This page created 07/03/2001

Kilian's Sunday Robot Shop of Horrors - 07/02/2001

Last Friday, Brynn brought over Tryclops' eye, and we setup a CCD camera
at the focal plane, and did some testing. see: TryRange
Well, OF COURSE, Jeff Sampson suggested just taking a regular laser pointer
and angling it out in front of the camera and watching the spot move, so I
tried it last night.

The plot at the bottom of this page shows the pixel that the spot hits
while I move a sheet of white paper slowly away from the camera.

This was done with the full room lights and fluorescent light on.

So, since I like these results, I'm going to try spinning a mirror and taking
ranges this way, and we'll see...

Click thumbnails for a larger view.


More RSOH


Rangefinder test setup


The camera, lens and laser

The business end of the camera, lens and laser

The camera's view of a spot 1 Foot from the camera.

The camera's view of a spot 10 Feet from the camera.

A plot of top-pixel VS Range

A plot of center-pixel VS Range in Inches

An image of a projected laser circle from
a spinning piece of glass projected onto
cardboard

An image of a projected laser circle from
a spinning piece of mirror projected onto
the wall 10 feet away. ROOM LIGHS ON!!!

An image of a projected laser circle from
a spinning piece of mirror projected onto
the wall 10 feet away. ROOM LIGHS ON!!!

An image of a projected laser circle from
a spinning piece of mirror projected onto
the wall 10 feet away. ROOM LIGHS ON!!!
Motor spinning slower

An image of a projected laser circle from
a spinning piece of mirror projected onto
the wall 10 feet away. ROOM LIGHS ON!!!
Motor spinning slower