The utility model relates to a parallel exposure discharge lamp, which has a glass shell, a quartz tube, a cathode and an anode, a cathode sleeve, a cathode tungsten rod, an anode sleeve, an anode tungsten rod and a rear sleeve, wherein a cathode quartz column is arranged between the cathode sleeve and the rear sleeve, an anode quartz column is arranged between the anode sleeve and the rear sleeve, and the outer surface of the cathode quartz column, the anode quartz column and the inside of the quartz tube There are molybdenum plates between the back end of the cathode casing and the front end of the cathode quartz column, and between the anode casing and the front end of the anode quartz column. The front end of the cathode quartz column and the outer circumference of the front end of the anode quartz column have transitional chamfers. The utility model adopts the outer surface of cathode quartz column and anode quartz column to match with the plane of the inner wall of quartz tube, without large angle arc transition, so as to increase the diameter of the molybdenum sheet at the sealing position, ensure the consistency of the sealing temperature, and the molybdenum sheet sealing is not easy to wrinkle, so as to achieve better sealing effect.
【技术实现步骤摘要】
平行曝光放电灯
本技术涉及照明灯具
,尤其是一种平行曝光放电灯。
技术介绍
现有平行曝光放电灯结构中,器石英柱外周与石英管内壁一般均为弧面配合,使得石英柱前端与前套管之间、石英柱后端与后套管之间形成较大的圆弧过渡,造成钼片封接时容易出现折皱,封接直径较小,钼片强度不足,封接时温度不一致,钼片封接不够牢固;石英柱前后端孔径不同,同等温度下封接时孔内易出现裂纹,存在爆裂和炸灯的风险。同时,前套管前端面一般设计成碗形凹腔结构,带来封接时温度不易掌控,前套管前端面容易产生变形。
技术实现思路
本技术要解决的技术问题是:为了克服现有技术中之不足,本技术提供一种封接效果好的平行曝光放电灯。本技术解决其技术问题所采用的技术方案是:一种平行曝光放电灯,具有玻壳、分设在玻壳两端的石英管、设于玻壳内的阴极和阳极、阴极套管、穿设过阴极套管的阴极钨棒、阳极套管、穿设过阳极套管的阳极钨棒,阴极套管、阳极套管位于石英管前端,石英管后端设有后套管,后套管内穿设有后钨杆,所述的阴极套管与后套管之间设有阴极石英柱,阳极套管与后套管之间设有阳极石英柱,阴极石英柱、阳极石英柱的外周面与石英管内壁平面配合,阴极套管和阳极套管为圆柱状,阴极套管后端面与阴极石英柱前端面之间、阳极套管与阳极石英柱前端面之间均设有钼片,阴极石英柱前端和阳极石英柱前端的外周均具有过渡倒角。进一步地,所述的阴极石英柱和阳极石英柱的前后端均具有相同的中心孔。优选地,所述的阴极石英柱和阳极石英柱的前端外周均具有2×9的过渡倒角。本 ...
【技术保护点】
1.一种平行曝光放电灯,具有玻壳、分设在玻壳两端的石英管、设于玻壳内的阴极和阳极、阴极套管、穿设过阴极套管的阴极钨棒、阳极套管、穿设过阳极套管的阳极钨棒,阴极套管、阳极套管位于石英管前端,石英管后端设有后套管,后套管内穿设有后钨杆,其特征是:所述的阴极套管与后套管之间设有阴极石英柱,阳极套管与后套管之间设有阳极石英柱,阴极石英柱、阳极石英柱的外周面与石英管内壁平面配合,阴极套管和阳极套管为圆柱状,阴极套管后端面与阴极石英柱前端面之间、阳极套管与阳极石英柱前端面之间均设有钼片,阴极石英柱前端和阳极石英柱前端的外周均具有过渡倒角。/n
【技术特征摘要】
1.一种平行曝光放电灯,具有玻壳、分设在玻壳两端的石英管、设于玻壳内的阴极和阳极、阴极套管、穿设过阴极套管的阴极钨棒、阳极套管、穿设过阳极套管的阳极钨棒,阴极套管、阳极套管位于石英管前端,石英管后端设有后套管,后套管内穿设有后钨杆,其特征是:所述的阴极套管与后套管之间设有阴极石英柱,阳极套管与后套管之间设有阳极石英柱,阴极石英柱、阳极石英柱的外周面与石英管内壁平面配合,阴极套管和阳极套管为圆柱...
【专利技术属性】
技术研发人员:殷尧平,
申请(专利权)人:常州玉宇电光器件有限公司,
类型:新型
国别省市:江苏;32
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