Shop OBEX P1 Docs P2 Docs Learn Events
laser diode — Parallax Forums

laser diode

ArchiverArchiver Posts: 46,084
edited 2001-10-20 04:11 in General Discussion
I have a laser diode that I want to use. It is a Hitachi laser diode
class IIIb laser type: HL8314E. It was made in 1986 and its peak power
is 30mW. I want to know what voltage it uses and can I hook it up to a
basic stamp 2. thanks





































[noparse][[/noparse]Non-text portions of this message have been removed]

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2001-10-17 23:27
    I haven't done this, but I recently ran across the most useful page on
    lasers here:

    http://www.repairfaq.org/sam/laserfaq.htm

    It shows you how to build power supplies for a laser -- you can't run it
    directly from the stamp -- the supply needs to be current limiting and
    current regulated otherwise you will have a stamp attatched to a broken
    laser diode. You could of course turn the supply on or off with the
    Stamp. The site also has useful info on what peak power means and whether
    you should expect to get that rating from your laser. I was up until late
    the night I ran across this page.

    Hope that helps,

    Nick


    On Wed, 17 Oct 2001, tad@h... wrote:

    > I have a laser diode that I want to use. It is a Hitachi laser diode
    > class IIIb laser type: HL8314E. It was made in 1986 and its peak power
    > is 30mW. I want to know what voltage it uses and can I hook it up to a
    > basic stamp 2. thanks
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and Body
    of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2001-10-17 23:44
    That's a pretty good sized diode. Most laser diode modules have power
    regulation systems built into them that you can drive in the range of 3-6
    volts. My 3mw ones draw about 50mw, which is the output of the BS2. I
    would use a transistor or some such to control the output of the BS2
    otherwise you're going to pull too much current.


    On Wed, 17 Oct 2001, tad@h... wrote:

    > I have a laser diode that I want to use. It is a Hitachi laser diode
    > class IIIb laser type: HL8314E. It was made in 1986 and its peak power
    > is 30mW. I want to know what voltage it uses and can I hook it up to a
    > basic stamp 2. thanks
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and Body
    of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >

    Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
    Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
    email: lamont@a... WWW: http://www.serv.net
    "...There's no moral, it's just a lot of stuff that happens". - H. Simpson
  • ArchiverArchiver Posts: 46,084
    edited 2001-10-18 02:10
    I built the following laser power supply from
    http://www.repairfaq.org/sam/laserdps.htm#dpstoc

    And it worked!!!


    In +
    + Out R1 .25 ohms
    Vin o----| LM338 |
    /\/\/----+
    o 0 to 5 A current source
    +
    + |
    | Adj. +----+
    | cw | |
    | 1K ^ / _|_,
    +
    >\ '/_\ LM385-1.2
    / |
    | |
    +----+
    |
    +
    +
    | I = 0.5 to 1.5 mA sink |
    +
    +
    _|_
    -

    Jay
  • ArchiverArchiver Posts: 46,084
    edited 2001-10-19 16:12
    I found my laser on the internet here:
    http://www.mi-lasers.com/laser_diodes.html its the 60 dollar one.
    COMMON
    |
    |
    |
    +
    +
    +
    | |
    _|_ ______ |
    PD /_\ \ \_/ LD
    | <_____\ |
    | |

    This is as close as I can get it if you want to see the gif go to the
    web page. It shows that it has 3 leads. I want to know what PD and LD
    means and what voltage it runs at and since I wont be able to get to
    radio shack every time I need something I need to know what I need
    before hand

    Thanks




    Jay Hanson wrote:

    >I built the following laser power supply from
    >http://www.repairfaq.org/sam/laserdps.htm#dpstoc
    >
    >And it worked!!!
    >
    >
    > In +
    + Out R1 .25 ohms
    > Vin o----| LM338 |
    /\/\/----+
    o 0 to 5 A current source
    > +
    + |
    > | Adj. +----+
    > | cw | |
    > | 1K ^ / _|_,
    > +
    >\ '/_\ LM385-1.2
    > / |
    > | |
    > +----+
    > |
    > +
    +
    > | I = 0.5 to 1.5 mA sink |
    > +
    +
    > _|_
    > -
    >
    >Jay
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and Body
    of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2001-10-19 16:16
    .............oh well ......so much for ascii art cheak the web site [noparse]:)[/noparse]

    tad@h... wrote:

