Gas Sensor And Method For The Production Thereof

Abstract

A gas sensor having a base, a light source having a lamp body, the light source being carried by the base, a first reflector associated with the light source, a detector for detecting the intensity of the light source, and a lampholder for play-free and immobile securing of the lamp body is disclosed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Further details, advantages and features of the present invention will become apparent from the following description of an exemplary embodiment together with the drawings, in which:

FIG. 1 is a schematic view of a gas sensor according to an embodiment of the present invention;

FIG. 2 is a sectional view of the gas sensor of FIG. 1 showing a light source installed into a base;

FIG. 3 a is a schematic view of a step according to a method of producing the gas sensor of FIG. 1; and

FIG. 3 b is a schematic view of a step of the method of FIG. 3a, the step being subsequent to the step of FIG. 3a.

Claims

1. A gas sensor, comprising: a base;a light source having a lamp body, the light source being carried by the base;a first reflector associated with the light source;a detector for detecting the intensity of the light source; anda lampholder for play-free and immobile securing of the lamp body.

2. The gas sensor according to claim 1, wherein the lampholder is formed by solidification of an adhesion promoter displaced relative to the lamp body while in a substantially liquid state.

3. The gas sensor according to claim 2, wherein the lampholder surrounds at least part of the circumference of the lamp body.

4. The gas sensor according to claim 3, wherein the circumferential surface of the lampholder takes the form of an incline in contact with the base.

5. The gas sensor according to claim 3, wherein the lampholder is formed between the inside of a base receptacle and the outside of a lamp body portion received in the base receptacle.

6. The gas sensor according to claim 5, wherein an inclined portion projects beyond an open end of the base receptacle.

7. The gas sensor according to claim 1, wherein the lamp body and the base are bonded together.

8. The gas sensor according to claim 1, wherein the lampholder is formed of an adhesive.

9. The gas sensor according to claim 1, wherein the lampholder and the base are of identical material.

10. The gas sensor according to claim 1, further comprising: a second reflector associated with the detector; anda detector holder for play-free and immobile securing of the detector.

11. A method for producing a gas sensor, comprising the steps of: interposing a fluid between a lamp body of a light source and a base; andsolidifying the fluid thereby securing the lamp body in a play-free and immobile manner in the solidified fluid.

12. The method according to claim 11, wherein the fluid is applied to the base.

13. The method according to claim 11, wherein some of the fluid is displaced and solidifies to form a lampholder surrounding at least part of a circumference of the lamp body.

14. The method according to claim 11, wherein the fluid is introduced into a base receptacle for receiving the light source and some of the fluid is displaced into a gap between the base receptacle and the lamp body.

15. The method according to claim 14, wherein the fluid is displaced beyond an edge of the open end of the base receptacle onto a surface of the base.

16. The method according to claim 15, wherein the fluid displaced beyond the edge is inclined.

17. The method according to claim 11, wherein the lamp body and the base are bonded together.

18. The method according to claim 13, wherein the fluid is a material of the base which flows when heated and wherein the lampholder is formed by installing the light source into the material of the base while the material of the base is heated.

19. The method according to claim 18, wherein the material of the base is heated locally.

20. The method according to claim 11, wherein the fluid is an adhesive.