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Damaging a camera

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c_dug
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PostPosted: 17:05 - 16 Oct 2012    Post subject: Damaging a camera Reply with quote

Is it possible to permanently damage the picture capture part of a camera using a strong light or laser?
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Islander
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PostPosted: 17:07 - 16 Oct 2012    Post subject: Re: Damaging a camera Reply with quote

c_dug wrote:
Is it possible to permanently damage the picture capture part of a camera using a strong light or laser?


If the laser is powerful enough, certainly. You're looking at higher powers than the average pointer though.
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c_dug
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PostPosted: 17:09 - 16 Oct 2012    Post subject: Reply with quote

Would it need to be done while the camera is taking a picture or any time?
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c_dug
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PostPosted: 17:10 - 16 Oct 2012    Post subject: Reply with quote

Just for clarification I'm not planning on breaking anybodies personal camera.
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angryjonny
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PostPosted: 17:14 - 16 Oct 2012    Post subject: Reply with quote

Depends on the camera. A regular one with a shutter, yes the shutter would need to be open and you'd basically overexpose or burn the film.

It may be possible to ruin a digital camera at any time as I don't believe there is a shutter on most.

Assuming you're talking about a Gatso, I believe most take film and will have a shutter of some sort. Some non Gatso "safety" cameras are digital - particularly the taller "anti-tamper" ones that double as red-light cameras.
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oldpink
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PostPosted: 17:30 - 16 Oct 2012    Post subject: Reply with quote

long exposure to a very high powered light or laser (150+ mW) would break a digital camera
but a standard film camera it would do no damage as it would only damage the film if there was any in it

though full open exposure to the sun on a bright day would most likely melt the internals of any camera
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Last edited by oldpink on 17:36 - 16 Oct 2012; edited 2 times in total
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Islander
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PostPosted: 17:31 - 16 Oct 2012    Post subject: Reply with quote

I think most digital cameras have a basic shutter so they'd need to be actually taking a picture although with the laser powers you'd need you may well damage the shutter curtain itself.

Higher power lasers aren't cheap either and you really do have to be careful with them.

Re: GATSOs - this is interesting

https://www.bbc.co.uk/news/uk-england-19898072
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oldpink
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PostPosted: 17:35 - 16 Oct 2012    Post subject: Reply with quote

I have a couple of very high powered lasers (460mW)
they have a master control key to arm them as they can be very dangerous, there used in concert halls for Efx
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Islander
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PostPosted: 17:39 - 16 Oct 2012    Post subject: Reply with quote

oldpink wrote:
I have a couple of very high powered lasers (460mW)
they have a master control key to arm them as they can be very dangerous, there used in concert halls for Efx


I had a passing urge to buy a 1W jobby to play experiment with a year or so ago. Mr. Green

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oldpink
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PostPosted: 17:44 - 16 Oct 2012    Post subject: Reply with quote

Islander wrote:
oldpink wrote:
I have a couple of very high powered lasers (460mW)
they have a master control key to arm them as they can be very dangerous, there used in concert halls for Efx


I had a passing urge to buy a 1W jobby to play experiment with a year or so ago. Mr. Green

It may return...


the show lasers were best part of £500 but they also have DMX controllers its a 4 part unit comprising of
1 x 60mW Green 532nM, 1 x 200mW Blue 450nM, 2 x 100mW Red 650nM
pretty impressive when you fire it through a load of smoke Mr. Green
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Spudly
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PostPosted: 18:47 - 16 Oct 2012    Post subject: Reply with quote

If you use an optical infra red filter, it's possible to make a terrifying laser from a dvd players laser.

Leave the IR filter off and you are looking at something which will cook bacon, not to mention skin, fingernails, eyeballs and clothing.

Better to use the filter.
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oldpink
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PostPosted: 21:43 - 16 Oct 2012    Post subject: Reply with quote

SWID wrote:
inksmithy wrote:
If you use an optical infra red filter, it's possible to make a terrifying laser from a dvd players laser.

Leave the IR filter off and you are looking at something which will cook bacon, not to mention skin, fingernails, eyeballs and clothing.

Better to use the filter.


Utter, utter bollox Smile


acctually most 24 speed upwards or most post 08 DVD players like the ones in PC's have a single red laser diode
with about 400mW continuous power output which WILL do damage to your eye's if you are not careful
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Spudly
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PostPosted: 21:43 - 16 Oct 2012    Post subject: Reply with quote

SWID wrote:
inksmithy wrote:
If you use an optical infra red filter, it's possible to make a terrifying laser from a dvd players laser.

Leave the IR filter off and you are looking at something which will cook bacon, not to mention skin, fingernails, eyeballs and clothing.

