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Digilens Inc patents


Recent patent applications related to Digilens Inc. Digilens Inc is listed as an Agent/Assignee. Note: Digilens Inc may have other listings under different names/spellings. We're not affiliated with Digilens Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Digilens Inc-related inventors


Holographic waveguide light field displays

A light field display, having at least one laser emitter, an optical modulator for modulating light from the laser emitter with video information; a beam focus modulator; an array of beam scanning elements; an electrically controllable beam focus modulator; and at least one at least one waveguide having at least one transparent substrate, an input grating and an output grating for extracting light from the waveguide; and an eye tracker.. . ... Digilens Inc

Holographic waveguide optical tracker

There is provided an object tracker having: a first waveguide; a source of illumination light; a detector optically coupled to the waveguide; and at least one grating lamina formed within the waveguide. Illumination light propagating along a first optical path from the source to an object in relative motion to the object tracker. ... Digilens Inc

Method for holographic mastering and replication

A method for producing holograms with a multiplicity of holographic prescriptions from a single master is provided. A multiplicity of holographic substrates each having a first hologram is stacked on a second holographic recording medium substrate. ... Digilens Inc

Wearable heads up displays

An optical display, including a first waveguide having a first set of surfaces, an input grating, a fold grating, and an output grating; an image input image node assembly; and a prismatic relay optics is provided. The prismatic relay optics may be configured to be optomechanically connected to the waveguide and the input image node assembly. ... Digilens Inc

Optical apparatus for recording a holographic device and method of recording

An apparatus for recording a holographic device comprises: a master hologram comprising a multiplicity of holographic elements each characterized by one of a predefined set of grating prescriptions; a transparent substrate supporting a layer of holographic material; and a light source. Each holographic element diffracts source light onto a predefined region of the layer. ... Digilens Inc

Contact image sensor using switchable bragg gratings

A contact image sensor comprises: a light source providing a collimated beam; a detector and a switchable grating array comprising first and second transparent substrates sandwiching an array of switchable grating elements with transparent electrodes applied to said substrates, said substrates together providing a total internal reflection light guide. A first transmission grating layer overlays said first substrate. ... Digilens Inc

Method and apparatus for contact image sensing

A contact image sensor having a waveguiding structure for propagating light in a first direction including, in series, a first clad medium, a first core, a switchable grating clad, a second core, and a second clad medium sandwiched by transparent substrates, patterned parallel electrode elements orthogonally traversing the waveguides, a light source, a platen and a detector. Switchable grating regions overlapped by a first voltage-addressed electrode element diffract tir light from the first core towards the platen. ... Digilens Inc

Waveguide device incorporating a light pipe

A waveguide apparatus has in combination: a light pipe with an optical axis for guiding light therethrough; a light coupling element in optical contact with an elongate portion of the reflecting surface of the light guide; and an optical waveguide in optical contact with the coupling element.. . ... Digilens Inc

Environmentally isolated waveguide display

A waveguide display having an input image generator providing image light projected over a field of view; a waveguide having first and second external surfaces; and at least one grating optically coupled to the waveguide for extracting light towards a viewer. The waveguide has a lateral refractive index variation between said external surfaces that prevents any ray propagated within the waveguide from optically interacting with at least one of the external surfaces.. ... Digilens Inc

Holographic waveguide lidar

A holographic waveguide lidar having a transmitter waveguide coupled to a beam deflector and a receiver waveguide coupled to a detector module. The transmitter waveguide contains an array of grating elements for diffracting a scanned laser beam into a predefined angular ranges. ... Digilens Inc

Method and apparatus for contact image sensing

A contact image sensor having an illumination source; a first sbg array device; a transmission grating; a second sbg array device; a waveguiding layer including a multiplicity of waveguide cores separated by cladding material; an upper clad layer; and a platen. The sensor further includes: an input element for coupling light from the illumination source into the first sbg array; a coupling element for coupling light out of the cores into output optical paths coupled to a detector having at least one photosensitive element.. ... Digilens Inc

Diffractive waveguide providing structured illumination for object detection

A projection display device comprising a light source and an sbg device having a multiplicity of separate sbg elements sandwiched between transparent substrates to which transparent electrodes have been applied. The substrates function as a light guide. ... Digilens Inc

Waveguide laser illuminator incorporating a despeckler

There is provided an illumination device having: a laser; a waveguide including at least first and second transparent lamina; a first grating device for coupling light from the laser into a tir path in the waveguide; a second grating device for coupling light from the tir path out of the waveguide; and a third grating device for applying a variation of at least one of beam deflection, phase retardation or polarization rotation across the wavefronts of the tir light. The first second and third grating devices are each sandwiched by transparent lamina.. ... Digilens Inc

Apparatus for eye tracking

An eye tracker having a waveguide for propagating illumination light towards an eye and propagating image light reflected from at least one surface of an eye, a light source optically coupled to the waveguide, and a detector optically coupled to the waveguide. Disposed in the waveguide is at least one grating lamina for deflecting the illumination light towards the eye along a first waveguide path and deflecting the image light towards the detector along a second waveguide path.. ... Digilens Inc

02/02/17 / #20170030550

Compact holographic illumination device

There is provided a colour sequential illumination device comprising in series: first and second light sources; a condenser lens; and a grating device. The grating device comprises at least one bragg grating. ... Digilens Inc








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