62results about How to "Good light source" patented technology

A light emitting device comprises two light-emitting diode (LED) groups, a group of luminophor layers, and an input terminal. The first LED group includes at least one blue LED emitting light having a dominant wavelength in a range between 400 nm and 480 nm, and the second LED group includes at least one red-orange LED emitting light having a dominant wavelength in a range between 610 nm and 630 nm. The group of luminophor layers, which are selected from one of silicates, nitrides, and nitrogen oxides, are positioned above the first LED group and partially converts the light emitted by the first LED group into light having a dominant wavelength in a range between 500 nm and 555 nm. The input terminal is connected to the two LED groups for providing desired electric energy thereto.

A combination for use in aligning a substantial point source of light with respect to an axis of a reflector is provided. The combination includes a reflector, a lamp bulb having a substantial point source of light, and a movable lamp bulb holder. The movable holder may be moved using an actuating member. The reflector has a first open end for emitting a light beam, a second end and an axis extending between the first and second reflector ends. The lamp bulb is secured to the movable holder and is disposed about the second end of the reflector. The actuating member is operatively coupled to the movable holder at an actuation interface for moving the substantial point source of light relative to the axis of the reflector and aligning the substantial point source of light with the reflector axis and the focal point of the reflector. Flashlights employing the combination are provided.

A headlight for a motor vehicle designed to fulfil several functions, in particular a dual functions, one of the functions corresponding to a beam with cut-off, comprising: a light source, a main elliptical reflector having a scalloped part and an optical axis; a main lens disposed in front of the main elliptical reflector; a retractable shield able to occupy at least one active position for the cut-off beam and a retracted position for another type of beam; a secondary elliptical reflector coupled to the scalloped part of the main elliptical reflector and having a optical axis inclined with respect to that of the main reflector; and an additional lens disposed in front of the secondary elliptical reflector having an optical axis essentially parallel to that of the main lens.

A side-emitting solid-state semiconductor light emitting device (light emitting diode) comprises a light emitting diode package and a lens, wherein the lens is mounted on the front surface of the light emitting diode package to receive the light emitted from the light emitting diode and redirect the received light by use of a reflecting part to project the light on the peripheral surface of the light emitting diode package. This peripheral surface is designed to provide various changes and the side-emitting light is changed according to the changes of the peripheral surface.

The invention relates to an apparatus for transmissively reading out holograms generated by writing light in an optical medium, in particular holograms generated in an optically addressable spatial light modulation device. For this purpose, the apparatus comprises an illumination device for emitting light and an optical system for directing the light from the illumination device onto the optical medium. In this case, the optical system is arranged in the beam path of the writing light.

A lighting unit having a battery-powered auxiliary light source that is automatically powered in the event of a power outage. The lighting unit can be an integral portion of a lamp, configured as an add-on to an existing lamp, or configured as a standalone light source. The lighting unit includes a device for rectifying AC power supplied to the unit to generate DC power, a battery and a device for charging the battery from the AC power, a relay powered by the DC power and with input contacts electrically connected to the battery, and at least one LED light source electrically connected to output contacts of the relay. The relay is configured so that it interrupts current flow from the battery to the LED light source when the DC power is supplied to the relay as a result of AC power being supplied to the rectifying device, and the relay automatically enables current flow from the battery to the LED light source when the DC power to the relay is interrupted as a result of AC power to the rectifying device being interrupted.

A method for manufacturing a light emitting device, having; a die bonding step of mounting a light emitting element on a board; a phosphor layer formation step of forming a phosphor layer that contains a phosphor by spraying on surfaces of the board and the light emitting element after the die bonding step; and a cover layer formation step of forming a cover layer that contains at least one type of light reflecting material and light blocking material on a surface of the phosphor layer over the board.

The invention relates to a multifunctional intelligent posture correcting desk and chair, which is used for correcting sitting posture, reaches standard in sitting distance and viewing distance, precludes long-time sitting, guarantees light source standard, power utilization safety and more reasonable reading angles and assists comfort. A sitting posture fixing system is installed on the chair back of the desk and chair, distance adjustment systems are installed among bottoms of the desk and chair legs, an intelligent controlled forced long-time sitting reminding system is installed on right side of a desktop, a light sensing intelligent controlled illuminating system is installed in the middle of a desktop stationery rack, a safety electric shock prevention system is installed in the middle of the right outer side of the desk leg, an adjusting vertical angle reading plate system and an adjusting caster angle lying chair system are embedded on the surface, close to a person, in the middle of a desktop plate, and a resting system is installed in the middle of a connecting rod on the right legs of the desk. Particularly, after combined application, the desk and chair can comprehensively guarantee physical health.