    >I found my laser on the internet here:
    >http://www.mi-lasers.com/laser_diodes.html its the 60 dollar one.
    > COMMON
    > |
    > |
    > |
    > +
    +
    +
    > | |
    > _|_ ______ |
    > PD /_\ \ \_/ LD
    > | <_____\ |
    > | |
    >
    >This is as close as I can get it if you want to see the gif go to the
    >web page. It shows that it has 3 leads. I want to know what PD and LD
    >means and what voltage it runs at and since I wont be able to get to
    >radio shack every time I need something I need to know what I need
    >before hand
    >
    >Thanks
    >
    >
    >
    >
    >Jay Hanson wrote:
    >
    >>I built the following laser power supply from
    >>http://www.repairfaq.org/sam/laserdps.htm#dpstoc
    >>
    >>And it worked!!!
    >>
    >>
    >> In +
    + Out R1 .25 ohms
    >> Vin o----| LM338 |
    /\/\/----+
    o 0 to 5 A current source
    >> +
    + |
    >> | Adj. +----+
    >> | cw | |
    >> | 1K ^ / _|_,
    >> +
    >\ '/_\ LM385-1.2
    >> / |
    >> | |
    >> +----+
    >> |
    >> +
    +
    >> | I = 0.5 to 1.5 mA sink |
    >> +
    +
    >> _|_
    >> -
    >>
    >>Jay
    >>
    >>
    >>To UNSUBSCRIBE, just send mail to:
    >> basicstamps-unsubscribe@yahoogroups.com
    >>
    >>from the same email address that you subscribed. Text in the Subject and Body
    of the message will be ignored.
    >
    >>
    >>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >>
    >>
    >
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and Body
    of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >



    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2001-10-20 02:12
    PD is "photo diode" and can be used as part of a current limiting circuit.
    The circuit I use doesn't need it. Read all the material at the Sam's FAQ
    before you go any further...

    http://www.repairfaq.org/sam/laserfaq.htm

    Jay
    Original Message
    From: tad@h... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=kpGNMr0-Yk-IhzcMRBah_HT4b_Bb3ehTLDt10G5jQYQ2lbDre7ypzeNQgeVJxcl4xR99J0VZaQ]tad@h...[/url
    Sent: Friday, October 19, 2001 5:13 AM
    To: basicstamps@yahoogroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] laser diode


    I found my laser on the internet here:
    http://www.mi-lasers.com/laser_diodes.html its the 60 dollar one.
    COMMON
    |
    |
    |
    +
    +
    +
    | |
    _|_ ______ |
    PD /_\ \ \_/ LD
    | <_____\ |
    | |

    This is as close as I can get it if you want to see the gif go to the
    web page. It shows that it has 3 leads. I want to know what PD and LD
    means and what voltage it runs at and since I wont be able to get to
    radio shack every time I need something I need to know what I need
    before hand

    Thanks




    Jay Hanson wrote:

    >I built the following laser power supply from
    >http://www.repairfaq.org/sam/laserdps.htm#dpstoc
    >
    >And it worked!!!
    >
    >
    > In +
    + Out R1 .25 ohms
    > Vin o----| LM338 |
    /\/\/----+
    o 0 to 5 A current source
    > +
    + |
    > | Adj. +----+
    > | cw | |
    > | 1K ^ / _|_,
    > +
    >\ '/_\ LM385-1.2
    > / |
    > | |
    > +----+
    > |
    > +
    +
    > | I = 0.5 to 1.5 mA sink |
    > +
    +
    > _|_
    > -
    >
    >Jay
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >



    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.


    Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
  • ArchiverArchiver Posts: 46,084
    edited 2001-10-20 02:21
    I forgot to mention, I got my diode from DigiKey for ten bucks.

