Abstract:
The invention relates to a high-pressure mercury vapor lamp suitable for sterilization purposes. The high-pressure mercury vapor lamp according to the invention is remarkable in that germanium and oxygen are added in small quantities to the mercury and/or the mercury halides. The addition of germanium monoxide furthermore surprisingly increases the GAC efficiency (GAC: short for Germicidal Action Curve) of a high-pressure mercury vapor lamp, because germanium monoxide emits a strong molecular band system in the range from 250 to 280 nm. The germicidal action of the high-pressure mercury vapor lamp according to the invention is thus increased with respect to that of conventional highpressure mercury vapor lamps. This is apparent from the fact that the GAC-weighted radiant flux is greater than before in the high-pressure mercury vapor lamp according to the invention.
Abstract:
The invention relates to a high-pressure gas-discharge lamp, having at least one gastight fused press-seal (61, 62) between a glasslike material and molybdenum, wherein the molybdenum in the fused press-seal (61, 62) is at least partly exposed to an oxidizing environment and at least that part of the molybdenum (5) that is exposed to the oxidizing environment is covered with a coating, and the coating comprises at least one oxide from among Fethe invention relates to a high-pressure gas-discharge lamp,having at least one gastight fused press-seal between a glasslike material and molybdenum,wherein the molybdenum in the fused press-seal is at least partly exposed to an oxidizing environment and at least that part of the molybdenum that is exposed to the oxidizing environment is covered with a coating, and the coating comprises at least one oxide from among Fe2O3, Ta2O5, Nb2O5, Al2O3, SiO2, TiO2, ZrO2, HfO2, and/or one nitride from among TiN, ZrN, HfN, AlN, BN, and/or one carbide from among TiC, ZrC, HfC, VC, NbC, TaC, B4C.
Abstract:
A low-pressure gas discharge lamp equipped with a gas discharge vessel containing an inert gas filling as the buffer gas, with electrodes and with means for generating and maintaining a low-pressure gas discharge, is described, wherein the lamp contains at least one tin halide.
Abstract:
An optical sensor (600) for detecting the movement of an object relative to the position of the optical sensor (600),using self-mixing interference,is described. The optical sensor (600) comprises a laser (100), a detector (200) and a filter device (500). The filter device (500) suppresses measurement signals generated by means of the detector (200) whenmovements of the object ata velocity below a defined threshold value cause the measurement signals. The optical sensor (600) may be used in a switch in order to enable selective switching depending on the velocity of the movement of the object.
Abstract:
The present invention relates to a laser sensor for self-mixing interferometry. The laser sensor comprises at least one semiconductor laser light source emitting laser radiation and at least one photodetector (6) monitoring the laser radiation of the laser light source. The laser light source is a VECSEL having a gain medium (3) arranged in a layer structure (15) on a front side of a first end mirror (4), said first end mirror (4) forming an external cavity with an external second end mirror (5). The proposed laser sensor provides an increased detection range and can be manufactured in a low-cost production process.
Abstract:
The invention relates to a high-pressure discharge lamp with a discharge vessel having a filling comprising - a rare gas, for example argon, - mercury, and - chlorine, wherein the filling quantities of mercury [Hg] and chlorine [Cl] comply with the following conditions: - [Hg]OE[Cl] ³ 200 (µmole/cm3)2, - [Cl] £ 10 µmole/cm3. The condition [Hg]OE[Cl] ³ 200 (µmole/cm3)2 achieves HgCl vapor pressures in the discharge sufficient for generating significant radiation components of the B2S+-X2S+ band system of this molecule. The condition [Cl] £ 10 µmole/cm3 serves to limit the chemical aggressiveness of the chlorine filling, in particular to limit the attacks on the wall and electrodes and thus to achieve longer lamp lives. The addition of chlorine-binding metals, in particular of germanium, leads to a further improvement in the radiation and life properties of the lamp.
Abstract translation:本发明涉及一种具有放电容器的高压放电灯,该放电容器具有填充物,该填充物包括稀有气体,例如氩气,汞和氯气,其中汞[Hg]和氯[Cl]的填充量符合 以下条件: - [Hg] OE [Cl]³200(μmole/ cm 3)2, - [Cl]≤10μmole/ cm 3。 在[Hg] OE [Cl]³200(μmole/ cm 3)2的条件下,放电中的HgCl蒸气压足以产生该分子的B2S + -X2S +带系的显着辐射组分。 条件[Cl]≤10μmol/ cm 3用于限制氯填充物的化学侵蚀性,特别是限制对壁和电极的攻击,从而实现更长的灯寿命。 添加氯结合金属,特别是锗,导致灯的辐射和寿命特性的进一步改进。