A radio frequency (RF) jamming device includes a differential segmented aperture (DSA), a jammer source outputting a jamming signal at one or more frequencies or frequency bands to be jammed, and RF electronics that amplify and feed the jamming signal to the DSA so as to emit a jamming beam. The DSA includes an array of electrically conductive tapered projections, and the RF electronics comprise power splitters configured to split the jamming signal to aperture pixels of the DSA. The aperture pixels comprise pairs of electrically conductive tapered projections of the array of electrically conductive tapered projections. The RF electronics further comprise pixel power amplifiers, each connected to amplify the jamming signal fed to a single corresponding aperture pixel of the DSA. The RF jamming device may include a rifle-shaped housing, with the DSA mounted at a distal end of the barrel of the rifle-shaped housing.

An image capture device includes two fixed position ultra-wide angle lenses, one or more components to optically direct light, and a single image sensor. The two fixed position ultra-wide angle lenses face substantially opposing directions. A field of view of each of the lenses is greater than one hundred and eighty degrees. Facing the lenses in substantially opposing directions results in an overlapping region of image capture of substantially a three hundred and sixty degree horizontal field of view and a two hundred and seventy degree (or more) vertical field of view. The one or more components optically direct light so that optically directed light from both of the two fixed position ultra-wide angle lenses strikes a single surface of a single image sensor. The single image sensor converts an optical signal into an electronic signal.

A near eye optical display includes a waveguide comprising a first surface and a second surface, an input coupler, a fold grating, and an output grating. The input coupler is configured to receive collimated light from a display source and to cause the light to travel within the waveguide via total internal reflection between the first surface and the second surface to the fold grating; the fold grating is configured to provide pupil expansion in a first direction and to direct the light to the output grating via total internal reflection between the first surface and the second surface; and the output grating is configured to provide pupil expansion in a second direction different than the first direction and to cause the light to exit the waveguide from the first surface or the second surface.

Implementations are described of an eyepiece for a head wearable display. The eyepiece includes a curved lightguide for guiding display light via total internal reflection between a peripherally-located input surface and a viewing region and an output coupler disposed across the viewing region to redirect the display light towards an eyeward direction for output from the curved light guide. The output coupler has an optical axis and has a set of reflective surfaces that includes at least two individual reflective surfaces to reflect incident display light toward the eyeward direction in at least two different directions relative to the optical axis of the output coupler. Other embodiments are disclosed and claimed.

Optical apparatus for use with an image capture device having an optical input and an image sensor (22) defining a principal optical axis therebetween, the apparatus being configured to provide, via said input, a plurality of substantially parallel, spaced-apart optical beams to said image sensor (22), and comprising: a first optical unit (26) comprising a plurality of optical elements (10, 12, 14, 16, 18, 20), at least a first one of said optical elements being a first refractive element (12, 14, 18, 20) for refracting an optical beam incident thereon through substantially 90°; and a plurality of focusing lenses (lens0, lens1, lens2, lens3, lens4, lens5), each focusing lens being associated with a respective optical element and being configured to direct a respective incident optical beam thereon; wherein the focusing lens associated with said refractive element is arranged and configured to direct an incident optical beam thereon at substantially 90° to said principal optical axis, and the refractive element is arranged and configured such that, in use, the resultant refracted optical beam is substantially parallel to said principal optical axis as it reaches said image sensor (24).

A dynamic imaging system of an endoscope that adjusts path length differences or focal points to expand a usable depth of field. The imaging system utilizes a variable lens to adjust the focal plane of the beam or an actuated sensor to adjust the detected focal plane. The imaging system is thus capable of capturing and adjusting the focal plane of separate images captured on separate sensors. The separate light beams may be differently polarized by a variable wave plate or a polarized beam splitter to allow separate manipulation of the beams for addition of more frames. These differently focused frames are then combined using image fusion techniques.

A multi-facet display device. The multi-facet display device comprises: a first display panel with a U-shaped structure and a second display panel with a planar structure. The first display panel comprises a display region with a planar structure, and two opposed side surfaces each connected with the display region via an arc surface. The two side surfaces of the first display panel are bonded with the two side edges of the second display panel to form a closed structure having an outer surface as a display surface of the multi-facet display device. Compared with a multi-facet display device composed of multiple planar display panels, the multi-facet display device according to present invention can improve image continuity across respective display directions.

An imaging device includes: a plurality of optical systems each forming an image of a subject; a plurality of imaging sensors corresponding to the respective plurality of optical systems; and a housing part that houses the plurality of optical systems and the plurality of imaging sensors, the housing part having a peripheral surface along a circumferential direction about a reference axis, wherein: at least two of the plurality of optical systems each have: a peripheral lens arranged along the peripheral surface and located closest to an object; and a first optical path, the first optical paths of the at least two optical systems intersecting each other; and each of the peripheral lenses has a longitudinal direction, the peripheral lens being arranged along the peripheral surface such that the longitudinal direction extends along the reference axis.

An optical assembly includes a first reflector and a second reflector. The first reflector is positioned to receive first light having a first polarization and provide the first light toward a first direction, and receive second light having the first polarization and provide the second light toward a second direction. The second reflector is positioned to receive the second light from the first reflector and reflect the second light back toward the first reflector. The first reflector receives light having a second polarization, having been reflected by the second reflector, and provide the light toward the first direction so that a first image corresponding to the first light and a second image corresponding to the second light are projected on a common image plane where at least a portion of the second image is located between two portions of the first image.

The present disclosure provides an optical imaging apparatus, including: a first optical element including an image projection component and a first positioning component that are integrally formed, a second optical element including a beam splitting component and a second positioning component that are integrally formed, and a third optical element including a reflective component and a third positioning component that are integrally formed; structures of the first positioning component, the second positioning component, and the third positioning component cause the image projection component, the beam splitting component, and the reflective component achieve optical alignment according to desired optical accuracy index requirements. In the apparatus described above, respective elements are assembled based on their respective positioning components without aid of other components, which reduces difficulty of mounting among respective elements and simplifies the mounting process. Meanwhile, the positioning component in each element is integrated with other components, which further reduces the mounting error among the respective elements, thereby further improving mounting accuracy of the optical system.