Activity Stream

Filter
Sort By Time Show
Recent Recent Popular Popular Anytime Anytime Last 24 Hours Last 24 Hours Last 7 Days Last 7 Days Last 30 Days Last 30 Days All All Photos Photos Forum Forums Groups Groups
  • Loreadarkshade's Avatar
    Yesterday, 19:01
    Loreadarkshade started a thread SELLING : Laser Diode Projector List in Buy/Sell/Trade
    Hello everyone I have a google spreadsheet of many known projectors and their laser diode contents, and it is open source (I take all new information puublicly and add it to the list, but the list remains private to prevent others from destroying it) I would like to ask the admins if they would...
    see more
    0 replies | 25 view(s)
  • laserist's Avatar
    Yesterday, 17:06
    laserist replied to a thread CYGN-A in The Lounge
    Bytes 15 & 16 had data after the Beatles show. Technically words 12-16 had function assigned for Griffith Park, but nobody else used those. Actually one was for master intensity and if anybody ever used it I'm not aware... And a lot of the new 16 bit block was ADIG stuff, and a bit or two image...
    see more
    133 replies | 17250 view(s)
  • Greg's Avatar
    Yesterday, 16:08
    Greg replied to a thread CYGN-A in The Lounge
    Some material, older and newer, has been inspected using the 352 viewer software. The unlabeled bytes 13, 14, and bits 1 to 5 of byte 16 appear to stay at zero in all of the shows. Although there was that one time... probably unintended noise. Byte 15 bit 6 is a candidate for maybe being the...
    see more
    133 replies | 17250 view(s)
  • laserist's Avatar
    09-20-2023, 16:06
    laserist replied to a thread CYGN-A in The Lounge
    No, they didn't usually take things away. (But with the DOG card they screwed up a bit) That would have screwed up the old shows. The additional rotation bit came with the expansion to the 352 data set to include 16 more bits that came with the Beatles show...
    see more
    133 replies | 17250 view(s)
  • Greg's Avatar
    09-20-2023, 15:30
    Greg replied to a thread CYGN-A in The Lounge
    Do you happen to remember if the 90 degrees replaced the 45 degrees, or was there a way that the operator or the system switched between the two?
    see more
    133 replies | 17250 view(s)
  • laserist's Avatar
    09-20-2023, 14:05
    laserist replied to a thread CYGN-A in The Lounge
    The z axis rotation was originally 45 degrees or all at zero, but later 90 degrees was added. What I think you're referring to is the manual rotation (red on the leverlite switches) was out of phase with the 351 image path and when in yellow on the leverlite switches would pump up the gain on one...
    see more
    133 replies | 17250 view(s)
  • Horseflesh's Avatar
    09-20-2023, 11:32
    Horseflesh replied to a thread Picture of crowd-scanning effect -- why is this safe? in Laser Displays, Shows, and Scanning
    Thank you Steve, that is super interesting and exactly the kind of overview I was hoping to get! Since I do see crowd scanning happening in casual shows like the video I linked, I was really confused about what was kosher. I thought surely, so many people aren't breaking the rules by blasting...
    see more
    6 replies | 214 view(s)
  • Greg's Avatar
    09-20-2023, 11:15
    Greg replied to a thread CYGN-A in The Lounge
    Brian, I think you explained this before, but I can't locate the comment. Is it correct that the fixed rotational intervals between beams could be either 45 degrees or 90 degrees, and that depended on leverlite switches, not on the data? And wasn't there something about a certain setting would...
    see more
    133 replies | 17250 view(s)
  • mixedgas's Avatar
    09-20-2023, 08:51
    mixedgas replied to a thread Picture of crowd-scanning effect -- why is this safe? in Laser Displays, Shows, and Scanning
    Audience scanning requires a variance, approved control system such as Pangolin's "Pass", each effect must be tested and documented as safe using a variety of precise, expensive, and calibrated equipment. A pre-show, instrumented, quality control session is required, and in some cases cumulative...
