87 results about "Stack light" patented technology

A two-dimensional LD (laser diode) array light-emitting device constituted by stacking light-emitting units each having a LD bar and a cooling assembly for cooling the LD bar with a simplified electrical connection structure to reduce manufacturing cost. The cooling assembly is electrically connected with one electrode of the LD bar through the die spacer so that a part of the cooling assembly serves as one electrode of the light-emitting unit. The other electrode of the LD bar is electrically connected with a webbed extending section of a conductive layer of a TAB (tape-automated bonding) sheet so that the conductive layer serves as the other electrode of the light-emitting unit. A space between the adjacent cooling assemblies for arranging the LD bar is adjusted by the spacer sheet intervened between the TAB sheet and the cooling assembly.

The present invention provides a stacked LED array structure, comprising a substrate and a plurality of LED dies stacked on the substrate in turn. Each LED die comprises a first semiconductor layer and a second semiconductor layer. The first semiconductor layer is provided thereon with a first electrode and stacked with the second semiconductor layer, while the second semiconductor layer is provided thereon with a second electrode and stacked with the first semiconductor layer of another LED die. The second electrode of each LED die is connected to the first electrode of another LED die in series via a metal layer to from an LED array. A plurality of LED dies may be stacked to be an LED array in a stacked manner, resulting in not only easy manufacturing, but also an effectively reduced volume for arranging the whole LED array.

A light tower or stack light including an exterior which has a cylindrical or columnar configuration including transparent or translucent panels or lenses, and a interior based on a flat, planar arrangement of light sources. The light tower translates the flat, essentially unidirectional or bidirectional arrangement of lights to a 180 to 360 degree, multidirectional light source. The light indicator tower is for use with a industrial apparatus or process to indicate the status of the apparatus or process. The tower includes a flat, planar, PCB light panel having two sides, the light panel further having a plurality of LED light sources disposed on each side of the light panel. The tower has a curvilinear light dispersing lens disposed to disperse light over a range of 360 degrees.

A power converter is introduced into a stack light in the form of a compatible modular element that fits between the base and a light module. By converting multiple input voltages to a common core voltage in a module distinct from the base and light modules, proliferation of different varieties of base modules and light modules may be reduced without impact on customer selection.

A stacked organic light-emitting device is provided. The stacked organic light-emitting device includes a first electrode, first and second light-emitting units formed under and on the first electrode respectively, transparent or semi-transparent second and third electrodes formed under the first light-emitting unit and on the second light-emitting unit respectively, and having the same polarity, and a drive controller electrically connected with the first, second and third electrodes to connect the first and second light-emitting units in parallel, and capable of controlling at least one of the first and second light-emitting units to emit light. Accordingly, the organic light-emitting device has a lower driving voltage than a conventional stacked light-emitting device in which light-emitting units are serially connected.

Disclosed is a light emitting device having vertically stacked light emitting diodes. It comprises a lower semiconductor layer of a first conductive type positioned on a substrate, a semiconductor layer of a second conductive type on the lower semiconductor layer of a first conductive type, and an upper semiconductor layer of a first conductive type on the semiconductor layer of a second conductive type. Furthermore, a lower active layer is interposed between the lower semiconductor layer of a first conductive type and the semiconductor layer of a second conductive type, and an upper active layer is interposed between the semiconductor layer of a second conductive type and the upper semiconductor layer of a first conductive type. Accordingly, there is provided a light emitting device having a structure in which a lower light emitting diode comprising the lower active layer and an upper light emitting diode comprising the upper active layer are vertically stacked. Therefore, light output per unit area of the light emitting device is enhanced as compared with a conventional light emitting device, and thus, a chip area of the light emitting device needed to obtain the same light output as the conventional light emitting device can be reduced.

The present invention provides a stack type organic electroluminescence display apparatus which can be structured to be an active matrix type. The organic electroluminescence display apparatus of the active-matrix driving system includes: a display region having a plurality of pixels each of which includes at least two subpixels, wherein the subpixels have three or more light-emitting devices stacked thereon each of which is configured by sandwiching between electrodes an organic layer including an emission layer, and any of the emission layers emits a light of different colors from each other and is commonly formed in all pixels; and a circuit for applying voltage to between the electrodes of the light-emitting device, wherein at least one light-emitting device among the stacked light-emitting devices is nonemission-treated.

