Bruce Bruen
bbruen at bigpond.com
Sat May 24 08:41:24 CDT 2003
In actual fact what your eyes see is edges not "white" or "black". The rods and cones fire when a change in the "lightbeam" that hits those cells occurs. Your eyes make teeny weeny little movements all the time so you can discern the edges that occur on static visual stimulii ( eg writing on a page). Thus the argument of seeing what is or is not there is fallacious - you must have the edges present in the stimulii to see anything. For years I insisted that I preferred white on blue as the less eye straining computer screen layout - now that my eyes have deteriorated to the point where I cannot read anything less than 14pt time roman without glasses I have gone back to black on white - and hate white on blue with a passion, especially on paper. In fact, I dislike most web pages on principal regardless of colouring. Come to think of it, computers are a bloody poor idea........ fades away into the (red on yellow) sunset home for old programmers, singing, singing "I'm a lumberjack......... -----Original Message----- From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Don Elliker Sent: Saturday, May 24, 2003 1:54 AM To: <mailto:accessd at databaseadvisors.com> accessd at databaseadvisors.com Subject: Re: [AccessD] Good Interface Examples But what about the fact that the retina is a reflective surface and so all perception of color whatever the scheme is refective...... _d "Things are only free to the extent that you don't pay for them." >From: MartyConnelly >Reply-To: accessd at databaseadvisors.com >To: accessd at databaseadvisors.com >Subject: Re: [AccessD] Good Interface Examples >Date: Fri, 23 May 2003 08:26:16 -0700 > >I believe all raster screens use RGB additive colours, however >vector graphic screens(draws only a single line at a time) like the >old Tektronix colour graphics terminals, used subtractive CYM >colours. This only got messy when you were trying to add 35 mm >cameras to capture the screen output to slides. I used this back in >80's for IBM main frame 3270 colour terminals. The 35 mm terminal >adapter was expensive at the time around $5000. > >Drew Wutka wrote: > >>True, but just out of curiousity, does MS Access use a transmitted >>light >>scheme, or a reflective light scheme? >> >>Unless of course you are talking about printed reports, but then >>that is not >>an interface. >> >>Drew >> >>-----Original Message----- >>From: Wortz, Charles [mailto:CWortz at tea.state.tx.us] >>Sent: Thursday, May 22, 2003 11:56 AM >>To: accessd at databaseadvisors.com >>Subject: RE: [AccessD] Good Interface Examples >> >> >>Drew and Roz, >> >>In the additive color scheme, such as transmitted light, black is >>the >>absence of all colors and white is the sum of all colors. In the >>subtractive color scheme, such as in inks and other reflective >>light >>schemes, black is the sum of all colors and white is the absence of >>all >>colors. So you need to specify which color scheme you are using >>when >>you make blanket statements about black and white. >> >> >>Charles Wortz Software Development Division Texas Education Agency >>1701 N. Congress Ave Austin, TX 78701-1494 512-463-9493 >>CWortz at tea.state.tx.us -----Original Message----- >>From: Charlotte Foust [mailto:cfoust at infostatsystems.com] Sent: >>Thursday 2003 May 22 11:39 >>To: accessd at databaseadvisors.com >>Subject: RE: [AccessD] Good Interface Examples >> >>Philosphically, you may be right. Unfortunately, my eyes aren't >>philosophical about it. Black, and all dark colors for that >>matter, >>have visual "weight" that overpowers white. So on a black page >>with >>white print, the background overpowers the text. At least, that's >>the >>way *my* vision works. >> >>Charlotte Foust >>-----Original Message----- >>From: Drew Wutka [mailto:DWUTKA at marlow.com] Sent: Thursday, May 22, >>2003 8:20 AM >>To: 'accessd at databaseadvisors.com' >>Subject: RE: [AccessD] Good Interface Examples >> >> >>That's what I thought (though I think you have your last sentence >>reversed...books are black on white...). White on Black is letting >>your >>eye's see what's there, not what's NOT there. (Since Black is the >>absence of all color, and white is the presence of all.) >> >>Drew >>-----Original Message----- >>From: Roz Clarke [mailto:roz.clarke at donnslaw.co.uk] >>Sent: Thursday, May 22, 2003 8:46 AM >>To: 'accessd at databaseadvisors.com' >>Subject: RE: [AccessD] Good Interface Examples >> >> >>Psych studies have actually shown that the human eye differentiates >>light on dark more easily than dark on light and a dark background >>(making up, as it does, most of the screen) should cause less >>strain to >>the eyes, being less bright. >> >>However, I think that we find reading white-on-black easiest >>because >>we've all been habituated to it from reading books. >> >>Roz >>Roz _______________________________________________ >>AccessD mailing list >>AccessD at databaseadvisors.com >>http://databaseadvisors.com/mailman/listinfo/accessd >>Website: http://www.databaseadvisors.com >>_______________________________________________ >>AccessD mailing list >>AccessD at databaseadvisors.com >>http://databaseadvisors.com/mailman/listinfo/accessd >>Website: http://www.databaseadvisors.com >> >> >> > > >_______________________________________________ >AccessD mailing list >AccessD at databaseadvisors.com >http://databaseadvisors.com/mailman/listinfo/accessd >Website: http://www.databaseadvisors.com _____ Tired of spam? 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