A holographic sight comprises a unitary optical component carrier. The unitary optical component carrier may comprise a body with a first receptacle configured to receive a laser diode, a second receptacle configured to receive a mirror, a third receptacle configured to receive a collimating optic, a fourth receptacle configured to receive a grating, and a fifth receptacle configured to receive an image hologram. A laser diode may be received within opposing walls formed by the first receptacle. A mirror may be received in, and abut one or more surfaces of the second receptacle. A collimating optic may be received in, and abut one or more surfaces of the third receptacle. A grating may be received in, and abut one or more surfaces of the fourth receptacle. A hologram image may be received in, and abut one or more surfaces of the fifth receptacle.

A method for presenting a mapping pseudo-hologram using individual video signal output of a real-time engine according to an embodiment of the present disclosure includes: (a) creating a partial viewpoint video including a character of a virtual reality content corresponding to a first user through a camera positioned at any one point in the virtual reality content; (b) creating a hologram video including at least one of objects around the character in the partial viewpoint video; and (c) projecting the hologram video onto a hologram screen placed between the first user and a second user different from the first user, and in the process (c), the hologram video is projected to be overlaid on the first user when the second user sees the first user.

The invention discloses an optical system for generating arbitrary-order optical vortex arrays and finite optical lattices with defects, comprising a laser, a collimating and beam-expanding system, a spatial light modulator, a 4-f lens system, and an image detector which are disposed according to a light path. After passing through the collimating and beam-expanding system, the linearly-polarized Gaussian beam emitted by the laser is radiated to the spatial light modulator to be modulated in complex amplitude; the first-order diffraction beam of the emergent light generates an arbitrary-order alternating optical vortex array on the back focal plane of the first 2-f lens system, and an adjustable finite optical lattice with defects on the back focal plane of the second 2-f lens system. The topological charge value of each vortex and the spacing between vortices, in the generated arbitrary-order alternating optical vortex array, can be precisely controlled.

An advance in high-resolution optical metrology has been achieved by the introduction of incoherent holographic imaging. FINCH, an example of incoherent holography, is shown to simplify the process, eliminating many steps in metrology and at the same time increasing throughput, resolution and accuracy of the method. A proposed technique requires only a single image capture with a non-moving camera rather than the capture of multiple stacks of images requiring many camera exposures and movement of the camera or sample in the conventional techniques.

Vehicle mountable holographic promoting system and method of use; system includes a body with light, mount, and controller in communication with a software application and the body. The body is mountable to the vehicle using mount. Mount can be removably attachable or otherwise secured to the roof of the vehicle. The controller controls the body such that the body can visually promote via an image display an item using the light—display region appearing to float on a plane above vehicle.

An optical device with ordered scatterer arrays for secure identity and a method of producing the same

This invention discloses a method for configurable spatial control and modification of optically active resonantly coupled scatterer arrays to produce identifiable security features and a corresponding photonic secure identity device. The invention comprises at least the steps of (i) producing a deposition template from said master stamp, (ii) synthesis of a plasmonic particle colloid, (iii) producing an optically active, two-dimensional security tag template using self-assembly of said particles on said deposition template, (iv) producing a customized secure identity device from said security tag template by selective removal or modification of optical properties using ultrashort laser pulses. The produced customized plasmonic-photonic device can then be used as secure identity and anti-counterfeiting means. The device exploits customized spatial control and modification of optically active plasmonic particle arrays demonstrating surface lattice resonance optical signature to produce easily identifiable security features.

A computer generates digital output by identifying, a digital display surface. The computer identifies a tool selected from a list of geometric shape drawing tools. The computer, in response to the tool identification, generates by a projector, a holographic model of the selected tool including interaction points into an interaction zone near the display surface. The computer receives a feed from a sensor associated with the interaction zone and identifies an interaction motion associated with an interaction point. The computer adjusts a model location, a model orientation, or a model size based on the interaction motion. The computer, in response to determining an interaction point is making virtual contact with the display surface, generates digital output on surface near the interaction point. The digital output corresponds, at least in part, to a predetermined shape associated with the selected tool.

A holographic security or identification device (10) comprises an object, or a flexible substrate (12) configured to be conformable to a desired, curved shape; and a plurality of structures (14) formed on or in the object to have a desired curved configuration, or formed in or associated with the substrate and arranged to adopt a desired curved configuration when the substrate is conformed to a desired shape, wherein the plurality of structures (14) are configured to receive light (20) of a selected at least one wavelength or range of wavelengths and to produce, using the received light, a desired holographic image (22) for security or identification purposes when in the desired configuration.

Disclosed is a method and associated apparatus for measuring a characteristic of interest relating to a structure on a substrate. The method comprises calculating a value for the characteristic of interest directly from the effect of the characteristic of interest on at least the phase of illuminating radiation when scattered by the structure, subsequent to illuminating said structure with said illuminating radiation.

Methods, apparatus, devices, and systems for displaying three-dimensional objects by individually diffracting different colors of light are provided. In one aspect, an optical device includes: a first optically diffractive component including a first diffractive structure configured to diffract a first color of light having a first incident angle at a first diffracted angle, a second optically diffractive component including a second diffractive structure configured to diffract a second color of light having a second incident angle at a second diffracted angle, a first reflective layer configured to totally reflect the first color of light having the first incident angle and transmit the second color of light, and a second reflective layer configured to totally reflect the second color of light having the second incident angle. The first reflective layer is between the first and second diffractive structures, and the second diffractive structure is between the first and second reflective layers.