    Jay
    Original Message
    From: Jay Hanson [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=6mk4rRkDwjuG5RF1G7rDmBLOBM5M6RE74GvEvFJN4A1RJVM8u7HHihepxIir66WdpHcxmAOr]j@q...[/url
    Sent: Friday, October 19, 2001 3:13 PM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] laser diode


    PD is "photo diode" and can be used as part of a current limiting circuit.
    The circuit I use doesn't need it. Read all the material at the Sam's FAQ
    before you go any further...

    http://www.repairfaq.org/sam/laserfaq.htm

    Jay
    Original Message
    From: tad@h... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=OKTV5vepyKD9wmI0WMI54rDZTolxpUAalSXZWD_2bFhapr-nFlVflIPrCrbAqHCFHyet_vI9pXQ]tad@h...[/url
    Sent: Friday, October 19, 2001 5:13 AM
    To: basicstamps@yahoogroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] laser diode


    I found my laser on the internet here:
    http://www.mi-lasers.com/laser_diodes.html its the 60 dollar one.
    COMMON
    |
    |
    |
    +
    +
    +
    | |
    _|_ ______ |
    PD /_\ \ \_/ LD
    | <_____\ |
    | |

    This is as close as I can get it if you want to see the gif go to the
    web page. It shows that it has 3 leads. I want to know what PD and LD
    means and what voltage it runs at and since I wont be able to get to
    radio shack every time I need something I need to know what I need
    before hand

    Thanks




    Jay Hanson wrote:

    >I built the following laser power supply from
    >http://www.repairfaq.org/sam/laserdps.htm#dpstoc
    >
    >And it worked!!!
    >
    >
    > In +
    + Out R1 .25 ohms
    > Vin o----| LM338 |
    /\/\/----+
    o 0 to 5 A current source
    > +
    + |
    > | Adj. +----+
    > | cw | |
    > | 1K ^ / _|_,
    > +
    >\ '/_\ LM385-1.2
    > / |
    > | |
    > +----+
    > |
    > +
    +
    > | I = 0.5 to 1.5 mA sink |
    > +
    +
    > _|_
    > -
    >
    >Jay
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >



    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.


    Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/




    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.


    Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
  • ArchiverArchiver Posts: 46,084
    edited 2001-10-20 04:11
    I had my grandfather to look at it and he said it is an invisible laser.
    Any suggestions on using them?

    Jay Hanson wrote:

    >PD is "photo diode" and can be used as part of a current limiting circuit.
    >The circuit I use doesn't need it. Read all the material at the Sam's FAQ
    >before you go any further...
    >
    >http://www.repairfaq.org/sam/laserfaq.htm
    >
    >Jay
    >
    >
    Original Message
    >From: tad@h... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=q7d2H2c__RH3_O1LaNSh_5dBZRnbZiYuWWDzwe_TgT2F9o7gW-iD1bVeneABG4Nh-l8CZj3G]tad@h...[/url
    >Sent: Friday, October 19, 2001 5:13 AM
    >To: basicstamps@yahoogroups.com
    >Subject: Re: [noparse][[/noparse]basicstamps] laser diode
    >
    >
    >I found my laser on the internet here:
    >http://www.mi-lasers.com/laser_diodes.html its the 60 dollar one.
    > COMMON
    > |
    > |
    > |
    > +
    +
    +
    > | |
    > _|_ ______ |
    > PD /_\ \ \_/ LD
    > | <_____\ |
    > | |
    >
    >This is as close as I can get it if you want to see the gif go to the
    >web page. It shows that it has 3 leads. I want to know what PD and LD
    >means and what voltage it runs at and since I wont be able to get to
    >radio shack every time I need something I need to know what I need
    >before hand
    >
    >Thanks
    >
    >
    >
    >
    >Jay Hanson wrote:
    >
    >>I built the following laser power supply from
    >>http://www.repairfaq.org/sam/laserdps.htm#dpstoc
    >>
    >>And it worked!!!
    >>
    >>
    >> In +
    + Out R1 .25 ohms
    >> Vin o----| LM338 |
    /\/\/----+
    o 0 to 5 A current source
    >> +
    + |
    >> | Adj. +----+
    >> | cw | |
    >> | 1K ^ / _|_,
    >> +
    >\ '/_\ LM385-1.2
    >> / |
    >> | |
    >> +----+
    >> |
    >> +
    +
    >> | I = 0.5 to 1.5 mA sink |
    >> +
    +
    >> _|_
    >> -
    >>
    >>Jay
    >>
    >>
    >>To UNSUBSCRIBE, just send mail to:
    >> basicstamps-unsubscribe@yahoogroups.com
    >>
    >>from the same email address that you subscribed. Text in the Subject and
    >Body of the message will be ignored.
    >
    >>
    >>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >>
    >>
    >
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and
    >Body of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and Body
    of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >



    [noparse][[/noparse]Non-text portions of this message have been removed]
Sign In or Register to comment.