Voltage: 9 or
Pinhole Lens: The front opening of
a pinhole lens can be 1/32" in diameter. They are put in a camera
with certain specifications:
Field of View: 90
400 TV lines
Pinhole lenses are commonly used due
to their small size. They can be put in a small camera case of 1/2
Pinhole lenses are sensitive to low-light
conditions and one lens could cost about $500. (Yost 208)
This is a fiber optic lens. As
you can see, it is like a long tube. It can be used by drilling a
hole in a wall, snaking it through a key hole, or in many other hard-to-reach
places. (Yost 208) It can also be used as a recording device when
screwed onto a camcorder adaptor. The standard length is a meter,
but there are some 3 meter models available.
This is the size of the smaller end.
The diameter is 2 mm and it captures a field of view of 45 degrees and
sees images near or far. It can do this because it has the ability to bend
light. That is how you are able to see, although it is bent.
The Spy Shop sells the 1 meter models for $580, the 2 meter models for
$780, and the 3 meter models for $830. (Spy
both fiber optic scope images borrowed from "http://www.spy.th.com/opticsb.html"
This segment of the page was last updated May 12, 1999