摘要:
An optoelectronic module for emitting monochromatic radiation in the visible wavelength range is specified. The module has a plurality of light emitting diode chips which generate UV radiation. The UV radiation is converted into light in the visible range, for example, into green light, by a wavelength converter. The coupling-out of light from the module is optimized by the use of two selectively reflecting and transmitting filters. This module can be used as a light source in a projection apparatus.
摘要:
An optoelectronic module for emitting monochromatic radiation in the visible wavelength range is specified. The module has a plurality of light emitting diode chips which generate UV radiation. The UV radiation is converted into light in the visible range, for example, into green light, by a wavelength converter. The coupling-out of light from the module is optimized by the use of two selectively reflecting and transmitting filters. This module can be used as a light source in a projection apparatus.
摘要:
A light-emitting structure includes a p-doped region for injecting holes and an n-doped region for injecting electrons. At least one InGaN quantum well of a first type and at least one InGaN quantum well of a second type are arranged between the n-doped region and the p-doped region. The InGaN quantum well of the second type has a higher indium content than the InGaN quantum well of the first type.
摘要:
A light-emitting structure includes a p-doped region for injecting holes and an n-doped region for injecting electrons. At least one InGaN quantum well of a first type and at least one InGaN quantum well of a second type, are arranged between the n-doped region and the p-doped region. The InGaN quantum well of the second type has a higher indium content than the InGaN quantum well of the first type.
摘要:
An apparatus for manufacturing muffles for producing dental prosthetic parts comprises a collar divided at least once in the peripheral direction to form a receiving space for an investment material in which at least one pattern for a dental prosthetic part is arranged before the filling with the investment material. At least one pattern holder simultaneously serves as a spacer for an injection plunger passage and a base part closes an open side of the collar. Holding means encompasses the collar to hold the collar together, with the collar being conical with respect to the longitudinal axis thereof at least in one section for simpler manufacture and better handling. The holding means includes at least one ring, in particular a rigid ring, which has a conical inner surface with which it is pushed onto the conical section in the collar.
摘要:
A firing tray for a furnace for dental ceramics having a plate for the placement on it of the firing material, wherein the plate is made as a base for the improvement of the application possibilities and the firing tray has additional wall elements which are designed for the placement on them of a further firing tray for the forming of a stack.
摘要:
An optoelectronic semiconductor component, comprising a carrier substrate, and an interlayer that mediates adhesion between the carrier substrate and a component structure. The component structure comprises an active layer provided for generating radiation, and a useful layer arranged between the interlayer and the active layer. The useful layer has a separating area remote from the carrier substrate.
摘要:
The invention relates to a stove for producing denture and or the parts thereof comprising a combustion chamber and a heating device which is arranged therein and provided with a heating spiral consisting of an appropriate resistance wire and a support for the heating spiral. The aim of said invention is to better use the heating energy and make it possible to easily replace the heating device. For this purpose, the heating spiral is arranged on the external part of the support.
摘要:
An apparatus for manufacturing muffles for producing dental prosthetic parts comprises a collar divided at least once in the peripheral direction to form a receiving space for an investment material in which at least one pattern for a dental prosthetic part is arranged before the filling with the investment material. At least one pattern holder simultaneously serves as a spacer for an injection plunger passage and a base part closes an open side of the collar. Holding means encompasses the collar to hold the collar together, with the collar being conical with respect to the longitudinal axis thereof at least in one section for simpler manufacture and better handling. The holding means includes at least one ring, in particular a rigid ring, which has a conical inner surface with which it is pushed onto the conical section in the collar.
摘要:
The invention relates to a press furnace for a denture or partial denture, having a combustion chamber in which a press mold, in particular a muffle, having a press channel for the introduction of a ram can be positioned, and a drive for driving the ram, wherein, in order to improve the drive of the press furnace, the drive provided is an electromagnet, the magnetic armature or magnetic coil of which drives the ram.