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Thread: Replacing Red module.

  1. #1
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    Default Replacing Red module.

    Hi all, my projector has a crappy FAT laser module 635nm 300 mW. What would be a decent replacement? a laser module with a round dot instead of a brick.
    It's a 12V. soneone have a link ?

    It looks like this:

    Click image for larger version. 

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    It would be great if it would be in the same housing, so i can just replace it.

    the rest of the lasers are:

    G: 532nm 200MW
    B: 450nm 500W

    Thanks!

  2. #2
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    How much are you looking to spend? KVANT has 400mW DPSS reds that would probably fit. They aren't cheap but they will give you an awesome beam profile. Most likely TEM00

    http://kvantlasers.sk/product/400mw-...r-module-kvant

    They require 24V though. Not sure if this would work for you or not.

    Your only other route is going to be two single mode 180mW 638nm diodes with a PBS.
    Those who fail to grasp art are the ones who criticize it.

  3. #3
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    Well, it's a cheap ass Chinese projector, so I'm not going to spend 2,250 € for 1 module ;-) It must be a cheap module as long as it has a decent beam and is 12 V

  4. #4
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    Quote Originally Posted by Lassie View Post
    Well, it's a cheap ass Chinese projector, so I'm not going to spend 2,250 for 1 module ;-) It must be a cheap module as long as it has a decent beam and is 12 V
    Yeah, that's a comical price for 400mW of red, albeit, I'm sure its a really nice module with unique characteristics that someone needs and is willing to pay for.

    To further absololm's suggestion you could buy:

    2 of these https://sites.google.com/site/dtrlpf...le-mode-diodes with 3 element glass lenses (or G-2s)
    1 PBS cube from here: http://lasershowparts.com/store/inde...atId=85&page=0
    1 pbs cube mount: http://lasershowparts.com/store/inde...&productId=210 (ask Dave to invoice you for a red PBS cube)
    2 diode mounts here: http://lasershowparts.com/store/inde...&productId=302
    1 diode driver with beam suppression here: http://lasershowparts.com/store/inde...&productId=304
    and some spare alum plate (or gut the module you've got) will allow you to make a 400mW plus of single mode 638nm red. This will pair well with the stated values for your green and blues in a compact footprint driven by 12V. The total price with shipping should run you about US$250.

    You could also skin this cat with a single multimode diode https://sites.google.com/site/dtrlpf...m-500mw-diodes (or other similar multimode diodes)
    One of these: http://lasershowparts.com/store/inde...&productId=282
    and corrective lenses here: http://lasershowparts.com/store/inde...&productId=308
    plus the same diode driver. This would result in a longer (length) but thinner (width) corrected multi-mode module for about the same price.

    Finally, you could also just purchase the corrective kit and have a go attempting to adjust the optics in your current red, but I don't know which diode it is and how well it would work out for you. We also don't know from your post if you have TTL drivers or analog. Analog is preferable and reflected with the driver option described above.

    Happy tinkering!

    -David
    "Help, help, I'm being repressed!"

  5. #5
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    Ohhhh. thanks dkumpula for this AWESOME information and all the links!! I'm sure this will help me build a better projector!

  6. #6
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    swamidog is offline Jr. Woodchuckington Janitor III, Esq.
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    Quote Originally Posted by dkumpula View Post
    Yeah, that's a comical price for 400mW of red, albeit, I'm sure its a really nice module with unique characteristics that someone needs and is willing to pay for.


    -David
    the most unique characteristic being the price..
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  7. #7
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    Get two of the 638nm mits single mode diodes and combine with pbs cube. That will give you 300 ish mw. Stack two diodes and then waveplate a set into a pbs cube for near 600-800mw. Cost if you are handy is under 500.00. I use mm1's for the cube and mirrors. It's a little larger footprint but the result is really good. The diodes over drive to 200mw with ease.

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