# Passive night vision goggles?

**URL:** <https://boards.straightdope.com/t/passive-night-vision-goggles/159208>\
**Category:** Factual Questions\
**Created:** [March 5, 2003, 7:15am UTC](https://boards.straightdope.com/t/passive-night-vision-goggles/159208 "2003-03-05T07:15:37Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![djbdjb](https://avatars.discourse-cdn.com/v4/letter/d/a87d85/32.png) [@djbdjb](https://boards.straightdope.com/u/djbdjb)\
**Post date:** [March 10, 2003, 7:32pm UTC](https://boards.straightdope.com/t/passive-night-vision-goggles/159208/21 "2003-03-10T19:32:53Z")

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this [item](http://www.scientificsonline.com/ec/Products/Display.cfm?CategoryID=192657) is interesting. How does it apply to the discussion?

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**Author:** ![ChalkPit](https://avatars.discourse-cdn.com/v4/letter/c/a88e4f/32.png) [@ChalkPit](https://boards.straightdope.com/u/ChalkPit)\
**Post date:** [March 10, 2003, 8:34pm UTC](https://boards.straightdope.com/t/passive-night-vision-goggles/159208/22 "2003-03-10T20:34:54Z")

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Says it only works ‘in contact’. Can’t see how it could be used for our binocs here.

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**Author:** ![astro](https://avatars.discourse-cdn.com/v4/letter/a/9dc877/32.png) [@astro](https://boards.straightdope.com/u/astro)\
**Post date:** [March 10, 2003, 8:48pm UTC](https://boards.straightdope.com/t/passive-night-vision-goggles/159208/23 "2003-03-10T20:48:42Z")

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So who’s right, Chronos or scr4?

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**Author:** ![ZenBeam](https://avatars.discourse-cdn.com/v4/letter/z/3ab097/32.png) [@ZenBeam](https://boards.straightdope.com/u/ZenBeam)\
**Post date:** [March 10, 2003, 10:34pm UTC](https://boards.straightdope.com/t/passive-night-vision-goggles/159208/24 "2003-03-10T22:34:16Z")

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> [@](#):
>
> this item is interesting. How does it apply to the discussion?

I don’t think it does, really. It’s a bundle of fiber optic lines. Each fiber is analogous to a pixel on your monitor, they are just spaced farther apart at the one end.

> [@](#):
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> So who’s right, Chronos or scr4?

**scr4**.

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