Electrodeless lighting device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9620352-B2
Application number	US-201314108949-A
Country	US
Kind code	B2
Filing date	Dec 17, 2013
Priority date	Dec 18, 2012
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

An electrodeless lighting device and methods for manufacturing the same are provided. The method includes inserting a dose into the bulb and at least one of heating a vacuum line for applying a vacuum to the bulb at first predetermined temperature and heating the bulb containing the dose at a second predetermined temperature for a predetermined time.

First claim

What is claimed is:

1. A method for manufacturing an electrodeless lighting device having a bulb, the method comprising:
(a) inserting a dose into the bulb; and
(b) heating the bulb containing the dose at a first temperature for a first predetermined time,
wherein the first temperature ranges from 80° C. to 100° C.

2. The method according to claim 1 , wherein the first temperature is lower than a boiling point of the dose.

3. The method according to claim 1 , wherein the first predetermined time ranges from 1 to 5 minutes.

4. The method according to claim 1 , wherein the dose comprises at least one of sulfur and a metal halide.

5. The method according to claim 4 , wherein the metal halide comprises at least one selected from the group consisting of calcium bromide (CaBr 2 ), lithium iodide (LiI) and indium bromide (InBr).

6. A method for manufacturing an electrodeless lighting device having a bulb, the method comprising:
(a) heating the bulb at a first predetermined temperature for a first predetermined time;
(b) inserting a dose into the bulb;
(c) heating the bulb containing the dose at a second predetermined temperature for a second predetermined time; and
(d) applying a vacuum to an inside of the bulb so as to discharge impurities to an outside of the bulb.

7. The method according to claim 6 , wherein the first predetermined temperature ranges from 800° C. to 1,000° C. and the first predetermined time ranges from 30 minutes to 2 hours.

8. The method according to claim 7 , wherein the second predetermined temperature ranges from 80° C. to 100° C. and the second predetermined time ranges from 1 to 5 minutes.

9. The method according to claim 6 , further comprising heating a vacuum line for applying a vacuum to the bulb at a temperature of 150° C. to 200° C. before step (b) is performed.

10. The method according to claim 6 , further comprising, after step (c):
changing an atmosphere of a gas line for injecting an inert gas into the bulb to an inert gas atmosphere; and
injecting an inert gas into the bulb.

11. A method for manufacturing an electrodeless lighting device having a bulb, the method comprising:
(a) inserting a dose into the bulb;
(b) heating a vacuum line for applying a vacuum to the bulb at a first predetermined temperature and heating the bulb containing the dose at a second predetermined temperature for a predetermined time;
(c) after heating the bulb containing the dose at the second predetermined temperature for the predetermined time, changing an atmosphere of a gas line for injecting an inert gas into the bulb to an inert gas atmosphere; and
(d) injecting an inert gas into the bulb.

12. The method according to claim 11 , wherein the first predetermined temperature ranges from 150° C. to 200° C.

13. The method according to claim 12 , wherein the second predetermined temperature ranges from 80° C. to 100° C. and the predetermined time ranges from 1 to 5 minutes.

14. A method for manufacturing an electrodeless lighting device having a bulb, the method comprising:
(a) heating a vacuum line connected to the bulb at 150° C. to 200° C.;
(b) heating the bulb at 800° C. to 1,000° C. for 30 minutes to 2 hours;
(c) applying a vacuum to the bulb;
(d) inserting a dose into the bulb;
(e) heating the bulb containing the dose at a temperature of 80° C. to 100° C. for 1 to 5 minutes;
(f) applying another vacuum to the bulb;
(g) changing an atmosphere of a gas line connected to the bulb to an inert gas atmosphere; and
(h) injecting an inert gas into the bulb.

Assignees

• Lg Electronics Inc

Inventors

• Kang Yongdae
• Kang Jungwon
• Kim Hyunjung

Classifications

• H01J9/395

  Filling vessels · CPC title

• H01J61/12

  Selection of substances for gas fillings; Specified operating pressure or temperature · CPC title

• H01J65/044 Primary

  the field being produced by a separate microwave unit · CPC title

• H01J9/38

  Exhausting, degassing, filling, or cleaning vessels · CPC title

• H01J9/24

  Manufacture or joining of vessels, leading-in conductors or bases · CPC title