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Application filed by John Freeman RobinfiledCriticalJohn Freeman Robin
Priority to MYPI99002379ApriorityCriticalpatent/MY126480A/en
Publication of MY126480ApublicationCriticalpatent/MY126480A/en
Diffracting Gratings Or Hologram Optical Elements
(AREA)
Abstract
AN OPTICAL INSTRUMENT IS DESCRIBED IN WHICH A DIFFRACTIVE ELEMENT (25) IS LOCATED AT A FOCAL OR IMAGE PLANE (3) OF THE INSTRUMENT AND THE DIFFRACTIVE ELEMENT (25) IS EFFECTIVE TO PRODUCE AN ARRAY (6) OF A PLURALITY OF EXIT PUPILS AT A VIEWWING POSITION FOR THE INSTRUMENT AND THEREBY TO FORM AN ENLARGED EXIT PUPIL FOR THE INSTRUMENT. THE DIFFRACTIVE ELEMENT IS FORMED TO PROVIDE A PLURALITY GREATER THAN TWO OF OPTICAL DIFFRACTIVE GRATINGS EACH BEING DISPOSED ANGULARLY RELATIVE TO OTHER OF THE PLURALITY OF OPTICAL DIFFERACTIVE GRATINGS.(FIG 3)
MYPI99002379A1999-06-101999-06-10Optical instrument and optical element thereof
MY126480A
(en)