Patent ID: 6104533
Filing Date: 2000-08-15
Classification: G02B,G03B

Abstract:
An optical system suitable for use with optical radiation of wavelength .lambda. for providing a framed scene at a viewer's eye, said optical system comprising:an objective lens disposed between the scene and the viewer's eye;an optical display component disposed along the optical axis of said objective lens;an eye lens disposed along the optical axis of said objective lens such that the combination of said eye lens and said objective lens serves to image the scene at the viewer's eye;an optical element, having an inner portion and an outer portion, said inner portion is devoid of diffractive power; and said outer portion comprises a plurality of diffractive optical elements disposed continuously on said outer portion; andsaid optical element, having a positive power, disposed between said optical display component and the viewer's eye such that the combination of said diffractive optical element and said eye lens serves to image said optical display component at the viewer's eye.