How to use a Bresser Digital Nightvision?

[saab96]

I have a Bresser digital nightvision 5*50. I am having difficulty with it. Outside, in various lights and distances, all I get is a bright white screen. Has anyone any experience or can suggest a way to make it work?

 

[maxi77]

Assuming it is a light amplifying night vision system using it in anything but darkness will over load the display giving a white screen and possibly damaging the system

 

[VicS]

I have a Bresser digital nightvision 5*50. I am having difficulty with it. Outside, in various lights and distances, all I get is a bright white screen. Has anyone any experience or can suggest a way to make it work?

RTM? .... http://www.lidl-service.com/static/8426790/53539_DA_HU_EN_SL.pdf

 

[alant]

RTM? .... http://www.lidl-service.com/static/8426790/53539_DA_HU_EN_SL.pdf

When did Lidl sell those & how much?

 

[savageseadog]

The clue is in the "Night" part of Nightvision, not to be used with any kind of direct lighting. It will work in very low light or with the assistance of infra red illumination which is built in. They aren't very good, though I'm fairly sure it will be a 1st generation, single stage imager with curved optics and image and not very sensitive. Fibre optically coupled 2nd or third generation are far better bbut far more expensive.

 

[VicS]

When did Lidl sell those & how much?

£99 four years ago but I am sure I have seen them much more recently. ... Dont you get Lidl's email newsletter? https://ssl.lidl.co.uk/en/1281.htm?ar=12

 

[Minchsailor]

The clue is in the "Night" part of Nightvision, not to be used with any kind of direct lighting. It will work in very low light or with the assistance of infra red illumination which is built in. They aren't very good, though I'm fairly sure it will be a 1st generation, single stage imager with curved optics and image and not very sensitive. Fibre optically coupled 2nd or third generation are far better bbut far more expensive.

Way back in the 1970s, as a very young physicist, I was part of a group researching/developing the 3rd? generation devices using micro-channel plates for the electron multiplication (my task, amongst others, was optimising the photo-cathode). All very hush-hush at the time. One of the problems we had was testing them in the field. In the south of England we just could not find a bit of countryside that was far enough away from the waste light - street lights or town glow - to test them at their limits.

 

[jwilson]

The clue is in the "Night" part of Nightvision, not to be used with any kind of direct lighting. It will work in very low light or with the assistance of infra red illumination which is built in. They aren't very good, though I'm fairly sure it will be a 1st generation, single stage imager with curved optics and image and not very sensitive. Fibre optically coupled 2nd or third generation are far better bbut far more expensive.

I think it is essentially a mini low-light CCTV camera and LCD screen: using in daylight should not be a problem - probably not nearly as good in very low light as a "real" tube-type image intensifier though but much less to go wrong.

 

[saab96]

Thanks everyone. I tried it in a darkened room. Great. Then at sea in nothing but starlight and phosphoresence. Bad. All I got was white screen. So hardly overloaded by unusually strong background light. More likely just a generation too soon. Ach weel. £99 was a lot less than I might have paid.

 

[actionoptics]

Thanks everyone. I tried it in a darkened room. Great. Then at sea in nothing but starlight and phosphoresence. Bad. All I got was white screen. So hardly overloaded by unusually strong background light. More likely just a generation too soon. Ach weel. £99 was a lot less than I might have paid.

Didn't come with a front lens cap with a tiny hole in the centre? This allows it to be tested in daylight. Maybe try it on your boat with the lens cap on or make another cap with a bigger hole .