Posted: 3/8/2005 7:35:01 AM EDT
|
OK, I realize there are some types of red dot sights that have NV settings that will allow you to still see the lit reticle while wearing NV goggles. However, I was wondering if there is a way to take a scope with a lighted reticle that does NOT have this ultra low setting and modify it so that it will allow you to use your NV goggles while using the scope. I know this sounds rather "cheap", but couldn't you use some sort of filter material over the ocular lens to seriously reduce the amount of light coming through the ocular from the lighted reticle? Perhaps an IR filter, or just a really dark piece of polarized material like that used in sunglasses? |
|
When you say NV, are you thinking of the photomultiplier tubes or IR imagery? If your referring to the image intensifiers, read on. If you are thinking of IR imagery, that could be a whole other ball of wax. The IR devices require special optics that transmit in the IR spectrum. Most normal optics are not compatible - the lenses are opaque in the IR wavelengths. Back to image intensification: why bother with an illuminated reticle? The reticle will contrast well against the bright NV image. If this is not okay, you should first try the lowest setting on the the illuminated reticle. This might work. If not, you will need a special filter to selectively reduce transmission of the wavelength used to illuminate the reticle. You will need to know the spectrum of the reticle. Call the manufacturer or measure it. Get an optics catalog (for example, Oriel). Look for a notch filter of the correct center wavelength. These come in standard (round) sizes. You will need a mount, to hold the lens securely and position it over the rear of the ocular. Conceivably, you could adapt a scope cap or one of the Surefire filter mounts. In the end, unless you really do a good job getting the mount done well (read that as $), it's going to look like crap. You also have to worry about it being robust. If you really, really need NV for your scope, get a NV compatible scope. |