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Science Forum Index » Optics Forum » Corner reflectors?
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| William P.N. Smith |
 Posted: Sun Nov 09, 2003 2:16 pm |
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Are there any inexpensive corner reflectors for hobbyist type use, or
are there any tricks to making your own from mirror tiles?
I'd like to use them for reflecting flashlights and pocket lasers,
FWIW.
Thanks!
--
William Smith
ComputerSmiths Consulting, Inc. www.compusmiths.com |
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| Rene Tschaggelar |
| Posted: Sun Nov 09, 2003 4:54 pm |
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William P.N. Smith wrote:
Quote: Are there any inexpensive corner reflectors for hobbyist type use, or
are there any tricks to making your own from mirror tiles?
I'd like to use them for reflecting flashlights and pocket lasers,
FWIW.
You can indeed glue them together yourself with mirrors and
epoxy glue. What kind of accuracy did you have in mind ?
As example, 1 arcsecond is 4.8 mm on 1 km, or in the order of
a third of an inch on a mile. Provided you're able to detect that.
It means your beam has to be sufficiently focused
over such a distance.
Rene
--
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
& commercial newsgroups - http://www.talkto.net |
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| AES/newspost |
| Posted: Sun Nov 09, 2003 4:54 pm |
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In article <2i4tqvgodd2ka5nmungrmpjmnknphhjlng@4ax.com>,
William P.N. Smith <> wrote:
Quote: Are there any inexpensive corner reflectors for hobbyist type use, or
are there any tricks to making your own from mirror tiles?
I'd like to use them for reflecting flashlights and pocket lasers,
FWIW.
Edmund Optics might have low cost corner-cube reflectors.
Any kind of reflecting tape (Scotch, 3M, etc), or "Botts Dots"
reflectors used in roads, have low-grade retroreflective properties due
(I think) to small spheres embedded in them.
Making your own requires very careful alignment of the mirrors. Corner
cube prisms are more commonly employed.
Or, hobbyist "surplus stores" might have corner cubes.. |
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| Detector195 |
| Posted: Sun Nov 09, 2003 6:02 pm |
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William P.N. Smith <> wrote in message news:<2i4tqvgodd2ka5nmungrmpjmnknphhjlng@4ax.com>...
Quote: Are there any inexpensive corner reflectors for hobbyist type use, or
are there any tricks to making your own from mirror tiles?
I'd like to use them for reflecting flashlights and pocket lasers,
FWIW.
Thanks!
Bicycle reflectors do a pretty good job. OMRON sells a molded plastic
retro in clear acrylic with really big segments, for their industrial
sensors. |
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| John Popelish |
| Posted: Sun Nov 09, 2003 6:25 pm |
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| Joe |
| Posted: Mon Nov 10, 2003 9:22 am |
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| William H. Hathaway |
| Posted: Mon Nov 10, 2003 11:32 am |
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AES/newspost wrote:
Quote:
In article <2i4tqvgodd2ka5nmungrmpjmnknphhjlng@4ax.com>,
William P.N. Smith <> wrote:
Are there any inexpensive corner reflectors for hobbyist type use, or
are there any tricks to making your own from mirror tiles?
I'd like to use them for reflecting flashlights and pocket lasers,
FWIW.
Edmund Optics might have low cost corner-cube reflectors.
Any kind of reflecting tape (Scotch, 3M, etc), or "Botts Dots"
reflectors used in roads, have low-grade retroreflective properties due
(I think) to small spheres embedded in them.
Some of these reflecting tapes do use small spheres. But some of
the better one actually do have micro corner cube reflectors.
I got microscopic digital pictures of these that show this clearly.
Whether these would be of any help to the original poster, I
have no idea, but readers should be aware that there are
different kinds of reflecting tapes on the market. And the roads.
Quote: Making your own requires very careful alignment of the mirrors. Corner
cube prisms are more commonly employed.
Or, hobbyist "surplus stores" might have corner cubes.. |
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