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Thread: Galvo scanner history

  1. #21
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    Quote Originally Posted by dsli_jon View Post
    Good call! Those were actually pretty-good scanners, quite tough, and fairly-precise...They're long 'OOB', now, but they also had a super-wide (..for the time..) angle-scanner, used for 'Q-Beams' and Mobo's, and, some other higher-end, more-precision ones.. https://web.archive.org/web/20080508...s.us/scanners/ ..'Date wise', the first interactions I had with them were around 1991-92, and they already had the SS350's well-established, so.. I'd guess, Circa 1987-1988, at least..

    ...and they had a *really* awesome little 'all-in-one' mini lissajous-projector, the 'MicroScan', iirc, that would fit inside of a VCR-tape's footprint.. I had one in like 1992, and.. sold it like a fool.. Thing was really well-designed / made, and quite the blast, even-if it was 'only' a lissajous-pj..

    ..cool list..
    j
    It is pretty amazing what kind of performance Selwyn got out of his modded steppers. I remember Laserworks from the time I worked at MWK (mid 90s). I got to see a lot of them in action as we demo'd them for customers. I used to drool over them because I knew I'd never be able to afford a "flatpack". At the time, they were one of the few alternatives to the GS galvos. I had to settle for the G124s w/o accelerator cards. My first laserworks scanners were the big sliver ss2000s. I think I still have one of the guts lying around. Super wide scan angle and I was able to get them tweaked to do 10K. Good times!
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  2. #22
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    This is one of the first patents by one of the founders of General Scanning:

    https://docs.google.com/viewer?url=p.../US3434082.pdf

    The above is NOT what is in a G120, but you can see the start...

    Steve
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  3. #23
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    Just happen to have all my GS product brochures, product articles and price lists, circa 1977 thru around 1985.
    The first optical scanner offerings included the G-060, G-100, G-200 and G-300. Then they came out with the G-100PD, G-100PDT, G-300PD and G-300PDT. PD = Position Detection, PDT = Position Detection with Thermal blanket for thermal stability. Then there were their resonant scanner "S" series, S-100 and S-200.

    In the GS 1979 "Series G Optical Scanner" line sheet, the G-series broke out into different sub-models based on their peak-to-peak scan angles. (G-0606, G0612, G-102, G-108, G-112, G-115, G-124, G-302, G-306, G-310, G-320 and, G-330). The G-06xx were high-speed resonant scanners.

    In 1978, one of the earliest price lists I got from GS shows they sold the G-100's for $205/ea, the G-100PD's for $405/ea. At the time in late 1977, I could only afford to buy 4 pairs of G-115 open loop scanners for RYGB at the $205/ea. price. Just months later the prices jumped up to $245/ea. and $495/ea. respectively.

    The early to mid-80's brought about the G120D, GF220D, G325D and G250D (this from a GS 1983 color marketing brochure). On these models D=PD, they just dropped the "P" and at this time they provided a DB-15 connector with the scanner that terminated the coil wires and the position detection/thermal blanket wires. Their resonant scanner line had expanded at this time to the IFS, IDS and ISX models. IFS scanners could achieve a resonant scan of 3,937 Hz, IDS 600-3,000 Hz, ISX 100-250 Hz.

    Well, so that's a tiny glimpse into the past.
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  4. #24
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    Wow, great comment Lasermaster!
    Quote Originally Posted by lasermaster1977 View Post
    Just happen to have all my GS product brochures, product articles and price lists, circa 1977 thru around 1985.
    The first optical scanner offerings included the G-060, G-100, G-200 and G-300. Then they came out with the G-100PD, G-100PDT, G-300PD and G-300PDT. PD = Position Detection, PDT = Position Detection with Thermal blanket for thermal stability. Then there were their resonant scanner "S" series, S-100 and S-200.

    In the GS 1979 "Series G Optical Scanner" line sheet, the G-series broke out into different sub-models based on their peak-to-peak scan angles. (G-0606, G0612, G-102, G-108, G-112, G-115, G-124, G-302, G-306, G-310, G-320 and, G-330). The G-06xx were high-speed resonant scanners.

