greg__
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NoIR camera and 940nm illuminator

Mon May 16, 2016 6:20 pm

Hello,

I would like to buy the new NoIR camera and a 940nm illuminator so it will completely invisible (no red glow).
I did my researches and found that the range can be reduced with 940nm and also that the image could be blurry.


What about it ? The range ? The blurriness ?
Does anyone has tested it ?


Thx

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Mettauk
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Re: NoIR camera and 940nm illuminator

Mon May 16, 2016 9:35 pm

The old V1 board works at 940nm but brighter (more) 940nm illumination is required to record general video/stills with movement. but it works. The V2.1 is apparently more sensitive so with enough lighting it should work as well or better BUT it depends on what you are trying to capture!
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Gavinmc42
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 1:54 am

Image probably blurry because the lens would need to be refocused for 940nm.

Wonder if an IR filter over the 850-880 LEDs would block the red glow?
I decided to go for 850nm because efficiency is much higher.
Not sure how to hide the orange/red dots?
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greg__
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 12:02 pm

I want to record video, so maybe should I buy the v2. I do not know for the filter, but the v1 which has integrated illuminators, are they 840 or..?

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RaTTuS
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 12:18 pm

greg__ wrote:I want to record video, so maybe should I buy the v2. I do not know for the filter, but the v1 which has integrated illuminators, are they 840 or..?
the V1 does not have integrated illuminatiors
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 12:29 pm

RaTTuS wrote:
greg__ wrote:I want to record video, so maybe should I buy the v2. I do not know for the filter, but the v1 which has integrated illuminators, are they 840 or..?
the V1 does not have integrated illuminatiors
No, but the Waveshare clone does.
However there generally isn't enough power available from the Pi to power both the sensor and the IR LEDs (they all just hang off the 3.3V line), so not a great solution.
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Mettauk
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 12:53 pm

greg__ wrote:I want to record video, so maybe should I buy the v2. I do not know for the filter, but the v1 which has integrated illuminators, are they 840 or..?
The clone V1 you referred to (on eBay) etc have 840 bolted to the side of the camera module and only work at close range.. Max 1.2m as the power for the LEDs is drawn from the camera power supply!
Far better to have seperatly powered illumination or at least not from camera supply!
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greg__
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 1:30 pm

Indeed it does not come from raspberry, my bad. :)
Which illuminator do you advise me ? (in 940nm so it is completely invisible)

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jbeale
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 1:58 pm

Here's a quick demonstration of the focus difference using an older sensor (but with M12 lens) where I adjusted the focus for 940 nm. You can see when I switch to the normal light how the focus becomes blurry.
https://www.youtube.com/watch?v=ASC_6Yce06k

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RaTTuS
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 2:11 pm

How To ask Questions :- http://www.catb.org/esr/faqs/smart-questions.html
WARNING - some parts of this post may be erroneous YMMV

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greg__
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 5:05 pm

jbeale thx for the video

edit: i need to find an alim 12V or a 5V illuminator
Last edited by greg__ on Tue May 17, 2016 6:32 pm, edited 1 time in total.

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jbeale
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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 5:22 pm

Most of the IR illuminators in outdoor housings are designed for 12V input, that is the common standard. There maybe some 5V models intended for indoor use (shorter range)

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Re: NoIR camera and 940nm illuminator

Tue May 17, 2016 5:44 pm

ok but I want ot use it outdoor haha

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Gavinmc42
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Re: NoIR camera and 940nm illuminator

Wed May 18, 2016 11:45 am

Can sometimes get halogen outdoor floodlights on special $5-10.
Got two that way, room enough for a Pi and a bunch of 1Amp IR LEDS.
I use this to inject power over the Ethernet cable
http://www.freetronics.com.au/collectio ... zxPlfnAPtQ

Use this to split power and Ethernet out at the Pi end
http://www.jaycar.com.au/IT-Products/Ne ... k/p/YN8029

The 12-24V goes to a 12v USB cigarette plug $2 on special, some can handle up to 24Vdc.
Grab a RJ45 crimper, lots of plugs and a roll of cable, next thing your house and garden is wired up.

I use one of these to driver the LEDS, dial up the power I need.
http://www.jaycar.com.au/Active-Compone ... e/p/AA0595

Not sure who makes 940nm 1W+leds, alternative is lots and lots of 5mm 940nm leds.
Checked Osram, they have some.
http://www.osram-os.com/osram_os/en/pro ... /index.jsp

Still trying to figure out how to strobe/GPIO control my 850nm leds, might have to make up a mosfet pcb on vero, work in progress.
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greg__
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Re: NoIR camera and 940nm illuminator

Mon May 23, 2016 1:12 pm

Thx for the info !

Do you know if there will be a v2 waveshare noir camera 8mp with the focus and illuminator ? (like for the v1)

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jbeale
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Re: NoIR camera and 940nm illuminator

Mon May 23, 2016 4:42 pm

greg__ wrote:Do you know if there will be a v2 waveshare noir camera 8mp with the focus and illuminator ? (like for the v1)
There were many 3rd-party versions of the old v1 5MP OV5647 RPi-compatible camera board with various lens mounts and various form factors. If it can be done, I'm sure it eventually will be done. It is possible there is some reason camera boards based on Sony sensors are harder to clone than OmniVision's but all I can say is to date, I have not seen any aftermarket 8MP RPi cameras available. Maybe too soon; I think it was some months at least before the v1 clones started appearing.

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Gavinmc42
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Re: NoIR camera and 940nm illuminator

Tue May 24, 2016 1:54 am

Someone is working on a clone 8Mp, reports of a cypher chip making it hard for them :roll:
For Noir, night vision/security, a monochrome large pixel camera 1-3Mp would probably be better, but is there a mono CSI chip?
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jbeale
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Re: NoIR camera and 940nm illuminator

Wed May 25, 2016 7:58 pm

Gavinmc42 wrote:For Noir, night vision/security, a monochrome large pixel camera 1-3Mp would probably be better, but is there a mono CSI chip?
Looking through the offerings at http://www.e-consystems.com/cameramodul ... CamModules I see MIPI-CSI available only at 4 Mpixels and up. MIPI is a mobile-phone industry standard and that market cares about megapixels, not night vision or mono. There are larger pixel sensors, including monochrome like the Aptina AR0130CS, or AR0134 (with global shutter), but with a different interface.

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Gavinmc42
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Re: NoIR camera and 940nm illuminator

Thu May 26, 2016 3:23 am

Seems to be a Sony Starvis chip with MiPi IMX290,IMX291, only 2Mp.
interesting stuff here
http://image-sensors-world.blogspot.com.au/
x27 camera looks fantastic, colour at night.
http://image-sensors-world.blogspot.com ... ision.html
Also Sony stopping some sensor production
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