Better to use the filter.


Utter, utter bollox Smile


https://hackaday.com/2010/09/30/build-a-cutting-laser-from-an-old-pc/

https://www.instructables.com/id/Laser-Flashlight-Hack!!/

https://www.laserist.org/DVD-laser-caution.htm

There's my references, where are yours Captain Spellworthy?
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Spudly
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PostPosted: 21:48 - 16 Oct 2012    Post subject: Reply with quote

I used to use one of these when finding my wsy around the sky with my telescope/;

https://www.gy3.co.uk/laser-pointers.html

For all sorts of reasons, the green one is the most visible.
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Islander
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PostPosted: 21:52 - 16 Oct 2012    Post subject: Reply with quote

A blu ray laser's maximum output is around 250mW. That'll heat skin given enough time but it's hardly James Bond territory.

Lasers are single wavelength devices that emit their radiation coherently (i.e. in phase). Putting an IR filter on a laser that's not an IR device is going to make bugger all difference. Putting on on a laser that is an IR device is going to either attenuate it or do nothing depending on whether the wavelength of the filter matches that of the laser and whether the filter is a notch or bandpass type.
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Spudly
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PostPosted: 22:01 - 16 Oct 2012    Post subject: Reply with quote

https://www.wickedlasers.com/laser-tech/WhyisIRbad.html

https://en.wikipedia.org/wiki/Laser_pointer#Infrared_hazards_of_DPSS_laser_pointers
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oldpink
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PostPosted: 22:06 - 16 Oct 2012    Post subject: Reply with quote

1–5 mW Laser pointers
5 mW CD-ROM drive
5–10 mW DVD player or DVD-ROM drive
100 mW High-speed CD-RW burner
250 mW Consumer 16× DVD-R burner
400 mW DVD 24× dual-layer recording

400mW will burn skin, can blind you or cause permanent damage but the colour and frequency play a part in this as well


Quote:
Class I/1 is inherently safe, usually because the light is contained in an enclosure, for example in CD players.

Class II/2 is safe during normal use; the blink reflex of the eye will prevent damage. Usually up to 1 mW power, for example laser pointers.

Class IIIa/3R lasers are usually up to 5 mW and involve a small risk of eye damage within the time of the blink reflex. Staring into such a beam for several seconds is likely to cause damage to a spot on the retina.

Class IIIb/3B can cause immediate eye damage upon exposure.

Class IV/4 lasers can burn skin, and in some cases, even scattered light can cause eye and/or skin damage. Many industrial and scientific lasers are in this class.

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G
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PostPosted: 22:09 - 16 Oct 2012    Post subject: Reply with quote

I reckon this one will do it Smile:
https://www.wired.com/wiredscience/2008/04/texans-build-wo/
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The Artist
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PostPosted: 22:14 - 16 Oct 2012    Post subject: Reply with quote

Did anyone on here ever get their arctic laser?

https://www.techwarelabs.com/wp-content/gallery/wicked-lasers-spyder-iii-arctic/arctic_series.jpg
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Ariel Badger
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PostPosted: 22:15 - 16 Oct 2012    Post subject: Reply with quote

I have a 30W laser cutting machine that will cut through 20 mm of perspex. It would cut a camera in half so I dare say that will affect its ability to take a decent picture.
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Islander
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PostPosted: 22:17 - 16 Oct 2012    Post subject: Reply with quote

400mW is certainly powerful enough to burn skin or damage eyes - no doubt about that.

I picked the Blu Ray because it's significantly higher than a standard DVD player's laser which was the one being cited as powerful - which they aren't on the scale of things really. Any laser should definitely be kept away from eyes.

For the OP, here's a demo of what a fairly powerful stage laser (1W) can do to a camera's sensor.

https://www.youtube.com/watch?v=EoLR2LzHO-M&feature=plcp

It's worth watching some of his other stuff - he sounds like a lunatic but he very obviously understands what he's doing. Mr. Green
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oldpink
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PostPosted: 22:17 - 16 Oct 2012    Post subject: Reply with quote

Northrop the US defence suppliers are rumoured to have a few off the scale weapon based lasers
but it seems that the technology is moving over to maser (microwave not light)
apparently they are far more powerful if not useless as toys as there is nothing to see
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Spudly
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PostPosted: 22:23 - 16 Oct 2012    Post subject: Reply with quote

Oh I dunno, I reckon exploding eggs with my focused beam of microwaves would never get boring.
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The Artist
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PostPosted: 22:25 - 16 Oct 2012    Post subject: Reply with quote

inksmithy wrote:
Oh I dunno, I reckon exploding eggs with my focused beam of microwaves would never get boring.


Yeh but you don't get cool colours
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