659results about How to "Stable lighting" patented technology

Disclosed are a white light-emitting diode (LED) in which an emission layer comprising a red luminous body and a green luminous body is formed on a blue LED, and a preparation method thereof. The emission layer comprises both of at least one inorganic phosphor and at least one semiconductor nanocrystal. The white LED prepared according to the present invention has excellent color purity, high luminous efficiency and improved light stability so that it can be advantageously used as a light source for various display devices.

Projections / depressions forming a two-dimensional periodic structure are formed in a surface of a semiconductor multilayer film opposing the principal surface thereof, while a metal electrode with a high reflectivity is formed on the other surface. By using the diffracting effect of the two-dimensional periodic structure, the efficiency of light extraction from the surface formed with the projections / depressions can be improved. By reflecting light emitted toward the metal electrode to the surface formed with the projections / depressions by using the metal electrode with the high reflectivity, the foregoing effect achieved by the two-dimensional periodic structure can be multiplied.

There is provided an illumination device equipped with a light guide plate, a light source unit having a plurality of point like light sources for supplying light to the light guide plate and a light source holding member for holding the point like light sources, the light source unit being disposed to oppose an edge face of the light guide plate, and a housing for holding the light guide plate and the light source unit. The light source unit is constituted so as to be inserted in and extracted from the housing by a slide mechanism that can be slid along the edge face of the light guide plate, and the light source unit is equipped with a spacer for assuring a gap between the edge face of the light guide plate and the light sources at a slide insertion side end of the light source unit with respect to the housing when the light source unit is slidingly inserted in the housing.

An ultraviolet lamp, and an ultraviolet-shielding member that covers at least a part of an ultraviolet emission portion are provided. The ultraviolet-shielding member includes an ultraviolet non-transmissive and visible light transmissive portion that blocks or absorbs ultraviolet rays. Further, an air passage in which air around the ultraviolet emission portion is provided between the ultraviolet lamp and the ultraviolet-shielding member.

There are provided a phosphor which is a divalent europium-activated oxynitride phosphor substantially represented by General formula (A): EuaSibAlcOdNe, a divalent europium-activated oxynitride phosphor substantially represented by General formula (B): MIfEugSihAlkOmNn or a divalent europium-activated nitride phosphor substantially represented by General formula (C): (MIIl-pEup)MIIISiN3, having a reflectance of light emission in a longer wavelength region of visible light than a peak wavelength of 95% or larger, and a method of producing such phosphor; a nitride phosphor and an oxynitride phosphor which emit light efficiently and stably by the light having a wavelength ranging from 430 to 480 nm from a semiconductor light emitting device by means of a light emitting apparatus using such phosphor, and a producing method of such phosphor; and a light emitting apparatus having stable characteristics and realizing high efficiency.

A white light-emitting organic electroluminescent element is disclosed, containing a substrate having thereon: an anode; a cathode; and a plurality of light emitting layers between the anode and the cathode, wherein the plurality of light emitting layers contains: a first light emitting layer which emits a light having a predetermined wavelength; a second light emitting layer which is located at a nearer position to the anode than the first light emitting layer and emits a light having a complementary color to the light having the predetermined wavelength; and a third light emitting layer which is located at a nearer position to the cathode than the first light emitting layer and emits the light having the complementary color to the light having the predetermined wavelength.

The invention provides a design method for lighting backplanes of hard disks of multiple NVMe (non-volatile memory expresses), and belongs to the field of backplanes of hard disks of servers. The design method includes design steps of leading out a group of VPP (virtual pin ports) signal wires on each controller of a motherboard and transmitting the VPP signal wires to the backplanes via connectorsideband channels of each port; transmitting VPP addresses to backplane sides in a cyclic manner by the controllers and analyzing address information after data streams transmitted by the controllersare received by the backplane sides; transmitting hard disk lighting information of corresponding disk positions to the backplanes by the controllers if simulated VPP addresses of backplane channelsare identical to the addresses transmitted by the controllers; converting serial data streams on VPP into parallel signals by the backplanes, lighting backplane lamps of corresponding ports and uploading monitored hard disk in-place information to the controller. The design method has the advantages that the problem of incapability of normally lighting Locate lamps of existing backplanes of existing hard disks of existing NVMe can be solved by the aid of the design method, address wire information is added into connectors, and accordingly the multiple NVMe can be flexibly configured.

A safety light system is incorporated into the tailgate of a pickup truck. The safety light is incorporated into the tailgate and is illuminated when the tailgate is in a lowered or horizontal position and when either the ignition switch is in the on position, the parking lights are turned on, or both. The safety light can be positioned either on the top edge-rail of the tailgate, as a slide-out unit placed in a pocket with the top edge-rail of the tailgate, or as a rotating assembly incorporated into the outer sheet metal of the tailgate. Additional safety lights can be incorporated into the sides of the tailgate assembly. An optional feature includes the ability to pull the safety light out from the tailgate and secure the safety light to an object that extends beyond the length of the pickup bed. Alternatively, the safety lights can be installed in or on a bed extension apparatus. The safety light can additionally include the features of a standard taillight, comprising brake lights and or turn signal indicators. Alternates include reflective tape and a pullout feature from other locations. A pullout section can also provide a step for accessing the bed.

