34results about How to "Increase lighting levels" patented technology

Endoscopic illumination and imaging systems for enabling observation of both the forward and rearward directions in a lumen using only a single imaging device. According to one implementation, the system utilizes the effects of a partially reflective mirror to respectively transmit and reflect light from the different portions of the lumen or cavity, and uses separate groups of illumination sources to illuminate one or the other section of the lumen, such that the illuminated section is preferentially imaged by virtue of its increased light level. In a second implementation, electrically switched mirrors are used, having properties switched between a transmissive and a partially reflective state, such that the mirror can be switched between imaging the regions forward of the camera when in a transmissive state, and imaging the regions rearward of the camera when in a reflective state. A mechanically swiveled mirror is described for the same purpose.

Provided is a resin composition for sealing an optical device that has favorable curability, exhibits excellent levels of heat resistance, ultraviolet light resistance, optical transparency, toughness and adhesion, and yields a cured product that enables an improvement in the light extraction efficiency from a semiconductor light emitting element at a high refractive index.The above resin composition for sealing an optical device comprises:(A) an organopolysiloxane with a polystyrene equivalent weight average molecular weight of at least 3×103, represented by an average composition formula:R1a(OX)bSiO(4−a−b) / 2 (wherein, each R1 represents, independently, an alkyl group of 1 to 6 carbon atoms, an alkenyl group of 2 to 6 carbon atoms, or an aryl group of 6 to 10 carbon atoms, each X represents, independently, a hydrogen atom, or an alkyl group, alkenyl group, alkoxyalkyl group or acyl group of 1 to 6 carbon atoms, a represents a number within a range from 1.00 to 1.5, and b represents a number that satisfies 0<b<2, provided that 1.00<a+b<2),(B) an aluminum chelate compound, and(C) fine particles of a metal oxide sol.

A light guide device for illumination, lighting and display purposes that exhibits an output light having a predetermined, and preferably uniform, angular luminance profile is described. The device comprises a light guide (13) suitable for guiding light coupled thereto and a plurality of extraction features (10, 11) located on one or more surfaces of the light guide. The plurality of extraction features comprises an interleaved pattern of first (11) and second extraction features the arrangement of which provides a means for defining the predetermined angular and spatial luminance profiles for the output light. The device allows for a uniform angular luminance profile to be produced that is maintained even when the light guide is curved or bent.

The present invention provides a hologram apparatus for recording interference fringes formed from reference light and signal light optically spatially modulated by a spatial light modulator on a hologram recording material or picking up an image of reproduction signal light produced by irradiating illumination reproduction light on the hologram recording material by means of an image pickup device to obtain a reproduction image signal. The hologram apparatus includes a matching data acquisition section, an arithmetic operation section, and a positioning control section. The matching data acquisition section directly picks up an image of the signal light optically spatially modulated with a pixel matching pattern displayed on the spatial light modulator by means of the image pickup device to obtain a reproduction image signal. The arithmetic operation section performs predetermined arithmetic operation using a luminance value of the reproduction image signal. The positioning control section moves a relative position between the image pickup device and the spatial light modulator in response to a result of the arithmetic operation of the arithmetic operation section.

Apparatus and method for using a light source having spatially separated light emitting areas emitting light at different wavelengths to incapacitate a subject by a pattern of temporal flashing and / or color flashing of the light source. Reflectors adapted for use with spatially separated light substrates provide for light concentration from lower powered optical sources.

A method of grinding a semiconductor nanocrystal-polymer composite, the method including obtaining a semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal and a first polymer, contacting the semiconductor nanocrystal-polymer composite with an inert organic solvent; and grinding the semiconductor nanocrystal-polymer composite in the presence of the inert organic solvent to grind the semiconductor nanocrystal-polymer composite.

This invention provides a method of face recognition and a device for implementing said method, the method comprising the steps of: (a) performing a face recognition algorithm on an image of a user to determine an identity of the user, the image having an illumination level; (b) determining if a reliability measurement of the identity of the user determined by the face recognition algorithm meets a threshold indicating reliable identification and, if the reliability measurement is below the threshold indicating reliable identification; (c) receiving a new image of the user, the new image having an adjusted illumination level; and (d) performing a further face recognition algorithm on the new image of the user to determine the identity of the user.

Described is a dynamic emergency exit sign comprising one or more pictograms and at least one light source for accentuating one or more of the one or more pictograms either singly or in combination, wherein at least one light source is controlled by signals from evacuation computer modelling software to assist occupants egress in emergency or other critical situations.