    see more
    6 replies | 214 view(s)
  • danielwilson's Avatar
    09-19-2023, 06:48
    danielwilson started a thread SELLING : 6x Red Laser Bar Including Cable in Buy/Sell/Trade
    6x Red Laser Bar 8 heads 637nm 1.5w Including Cables 4 years old only used around 100 hours . Very bright. Great Condition. Length 900mm Weight 4kg 5x 1m 3 pin dmx 4x 10m 2x 20m
    see more
    0 replies | 104 view(s)
  • HankLloydRight's Avatar
    09-19-2023, 06:43
    HankLloydRight replied to a thread Picture of crowd-scanning effect -- why is this safe? in Laser Displays, Shows, and Scanning
    While we're on the topic of crowd scanning, this looks totally not legal artist-scanning. Check out the bass player around the 2:00 minute mark. He's getting a constant face-full of laser -- it goes on that way for most of the video. https://youtu.be/Z4b6BPaO944?t=110 The divergence does...
    see more
    6 replies | 214 view(s)
  • VDX's Avatar
    09-18-2023, 22:06
    VDX replied to a thread Picture of crowd-scanning effect -- why is this safe? in Laser Displays, Shows, and Scanning
    .. if crowd-scanning is "safe" (legal) or not, depends mostly on energy density and timing of the beam - if it's higer than a specific threshold, then eye (or even skin) damages couldn't be avoided, so an absolute nogo! To get the laser below this "threshold" you can reduce the power and/or...
    see more
    6 replies | 214 view(s)
  • Horseflesh's Avatar
    09-18-2023, 18:45
    Horseflesh replied to a thread Picture of crowd-scanning effect -- why is this safe? in Laser Displays, Shows, and Scanning
    That sounds like you are thinking "this show is probably breaking the rules" but don't want to say it. :) I am not trying to get someone to formally evaluate this show as naughty as a gotcha. I'm really just tying to understand what kind of things are possible to do safely. Despite poking around...
    see more
    6 replies | 214 view(s)
  • Displaser's Avatar
    09-18-2023, 17:49
    Displaser replied to a thread Picture of crowd-scanning effect -- why is this safe? in Laser Displays, Shows, and Scanning
    Others will comment as well, I’d imagine… It was hard for me to see much in your photo, but… In the US, crowd scanning is only legal under certain conditions: 1) Proper training and safety understanding, LSO, etc. IMO 2) Proper hardware to safely perform crowd scanning 3) Varianced show...
    see more
    6 replies | 214 view(s)
  • absynth9's Avatar
    09-18-2023, 10:20
    absynth9 started a thread Laser Heat in Lasers, All Kinds.
    Hello everyone. New to lasers i got a laserworld ds-1000 rgb. I notice that after 1hour utilisation at 10kpps almost full angle with the app Modulaser it start getting seriously heat. How to deal with this? what kind of laser should have buy to use it more time? planning to use it for parties so it...
    see more
    0 replies | 173 view(s)
  • Horseflesh's Avatar
    09-18-2023, 10:16
    Horseflesh started a thread Picture of crowd-scanning effect -- why is this safe? in Laser Displays, Shows, and Scanning
    I've posted a number of dumb questions here and gotten great answers which have basically scared me away from ever having a laser projector, haha. But I remain curious because I do have a bit of the bug... You know how it is. I'd like to take courses but have not yet had the opportunity. I have...
    see more
    6 replies | 214 view(s)
  • brianpe's Avatar
    09-17-2023, 17:34
    brianpe replied to a thread Ideas for improving SHG efficiency in Q-switched DPSS laser? in Advanced Technical Discussion
    Interesting findings I spent a little bit of time messing with this: I reworked my Matlab code to handle both X and Y dimensions of the beam so it now works with astigmatism. I tweaked the cavity design. Instead of aiming for a cavity that is stable with no lensing, this cavity is not...
