An infrared imaging system includes a phase grating overlying a two-dimensional array of thermally sensitive pixels. The phase grating comprises a two-dimensional array of identical subgratings that define a system of Cartesian coordinates. The subgrating and pixel arrays are sized and oriented such that the pixels are evenly distributed with respect to the row and column intersections of the subgratings. The location of each pixel thus maps to a unique location beneath a virtual archetypical subgrating.

Various embodiments disclosed relate to photopolymerizable compositions that are suitable for making three-dimensional structures when exposed to laser light.

Techniques related to generating holographic images for a holographic heads up display are discussed. Such techniques include application of a machine learning model to the target image to generate data that is used to enable the determination of a phase pattern via an iterative propagation feedback model. The iterative propagation feedback model is used to generate a feedback strength value, which is then used to generate a phase diffraction pattern for presentation at a holographic plane of the heads up display.

The present disclosure discloses a hologram recording device and a hologram recording method. The hologram recording device comprises an object imaging unit comprising a cavity for accommodating an object whose interior wall is a reflective surface, and a light modulating unit configured to produce incident light and reference light interfering with the incident light and to direct the incident light to the object imaging unit. The cavity is provided with an imaging aperture for imaging of the object and at least one light incidence aperture for allowing the incident light to enter the cavity and irradiate on the object, such that an image of the object is formed at a location corresponding to the imaging aperture outside the cavity, and image light produced upon the imaging of the object interferes with the reference light at the location for recording of an image surface hologram.

A method of analyzing a sample receiving a particle of interest, including: defining a reference point located on a first interface of the sample, or at a known distance from the sample, along the optical axis of the optical system; acquiring a reference image transmission of the sample, the object plane of the optical system being located at a known distance from the reference point along an axis parallel to the optical axis of the optical system, and the particle of interest being located outside of the object plane; using the reference image, digitally constructing a series of reconstructed images, each associated with a predetermined offset of the object plane along the optical axis of the optical system; and using the series of reconstructed images, determining the distance along an axis parallel to the optical axis of the optical system, between the particle of interest and the reference point.

A holographic image recording method is disclosed, that is realized through utilizing a holographic image fetching and recording device, including the following steps: using an image fetching device to fetch an image of a target object placed on a rotation table rotating at a fixed speed, the image thus obtained is transmitted to a display panel through a connection line; using a light emitting unit to emit coherent light to a first reflector; that reflects the coherent light to light splitter; and the light splitter splits the coherent light along a first light path and a second light path into an object light and a reference light, and transmits them onto a holographic film to interfere with each other, to form a holographic image. A holographic image reconstructing method is also disclosed, to reconstruct and form a 3D holographic image floating above the holographic film.

An illumination unit emits illumination light to a specimen. An image sensor includes multiple pixels arranged in a two-dimensional manner on a photoelectric surface. The image sensor captures an image of a magnitude distribution of an interference pattern formed due to the illumination light that has interacted with the specimen. A limiter limits at least one from among the spatial frequency of the interference pattern formed on the photoelectric surface and the incident angle of the light input to the photoelectric surface.

In one embodiment, a self-interference incoherent digital holography system including a light sensor and a diffractive filter configured to receive light from an object to be holographically imaged and generate holographic interference patterns on the light sensor. A self-interference incoherent digital holography system comprising: a light sensor; and a diffractive filter configured to receive light from an object to be holographically imaged and generate holographic interference patterns on the sensor.

The present invention relates to an improved method for determining the identity of a biomolecule using interferometric light scattering apparatus, notably distinguishing between variants of biomolecules, such as viral serotypes and the like. Such a method has potential to simplify the testing for biological manufacture and for diagnosing disease, monitoring environmental issues and determination of contaminants.

Holographic operation equipment, including: a holographic image generating device configured to generate holographic image information including an operated object; an operation device configured to operate the operated object; an image transmitting device configured to transmit the holographic image information; and an information receiving device configured to receive a control signal and send the control signal to the operation device to control the operation of the operation device. The operation error resulted in panel displaying can be reduced. A holographic control equipment, a holographic operation method, a holographic control method and a telemedicine system are further provided.