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7 results about "Prismatic surface" patented technology

A prismatic surface is a surface generated by all the lines that are parallel to a given line and intersect a broken line that is not in the same plane as the given line. The broken line is the directrix of the surface; the parallel lines are its generators (or elements). If the broken line is closed (i.e., a closed polygon), then the surface is a closed prismatic surface.

Illuminable glazing element with dichroic coupling-in element

The invention relates to an illuminable glazing element (101), comprising: an optical waveguide (1) having a first and a second surface (I, II), a light coupling-in element (100) arranged on the first surface (I) of the optical waveguide (1), comprising a prismatic film (2) with at least one prismatic surface (2.1, 2.2) which has a plurality of inclined surfaces (F), and a dichroic reflection layer (3) which is applied to the prismatic surface (2.1, 2.2), and a light source (6) for visible light (5), which is arranged facing the second surface (II) of the optical waveguide (1), wherein the light source (6) is oriented such that, during operation, it irradiates the light coupling-in element (100) with light (5) and the emitted light (5) is at least partially coupled into the optical waveguide (1) by way of reflection at the dichroic reflection layer (3).
Owner:SAINT GOBAIN SEKURIT FRANCE

Slow-light Prism Enhanced Spectroscopy (SLOPES)

PendingUS20260185936A1SpectroscopyPrism
Slow-light prism enhanced spectroscopy (SLOPES) is described. In one embodiment, a method for characterizing spectral properties of a sample includes illuminating a material sample by a tunable source of light. In response to illuminating the material sample, scattered light is produced, where the scattered light embodies spectral properties of the sample. Method also includes, passing the scattered light through a vapor prism cell. The vapor prism cell includes prismatic surfaces in a path of the scattered light. The vapor prism cell contains gas that is configured to selectively slow down propagation velocities at different spectral features of the scattered light and to disperse different spectral features of the scattered light at separate angles. The method also includes acquiring signals corresponding to time-gated spectral properties of the scattered light after propagating through the vapor prism cell. The acquired signals are discriminated in time based on acquired signals' time-gated properties and in space based on acquired signals' dispersion angle and subsequent location on an acquisition plane. Spectral features of the scattered light are determined based on the acquired signals.
Owner:TEXAS A&M UNIVERSITY

Electromagnetic shielding mechanism for a pulsed electromagnetic coagulation water purification device

The utility model discloses a kind of electromagnetic shielding mechanism of pulse electromagnetic co-shock water purifying device, pulse electromagnetic co-shock chamber is enclosed by outer box, the outer box is octagonal prism, each prism surface of the outer box is correspondingly provided with electromagnetic shielding plate group, the electromagnetic shielding plate group includes first shielding plate, second shielding plate, third shielding plate, connecting bolt, the second shielding plate is located between the first shielding plate and the third shielding plate, the connecting bolt is sequentially worn first shielding plate, second shielding plate and third shielding plate.The utility model can carry out electromagnetic shielding to pulse electromagnetic co-shock chamber inside pulse transmitter, so that pulse electromagnetic co-shock water purifying device is more safe in use.
Owner:GUANGDONG MIAODAO INTELLIGENT TECHNOLOGY CO LTD

Peep-proof light guide plate and preparation method thereof

The invention relates to the technical field of light guide plates, in particular to a peep-proof light guide plate and a preparation method thereof.The lattice point face of the light guide plate is provided with two or more triangular prism microstructures, intervals are arranged between the triangular prism microstructures, and the prism faces of the triangular prism microstructures are perpendicular to a light incident face; the light-emitting surface of the light guide plate is provided with continuous columnar curved surface structures, and the continuous columnar curved surface structures are arranged in a high-low shape. The light propagation direction in the light guide plate is regulated and controlled through the unique triangular prism lattice point structure of the light guide plate, stray light is shrunk through the continuous prism curved surface light control microstructures on the light emitting surface, emergent light is gathered in a very small visual angle range, and collimation control over the emergent light is achieved by adjusting the inclination angle of the triangular prism lattice points. Therefore, the peep-proof function is realized.
Owner:BOSON OPTOELECTRONICS TECH(HEFEI) CO LTD

Light source module with adaptive illumination

The present disclosure relates to light source modules with adaptive illumination. Various embodiments disclosed herein include adaptive light source modules that can provide adaptive illumination to a scene. These adaptive light source modules can include a housing, an emitter array, and a lens. The emitter array includes a plurality of emitters. The lens can redirect light emitted from the emitter array through a transparent window of the housing. The housing can also include a prismatic surface that distorts light emitted from the emitter array and / or one or more opaque portions that limit light from passing therethrough. The adaptive light source module can optionally include a light sensor, and a portion of the lens can be configured to direct light toward the light sensor.
Owner:APPLE INC

Machining method for improving precision of triangular prism surface

The invention discloses a machining method for improving the precision of a triangular prism surface, which comprises the following steps of: establishing a three-dimensional model, importing the three-dimensional model into UG software, setting cutter parameters in an equal-height finish machining mode, then respectively setting rough and finish milling parameters, and exporting a rough milling program and a finish milling program. And in the finish-milling procedure, the smooth surface is milled at uniform acceleration, the speed is uniformly reduced when the cutter is fed to the ridge surface, and the cutter passes through the smooth surface at uniform acceleration after passing through the ridge surface, and the steps are repeated in sequence until a circle of triangular prism surface is machined. The precision and the surface quality of the triangular prism surface are improved, the machining efficiency is higher, and production is convenient.
Owner:CHONGQING JIANGJIN SHIPBUILDING IND