Wireless Inspection Camera

Consider the likelyhood that the cable is fiberoptic, and the camera is in the handle.

I have, That's why I posted the question. Although I think the camera is in the cable, someone may have one and would know for sure. Thanks, MikeK

Very unlikely to get a three foot coherent fiber bundle for $89 even in China.

The camera is in the head.

tm

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amdx a écrit :

You mean that's the reason you want a more than 3 feet cable?

Yep, bwahahahahhahahah

Well with the cost medical care these days! $89 and you have a home business. Actually I have a drain pipe that seems to get clogged quite regularly, I'd like to see why, probably not worth $89 to me though. MikeK

How about using an old fish tape, and a blasting cap? ;-)

Never heard anyone refer to their bum as a drain pipe!

I really doubt it, fiberoptic image cable is really expensive, and low price TO-99 cameras have been around for many years. Might use FO to ship the light but why versus using LED in the optical head?

Don't get around much? Or just stay in prudish circles?

Well... consider this thought experiment. Wrap a jillion turns of fiber around a bicycle wheel rim. Don't worry about how they lay. When the bundle is the right thickness, cast about an inch of the circumference in epoxy. When the epoxy sets, make the bicycle tire rim disappear (magic happens), and cut the cast section in half perpendicular to the plane of the bundle.

If our magical cut is of zero kerf (width) and is optically flat then we really don't care what happens to the fibers between the ends; the incident and emitted images should match from end to end.

Lots of handwaving there, admittedly, but to a first-order approximation it seems do-able (and cheap enough) even with a non-zero kerf and the wastage from polishing the ends.

Disclaimer: Not my field, at all. But if I ever get hold of enough surplus fiber, might be fun to try. Got plenty of old bicycle wheels. Effects of the refractive index of the epoxy vs the fiber?

Rich, you need to think that one through a bit more to see why it won't work..

tm

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Flip the camera logic to present a 'mirror image', wot?

--Winston

Indeed. Even absent that, working with a flipped image is not unusual in microscopes and telescopes.

No. Without serious lay control you only get an approximate match; that may well be good enough.

Kerf is almost irrelavant unless you intentionally tangle the fiber.

Irrelavant, total internal refelection; on the other hand most fiber is optimised for IR wavelengths, visible light performance may not be useful. Try buying a copy of TIA-498 set, NOT cheap but you may learn stuff.

No doubt, that's how the Chinese do it. ;-)

That's how it was done for the last 50 years.