(Michael Black) writes:

Usual Suspect ) writes:
I had a go today but failed , any ideas? A violinist, I know, asked about
such an inspection viewer, small and flexible.

Suggest you cross-post to the wider s.e.* groups. Might get better response
from the engineering population...


No, not cross-post. He shouldn't have posted a non-repair question in
a repair newsgroup.

Before he posts again, he should read Mark Zenier's guide to the hierarchy,
ftp://ftp.eskimo.com/u/m/mzenier/seguide9706.txt
and then determine the most appropriate newsgroup before he posts again.

There is virtually no reason for someone to cross-post. It's usually
laziness.

Nonetheless, his question is valid and broadening one's experiences can't
hurt.

A totally optical endoscope uses what's called a "coherent optical bundle".
This has 100s of thousands of fibers arranged in exactly the same pattern
at both ends. That's why they cost 10s of thousands of dollars.

Google: "coherent optical bundle" or something like that. Or, "endoscope"
for that matter.

Many newer ones use miniature CCD cameras.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.