A patterned substrate is provided, including: a substrate having a (0001) crystal plane and a plurality of alternatively arranged recess structures therein, thereby forming a plurality of alternatively arranged top surfaces; and a dielectric barrier layer covering the bottom surface and/or the sidewalls of the recess structures. Each of the alternatively arranged recess structures includes a bottom surface and a plurality of sidewalls surrounding the bottom surface.

A system for providing a backlight module has a light guide plate and at least a light source set positioned adjacent to the incident surface. The light source set contains a plurality of light sources stacking along a direction parallel with the incident surface of the light guide plate.

A stacked light emitting diode structure includes a light emitting chip fixed at a stand and stacked thereon with one or more than one smaller light emitting chip. Wherein, the light emitting chips have different illumination wavelengths. The invention is characterized that, a lower-layer light emitting chip is a light-transmissive or opaque chip, a second or a third light emitting chip stacked thereon is necessarily a light-transmissive chip, and between the stacked chips is a light-transmissive insulating material for fixing the chips. When putting the aforesaid structure to use, efficacies as better blended light effects and intensity as well as a reduced occupied area are obtained.

A driving method of a stacked light modulating device for recording an image therein, which includes selective reflection layers each having a cholesteric liquid crystal, reflecting light with different wavelengths within a visible range, and being different in a lower threshold value of texture change from a planar to a focal conic texture with respect to an externally applied voltage and an upper threshold value of texture change from the focal conic to a homeotropic texture, and a pair of electrodes disposed outside, includes applying between the pair of electrodes voltages including a voltage V1 and have a same frequency, to select an area exceeding or not exceeding the upper threshold value in each of the selective reflection layers, and applying voltages including a voltage V2 and have a same frequency different from the voltage V1, to select an area exceeding or not exceeding the lower threshold value.

An optical gyroscope (100) has a detection light guide body (100S) and a light measuring board (140). The detection light guide body (100S) is formed by stacking light guide layers (110, 120) and protective layers (130) alternately. An eddy-shaped light guide path section is provided in each of the light guide layers (110, 120), and the light guide path sections are optically connected to each other through said protective layers (130) to form an integral light guide path (100L). One end (100La) of the light guide path (100L) is directly connected to the light measuring board (140), and another end (100Lb) of the same is connected to the light measuring board (140) through an optical fiber (143).

A system and method for monitoring status information from a light based indicator system (e.g., stack lights, status lights, traffic lights or safety lights, etc.). At least one light sensor is positioned adjacent to an existing light indicator system, the existing light based indicator system having at least one indicator light to be monitored. A monitoring device at a location remote from the existing light based indicator system receives signals from the at least one light sensor indicative of a status of the at least one indicator light.

A stack light with a light section having a housing with a plurality of at least partially translucent side walls and having a plurality of opposing light sources on longitudinally opposite ends of the housing to produce a very even blended light. A stack light system with one or more such light sections also includes a sound section having a hollow housing and a set of interchangeable acoustic chambers configured for insertion into the hollow housing, each chamber including a piezoelectric transducer and having a side wall structure configured to abut an inner side wall surface of the hollow housing, the chamber, transducer and housing together defining a resonant cavity. In one embodiment, an acoustic chamber has a longitudinally extending side wall and a substantially closed end wall, the side wall having adjacent the end wall a plurality of wide lateral openings spaced apart along its perimeter, the openings each having a width in the range of approximately 8-25% of the wavelength of the piezoelectric transducer's fundamental frequency.

A vertical stacked light emitting structure includes a substrate unit, a stacked type light emitting module, and a flip-chip type light emitting module. The substrate unit includes a substrate body. The stacked type light emitting module includes a first light emitting unit and a light guiding unit. The first light emitting unit includes at least one first LED bare chip disposed on and electrically connected to the substrate body, and the light guiding unit includes at least one light guiding body disposed on the first LED bare chip. The flip-chip type light emitting module includes a second light emitting unit. The second light emitting unit includes at least one second LED bare chip disposed on the light guiding body and electrically connected to the substrate body. Hence, the first LED bare chip, the light guiding body, and the second LED bare chip are stacked on top of one another sequentially.