Old 04-02-2017, 06:53 PM #1
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Question Required wattage?

Hi! I am planning to buy a laser pointer. I want to use it to destroy camera lens on mobile phones, about 5 mpix camera.

Anyone have experience what wattage reqired to destroy mobile phone's camera lens or make it not functional?

Appreciate for the help and information



Last edited by bz8687; 04-02-2017 at 06:53 PM.
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Old 04-02-2017, 07:37 PM #2
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Default Re: Required wattage?

Sorry, but is that just trolling attempt or is there any rational reason why to destroy some camera?
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Old 04-02-2017, 08:29 PM #3
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Default Re: Required wattage?

it's just for my own experiments
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Old 04-02-2017, 08:31 PM #4
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Default Re: Required wattage?

Quote:
Originally Posted by bz8687 View Post
it's just for my own experiments
On your own phone, or when someone is trying to video you?
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Old 04-02-2017, 11:07 PM #5
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Default Re: Required wattage?

Quote:
Originally Posted by bz8687 View Post
Hi! I am planning to buy a laser pointer. I want to use it to destroy camera lens on mobile phones, about 5 mpix camera.

Anyone have experience what wattage reqired to destroy mobile phone's camera lens or make it not functional?

Appreciate for the help and information
Anyone have experience what wattage reqired to destroy mobile phone's camera lens or make it not functional?

Appreciate for the help and information [/QUOTE]

Not a bright idea.
Use a piece of black electrical tape to cover the lens or take a knife or screwdriver or a piece of sandpaper and scratchup/cloud/ruin the lens if you have to for reasonsunknown--either is a smarter way and more easily done than with a laser.

Quote:
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Sorry, but is that just trolling attempt or is there any rational reason why to destroy some camera?
exactly

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Old 04-03-2017, 08:56 AM #6
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Default Re: Required wattage?

Thanks for reply guys!

Planning to buy a pointer, but not sure what wattage (0.5-2W?) needed to make the lens unfunctional without any visible damages on devices.

Thanks in advance!
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Old 04-03-2017, 08:58 AM #7
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Default Re: Required wattage?

I'd stay away from 405 nm or IR lasers to do that, there is probably a filter to attenuate those wavelengths.
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Old 04-03-2017, 09:27 AM #8
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Default Re: Required wattage?

Quote:
Originally Posted by bz8687 View Post
Thanks for reply guys!

Planning to buy a pointer, but not sure what wattage (0.5-2W?) needed to make the lens unfunctional without any visible damages on devices.

Thanks in advance!
Better to use black tape for that, or dismount the camera or sensor from the device or use sand paper, as mentioned above. The best solution IMO.

These lasers are dangerous enough to damage your (or anybody elses) eyes when used without proper eye protection. And what's more - you will spend much more money on such a solution. You do not really need laser to just disable it.

Finally you will hardly damage lens as they are designed to pass the light, more likely you will damage the sensor, to be accurate. But even if you do it it might not be completely destroyed and not speaking this si highly dangerous stuff to do without proper laser safety experience.
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Old 04-03-2017, 10:35 AM #9
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Default Re: Required wattage?

Hi might want to kill his camera as a warranty issue for some reason or another
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Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

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Old 04-03-2017, 10:41 AM #10
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Default Re: Required wattage?

I hope this is just a trolling attempt, as I'm with GSS on this one. I get the feeling that he will point it at other peoples cameras rather than his own.
Either way:
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Old 04-03-2017, 10:44 AM #11
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Default Re: Required wattage?

I agree with Oliver. Seems to me as a real reason of OP as well. Oliver, I wanted to rep you not only because of this post, but still the spreading limit. I really need to find posts I like from people not repped recently.

For OP - for remote camera destroy - it is not only illegal, but highly ineffective way, as it is hard to get sufficient exposure to destroy sensor completely. In real situation you hardly point to small lens of camera with enough energy density for enough time and the camera sensor will be damaged only in a few pixels if any damage will occur, but still working. And you might to go to prison or end with injury from the punch. Just in case. Do not do it and if someone is disturbing your privacy film them and report to police. No other advice could be given if this case apply.
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Old 04-03-2017, 10:55 AM #12
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Default Re: Required wattage?

Thanks again Radim.
It would help if we knew a little bit more about your intentions OP, as you are being a bit vague by saying
Quote:
Originally Posted by bz8687
it's just for my own experiments
And what do you mean by
Quote:
Originally Posted by bz8687
make the lens unfunctional without any visible damages on devices.
????
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Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
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Bang good is a good source for many electrical items and are often cheap and reliable.
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Old 04-03-2017, 11:15 AM #13
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Default Re: Required wattage?

Heh, I still smell that salmon here too. Could be he wants to kill a camera in is phone because something else is wrong with it a warranty doesn't cover, or, he wants to shoot out a security camera, or he is paranoid someone would hack into his phone and might see him, or, his phone is not allowed in a secure area unless the camera is permanently disable, I've seen that one.... or, a lot of reasons but I see a big fat salmon. Lately, a guy has been riding the edge on his posts, just enough to appear trollish, but not over the edge, all of us have been happy to leave him alone and let him troll, then he had to go nuts today and start using swear words and being more obvious, he couldn't take the pressure of not ruffling anyones feathers, so that's why I'm smelling salmon in the forum now, possibly from sincere posters such as this man, I don't know...

However, if I were to want to kill a camera with a laser, I'd first try it with a fairly low power 532nm laser pointer, one of those cheap 10 dollar ones from China and see if it has enough power to do so, if not... get a more powerful one and try it, but might damage the plastic inside the lens before he kills the sensor, and only a few pixels at a time, as suggested above. I don't know, but I have seen photographs of a few dead pixels in the last which were caused by a laser pointer, so not sure how easy it will be to kill a camera sensor without leaving evidence.
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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3
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Old 04-03-2017, 11:20 AM #14
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Default Re: Required wattage?

I too was thinking about CCTV cameras being a possible option. I still think troll, but I would hesitate giving out any suggestions/ideas to him as LPF does not want to be involved with anything criminal.
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Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta






Useful Links:
Wavelength to RGB Converter
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Old 04-03-2017, 11:28 AM #15
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Default Re: Required wattage?

Well, it is hard to speculate. If OP will not post more description of for what experiment he needs it, it is hard to give any advice by assumption. Just in general: Stay safe and do not attept to do anything illegal or potentially dangerous. And yes even laser pointer (under 5 mW), might cause damage - depends on the other conditions. There were even reported camera damages from lasershows, where it was eye safe, but not camera safe - cameras might have more sensitive treshold for damage, no blink reflex or fast tiny movements, focus on finer point and even the objective lens is bigger than eye pupil (migt not be case of mobile phone camera).
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Old 04-03-2017, 11:32 AM #16
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Default Re: Required wattage?

Killing a CCTV camera is going to be a lot harder because of divergence, if at much distance, the power density might be too low due to spreading. I wouldn't think a laser would reliably kill a camera in a phone or anything without a lot of testing, probably a lot of repetitive shots too. Not a random way to kill a camera unless you pump so much power into the sensor it burns it which under a magnifying glass could be discovered.

Edit: I wonder, could it be possible to find more information inside the forum on this, if searching....

http://laserpointerforums.com/f44/wa...a-29752-3.html

I was going to say, a SSY-1 YAG would do a job on a camera, even at a distance, vaporise the chip, but Hemlock Mike commented about doing just that in the above thread.
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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 04-03-2017 at 11:45 AM.
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