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How to make a laser pointer
- albertw
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- IFAS Secretary
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17 years 4 months ago #49735
by albertw
Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/
How to make a laser pointer was created by albertw
Albert White MSc FRAS
Chairperson, International Dark Sky Association - Irish Section
www.darksky.ie/
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- dave_lillis
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- Super Giant
17 years 4 months ago #49737
by dave_lillis
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
Replied by dave_lillis on topic Re: How to make a laser pointer
now there's one for a rainy day ! :twisted:
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
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- Frank Ryan
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- Super Giant
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17 years 4 months ago #49744
by Frank Ryan
My Astrophotography
Shannonside Astronomy Club __________________________________________
Meade ETX-125PE, Bresser 10 x 50 Binos & Me Peepers
Replied by Frank Ryan on topic Re: How to make a laser pointer
I'm juuusst gonnna forget I saw that.
Knowing my 'Mr Bean' luck.
Knowing my 'Mr Bean' luck.
My Astrophotography
Shannonside Astronomy Club __________________________________________
Meade ETX-125PE, Bresser 10 x 50 Binos & Me Peepers
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- phoenix
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- Red Giant
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17 years 4 months ago #49746
by phoenix
Kieran
16" ODK (incoming), Mesu Mount 200, APM TMB 80mm, SXV H16, SXV H9
J16 An Carraig Observatory
ancarraigobservatory.co.uk/
Replied by phoenix on topic Re: How to make a laser pointer
I was on a demolition job today and 5 computers were being dumped. I had thought about stripping out the drive motors for a dob platform but maybe I should have thought more about evil carnage :twisted:
Kieran
16" ODK (incoming), Mesu Mount 200, APM TMB 80mm, SXV H16, SXV H9
J16 An Carraig Observatory
ancarraigobservatory.co.uk/
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- pmgisme
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- Red Giant
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17 years 4 months ago #49752
by pmgisme
Replied by pmgisme on topic Re: How to make a laser pointer
If ye need the €5 to buy this one I'll lend it to you:
www.instapark.com/category/laser-products/ll-2.php
Peter.
www.instapark.com/category/laser-products/ll-2.php
Peter.
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- johnomahony
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17 years 4 months ago #49753
by johnomahony
The Lord giveth, the Revenue taketh away. (John 1:16)
www.flickr.com/photos/7703127@N07/
Replied by johnomahony on topic Re: How to make a laser pointer
I am amazed at the lasers that can be bought on Ebay for around €25 with power outputs up to 240mW. You can get them through UK registered companies but they are shipped direct from Hong Kong. They are illegal in the UK over a certain class (must be less than 5mW I think).
Anything approaching this level of power is extremely dangerous and will cause permanent eye damage of someone is exposed to one-they should be banned.
I remember using green argon ion lasers in the past with an output of about 50-100mW. It was a requirement that you had your retinas photographed by an eye specialist both before and after usage and protective goggles were mandatory during use. Now you can get laser pointers up to 500mW which can start fires and wave them around in the open - madness.
Anything approaching this level of power is extremely dangerous and will cause permanent eye damage of someone is exposed to one-they should be banned.
I remember using green argon ion lasers in the past with an output of about 50-100mW. It was a requirement that you had your retinas photographed by an eye specialist both before and after usage and protective goggles were mandatory during use. Now you can get laser pointers up to 500mW which can start fires and wave them around in the open - madness.
The Lord giveth, the Revenue taketh away. (John 1:16)
www.flickr.com/photos/7703127@N07/
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