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  1. lasergal

    Why Did Holograms Go Out of Favor?

    I just bought a vintage hologram watch that the seller listed as "no longer being produced", and that reminded me of how popular holograms (as a novelty) were during the 1980s. Back then, I had a catalog of hologram jewelry that I looked over many times and wished I could get...I still have a...
  2. lasergal

    What causes light leakage?

    Forgive me for creating a new thread on a subject that I'm sure I've read about here before, but I did a search and came up empty on the subject. What causes some cheap pointers to leak light? I mean visible laser light that appears in places other than just the beam and/or dot. I've seen a...
  3. lasergal

    Are X-rays really this easy to make?

    I like looking up things online, just for fun. There are several videos of people who claim they have produced X-rays from simple, common things such as nightlight bulbs. This is one example: Producing X-rays from a Cheap Light Bulb! - YouTube I haven't searched for it, but there was also one...
  4. lasergal

    Too Cool Not To Share!

    I just have to share with you my latest treasure. It's not a laser, it's a book. A book about lasers. By the man who made the first one. Not remarkable maybe, but I just found out about this book a couple of weeks ago (it was published 13 years ago) and even though Maiman has been one of my...
  5. lasergal

    So I went to the fair yesterday

    A fair is a great place to see free (and not so free) entertainment. While strolling around the grounds I came upon a friendly performer who was happy to demonstrate his unique talent with only me for an audience: :crackup: I felt bad that I decided to leave before the second act. Oh well...
  6. lasergal

    UFO? Doubtful. But what DID I see?

    Last week I spent a few days camping in eastern Oregon. I was off on my own just outside the woods after dark. I was watching the sky, looking for meteors, when I noticed a white light, like an airplane, slowly moving across the sky. But unlike an airplane, it had no flashing lights. I looked...
  7. lasergal

    I would rather have my days off than overtime pay!

    I work retail and a few months ago transferred to a store closer to where I live. At my previous store, we NEVER worked overtime (except on very rare occasions, and you weren't obligated). But here, while I really like my new boss, she is a workaholic and seems to think that everyone wants as...
  8. lasergal

    Yellow HeNe?

    I know about the green ones, I've heard of orange, but yellow? They must not be very common either. If anyone here is interested, here's the link: Laser Chorus Yellow HeNe Laser Tube (Last One) Hard to find! | eBay I'm not planning on bidding on this for several reasons, but I admit I...
  9. lasergal

    PS Woes!

    Okay, I guess I'm officially bitten by the gas laser bug since I recently got my third HeNe, lol! I saw a nice one on eBay that was similar to one of my others, and it was in good working order (shown in a photo) and was a very good price. But I haven't been able to use yet it because of the...
  10. lasergal

    Out of alignment?

    I have read that gas lasers can become out of alignment. This is something new to me, as I haven't heard of it before. How can you tell if one is? How is it fixed? Also, can other types of lasers, especially diodes, be out of alignment as well?
  11. lasergal

    What is your OLDEST HeNe or other gas laser (working)?

    I have a 1994 and a 1987. Does anyone have any from, say, the 1970s or even the 1960s, that still work just fine? I'd like to hear from anyone who owns a 'vintage' working gas laser! :wave:
  12. lasergal

    New novelty idea: Laser earrings!

    OK, this is kinda silly, but... There's this gas station and convenience store sort of across the street from where I live, and I noticed that they were selling some very small (maybe a couple of inches long) cheapie pointers on key chains. These things usually don't work very well or for very...
  13. lasergal

    Why are button batteries so expensive?

    I have a couple o' cheapie pointers that take button batteries. Generally they use 3 batteries, and looking around at most stores those batteries sell individually for around $3.00. That would be approx. $9.00 to re-fill a pointer that cost only two or three bucks in the first place! It's...
  14. lasergal

    I just don't get it....

    $500 + for a NON-WORKING HeNe? Showa HeNe Laser GLG5414 Not Working AS-IS | eBay I'm not understanding why they would think that it's worth that when it doesn't work. If it was something a little more exotic, like an Argon, or even a green HeNe, then maybe- if it could be fixed. But a plain...
  15. lasergal

    Finally got my Hughes HeNe...

    ...But I'm just a little tiny bit intimidated to try it out yet. Why? Because of this warning paragraph that came with it: 'CAUTION: Do not touch the ends of HV connector immediately after the laser has been operated. Although the electric charge stored in the laser head begins to decrease...
  16. lasergal

    This kinda thing makes me so mad!

    I saw a high-powered green on an auction site (not eBay) with several bidders. Many of the bidders were leaving messages such as "I hope I win this!" etc. One guy said he really wanted it for his son's 9th birthday. Now, perhaps he is a responsible father who will supervise his kid with it and...
  17. lasergal

    I did it...I bought another one.

    I agonized about getting this because I really don't need it...but it seemed to be reasonable in price and in good working condition, and even included the manual: Hughes 3227H-C Helium-Neon Linear Laser 7-15mW min/max w/ Power Supply & Manual | eBay And the fact that it was made by Hughes and...
  18. lasergal

    The Care and Feeding...

    I recently got my first HeNe (a little Uniphase Novette) and was wondering if there are any particular rules to follow to proper care for my new pet so it lives a long and fullfilling life. Is it fine being used infrequently? Or should it be regularly turned on? What about the best...
  19. lasergal

    Why are diode lasers different?

    Sorry if this has been discussed elsewhere, but I searched and Googled and still can't find a satisfactory answer, and this question has nagged me for years: If one of the chief characteristics of laser light is its coherence, why then are the beams from diode lasers any less coherent than from...
  20. lasergal

    Am I the only lady who likes lasers???

    I've been a lurker on here for quite a while, and was kind of nervous joining because I never see any other women on here. I also feel kind of lost reading some of the posts, because I'm not terribly technical. (I know, roll eyes...typical female, lol!) But I understand the basics of how...




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