The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two characteristics. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition having a negative dielectric anisotropy that contains a specific compound having negatively large dielectric anisotropy as the first component, and has a specific two ring compound having a low viscosity as the second component, and provides a liquid crystal display device containing the composition.

A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having especially negatively large dielectric anisotropy as the first component,a specific bicyclic compound having a small viscosity as the second component, a specific compound having a high maximum temperature as the third component, a specific compound having a negatively large dielectric anisotropy, a low minimum temperature as the fourth component. The liquid crystal composition has a negative dielectric anisotropy. The liquid crystal display device contains the liquid crystal composition.

The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, a high stability to heat and a large elastic constant, or that is suitably balanced regarding at least two of the characteristics. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition that has a nematic phase and includes a four-ring compound containing a dioxane ring and having a high maximum temperature and a large dielectric anisotropy as a first component, a specific two-ring compound having a small viscosity as a second component, a specific three-ring compound having a large dielectric anisotropy as a third component and a specific four-ring compound having a high maximum temperature and a large dielectric anisotropy, and also provides a liquid crystal display device containing this composition.

Described is a liquid crystal composition which satisfies at least one of such characteristics as high upper limit temperature of the nematic phase, low lower limit temperature of the nematic phase, low viscosity, adequate optical anisotropy, large negative dielectric anisotropy, high resistivity, high stability to ultraviolet light and high stability to heat, or which has an adequate balance between at least two of the above-mentioned characteristics. Also described is an AM element having a short response time, high voltage holding ratio, high contrast ratio, long life and the like. The liquid crystal composition contains a specific compound having a large negative dielectric anisotropy and a low lower limit temperature as a first component, a specific compound having a low viscosity or a high upper limit temperature as a second component, and a specific compound having a polymerizable group as a third component. The AM element contains the composition.

A liquid crystal composition having a negative dielectric anisotropy that includes two components, wherein the first component is at least one compound selected from the group consisting of compounds represented by formula (1), and the second component is at least one compound selected from the group consisting of compounds represented by formula (2):wherein R1 and R2 are each independently selected from the group consisting of an alkyl having 1 to 12 carbons, an alkoxy having 1 to 12 carbons and an alkenyl having 2 to 12 carbons; R3 is selected from the group consisting of an alkyl having 1 to 12 carbons, an alkoxy having 1 to 12 carbons, an alkenyl having 2 to 12 carbons and an alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; Z1 is selected from the group consisting of a single bond, ethylene, carbonyloxy and methyleneoxy; X1 and X2 are each independently selected from the group consisting of fluorine and chlorine; and s is 0 or 1.

The invention discloses an electronic apparatus and a projector by use of two passages formed in a casing for two air-flows passing through, each of which is generated by at least fan. Heat-dissipation devices are disposed in the passages substantially evenly so as to dissipate the heat generated in operation by an optical module disposed in the casing by the air-flows. The purpose of efficient usage of the apparatus space is therefore achieved. For the basis of special heat-dissipation requirement and assembly design, one of the fans is disposed between two of the heat-dissipation devices so that the two heat-dissipation devices could obtain better heat-dissipation efficiency; further, there could be an open space disposed between two of the heat-dissipation devices and adjacent to a light source of the optical module for the installation of the light source and the following installation of the fan, so that the whole volume of the electronic apparatus or the projector could be further reduced.

A safety light system comprising a trailer hitch mounted configuration. The safety light system includes a safety light assembly receptacle carried by a trailer hitch mounting member. The safety light assembly receptacle includes a light assembly receiving cavity for receiving and temporarily retaining a removable light assembly. The removable light assembly includes elements to provide a user controlled continuous red light, a flashing red light, and a continuous white light. The flashing red light provides a roadside flare configuration. The continuous white light provides a flashlight configuration. The continuous red light in conjunction with the flashing red light configuration provides a driving light configuration. The removable light assembly can include a securing mechanism for attaching the removable light assembly to an object to warn others of the extended object and / or support legs enabling operation as a roadside flare, spotlight, and the like.

The invention is to provide a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having a large negative dielectric anisotropy as a first component and a specific two-ring compound having a large optical anisotropy and a low viscosity as a second component, and a liquid crystal display device contains the composition.

An object of the present invention is to provide soft capsule formulations of active vitamins D, well-suited to practical production with easy discrimination of active ingredient levels, in which stability of the active vitamins D3 to light and heat is ensured, and which material is highly safe to the human body. According to the present invention, soft capsule formulations of active vitamins D3 can be obtained-wherein the capsule shell contains a white pigment and yellow iron oxide and / or red iron oxide, or titanium oxide and caramel, or yellow iron oxide.

