tailieunhanh - The Encyclopedia of Physical Science and Technology

Nine years has passed since the 1992 second edition of the encyclopedia was published. This completely revised third edition, which is a university and professional level compendium of chemistry, molecular biology, mathematics, and engineering, is refreshed with numerous articles about current research in these fields. For example, the new edition has an increased emphasis on information processing and biotechnology, reflecting the rapid growth of these areas. The continuing Editor-in-Chief, Robert Meyers, and the Board prepared a new topical outline of physical science and technology to define complete coverage. Section editors are either Nobel Laureates or editors of key journals in. | Encyclopedia of Physical Science and Technology EN003H-945 June 13 2001 22 9 P1 LLL MBR P2 FPP Final Qu 00 00 00 00 Color Science Robert M. Boynton University of California San Diego I. Physical Basis of Perceived Color II. CIE System of Color Specification III. Color Rendering IV. Global Surface Properties V. Physical Basis of Surface Color VI. Color Difference and Color Order VII. Physiological Basis of Color Vision GLOSSARY Chromaticity Ratios x y z of each of the tristimulus values of a light to the sum of the three tristimulus values X Y Z these being the amounts of three primaries required to match the color of the light. Chromaticity diagram Plane diagram formed by plotting one of the three chromaticity coordinates against another usually y versus x . Color Characteristics of sensations elicited by light by which a human observer can distinguish between two structure-free patches of light of the same size and shape. Colorant A substance such as a dye or pigment that modifies the color of objects or imparts color to otherwise achromatic objects. Colorimetry Measurement and specification of color. Color matching Action of making a test color appear the same as a reference color. Color order System of reference whereby the relation of one color to another can be perceived and the position of that color can be established with respect to the universe of all colors. Color rendering General expression for the effect of a light source on the color appearance of objects in comparison with their color appearance under a reference light source. Color temperature Absolute temperature of a blackbody radiator having a chromaticity closest to that of a light source being specified. Metamerism 1 Phenomenon whereby lights of different spectral power distributions appear to have the same color. 2 Degree to which a material appears to change color when viewed under different illuminants. Optimal colors Stimuli that for a given chromaticity have the greatest luminous .

• Vật lý
• Surface Color
• Physiological Basis
• GLOBAL SURFACE
• Imaginary Primaries
• Organic Molecules
• COLOR VISION