# Wireless Inspection Camera

A

Jan 1, 1970
0
Hi Guys,
This inspection camera is on sale for $89. The downside is it only has a 3 ft camera cable. (oh, and it's from harbor freight) I'm wondering if the connection between the camera and the control handle is just power and video out. Would it be possible to possible to lengthen the cable. Anybody have one? http://www.harborfreight.com/wirele...ive_items&utm_medium=email&utm_campaign=3410C It has a good review; Excellent Product Review by Tim Leech Very Good quality for the price. We use it for home colonoscopies and couldn't be more pleased. Bwahahahahhahahah MikeK P #### PeterD Jan 1, 1970 0 Hi Guys, This inspection camera is on sale for$89. The downside is it only has a 3
ft camera cable.
(oh, and it's from harbor freight) I'm wondering if the connection between
the camera and the
control handle is just power and video out. Would it be possible to possible
to lengthen the cable.
Anybody have one?

http://www.harborfreight.com/wirele...ive_items&utm_medium=email&utm_campaign=3410C

It has a good review;
Excellent Product
Review by Tim Leech

Very Good quality for the price.
We use it for home colonoscopies and couldn't be more pleased.

Bwahahahahhahahah

MikeK

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

A

#### amdx

Jan 1, 1970
0
PeterD said:
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

F

Jan 1, 1970
0
amdx a écrit :
Hi Guys,
This inspection camera is on sale for $89. The downside is it only has a 3 ft camera cable. (oh, and it's from harbor freight) I'm wondering if the connection between the camera and the control handle is just power and video out. Would it be possible to possible to lengthen the cable. Anybody have one? http://www.harborfreight.com/wirele...ive_items&utm_medium=email&utm_campaign=3410C It has a good review; Excellent Product Review by Tim Leech Very Good quality for the price. We use it for home colonoscopies and couldn't be more pleased. You mean that's the reason you want a more than 3 feet cable? Bwahahahahhahahah Yep, bwahahahahhahahah A #### amdx Jan 1, 1970 0 Fred Bartoli said: 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 J #### JosephKK Jan 1, 1970 0 Consider the likelyhood that the cable is fiberoptic, and the camera is in the handle. 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? J #### JosephKK Jan 1, 1970 0 Never heard anyone refer to their bum as a drain pipe! Don't get around much? Or just stay in prudish circles? R #### Rich Webb Jan 1, 1970 0 Very unlikely to get a three foot coherent fiber bundle for$89 even in
China.

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?

W

#### Winston

Jan 1, 1970
0
Rich, you need to think that one through a bit more to see why it won't
work..

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

--Winston

R

#### Rich Webb

Jan 1, 1970
0
Flip the camera logic to present a 'mirror image', wot?

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

J

#### JosephKK

Jan 1, 1970
0
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.

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

Kerf is almost irrelavant unless you intentionally tangle the fiber.
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?

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.

S

#### Sjouke Burry

Jan 1, 1970
0
Paul said:
No doubt, that's how the Chinese do it. ;-)
That's how it was done for the last 50 years.

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