph. D. chemist. This material turned out to be useless for me. Looking at a light source such as a He or Ne spectral tube there is essentially no separation of lines in a spectra. I found this material to be of no use and a waste of my money. I should have returned the material shortly after buying it; my fault.
Ross
2025-05-30 12:47:38
While this was not what I thought I was ordering, the fault is mine in that regard. I thought I was buying the dual axis diffraction film, but I now realize that the "linear" in the title means that it only diffracts across a single axis. This made it unsuitable for the art project I had in mind.However, even if it *had* been dual axis, I found that the high density of lines on this film also worked against me. I thought that 1,000 lines/mm would lead to a more stunning effect than the 13,500 lines/inch glasses I had previously experienced, but I now plan to order the latter density in dual axis. I don't know whether this truly merits docking one star, because the product is exactly as described and phenomenal at doing what it is advertised to do, but I feel that those who wish to use it for purposes other than scientific demonstration need indicators that there are better options.
lori
2025-05-03 15:29:34
Have this installed in my window and love seeing the rainbow dance around the room as the sun goes up and down.
Man Friday
2025-03-21 18:59:40
Die Folie ist das was beschrieben ist, und damit kann man sich ein Spektroskop basteln.ACHTUNG! Es gib vom selben Versender auch Beugungsgitterfolien, die nicht linear polarisieren, also nicht für Basteleien wie ein Spektroskop taugen. Die taugen aber für sehr schöne Regenbogeneffekte, wenn man sie in Fenster klebt.
Carolina
2025-02-07 15:03:49
At first it did not arrive but after some very pleasant contact with their Customer Service they sent a new one and now I have it. It looks and feels like great quality. I highly recommend 10/10 both on the product and the customer care!
Cliente
2025-01-31 18:31:31
il prodotto lo utilizzo per fabbricare uno spettrografo ed ha assolto appieno alla sua funzione di diffrangere la luce nel suo spettro
Platon
2025-01-13 12:30:30
Thank you!
Kunde
2024-12-30 11:02:52
Lieferant ist TOP - saubere Abwicklung, gute und günstige WareDie Post hat den Zoll (1,5 € geschätzt) vorgestreckt und für diesen "Dienst" stolze 16 € kassiert - also teurer als die Folie - dass nenne ich Abzocke (das nur als Warnung)
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