Abstract: An optical device (300) is disclosed. The optical device (300) comprises a planar substrate (316) formed with an input optical element (310) for receiving and redirecting light for propagation of the light within the substrate (316), and a left and a right output optical element (312, 314) for receiving light propagating within the substrate (316) and coupling the light out of the substrate (316). In an embodiment of the invention, the device comprises a mounting member (330) for mounting the substrate (316) in front of a face of a viewer such that the substrate is slanted at a tilt angle with respect to a line of sight of the viewer and the left and the right output optical elements (312, 314) respectively provide the light to a left eye (25) and a right eye of the viewer.

Abstract: An optical system for transmitting a stereoscopic image to a right eye and a left eye of a user is disclosed. The system comprises an optical relay device, having a light-transmissive substrate, an input grating, a left output grating and a right output grating. The optical relay device is designed and constructed such that light is diffracted by the input grating, propagates within the light-transmissive substrate via total internal reflection, and diffracted out of the light-transmissive substrate by at least one of the left and right output gratings. The system further comprises an image generating system, optically coupled to the input grating and configured for providing collimated light constituting a left-eye image and a right-eye image wherein the left-eye image is parallactically related to the right-eye image.

Abstract: An optical relay comprises a light-transmissive substrate having a plurality of diffractive optical elements, where at least one diffractive optical element is characterized by nonuniform diffraction efficiency. The substrate and diffractive optical elements are designed and constructed to relay at least a portion of a light beam emanating from an object to at least one predetermined eye-box in a manner such that for each point of the object, there is a set of parallel outgoing light rays originating from the point and arriving to the eye-box. The color difference between any two parallel light rays of the set is less than 50 ?E* units.

Abstract: An optical apparatus for transmitting light having a spectrum of wavelengths is disclosed. The apparatus comprises a plurality of optical devices design and constructed to decompose the light into a plurality of portions, respectively corresponding to different sub-spectra of the spectrum, such that each portion of the light is transmitted within a different optical device.

Abstract: An optical relay device for transmitting light striking the optical relay device at a plurality of angles within a field-of-view is provided. The device comprises a light-transmissive substrate, an input optical element and an output optical element. The input element diffracts the light to propagate within the light-transmissive substrate via total internal reflection, and the output element diffracts the light out of the substrate. The output element is characterized by planar dimensions selected such that at least a portion of one or more outermost light rays within the field-of-view is directed to a two-dimensional region being at a predetermined distance from the substrate.

Abstract: A binocular device for transmitting an image into the eyes is provided. The binocular device comprises a first monocular device, for providing one eye with a first asymmetric field-of-view, and a second monocular device for providing another eye with a second asymmetric field-of-view, where the first and second asymmetric field-of-views are mutually complementary to a combined field-of-view, wider than each individual asymmetric field-of-view.

Abstract: An optical relay device, comprising a substrate, and at least one diffractive optical element is disclosed. The substrate is made, at least in part, of a light transmissive polymeric material characterized by a birefringence, ?n, satisfying the inequality |?n|<?, where ? is lower than the birefringence of polycarbonate. In a preferred embodiment, the light transmissive polymeric material comprises a cycloolefin polymer or a cycloolefin copolymer.

Abstract: A compact chromatic display system to be used by a viewer to view a virtual image including: (a) an output optical device, which enables the viewer to see through it a chromatic virtual image. (b) an input optical device. (c) an optical arrangement for directing light from the input optical device to the output optical device and (d) a Shift Adjusted Display (SAD) device that radiates chromatic image.

Abstract: An optical apparatus for transmitting light having a spectrum of wavelengths is disclosed. The apparatus comprises a plurality of optical devices design and constructed to decompose the light into a plurality of portions, respectively corresponding to different sub-spectra of the spectrum, such that each portion of the light is transmitted within a different optical device.

Abstract: A compact chromatic display system to be used by a viewer to view a virtual image including: (a) an output optical device, which enables the viewer to see through it a chromatic virtual image. (b) an input optical device. (c) an optical arrangement for directing light from the input optical device to the output optical device and (d) a Shift Adjusted Display (SAD) device that radiates chromatic image.