A liquid crystal composition having a nematic phase comprising two components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), and the second component is at least one compound selected from the group of compounds represented by formula (2), and the third component is at least one compound selected from the group of compounds represented by formula (3):wherein R1 and R2 are each independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine; ring A and ring B are each independently 1,4-cyclohexylene, 1,4-phenylene; 2-fluoro-1,4-phenylene or 2,6-difluoro-1,4-phenylene; and X1, X2, X3 and X4 are each independently hydrogen or fluorine.

Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of the nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The subject is also to provide the AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, and so forth.Means for Solving the Subject The invention provides a liquid crystal composition having a negatively dielectric anisotropy containing a specific compound having a negatively large dielectric anisotropy as a first component, and a specific compound having a negatively large dielectric anisotropy as a second component, and provides a liquid crystal display device containing this composition.

Providing a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of nematic phase, low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat, or having a suitable balance regarding at least two of the characteristics; and an AM device having short response time, large voltage holding ratio, large contrast ratio, long service life and so forth. The liquid crystal composition has a negative dielectric anisotropy and contains a specific two-ring compound having a low minimum temperature as a first component, a specific compound having a large negative dielectric anisotropy as a second component, a specific compound having a low viscosity as a third component, and a specific compound having a large negative dielectric anisotropy as a fourth component. The liquid crystal display device contains the composition.

Provided is a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or having a suitable balance regarding at least two of the characteristics. Also provided is an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having a polymerizable group as a first component, a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a second component, or a specific compound having a small viscosity or a large maximum temperature as a third component, and a liquid crystal display device contains the composition.

Subject The invention is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The invention is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Means for Solving the Subject A liquid crystal composition having a nematic phase and containing a specific compound having a large optical anisotropy and a large dielectric anisotropy as a first component, and a specific compound having a small viscosity as a second component, and a liquid crystal display device contains this composition.

A method for enhancing a sensitivity of an optical sensor having an optical cavity counter-propagates beams of pump light within the optical cavity to produce scattered light based on Stimulated Brullion Scattering (SBS). The properties of the pump light are selected to generate fast-light conditions for the scattered light, such that the scattered light includes counter-propagating beams of fast light. The method prevents the pump light from resonating within the optical cavity, while allowing the scattered light to resonate within the optical cavity. At least portions of the scattered light are interfered outside of the optical cavity to produce a beat note for a measurement of the optical sensor. The disclosed method is particularly applicable to optical gyroscopes.

A liquid crystal backlight device and a method for controlling the same are applied to a liquid crystal display apparatus, in which a backlight module is disposed behind a liquid crystal panel to illuminate the panel. The backlight device produces stable illumination to solve the hold type problem due to the hold-type effect of liquid crystal occurred in the prior art. The control method is used to acquire a stable display time from the liquid crystal characteristics and then process the scan signal to match the display data. Controls of the backlight activation signal, including on / off, time delay, and duty cycle adjustment, are then performed to generate a pulse-width modulated signal and a brightness modulated signal so as to produce stable backlight illumination effect. A better display effect can therefore be accomplished.

The invention provides a camera intelligent identification vehicle management access control system. The system comprises a central processing control system, a gate mechanism and a camera module, wherein the central processing control system is in wireless or wired connection with the gate mechanism and in signal connection with the camera module, and the camera module adopts two focusable multi-point-focusing camera lenses. The system has the benefits as follows: the two camera lenses both use infrared assisted light sources and have stable illumination, single light color and few noise waves, the problem of night identification is solved, and the identification quality and speed can be improved; the system has higher identification efficiency, has good anti-interference capacity when characters are stained moderately and is more convenient to implement; unmanned intelligent management is realized and human resources are saved; the working efficiency is substantially improved by the aid of a full-automatic working mode; the safety performance is substantially improved due to adoption of a biometric identification technology (face identification); convenient, rapid and safe passage treatment is enjoyed; the system adopts automatic charging and is convenient to use and low in cost.

The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The subject is to provide an AM device that has a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and so forth.The invention provides a liquid crystal composition having a negative dielectric anisotropy that contains a specific compound having a negatively large dielectric anisotropy as a first component, and a specific two-ring compound having a low viscosity as a second component, and provides a liquid crystal display device containing the composition.

A book light that is removably mounted to a book spine, has a flexible lamp support arm, and provides a rotational device that enables full 360 degree rotation of the lamp support arm about a longitudinal axis of the book spine such that a reader can comfortably hold and read a paperback book folded back upon itself with one hand, a page facing the reader is well illuminated, and subsequent pages can be illuminated by turning the folded book over to a new page and simply rotating the lamp support arm and lamp over the new reading page, all without having to remove and re-mount the book light from the book.

The present invention relates to a display comprising at least one substrate having at least one electrically modulated imaging layer thereon, at least one patterned electrically conductive layer, and at least one antistatic layer.