[net.micro] 19 inch anti-glare screen wanted

pma@husky.uucp (Philip Abram) (07/02/85)

 Does any one know of a stand alone anti-glare screen for the Sun 2/120 
graphics monitor? The monitor is produced by Moniterm Corp. and they were not 
aware of any such device. It is a 19 inch monochrome display with 16.5"x13.5"
flush cabinetry opening. The monitor can be purchased with an anti-glare 
coating but this is not field installable ( unless you have a vacuum form 
machine handy :-). Thanks in advance for any information.


                                    Philip Abram
                                    Eastman Kodak Co.
                                    901 Elmgrove Rd.
                                    Rochester, N.Y. 14650
                                    (716) 726-9963
 

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dsi@unccvax.UUCP (Dataspan Inc) (07/03/85)

    Optical Coating Laboratory, Incorporated makes a proprietary anti glare
coating for CRT manufacturers.  It works by coating a layer above the glass
such that the layer is 1/4 wavelength at the frequency of interest and is
reflected back from the glass/coating layer...voila, destructive cancellation.
Since the layer has an optical refractive index of ( n ** 1/2 ???) where n
is the glass r. i., the image coming from the CRT phosphour is not diffused...

     First, if you are willing to go to a LOT of trouble, the CRT which was
put in your terminal is ** Probably ** available in an OCLI version.  Second,
OCLI makes their neat stuff in sheet stock which they would be glad to cut
up for you to the right size. 

Try
   Optical Coating Laboratory, Inc.
   2789 Northpoint Parkway
   Santa Rosa, California  95407-7397
   707-545-6440

   P.S.  Be cool with these people, i.e. they are OEM's, not your
   basic ComputerWimp dealer . . .


David Anthony
Chief Development Engineer
DataSpan, Inc

.

campbell@DECWRL.ARPA (07/11/85)

In response to the message about OCLI (Optical Coating Laboratories):

I think the stuff is GREAT!  It's basically the same stuff you see on
good camera lenses -- magnesium fluoride, I think.  Nothing I've seen
can approach it for preventing glare and enhancing contrast.  The
screen is absolutely a FLAT dark dark grey with no reflections at ALL,
unless you get off to one side of the monitor and shine a bright light
at it.

All DEC PCs (DECmate, Rainbow, Pro) used to come with OCLI stuff on
their screens.  Unfortunately, DEC decided it cost more than it was
worth so they've switched to etching the glass (like IBM, bleah).
Apparently the cost to DEC, even in the enormous quantities DEC was
buying, was around $60 per CRT, which is steep.

There is one drawback, besides cost:  it fingerpints very easily, and you
have to be careful about cleaning it.  I like it so much I've just
gotten used to not touching the screen with my fingers -- I use a pen
to point at things on the screen.

I wish some of the 3rd-party vendors of monitors would start using
OCLI -- I'd love to get it on my PC/AT.

- Larry Campbell
  The Boston Software Works, Inc., 120 Fulton St., Boston MA 02109
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jbn@wdl1.UUCP (07/18/85)

     SUN used to offer this on their 19" tube; the option was about $500;
we bought four, and it worked quite well.  In terms of cost, it's a win
over having to install lamp dimmers, special work areas, etc. for places
with big brightly-lit rooms.  But SUN discontinued it, unfortunately; too
few customers ordered it.

					John Nagle