Clarity SN-4620-1080 manual Test Patterns

	Test Patterns
Test Pattern	Notes
None	Displays the source
Red	Displays a full screen of the selected color. Gray displays a 50% gray pattern, which is useful for
Green	detecting if TIR has occurred. For more information, see “Optimizing Your Clarity Display” on
Blue	page 116.
Black
Grey
Gray Scale	These show 32- or 64-step scales. You should be able to see all the steps clearly.
Red Scale
Green Scale
Blue Scale
Colors	Displays a rainbow of colors and a gray scale at several levels of saturation for testing uniformity.
Color Bars	Displays a pattern of the three primary colors and the primary combinations along with black and
	white. This is similar to, but not the same as, color bars in the television and video field. These bars
	are 100% saturated.
Grid	Displays a large grid pattern with illuminated outer edge, and is useful for aligning an image, espe-
	cially in rear projection applications
Alignment Dashes	Displays a set of six-pixel staggered alignment bars. Used to ensure the same number of pixels are
	hidden on all sides in rear projection systems. Not useful in direct view applications
4x4 Checkerboard	Used in the factory to measure the contrast of a system
Uniformity	Used in the factory to measure brightness of the rear projection lamps in 13 different locations on the
	screen
Focus	Used in the factory to adjust the focus of rear projection systems
Logo	Displays the default factory logo or a custom captured logo.

89