The invention discloses a motor winding detection device for a large workshop inspector. The motor winding detection device includes a box body, a mini camera and a wireless transmission device. The box body is in rotary connection with a box cover, and the outer wall of the box body is connected with a handle. A storage tank is located below a liquid crystal display screen, and a detection device is arranged in the storage tank. The tail end of the detection device is internally movably connected with a pull bar, an LED lamp switch is embedded in the outer wall of the tail end of the detection device, and an LED lamp bead is arranged on the head end of the detection device. The LED lamp bead and the LED lamp switch are electrically connected. A magnifying glass sheet is embedded in the outer wall on the top of the head end of the detection device. The mini camera is mounted on the bottom of the head end of the detection device, and the wireless transmission device is installed at the bottom of the mini camera. The box body and the box cover of the motor winding detection device are in a suitcase structure as a whole after being integrated. The whole device is easy to carry for an inspector walking in a large workshop and is more convenient for use.

The invention discloses a rope arrangement fault detection method and device based on laser ranging. The method includes step 1, rotating a rotary table to enable a laser sensor to scan the whole ropearrangement area on the surface of the winding drum along the length direction of the winding drum, and acquiring the position parameters of the scanning points in the rope arrangement area under a two-dimensional coordinate system; step 2, sequentially selecting the characteristic point on each winding rope in the rope arrangement area along the length direction of the winding drum, and acquiring two-dimensional coordinates of each characteristic point according to the position parameters of each scanning point; step 3, calculating the number of layers of the winding ropes of each characteristic point according to the obtained two-dimensional coordinates of each characteristic point according to the corresponding relation between the rope winding layer number of the characteristic pointand the Y-axis coordinate of the characteristic point; step 4, calculating the layer number characteristic value y3 according to the obtained number of layers of the winding ropes of each characteristic point (J); and step 5, obtaining a fault conclusion according to the calculated layer number characteristic value y3 (j). According to the method, the conclusion that whether a fault occurs or notcan be accurately obtained, and the rope skipping fault or the rope clamping fault is obtained is obtained.

The invention provides an environment-friendly PVC (Polyvinyl Chloride) foaming ceiling panel and a preparation method thereof. The environment-friendly PVC foaming ceiling panel comprises the following components in parts by weight: 90-110 parts of PVC resin, 5-10 parts of polylactic acid, 7-12 parts of polycaprolactone, 10-20 parts of polyester fiber, 50-70 parts of barium sulfate, 3-7 parts of plasticizer, 5-11 parts of stabilizer, 1.7-5 parts of titanium dioxide, 0.6-2 parts of PE (Poly Ethylene) wax, 2-5.5 of processing modifier, 1.4-3.2 parts of anti-impact modifier, 0.7-1.5 parts of composite foaming agent and 20-30 parts of sepiolite. The environment-friendly PVC foaming ceiling panel provided by the invention has the characteristics of environmental friendliness, good weather fastness, high fire resistance, strong scratch resistance, sound insulation, thermal insulation, dust prevention, noise absorption, insect prevention and light reflection and is very suitable for serving as an indoor ceiling.

The invention discloses a motor winding detection device for a large workshop inspector. The motor winding detection device includes a box body, a mini camera and a wireless transmission device. The box body is in rotary connection with a box cover, and the outer wall of the box body is connected with a handle. A storage tank is located below a liquid crystal display screen, and a detection device is arranged in the storage tank. The tail end of the detection device is internally movably connected with a pull bar, an LED lamp switch is embedded in the outer wall of the tail end of the detection device, and an LED lamp bead is arranged on the head end of the detection device. The LED lamp bead and the LED lamp switch are electrically connected. A magnifying glass sheet is embedded in the outer wall on the top of the head end of the detection device. The mini camera is mounted on the bottom of the head end of the detection device, and the wireless transmission device is installed at the bottom of the mini camera. The box body and the box cover of the motor winding detection device are in a suitcase structure as a whole after being integrated. The whole device is easy to carry for an inspector walking in a large workshop and is more convenient for use.

A method of grinding a semiconductor nanocrystal-polymer composite, the method including obtaining a semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal and a first polymer, contacting the semiconductor nanocrystal-polymer composite with an inert organic solvent; and grinding the semiconductor nanocrystal-polymer composite in the presence of the inert organic solvent to grind the semiconductor nanocrystal-polymer composite.