THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS

PREDICTABLE CHARACTERISTICS OF LIGHT THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS PREDICTABLE CHARACTERISTICS OF LIGHT

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS SELECTIVE ABSORPTION

NON-SELECTIVE ABSORPTION THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS NON-SELECTIVE ABSORPTION

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS THE RATIO OF THE LIGHT TRANSMITTED THROUGH A MATERIAL TO THE TOTAL INCIDENT LIGHT FALLING ON IT.

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS DIRECT TRANSMITTANCE

DIFFUSE TRANSMITTANCE THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS DIFFUSE TRANSMITTANCE

DIFFUSE TRANSMITTANCE THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS S.O.M., BEINECHE RARE BOOK LIBRARY, YALE UNIVERSITY, NEW HAVEN, CT DIFFUSE TRANSMITTANCE

DIFFUSE TRANSMITTANCE THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS S.O.M., BEINECHE RARE BOOK LIBRARY, YALE UNIVERSITY, NEW HAVEN, CT DIFFUSE TRANSMITTANCE

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS THE BENDING OF A RAY OF LIGHT AS IT PASSES OBLIQUELY THROUGH A MATERIAL.

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS REFRACTION

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS THE RATIO OF LIGHT REFLECTED BY A SURFACE TO THE INCIDENT LIGHT FALLING ON IT.

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS W.BECKET: HYATT REGENCY HOTEL, DALLAS, TX SPECULAR REFLECTANCE

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS DIFFUSE REFLECTANCE

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS REFLECTANCE

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY ABSORPTION TRANSMITTANCE REFRACTION REFLECTANCE PHOTOMETRY MEASUREMENTS COMBINED REFLECTANCE

LUMINOUS INTENSITY (I) THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS DEFINITION: AN INDEX OF THE ABILITY OF A LIGHT SOURCE TO PRODUCE ILLUMINATION. IT ALWAYS HAS A DIRECTIONAL CONNOTATION, SUCH AS HORIZONTAL CANDLEPOWER, CANDLEPOWER AT 60 DEGREES, OR SPHERICAL CANDLEPOWER. UNITS: AMERICAN STANDARD: CANDLEPOWER (CP) SYSTEM INTERNATIONAL: CANDELA (CD) LUMINOUS INTENSITY (I)

CANDLEPOWER DISTRIBUTION CURVE THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS CANDLEPOWER DISTRIBUTION CURVE

A QUANTITATIVE UNIT FOR MEASURING THE FLOW OF LIGHT ENERGY. THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS A QUANTITATIVE UNIT FOR MEASURING THE FLOW OF LIGHT ENERGY. UNITS: LUMENS

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS LUMINOUS FLUX (F)

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS THE DENSITY OF LUMINOUS POWER, EXPRESSED IN TERMS OF LUMENS PER UNIT AREA. AMERICAN STANDARD: FOOTCANDLES SYSTEM INTERNATIONAL: LUX 10.764 LUX = 1 FOOTCANDLE ILLUMINANCE (E)

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS ILLUMINANCE (E)

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS INVERSE SQUARE LAW

LUMINANCE & BRIGHTNESS THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS BRIGHTNESS AND LUMINANCE: AN INDEX OF THE INTENSITY OF LIGHT BEING EMITTED, TRANSMITTED, OR REFLECTED FROM A SURFACE. LUMINANCE & BRIGHTNESS

THE PHYSICS OF LIGHT LUMINANCE: INTRODUCTION CHARACTERISTICS A MEASURED QUANTITY OF THE INTENSITY OF LIGHT BEING EMITTED, TRANSMITTED, OR REFLECTED FROM A SURFACE. UNITS: AS = FOOTLAMBERTS SI = LAMBERTS THE VALUE OF A FOOTLAMBERT IS 1 LUMEN PER SQUARE FOOT, WHICH IS EXPRESSED IN THE SAME UNITS AS FOOTCANDLES. INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS LUMINANCE

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY LUMINOUS INTENSITY LUMINOUS FLUX ILLUMINANCE INVERSE SQUARE LAW LUMINANCE & BRIGHTNESS MEASUREMENTS BRIGHTNESS

THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS LIGHT METER

THE PHYSICS OF LIGHT COLOR CORRECTION: COSINE CORRECTION: INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS COLOR CORRECTION: THE HUMAN EYE IS NOT EQUALLY SENSITIVE TO THE VARIOUS WAVELENGTHS (COLOR). MAXIMUM SENSITIVITY IS IN THE YELLOW-GREEN AREA WHILE SENSITIVITY AT THE RED & BLUE ENDS OF THE SPECTRUM IS QUITE LOW. THIS EFFECT IS SO PRONOUNCED THAT 10 UNITS OF BLUE ENERGY ARE REQUIRED TO PRODUCE THE SAME VISUAL EFFECT AS 1 UNIT OF YELLOW-GREEN. COSINE CORRECTION: CORRECTION FOR LIGHT INCIDENT AT OBLIQUE ANGLES THAT DOES NOT REACH THE CELL DUE TO REFLECTION FROM THE SURFACE GLASS & SHIELDING OF THE LIGHT-SENSITIVE CELL BY THE METER HOUSING. LIGHT METER

ILLUMINANCE MEASUREMENTS THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS ILLUMINANCE MEASUREMENTS

LUMINANCE MEASUREMENTS THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS LUMINANCE MEASUREMENTS

REFLECTED-INCIDENT LIGHT METHOD THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS REFLECTED-INCIDENT LIGHT METHOD

KNOWN-SAMPLE COMPARISON METHOD THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS KNOWN-SAMPLE COMPARISON METHOD

TRANSMITTANCE MEASUREMENTS THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS TRANSMITTANCE MEASUREMENTS

LUMINOUS INTENSITY MEASUREMENTS THE PHYSICS OF LIGHT INTRODUCTION CHARACTERISTICS PHOTOMETRY MEASUREMENTS ILLUMINANCE MEASUREMENTS LUMINANCE MEASUREMENTS REFLECTANCE MEASUREMENTS TRANSMITTANCE MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS LUMINOUS INTENSITY MEASUREMENTS