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Thread: Solar UV exposure meter - for printing processes

  1. #1

    Join Date
    Jun 2006
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    Brazil
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    Solar UV exposure meter - for printing processes

    Hello, I would like to share with you a project that may be interesting for those doing printing processes using UV light. The idea is a device that allows you to print using sunlight and get constant results. You can make a test strip in the morning, print in the afternoon and get the desired densities even under a different lighting condition.

    The reason for that is that the device "counts energy" and beeps when the preset level was reached. The time may, and in most of the times will, be different but the total amount of UV your print received will be the same.

    This is a link to a video demonstration. The complete project is available in my web site. The link you will find in the video description.

    Hope you like it.

    https://youtu.be/42rwjuU4VrQ
    Last edited by lungovw; 27-Jul-2020 at 17:42. Reason: Sorry, previously I added the link for the Portuguese version

  2. #2
    Tin Can's Avatar
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    Dec 2011
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    14,980

    Re: Solar UV exposure meter - for printing processes

    I like it!

    Thanks for posting

    Got on your website

    I will try

    Is it OK to post your website directly?

    Or you do it, so much good data there
    wear mask or NOT

    is ???

  3. #3
    Eric Woodbury
    Join Date
    Dec 2003
    Posts
    1,445

    Re: Solar UV exposure meter - for printing processes

    A few of my customers over the years have used their MetroLux in this fashion. This is the reason a MetroLux can such long exposures. A special photo diode and filter is required as our standard silicon diode 'sees' too much out of band radiation and very little UV.
    my picture blog
    ejwoodbury.blogspot.com

  4. #4
    Tin Can's Avatar
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    Re: Solar UV exposure meter - for printing processes

    Metrolux II never saw one

    https://www.largeformatphotography.i...l=1#post159133


    Quote Originally Posted by Eric Woodbury View Post
    A few of my customers over the years have used their MetroLux in this fashion. This is the reason a MetroLux can such long exposures. A special photo diode and filter is required as our standard silicon diode 'sees' too much out of band radiation and very little UV.
    wear mask or NOT

    is ???

  5. #5

    Join Date
    Nov 2008
    Location
    Atlanta, GA
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    655

    Re: Solar UV exposure meter - for printing processes

    Sounds similar to the integration unit on a UV plate burner, shoul be very useful.

  6. #6
    Photographer
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    Feb 2001
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    Pine Junction, CO
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    870

    Re: Solar UV exposure meter - for printing processes

    It’s a good idea, but it has already been done. There are at least two UV light integrators out there.
    Keith Pitman

  7. #7
    Tin Can's Avatar
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    Re: Solar UV exposure meter - for printing processes

    What are they? Where do we buy?

    Do they have a signal----buzzer, lamp, BT?

    Are they DIY?

    Quote Originally Posted by Keith Pitman View Post
    Itís a good idea, but it has already been done. There are at least two UV light integrators out there.
    wear mask or NOT

    is ???

  8. #8
    Photographer
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    Feb 2001
    Location
    Pine Junction, CO
    Posts
    870

    Re: Solar UV exposure meter - for printing processes

    Quote Originally Posted by Tin Can View Post
    What are they? Where do we buy?

    Do they have a signal----buzzer, lamp, BT?

    Are they DIY?
    Try ianleake.com and lightmeasure.com.
    Keith Pitman

  9. #9
    Tin Can's Avatar
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    Re: Solar UV exposure meter - for printing processes

    Last year I bought his PPM-2.1 UV exposure dose meter and have just started using it, works fine

    I see he has upgraded to http://www.lightmeasure.com/ppm-2-meter-external-sensor

    I am going to make the DIY one with this, which seems to be the part used in many

    Quote Originally Posted by Keith Pitman View Post
    Try ianleake.com and lightmeasure.com.
    wear mask or NOT

    is ???

  10. #10
    Vaughn's Avatar
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    Jan 2007
    Location
    Humboldt County, CA
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    7,924

    Re: Solar UV exposure meter - for printing processes

    I have the older lightmeasure devise (PPM-2). The Model 3 has some nice features (the audio signal upon reaching one's desired exposure is pretty cool.)
    Last edited by Vaughn; 29-Jul-2020 at 20:48.
    "Landscapes exist in the material world yet soar in the realms of the spirit..." Tsung Ping, 5th Century China

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