High-pressure discharge lamp and reflector combination
    2.
    发明授权
    High-pressure discharge lamp and reflector combination 失效
    高压放电灯和反光杯组合

    公开(公告)号:US4290097A

    公开(公告)日:1981-09-15

    申请号:US66664

    申请日:1979-08-15

    摘要: A-C high-pressure discharge lamp and reflector combination assembly in which the reflector and the lamp are each separately and individually cemented into a base, but are not cemented together. Ventilation openings are formed between the lamp and the reflector in the base, to permit air to pass between the base and the lamp, and between the lamp and the reflector. Preferably, the reflector at the end remote from the base is surrounded with a ceramic end ring, at the inner circumference of which extends a metallic ribbon or strip which has radially extending connecting portions to the electrical terminals of the lamp, placed edgewise with respect to the light radiation to provide for essentially shadowless electrical connection and high-voltage insulation between the lamp terminals. Constructing the lamp as an a-c lamp permits lifetimes in the order of hundreds of hours for a lamp of comparable power and size with respect to d-c high-pressure lamps.

    摘要翻译: A-C高压放电灯和反射器组合组件,其中反射器和灯各自单独地并且单独地胶合到基座中,但是不粘合在一起。 在基座中的灯和反射器之间形成通风开口,以允许空气在基座和灯之间以及在灯和反射器之间通过。 优选地,远离基座的端部处的反射器被陶瓷端环包围,其内圆周延伸有金属带或带,该金属带或带具有径向延伸的连接部分到灯的电端子,其相对于 光辐射提供基本上无阴影的电连接和灯端子之间的高压绝缘。 将灯作为a-c灯构成,相对于d-c高压灯,灯具的寿命可达数百小时,具有相当的功率和尺寸的灯。

    Compact high-pressure discharge lamp with a fill including cadmium and
lithium halide
    3.
    发明授权
    Compact high-pressure discharge lamp with a fill including cadmium and lithium halide 失效
    紧凑型高压放电灯,包括镉和卤化锂

    公开(公告)号:US4686419A

    公开(公告)日:1987-08-11

    申请号:US829413

    申请日:1986-02-13

    CPC分类号: H01J61/125 H01J61/827

    摘要: A metal halide high-pressure discharge lamp has a discharge vessel of comt construction, with a fill of mercury, at least one noble gas, typically argon, and a metal halide, with an excess of halogen. The halogen component of the metal halide is formed by iodine and/or bromine. An average light density in excess of 30 ksb, with a specific arc power of between 400 to 5000 W/cm is obtained over an average lifetime of 250 hours with a color rendering index Ra of at least 85 by utilizing cadmium and lithium as the metal component in the metal halide of the fill. Preferably, holmium also is used as a metal for the metal halide, the fill including between 0.1 and 5 mg cadmium, up to 0.05 mg lithium, and 0.05 to 1 mg holmium in a preferred form, halogen and bromine being present in a mol relation of between 0.5 to 2 within the discharge vessel. The excess halogen may be up to about 35 micromol per cubic centimeter of volume of the discharge vessel. The lamp is particularly suitable for optical projection systems, for example for combination with a reflector (13).

    摘要翻译: 金属卤化物高压放电灯具有紧凑结构的放电容器,其中填充有汞,至少一种惰性气体(通常为氩)和具有过量卤素的金属卤化物。 金属卤化物的卤素组分由碘和/或溴形成。 通过利用镉和锂作为金属,在250小时的平均寿命中获得超过30ksb的平均光密度,具有400至5000W / cm的特定电弧功率,显色指数Ra至少为85。 填充物的金属卤化物中的成分。 优选地,钬也用作金属卤化物的金属,填充物包括0.1至5mg镉,至多0.05mg的锂和0.05至1mg的优选形式的钬,卤素和溴以摩尔关系存在 在放电容器内0.5至2之间。 过量的卤素可以达到放电容器体积的每立方厘米约35微摩尔。 该灯特别适用于光学投影系统,例如与反射器(13)组合。