Large-power xenon lamp bulb and preparation method thereof

[0027] The technical solution will be described in detail below in conjunction with specific embodiments.

[0028] Such as figure 1 As shown, the present invention is a high-power xenon bulb, which includes a bulb 1 which is an olive-shaped glass bulb. A glass tube 2 is provided on both sides of the bulb 1 respectively. The glass tube 2 is provided with a molybdenum rod 4 with a molybdenum sheet 3, and the end of the molybdenum rod 4 is provided with an electrode tip 5, and the bulb is filled with xenon gas and metal halide The glass tube 2 is provided with a clamping position 2-1 for fixing the molybdenum rod, and the molybdenum rod is provided with limit lamp pins 4-1 pressed against the inner walls of both sides of the glass tube. The limit lamp pin 4-1 includes an S-shaped support bent by a molybdenum rod. The two ends of the S-shaped support are respectively pressed against the inner wall of the glass tube. The end of the limit lamp pin has a straight rod extending out of the glass tube. Section 4-2. Of course, the S-shaped support can also be replaced with other shapes of support and positioning structures, such as T-shaped, V-shaped, etc., in order to make the position of the molybdenum rod on the central axis of the glass tube.

[0029] The clamping position 2-1 is arranged between the glass tube and the limit lamp pin, the clamping position is flat, and the bulb is an olive-shaped glass bulb.

[0030] The following is the preparation method corresponding to the high-power xenon bulb, which includes the following steps:

[0031] a. Prepare the bubble body, select a quartz glass tube of appropriate length, and blow the middle part into an olive-shaped bubble shell through a bubble blowing machine, such as figure 2;

[0032] b. Then insert a first molybdenum rod with a limited lamp pin into one side of the glass tube of the blister, place the electrode end of the first molybdenum rod in the blister, clamp and seal tightly at the molybdenum sheet, such as image 3;

[0033] c. Put the blister with one end of the electrode in a vacuum high temperature furnace, and vacuum dehydroxylation in a 1000-1100 degree high temperature furnace for 7-10 hours;

[0034] d. After cooling the dehydroxylated bulb, add metal halide and mercury to the bulb through the unsealed end of the glass tube;

[0035] e. Insert the second molybdenum rod with a limited lamp pin into the other side of the unsealed blister glass tube, confine it in a proper position, and then fix it on a clamping machine or plasma flame seal, such as Figure 4;

[0036] f. The unsealed end is filled with xenon gas into the bulb, and after the xenon gas is filled, the tube mouth is clamped and sealed by a clamp sealer or plasma flame seal, and then the molybdenum rod at the end is clamped and sealed;

[0037] g. Cut the end of the glass tube flat with a tube cutter at both ends, exposing a molybdenum rod of appropriate length to obtain a high-power xenon bulb product, such as figure 1.

[0038] Further, the length of the molybdenum rod protruding from the glass tube is 3-30 mm. In the e step, the distance between the electrode ends of the two molybdenum rods needs to be adjusted. The process is to insert the second molybdenum rod into the glass tube on the other side of the unsealed blister, and then put the whole into the projector In the object placement area, adjust the focus of the projector to a clear state, and adjust the electrode distance to a symmetrical electrode distance of 25-180mm according to different power requirements. The specific process of dehydroxylation of the blister shell is: first clean the surface of the blister shell with a dust-free cloth sticking absolute ethanol, and dry it; then put the dried blister shell into the glove box, and place the arc in the glove box. The tube is placed in a quartz container, and then the quartz container is placed in a high-temperature furnace for vacuum dehydroxylation.

[0039] Compared with the prior art, the present invention is simpler in process and higher in production efficiency; in terms of products, the entire foam body has a smooth surface, a uniform and controllable thickness, and an overall beautiful appearance. When working, the surface temperature is uniform, and the service life is 10% longer than that of a traditional bulb with an exhaust pipe; the 360-degree light output is uniform, and the light transmission is good, which is more than 10% higher than that of a traditional bulb with an exhaust pipe.

[0040] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, all of which belong to the present invention. The scope of protection of the invention.