Securing device for an optical body for a motor vehicle headlight

Patent metadata

Field	Value
Publication number	US-10173578-B2
Application number	US-201415032208-A
Country	US
Kind code	B2
Filing date	Oct 15, 2014
Priority date	Oct 28, 2013
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

The invention relates to a mounting device (100) for an optical body (1) for a motor vehicle headlight or for a light module for a motor vehicle headlight, which optical body (1) has a number of adjacently arranged ancillary optical systems (11, 12, 13, 14, 15), wherein each ancillary optical system (11-15) is formed from a light-guiding material and each ancillary optical system (11-15) has a light coupling-in face (11a-15a) and a light decoupling face (11b-15b), wherein the ancillary optical systems (11-15) are mechanically interconnected in the region of the light decoupling faces (11b-15b) by at least one connecting web (21, 22) extending transversely to the ancillary optical systems (11-15), wherein the at least one connecting web (21, 22) is optically ineffective at least in regions, wherein the mounting device has a main body (101) having receptacles (121, 122) for the optical body (1), and a retaining body (102), which holds the optical body in the main body by means of camping elements (102b, 102c).

First claim

The invention claimed is:

1. A lighting device in the form of a light module for a motor vehicle headlight or in the form of a motor vehicle headlight, the lighting device comprising:
at least one optical body ( 1 ), which has a number of adjacently arranged ancillary optical systems ( 11 , 12 , 13 , 14 , 15 ), wherein each ancillary optical system ( 11 - 15 ) is formed from a light-guiding material and each ancillary optical system ( 11 - 15 ) has a light coupling-in face ( 11 a - 15 a ) and a light decoupling face ( 11 b - 15 b ), wherein the ancillary optical systems ( 11 - 15 ) are mechanically interconnected in the region of the light decoupling faces ( 11 b - 15 b ) by at least one connecting web ( 21 , 22 ) extending transversely to the ancillary optical systems ( 11 - 15 ); and
a mounting device ( 100 ) for the at least one optical body ( 1 ) which comprises
a main body ( 101 ), which is configured to be connected to a support ( 200 ) for one or more light sources ( 2 ) for feeding light into the at least one optical body ( 1 ), wherein the main body ( 101 ) has (i) at least one receptacle ( 111 , 112 , 113 , 114 , 115 ) for the ancillary optical systems ( 11 - 15 ), and (ii) at least one stop region ( 121 , 122 ), with which the at least one optical body ( 1 ) is configured to be brought into abutment via a rear face ( 21 ′, 22 ′) of the at least one connecting web ( 21 , 22 ) when the ancillary optical systems ( 11 - 15 ) are inserted into the at least one receptacle ( 111 , 112 , 113 , 114 , 115 ), wherein the at least one connecting web ( 21 , 22 ) is optically ineffective, at least in some regions,
a retaining body ( 102 ), which, once the at least one optical body ( 1 ) has been introduced into the main body ( 101 ), is configured to be applied to the main body ( 101 ) in the direction of introduction of the at least one optical body ( 1 ), and
a fastening device ( 101 a , 102 a ) by means of which the retaining body ( 102 ) is configured to be fixed to the main body ( 101 ),

wherein:
the retaining body ( 102 ) has at least one opening ( 102 ′), such that light exits unhindered from the light decoupling faces ( 11 b - 15 b ) of the ancillary optical systems ( 11 - 15 ),
the retaining body ( 102 ) has first clamping elements ( 102 b ) which, when the retaining body ( 102 ) is fastened to the main body ( 101 ), come to rest against the at least one connecting web ( 21 , 22 ) on a front face thereof ( 21 ″, 22 ″),
one or more of the ancillary optical systems ( 11 - 15 ) comprise webs ( 11 b ″, 12 b ″, 13 b ″, 14 b ″, 15 b ″), which extend the light decoupling faces ( 11 b - 15 b ) of the ancillary optical systems ( 11 - 15 ), wherein each web ( 11 b ″, 12 b ″, 13 b ″, 14 b ″, 15 b ″) is arranged in a region of the light decoupling face ( 11 b , 12 b , 13 b , 14 b , 15 b ) opposite and spaced apart from the at least one connecting web ( 21 , 22 ) such that the light decoupling face ( 11 b , 12 b , 13 b , 14 b , 15 b ) is disposed between the webs ( 11 b ″, 12 b ″, 13 b ″, 14 b ″, 15 b ″) and the at least one connecting web ( 21 , 22 ),
the retaining body ( 102 ) has second clamping elements ( 102 c ) which, when the retaining body ( 102 ) is fastened to the main body ( 101 ), come to rest against the webs ( 11 b ″, 12 b ″, 13 b ″, 14 b ″, 15 b ″) on alternating sides of the at least one optical body ( 1 ) but do not contact the at least one connecting web ( 21 , 22 ), and
the first and second clamping elements ( 102 b , 102 c ) press the at least one optical body ( 1 ) against the at least one stop region ( 121 , 122 ) of the main body ( 101 ).

