SPECTROPHOTOMETER ILLUMINATOR Russian patent published in 1997 - IPC

FIELD: spectrophotometry. SUBSTANCE: device has optically connected radiator, projection lens, specimen holder and field diaphragm. Optical connection is obtained by coupling the radiator through projection lens to plane positioned between projection lens and field diaphragm at distance of $$$ from the latter which satisfies correlation $$$ where a is radiator width in dispersion plane; V is linear magnification of projection lens; b is field diaphragm effective width determined by opening of monochromator slits; $$$ is output numerical aperture of projection lens. EFFECT: improved spectrophotometric process. 2 dwg