    In 1978, one of the earliest price lists I got from GS shows they sold the G-100's for $205/ea, the G-100PD's for $405/ea. At the time in late 1977, I could only afford to buy 4 pairs of G-115 open loop scanners for RYGB at the $205/ea. price. Just months later the prices jumped up to $245/ea. and $495/ea. respectively.

    The early to mid-80's brought about the G120D, GF220D, G325D and G250D (this from a GS 1983 color marketing brochure). On these models D=PD, they just dropped the "P" and at this time they provided a DB-15 connector with the scanner that terminated the coil wires and the position detection/thermal blanket wires. Their resonant scanner line had expanded at this time to the IFS, IDS and ISX models. IFS scanners could achieve a resonant scan of 3,937 Hz, IDS 600-3,000 Hz, ISX 100-250 Hz.

    Well, so that's a tiny glimpse into the past.

  5. #25
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    1998, Cambridge 6210 60K
    1998, Cambridge 6215 24K to 30K (Type 'H' is ilda awards 2004)
    Shouldn't this be

    1998, Cambridge 6210 24K to 30K
    1998, Cambridge 6215 24K to 60K (Type 'H' is ilda awards 2004)
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  6. #26
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    I was found this informations on the laserist website: http://www.laserist.org/awards2004.htm
    2004 TECHNICAL AWARDS
    Hardware Product of the Year "6215H Galvo and Associated Driver Amplifiers", Cambridge Technology





    Quote Originally Posted by loopee View Post
    Shouldn't this be

    1998, Cambridge 6210 24K to 30K
    1998, Cambridge 6215 24K to 60K (Type 'H' is ilda awards 2004)

  7. #27
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    Yes, there were actually several scanners put out by Laser Works. Also missing from your list is a closed-loop scanner from Bulova (perhaps also going under the name American Time Products), and also missing several models of scanners put out by the Italian company GalvoLine, and also scanners put out by LSK (Laser Scanning Kaiser) which were a copy of the G120, and I am sure a few others as well. Even Joachim Mueller put out his "Wide move" scanners too. In 2002 I demonstrated our "moving mirror scanner" concept on the small projector (pictures are here on PL somewhere).

    So quite a few more could be added to the list if you wanted to make a complete list.

  8. #28
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    Hey Bill, thank you for the reply.
    Anyone can add a new list informations. Who have scanner information, to add to the a list, please.
    The list include 2003, M9024 24K-26K (jmlaser) This is the 'Wide move'.

    Quote Originally Posted by Pangolin View Post
    Yes, there were actually several scanners put out by Laser Works. Also missing from your list is a closed-loop scanner from Bulova (perhaps also going under the name American Time Products), and also missing several models of scanners put out by the Italian company GalvoLine, and also scanners put out by LSK (Laser Scanning Kaiser) which were a copy of the G120, and I am sure a few others as well. Even Joachim Mueller put out his "Wide move" scanners too. In 2002 I demonstrated our "moving mirror scanner" concept on the small projector (pictures are here on PL somewhere).

    So quite a few more could be added to the list if you wanted to make a complete list.

  9. #29
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    Resurrecting this thread, I have a few GSI scanners that are from Surgilase handpieces; they're obvioulsy OEM units and are marked 300B022. I've opened one up and have found that they have an optical PD with very limited electronics, the remainder of the electronics being on the PCB in the handpiece (current drive for the LEDs, position limit and temperature limit monitors, etc. I've tried digging up some data on these with little luck, but I have found possible connections with Coherent and Lumenis surgical handpieces, although that led nowhere as well. Anyone got any idea of the details of these little galvos?

  10. #30
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    Yes indeed, I just came across this thread and, specifically Steve's post with the patent.

    At the present time those GS scanners have been discontinued. For people who use the open-loop scanner such as G102, G115 or G124, there is no open-loop replacement.

    We found that we could add a little "adapter cap" to our Compact 506, and it will fit pretty nicely into the space formerly occupied by these G-series scanners.

    I wrote an article about this a few months ago here:
    https://www.scannermax.com/scannerma...ries-scanners/

    Is anyone here on PL still using G-series scanners? At one of the past SELEM, I saw DZ still had G-120s running with our old TurboTrack amps...


    Best regards,

    William Benner

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