monocular blinds my eye, I am worried about retnia damage

[edubz]

After using a thermal monocular I noticed I was blind in my eye for a little bit and I didnt like it. I tried using the phone app over wifi but the screen was very small and it didnt look good.

although my seek compact pro wasnt that great of hardware, the seek software for android was nice, I like how it took up the entire screen of the phone.


are all monocular software for the apps the same where the image is small and doesnt fill the entire screen? its pretty useless over wifi if it does not fill the scene

[bob91343]

Your temporary blindness is harmless I think.  As for a larger image, rather than using a cellphone try a desktop PC.

[cdev]

Take any antioxidants you have lying around. in situations like that they may be protective. Even Vitamin C might help. N-acetylcysteine may be particularly good.

[Fraser]

The loss of night vision is perfectly normal when the human eye is exposed to bright light. The eye does not suffer damage as the intensity of the LCD backlight is well below any potentail harm levels. You can suffer eye strain/fatigue, but that is often due to the less than great optics used in some viewfinder assemblies.

There are two common countermeasures to the issue of night vision loss due to EVF illumination....

Operate the electronic viewfinder in a low brightness mode, if such is available. Reduce the brightness level as much as possible whilst still being able to see the image detail.

Operate the thermal camera in a Red and Black monochrome mode with low intensity red instead of white light. This mode is available on some professional thermal imaging scopes and maritime thermal imagers. Red light has less of an effect on the users night vision.

If your particular thermal camera/scope offers neither option, you could try buying some Red filter 'Gels' that are used on theatre stage lighting. They are a thin plastic that comes in various colours. You could use one or more layers of the red gel sheet placed in the electronic viewfinders optical path at a convenient point.

Remember... When operating in darkness, it is best to operate a thermal scope at its lowest backlight brightness that still provides a useable image.

The military surveillance scopes also include a rubber iris in the EVF eye cup that only opens when the scope is pressed against the users face. This is nothing to do with the users night vision management...... it is to ensure that the users face is fully coupled to the eye cup, so avoiding light leakage that makes them an easy target for a sniper.

I attach some example images from the FLIR HM307 showing the black hot, white hot and Marine Red night palette.

Fraser

[cdev]

My Kinect has an IR structured light LED and although its infrared and invisible it still makes my eyes feel a bit funny. Its used to help capture the 3D geometry of anything thats right in front of it (Rgb-d) Basically it can show the room around me and turn my huge mess into 3D in real time. Which is just terrifying.

[svgurus]

Either you didnt read user manual to find screen brightness adjustment or Hik/Agm was too cheap to add it) Pulsar has sepia color palette, Iray, Flir scion and Hik dont, Guide either afaik. Also it has brightness adjustment, ~10-100%
Wifi capture always has 1-2 sec lag, i rarely use it. But it is full screen on Pulsar, attached it too

[Bud]

That is a cool (no pun intended) picture with the baloon