- From: jonathan chetwynd <jonathan@signbrowser.free-online.co.uk>
- Date: Wed, 25 Aug 1999 21:27:56 +0100
- To: "jonathan chetwynd" <jay@peepo.com>, "Kynn Bartlett" <kynn-hwg@idyllmtn.com>, "Leonard R. Kasday" <kasday@acm.org>
- Cc: <w3c-wai-ig@w3.org>
Members interested in exploring the nature of additive color could try the following experiment. First obtain a set of colored gels, sweet wrappers, or professional lighting or theatrical ones, and a stanmdard small greetings card with a fold Cut Three slits across the shorter side, each about 1.5" long and about 3/32" wide separated by 1/16". paste one gel over each slit With a bright sky, but not direct sunlight, open the card and holding the slits vertically look at the other side find a vertical post, lamp, window separator, 6-40' away depending on size. At a pinch, a pencil can be held vertically and in front and moved closer and further to achieve the desired result (This provides two diffuse sources) The three lights will add together and transmit light onto the other side of the card, providing 6 diamond shaped colors and white. Almost any selection will work, however Orange/Red, Green and Blue/Purple will provide the greatest gamut or breadth of colors. It is important that the three gels transmit ~equal amounts of light, for best results. jay@peepo.com a www for those learning to read. Please send us links to your favourite websites. Our site www.peepo.com is a drive thru. When you see a link of interest, click on it. Move the mouse to slow down. It is a graphical aid to browsing the www. We value your comments.
Received on Friday, 27 August 1999 03:25:53 UTC