The invention relates to a double-functional hydrogel polymer composite material as well as a preparation method and application of the double-functional hydrogel polymer composite material. More specifically, the double-functional hydrogel polymer composite material provided by the invention is prepared from a chitosan hydrogel polymer, transition metal ions and a compound with a formula (I), wherein a ring A represents C6 to C14 alkyl; R1 and R2 independently represent hydrogen, or linear-chain or branch-chain (C1 to C30) alkyl with a terminal group substituted by amino or not; a precondition is that NR1R2 has at least one NH2 terminal group. The double-functional hydrogel polymer composite material provided by the invention has the characteristics of high light intensity and long-time continuous light emitting in the presence of an oxidant, can be used as a light source and can be used for a biosensor, molecule microscope imaging, cell microscope imaging or biological sample analysis. (The formula (I) is shown in the description.).

A composite optical element is provided. The composite optical element includes a plurality of optical elements, in which at least one of the optical elements is formed of an element modifying an optical path and the other optical elements are bonded to an incident surface and/or exit surface of the element modifying the optical path with a low refractive index material layer in between.

A light source cooling body (100), a light source assembly, a luminaire and a method to manufacture a light source cooling body or a light source assembly are provided. The light source cooling body comprises a homogeneous body (104) made of a thermally conductive material. The homogenous body comprises an open space that comprises a wick structure, a condenser (112) and an evaporator (116). Near the evaporator the light source cooling body has an interface area (102) to thermally couple with a light source and to receive heat from the light source. The condenser is arranged away from the interface area. A portion 114 of the open space is tubular shaped. The open space may hold a cooling liquid partially in the gaseous phase and partially in the liquid phase and the wick structure is configured to transport the cooling material in the liquid phase towards the evaporator.

The present invention relates to a composite structure for polygonal LED, enabling operation to be carried out using a transformer to control a LED (light-emitting diode) module assembly. The LED module assembly is mainly assembled from a plurality of polygonal LED modules, in which the lengths of the sides of the LED modules enable corresponding combination thereof, thereby enabling the LED modules to be mutually connected together from any one of the sides. Accordingly, the user is able to carry out assembly or fixedly joining together of the LED modules according to needs or preference, thereby achieving advancement in a LED module assembly providing high expansionability, high luminance, superior area light source, low cost and the ability to be controlled using one transformer.

An optical fingerprint authentication device includes at least a light source and an image sensor and detects diffused light. The light source is an organic electroluminescence panel. The organic electroluminescence panel comprises a light emitting portion region and a light-transmitting non-light emitting portion, the light emitting portion region being shaped by an organic electroluminescence element. A fingerprint information reader having the image sensor arranged at a position adjacent to the non-light emitting portion is provided.

The invention provides a UV (ultraviolet) ink curing device which comprises a curing box, an aluminum substrate, a driving motor, a compressor and a lifting rod. The curing box is provided with a cylindrical box body, a groove is peripherally formed in the inner wall of the box body higher than an opening along the inner wall of the box body, the aluminum substrate is slidably assembled in the groove, a plurality of LED (light-emitting diode) bulbs are arranged on the surface of the aluminum substrate facing to the bottom of the box body in a surrounding manner, the driving motor is arranged at the top of the inner wall of the box body and drives the aluminum substrate to rotate, the compressor is arranged on one side of the box body, an air ejector pipe is fixedly arranged on the inner wall of the box body higher than the aluminum substrate, the compressor is connected with the air ejector pipe through a vortex tube, a platform is arranged in the box body, and the lifting rod is hinged to the bottom surface of the platform. According to the device, an object needing to be cured is placed on the platform, a suitable height is adjusted, rotatable surrounding LED lamp groups irradiate, so that emitted light sources are more uniform, the LED bulbs are cooled by cold air, and the device is applicable to long-time working.

A light emitting diode light strip unit structure is provided. The light emitting diode light strip unit structure includes an illuminating light strip unit which can be connected with an external power source and receive an external control signal independently as a light source. A plurality of illuminating light strip units are assembled and electrically connected with each other. Power supply voltage contacts and working voltage contacts of the illuminating light strip units are electrically connected with the power source to get working electricity. When grounding contacts of the illuminating light strip units complete the ground connection, signal output contacts and signal input contacts of the illuminating light strip units are electrically connected. One of the signal input contacts of the illuminating light strip units is predetermined to receive the control signal to form various types or forms (area) of light sources.

The invention describes a heating system (10) for heating a preform (20) and a corresponding method. The preform has a neck (22), at least one sidewall (24) and a bottom (26). The heating system (10) comprises a transporting system comprising a holding device (70) to hold at least one preform (20) preferably at the neck (22) of the preform (20), the transporting system being adapted to transport the preform (20) within the heating system (10). The heating system further comprises a light providing arrangement, with at least one laser radiation generation unit (30) for heating the sidewalls of the preform (24), and a lighting equipment for directly heating the bottom of the preform (26). The heating system(10) enables an improved heating of the bottom of the preform (26) enhancing the flexibility of PET bottle blowing.