2. The lighting device of claim 1 , wherein the first and second clamping elements ( 102 b , 102 c ) are spring-loaded.

3. The lighting device of claim 1 , wherein the at least one stop region ( 121 , 122 ) and the first clamping elements ( 102 b ) rest against regions of the rear face and the front face ( 21 ′, 22 ′), respectively, of the at least one connecting web ( 21 , 22 ) that delimit the optically ineffective region of the at least one connecting web ( 21 , 22 ).

4. The lighting device of claim 3 , wherein the first clamping elements ( 102 b ) which, when the retaining body ( 102 ) is fastened to the main body ( 101 ), come to rest against the at least one connecting web ( 21 , 22 ) on the front face ( 21 ″, 22 ″) thereof come to rest in at least one outer region with respect to a longitudinal extension of the at least one connecting web ( 21 , 22 ).

5. The lighting device of claim 1 , wherein the entire at least one connecting web ( 21 , 22 ) is optically ineffective.

6. The lighting device of claim 1 , wherein the at least one connecting web comprises two connecting webs ( 21 , 22 ), one in an upper and one in a lower region of the at least one optical body ( 1 ) in the installed position.

7. The lighting device of claim 6 , wherein the first clamping elements ( 102 b ) come to rest against an outer region of the two connecting webs ( 21 , 22 ).

8. The lighting device of claim 1 , wherein the light decoupling faces ( 11 b - 15 b ) of adjacent ancillary optical systems ( 11 - 15 ) are arranged at a distance a>0 from one another.

9. The lighting device of claim 1 , wherein the at least one optical body ( 1 ) comprises at least two separate optical components ( 1 a , 1 b ), wherein each optical component ( 1 a , 1 b ) comprises at least one light-guiding body ( 11 , 13 , 15 ; 12 , 14 ).

10. The lighting device of claim 9 , wherein the optical components ( 1 a , 1 b ) comprise precisely two optical components ( 1 a , 1 b ).

11. The lighting device of claim 9 , wherein at least one of the optical components ( 1 a , 1 b ) comprises two or more light-guiding bodies ( 11 , 13 , 15 ; 12 , 14 ).

12. The lighting device of claim 1 , wherein the second clamping elements ( 102 c ) which, when the retaining body ( 102 ) is fastened to the main body ( 101 ), come to rest against the light decoupling face ( 11 b - 15 b ) come to rest in the region of the light decoupling face ( 11 b - 15 b ) bordering the at least one connecting web ( 21 , 22 ).

13. The lighting device of claim 1 , wherein each ancillary optical system ( 11 , 12 , 13 , 14 , 15 ) has at least one of the webs ( 11 b ′, 12 b ′, 13 b ′, 14 b ′, 15 b ′), which connects the ancillary optical system ( 11 - 15 ) to the at least one connecting web ( 21 , 22 ).

14. The lighting device of claim 13 , wherein each ancillary optical system has at least one of the webs ( 11 b ″, 12 b ″, 13 b ″, 14 b ″, 15 b ″), which is arranged in the region of the light decoupling face ( 11 b , 12 b , 13 b , 14 b , 15 b ) facing away from the at least one connecting web ( 21 , 22 ) connecting the ancillary optical system ( 11 - 15 ) to other ancillary optical systems ( 11 - 15 ).

15. The lighting device of claim 13 , wherein the second clamping elements ( 102 c ) which, when the retaining body ( 102 ) is fastened to the main body ( 101 ), come to rest in the region of one or more light decoupling faces ( 11 b - 15 b ) of the one or more ancillary optical system(s) ( 11 - 15 ) come to rest against the webs ( 11 b ′, 12 b ′, 13 b ′, 14 b ′, 15 b ′, 11 b ″, 12 b ″, 13 b ″, 14 b ″, 15 b ″) extending the light decoupling faces ( 11 b - 15 b ) of the ancillary optical systems ( 11 - 15 ).

16. The lighting device of claim 15 , wherein t

Assignees

• Zizala Lichtsysteme Gmbh
• Zkw Group Gmbh

Inventors

• Maier Udo
• Reitegger Oliver
• Taudt Lukas

Classifications

• G02B7/00

  Mountings, adjusting means, or light-tight connections, for optical elements · CPC title

• F21S41/663

  by switching light sources (by switching incandescent light sources F21S41/162) · CPC title

• F21S41/60

  characterised by a variable light distribution · CPC title

• F21S41/29

  Attachment thereof (for achieving variable light distribution F21S41/63) · CPC title

• B60Q1/0408

  built into the vehicle body, e.g. details concerning the mounting of the headlamps on the vehicle body (B60Q1/0491, B60Q1/05 take precedence, integrated front ends B62D25/00) · CPC title