| Patent Number |
Title Of Patent |
Date Issued |
| 7577326 |
Optical device for light coupling |
August 18, 2009 |
| There is provided an optical device, including a light-transmitting substrate having two major surfaces parallel to each other and two edges, optics for coupling light into the substrate by internal reflection. One of the edges is slanted with respect to the major surfaces and a portion |
| 7576916 |
Light guide optical device |
August 18, 2009 |
| The invention provides an optical device, including a light-transmitting substrate, optical means for coupling light into the substrate by total internal reflection, and a plurality of partially reflecting surfaces carried by the substrate, characterized in that the partially reflecting |
| 7460302 |
Dynamic optical devices |
December 2, 2008 |
| The invention provides an optical device, including a light-transmissive substrate, and a pair of different, parallel gratings including a first grating and a second grating, located on the substrate at a constant distance from each other, each of the pair of parallel gratings including |
| 7457040 |
Light guide optical device |
November 25, 2008 |
| There is provided an optical device including a light-transmitting substrate having at least two major surfaces and edges, optical means for coupling light into the substrate by total internal reflection and at least one partially reflecting surface located in the substrate. |
| 7391573 |
Substrate-guided optical devices |
June 24, 2008 |
| There is provided an optical device, having a light-transmitting substrate having at least two major surfaces (26) parallel to each other and edges; optical means (16) for coupling light waves located in a field-of-view into the substrate by internal reflection, and at least one partiall |
| 7339742 |
High brightness optical device |
March 4, 2008 |
| There is provided an optical device, comprising a display source; a light-diffuser; an imaging optical module, and an output aperture from the optical device characterized in that the light diffuser is an angular, non-uniform diffuser of light for increasing a portion of light emergi |
| 7021777 |
Optical devices particularly for remote viewing applications |
April 4, 2006 |
| There is provided an optical device for transferring light within a given field-of-view, comprising an input aperture; reflecting surfaces, and an output aperture located in spaced-apart relationship from the input aperture such that light waves, located within the field-of-view, that |
| 7006266 |
Optical switching devices |
February 28, 2006 |
| The invention provides an optical switcing device, including a substrate having at least one polarization-selective multiplexing grating; at least one polarization-selective demultiplexing grating, and a polarization rotation element acting as a dynamic 1/2 .lamda. plate, optically i |
| 6829095 |
Substrate-guided optical beam expander |
December 7, 2004 |
| The invention provides an optical device, including a light-transmitting substrate, optical means for coupling light into the substrate by total internal reflection, and a plurality of partially reflecting surfaces carried by the substrate, characterized in that the partially reflecting |
| 6580529 |
Holographic optical devices |
June 17, 2003 |
| The invention provides a holographic optical device, including a light-transmissive substrate; a first holographic optical element carried by the substrate; at least one second holographic optical element carried by the substrate laterally of the first holographic optical element, and |
| 6185015 |
Compact planar optical correlator |
February 6, 2001 |
| A planar optical correlator including at least first and second optical substrates (30, 32), through which light propagates by means of total internal reflection, at least first and second holographic lenses (20, 22) on the first optical substrate and optical third and fourth holographic |
| 6172778 |
Compact optical crossbar switch |
January 9, 2001 |
| A planar optical crossbar switch comprising two thin planar substrates, on each of which are recorded or attached two holographic lenses between which light propagates by means of total internal reflection. The first lens is a negative cylindrical lens, used to input the incident light |
| 6169613 |
Planar holographic optical device for beam expansion and display |
January 2, 2001 |
| A holographic optical device includes a light transmissive substrate carrying first and second laternally separated holographic optical elements. The first holographic optical element diffracts incident light into the substrate where it is trapped by internal reflection so that light |
| 5966223 |
Planar holographic optical device |
October 12, 1999 |
| A holographic optical device having a light transmissive substrate with a first holographic optical element carried by the substrate, and a second holographic optical element also carried by the substrate but laterally offset from the first holographic optical element. The first holograp |
| 5682255 |
Holographic optical devices for the transmission of optical signals of a plurality of channels |
October 28, 1997 |
| A holographic optical device includes a light-transmissive substrate, a first holographic optical element, and a second holographic optical element that is laterally disposed on the substrate from the first holographic optical element. At least one of the holographic optical elements |
| 5610734 |
Chromatic focal pencil beam-generating apparatus |
March 11, 1997 |
| An optical system is disclosed which focuses a polychromatic source to an extended focal pencil. The implementation makes use of two holographic optical elements (HOEs) fabricated and aligned to form a deliberate longitudinal color dispersion, but to alleviate lateral chromatic effects. |
| 5422746 |
Single and multiple element holographic devices for high-efficiency beam correction |
June 6, 1995 |
| The holographic element of the present invention includes a holographic grating pattern that is impressed in the media of the element utilizing beams of electromagnetic energy of wavelength .lambda..sub.o. The holographic grating pattern is capable of manipulating a beam of electroma |
| 4998786 |
Method of producing holograms particularly for holographic helmet displays |
March 12, 1991 |
| A method of producing a desired hologram for a holographic optical element for use in imaging a multi-dimensional array of points, in which two coherent recording beams are utilized to produce an interference pattern which is recorded to form the desired hologram, characterized in that o |