    see more
    10 replies | 1234 view(s)
  • JohnYayas's Avatar
    09-15-2023, 23:41
    JohnYayas replied to a thread Prayers Please for LaserSteve's Mom, Hospice in The Lounge
    I'm sorry for your loss, Steve.
    see more
    11 replies | 595 view(s)
  • Greg's Avatar
    09-15-2023, 22:40
    Greg replied to a thread CYGN-B in The Lounge
    Problem solved! Full Doors data recovered. Following line of code was all that was needed: // reject a range of values if ((aByte < -1) || (aByte > 1))
    see more
    889 replies | 210371 view(s)
  • lasermaster1977's Avatar
    09-15-2023, 21:53
    lasermaster1977 replied to a thread Prayers Please for LaserSteve's Mom, Hospice in The Lounge
    Sincerest sympathies, Steve.
    see more
    11 replies | 595 view(s)
  • Greg's Avatar
    09-15-2023, 20:38
    Greg replied to a thread CYGN-B in The Lounge
    Here's an analysis of an ADAT show that had no trouble yielding quality data. length of audio segment of data for Flashback80s = 23:36 data frames collected = 59732 so
    see more
    889 replies | 210371 view(s)
  • hybridz0rz's Avatar
    09-15-2023, 13:53
    hybridz0rz started a thread Illumination supply - Laser power meter in Advanced Technical Discussion
    Was bringing out some old laser equipment along with my LPM and found that the actual LPM head has split in two, Never seen a peltier element of this type split like this in storage. seems to be a 10mm x 10mm by 2 mm thickness element. has anyone else seen these types of elements break like...
    see more
    0 replies | 126 view(s)
  • HankLloydRight's Avatar
    09-15-2023, 03:30
    HankLloydRight replied to a thread Prayers Please for LaserSteve's Mom, Hospice in The Lounge
    Many condolences Steve.
    see more
    11 replies | 595 view(s)
  • laserist's Avatar
    09-15-2023, 01:53
    laserist replied to a thread CYGN-B in The Lounge
    Wow those are really ugly. One technique I used was to pump up the gain like 30 db (or more) and then clip it back down to move things back near a bipolar square wave.
    see more
    889 replies | 210371 view(s)
  • Greg's Avatar
    09-14-2023, 21:48
    Greg replied to a thread CYGN-B in The Lounge
    Here are comparison views of 352 signals from ADAT and 1/4" 4 track. The frame header skulking around zero in the ADAT signal is an obvious culprit of some decoding problems. Roj: Yes, I think so. General commentary: I'm seeing a lot of cycloids in the XYI tracks. Some look like they are...
    see more
    889 replies | 210371 view(s)
  • cfavreau's Avatar
    09-14-2023, 05:08
    cfavreau replied to a thread Prayers Please for LaserSteve's Mom, Hospice in The Lounge
    Steve, I am sorry for your loss. I am glad that you were able to be with your mom at an important time. , Chris F.
    see more
    11 replies | 595 view(s)
  • Greg's Avatar
    09-14-2023, 03:36
    Greg replied to a thread CYGN-B in The Lounge
    Here's a video of the intensity track doing what it is supposed to. Audio had to be removed. https://www.youtube.com/watch?v=7OAtIUapuwI
    see more
    889 replies | 210371 view(s)
  • Draco's Avatar
    09-14-2023, 01:33
    Draco started a thread LaserWave specs? LWGL532 in Lasers, All Kinds.
    Hello Does anyone know or have the specs for a green 532nm, LaserWave LWGL532? I think this laser may have been in a humid environment without an Apture window installed. When this first came to me it would not turn on, now it does and lases but I have no idea what the OEM beam power is, and this...
    see more
    0 replies | 179 view(s)
  • dchammonds's Avatar
    09-13-2023, 22:58
    dchammonds replied to a thread Prayers Please for LaserSteve's Mom, Hospice in The Lounge
    Condolences to you and your family, Steve. Dean
    see more
    11 replies | 595 view(s)
More Activity