Optical element for a vehicle headlight with first and second primary optical arrays fixed to each other forming an array

Patent metadata

Field	Value
Publication number	US-9851065-B2
Application number	US-201414897146-A
Country	US
Kind code	B2
Filing date	May 27, 2014
Priority date	Jun 18, 2013
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

The invention relates to an optical element for a vehicle headlight, in particular a motor vehicle headlight, having a first head lens array which is a compressed as a single piece from a transparent material and at least one second head lens array which is compressed as a single piece from the same or another transparent material. Said first head lens array and the second head lens array have respectively a connecting web which connects the at least one first head lens to a second head lens.

First claim

The invention claimed is:

1. An optical element for a vehicle headlight, in particular for a motor vehicle headlight, including a monolithically pressed first primary optic array of transparent material and at least one monolithically pressed second primary optic array of transparent material, wherein the first primary optic array comprises
a first primary optic including a light entry face and a light exit face,
at least one second primary optic including a light entry face and a light exit face, and
a first connection web connecting the first primary optic mechanically to the second primary optic,
wherein the first primary optic comprises, on its side facing away from or opposing, respectively, the first connection web, a first web extending the light exit face of the first primary optic, wherein the second primary optic comprises, on its side facing away from or opposing, respectively, the first connection web, a second web extending the light exit face of the second primary optic,
herein the second primary optic array comprises
a third primary optic including a light entry face and a light exit face,
at least one fourth primary optic including a light entry face and a light exit face, and
a second connection web connecting the third primary optic mechanically to the fourth primary optic,
and wherein the first primary optic array and the second primary optic array are positioned and fixed with respect to each other such that they engage with each other such as to form an array, in which
the second primary optic is arranged between the third primary optic and the fourth primary optic, and
the third primary optic is arranged between the first primary optic and the second primary optic.

2. An optical element as claimed in claim 1 , characterised in that the first primary optic, the second primary optic, the third primary optic and/or the fourth primary optic comprise/s, between its/their respective light entry face/s and its/their light exit face/s, a press-molded surface, in particular for the total reflection of light irradiated into the light entry surface.

3. An optical element as claimed in claim 1 , characterised in that the distance
between the second primary optic and the third primary optic amounts to no more than 0.5 mm;
between the second primary optic and the fourth primary optic amounts to no more than 0.5 mm; and/or
between the first primary optic and the third primary optic amounts to no more than 0.5 mm.

4. An optical element as claimed in claim 1 , characterised in that a third primary optic array comprises, on its side facing away from or opposing, respectively, the second connection web, a third web extending the light exit face of the third primary optic.

5. An optical element as claimed in claim 1 , characterised in that a fourth primary optic array comprises, on its side facing away from or opposing, respectively, the second connection web, a fourth web extending the light exit face of the fourth primary optic.

6. A vehicle headlight, in particular a motor vehicle headlight, characterised in that it includes an optical element according to claim 1 as well as a light source array for making light enter into the light entry face(s), said light source array comprising, in particular, an LED.

7. An optical element for a vehicle headlight, in particular a motor vehicle headlight, including a monolithically pressed first primary optic array of transparent material including a monolithically pressed second primary optic array of transparent material, and including at least one monolithically pressed third primary optic array of transparent material,
wherein the first primary optic array comprises
a first primary optic including a light entry face and a light exit face,
at least one second primary optic including a light entry face and a light exit face, and
a first connection web connecting the first primary optic mechanically to the second primary optic,

wherein the second primary optic array comprises
a third primary optic including a light entry face and a light exit face,
at least one fourth primary optic including a light entry face and a light exit face, and
a second connection web connecting the third primary optic mechanically to the fourth primary optic,

wherein the third primary optic array comprises
a fifth primary optic including a light entry face and a light exit face,
at least one sixth primary optic including a light entry face and a light exit face, and
a third connection web connecting the fifth primary optic mechanically to the sixth primary optic,

wherein the first primary optic array, the second primary optic array, and the third primary optic array are positioned and fixed with respect to each other such that they engage with each other such that they form an array, in which
the first primary optic is arranged between the third primary optic and the fourth primary optic,
the second primary optic is arranged between the fifth primary optic and the sixth primary optic, and
the fourth primary optic and the fifth primary optic are arranged between the first primary optic and the second primary optic,

and wherein,
on its side facing away from or opposing, respectively, the first connection web, the first primary optic comprises a first web extending the light exit face of the first primary optic, and/or
on its side facing away from or opposing, respectively, the first connection web, the second primary optic comprises a second web extending the light exit face of the second primary optic, and/or
on its side facing away from or opposing, respectively, the first connection web, the third primary optic comprises a third web extending the light exit face of the third primary optic, and/or
on its side facing away from or opposing, respectively, the first connection web, the fourth primary optic comprises a fourth web extending the light exit face of the fourth primary optic, and/or
on its side facing away from or opposing, respectively, the first connection web, the fifth primary optic comprises a fifth web extending the light exit face of the fifth primary optic, and/or
on its side facing away from or opposing, respectively, the first connection web, the sixth primary optic comprises a sixth web extending the light exit face of the sixth primary optic.

8. An optical element as claimed in claim 7 , characterised in that the distance
between the first primary optic and the third primary optic amounts to no more than 0.5 mm;
between the first primary optic and the fourth primary optic amounts to no more than 0.5 mm;
between the second primary optic and the fifth primary optic amounts to no more than 0.5 mm;
between the second primary optic and the sixth primary optic amounts to no more than 0.5 mm, and/or
between the fourth primary optic and the fifth primary optic amounts to no more than 0.5 mm.

9. An optical element as claimed in claim 7 , characterised in that the first primary optic, the second primary optic, the third primary optic, the fourth primary optic, the fifth primary optic, and/or the sixth primary optic comprise/s, between its/their light entry face/s and its/their light exit face/s, a press-molded surface, in particular for the total reflection of light irradiated into the light entry face.

Assignees

• Docter Optics Se
• Zizala Lichtsysteme Gmbh

Inventors

• Taudt Lukas
• Moser Andreas
• Wintzer Wolfram
• Arnold Lars
• Willke Alois
• Plietzsch Sandro

Classifications

• F21S48/1241 Primary

  Mechanical Engineering · mapped topic

• C03B2215/412

  fine structured, e.g. fresnel lenses, prismatic reflectors, other sharp-edged surface profiles · CPC title

• C03B2215/79

  Uniting product and product holder during pressing, e.g. lens and lens holder · CPC title

• G02B6/0045

  by shaping at least a portion of the light guide · CPC title

• C03B11/08

  for making solid articles, e.g. lenses · CPC title