Ultra High Pressure Mercury Lamp
A technology of ultra-high pressure and mercury lamps, which is applied to the parts of gas discharge lamps, lighting devices, lighting and heating equipment, etc. It can solve the problems of cracks in quartz lamp tubes and different linear expansion coefficients of uniformity, so as to suppress the occurrence of cracks Effect
Inactive Publication Date: 2016-04-13
OSRAM GMBH
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Although the above-mentioned first and second bonding agents 218 are the same type of bonding agent, there is the following problem: In the base mounting process, when the second bonding agent 218 is injected and dried with a dryer (oven), When the linear expansion coefficient is different due to the deviation of uniformity (particle diameter, distribution, etc.), the quartz lamp tube near the boundary of the bonding agent 218 for the first time and the second time is subjected to shear stress, thereby producing crack
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment approach 1
[0021] Nowadays, for the ultra-high pressure mercury lamp, the molybdenum (Mo) foil is sealed with a quartz lamp tube, and the luminescent tube and the lamp cap are fixed in the reflector with an adhesive during positioning. The fixation by the cement is divided into two fixes, that is, the fixation of the arc tube to the reflector and the fixation of the base. At this time, cracks may occur in the quartz lamp tube near the boundary surface between the first bonding agent and the second bonding agent.
[0022] First, a phenomenon in which the above-mentioned cracks are generated will be described. figure 1 It is a figure which shows Embodiment 1, and is a schematic diagram which shows the state which fixed the arc tube 2 to the reflector 3 using the adhesive 18a in the ultrahigh pressure mercury lamp 100. FIG. The ultra-high pressure mercury lamp 100 is in the reflector 3 ( figure 1 An example of a parabolic reflector) houses the luminous tube 2 inside. The arc tube 2 is ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides an ultrahigh pressure mercury lamp, which can inhibit generation of a crack of a quartz lamp tube caused by two separate pouring of a cement when a light emitting tube is fixed at a reflector, i.e. during positioning, and when a lamp holder is fixed, i.e. during installation of the lamp holder. For the ultrahigh pressure mercury lamp, the light emitting tube of the quartz lamp tube is fixed at the neck part of the reflector via pouring of the first-time cement, additionally, the lamp holder is fixed at the end part of the neck part of the light emitting tube via pouring of the second-time cement, wherein, under the condition that a summation axial depth of the first-time cement and the second-time cement after pouring is set to be X, the pouring depth of the first-time cement is made to be greater than 2X / 3.
Description
technical field [0001] The invention relates to ultra-high pressure mercury lamps used in light sources of projector devices. Background technique [0002] Figure 7 is a schematic diagram of a conventional ultra-high pressure mercury lamp 200 . The conventional ultra-high pressure mercury lamp 200 is provided with a reflector 203 having a surface functioning as a concave reflector formed on the inner surface of the reflector 203 . A cylindrical protruding portion, that is, a neck portion 203b is formed on the outer surface of the reflecting mirror 203 at a position corresponding to the bottom of the concave reflecting mirror. The luminous tube 202 of the ultra-high pressure mercury lamp 200 has a cylindrical shape, and one end of the luminous tube 202 passes through the neck 203b from the bottom of the reflector 203, and is sealed by the junction between the luminous tube 202 and the inner wall of the neck 203b. The mixture 208 is fixed together with the lamp cap 215 . A...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01J61/36F21Y101/00
Inventor 河野英博松本英之
Owner OSRAM GMBH