What is the Purpose of This Aluminum Laser with No Markings?

  • Thread starter Thread starter dmar
  • Start date Start date
  • Tags Tags
    Laser
Click For Summary
SUMMARY

The discussion centers on an unidentified aluminum laser device discovered by a former space shuttle engineer. The device is a diode laser in a TO-5 transistor package, with a power output of 1mW and a wavelength likely around 670nm, indicating it is a low-power red laser. Participants suggest its purpose may relate to opto-mechanical alignment systems, potentially for calibration or aiming applications, though its exact use remains speculative due to the lack of identifiable markings.

PREREQUISITES
  • Understanding of diode laser technology and specifications
  • Familiarity with TO-5 transistor packaging
  • Knowledge of laser safety and warning regulations
  • Basic principles of optical alignment systems
NEXT STEPS
  • Research diode laser applications in opto-mechanical alignment
  • Explore the principles of laser safety and regulatory compliance
  • Investigate the design and functionality of TO-5 packages
  • Study optical boresighting techniques and their applications
USEFUL FOR

Engineers, optical technicians, and hobbyists interested in laser technology, calibration systems, and optical alignment applications will benefit from this discussion.

dmar
Messages
1
Reaction score
0
TL;DR
What is this laser?
Hello smart folks! I recently discovered this item in the estate of a former space shuttle engineer. He was responsible for replacing major components on the space shuttles as well as the crawler. It has no property markings…only the laser warning sticker. My curiosity has me here to, hopefully, find someone that can identify it and it’s intended purpose. It weighs about 6 lbs and is constructed of aluminum. I have spent countless hours researching and cannot find anything like it anywhere. Any help would be greatly appreciated! Thanks for taking the time, Dave
 

Attachments

  • 1793F38B-16AE-4F1D-82EF-6FEC62FDB202.jpeg
    1793F38B-16AE-4F1D-82EF-6FEC62FDB202.jpeg
    60.9 KB · Views: 172
  • 875D23C8-16BE-44B6-9DD7-0AF7AC6450BB.jpeg
    875D23C8-16BE-44B6-9DD7-0AF7AC6450BB.jpeg
    30.8 KB · Views: 167
  • 8FFC4993-B5BB-405C-A971-00FB7AB600D7.jpeg
    8FFC4993-B5BB-405C-A971-00FB7AB600D7.jpeg
    46.3 KB · Views: 163
Physics news on Phys.org
I can't read all of the label, but here is what I've found:

  • The manufacturer still shows up on a Google search
  • The two patents on the label indicate that it is a diode Laser in a TO-5 transistor package
  • It appears to be a pre-aligned assembly in that conical package for accurate aiming
  • The power output is 1mW (low power, as used in Laser pointers)
  • The wavelength can not be completely deciphered in the photo but seems to be in the range of Dark Red to Near Infrared.

Cheers,
Tom
 
  • Like
Likes   Reactions: Mike Gaffer and Klystron
Note that manufacturers must put their warning stickers where humans can see them. Not necessarily where the laser actually is. I suspect there is much about that conical thing that is the result of ancillary requirements. Most 1mW diode lasers don't look like that.

Your photo of the label is really really hard to read, so what's the point of posting it? I think it says 670nm, which would be a common red diode laser wavelength. If the peak power is 1mW, that isn't very informative of the actual power, since it's so low. I would presume it's CW with such low peak power.

Anyway, there are lots of things you could do with a low power red laser, we won't know about the application from the warning label. As if I showed you a picture of a light bulb and asked what it was used to illuminate. If I had to place an uneducated bet, I'd go for some opto-mechanical alignment system (i.e. a pointer).
 
  • Like
  • Informative
Likes   Reactions: Mike Gaffer, Twigg and Klystron
I concur with both previous posts.

The rigid conical housing provides alignment for calibration when slotted into correct aperture. This article on optical boresighting includes a section on laser alignment of firearms, not to imply your souvenir relates to a weapon system.
 

Similar threads

Replies
8
Views
5K