Optical element having a plurality of interposed optical arrays

Patent metadata

Field	Value
Publication number	US-9689545-B2
Application number	US-201314428574-A
Country	US
Kind code	B2
Filing date	Sep 14, 2013
Priority date	Oct 14, 2012
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

An optical element including a first head lens array having at least first and second head lenses joined together by a bar, and at least one second bead lens array having at least a third head lenses arranged between the first and second head lenses.

First claim

The invention claimed is:

1. An optical element for a vehicle headlight, the optical element including:
a monolithically pressed first primary optic array of transparent glass material; and
at least one monolithically pressed second primary optic array of a transparent material, wherein the first primary optic array comprises:
a first primary optic having a light entry face and a light exit face;
at least one second primary optic having a light entry face and a light exit face;
and a web connecting the first primary optic mechanically to the second primary optic;
wherein the second primary optic array comprises:
a third primary optic having a light entry face and a light exit face;
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 each other to form an array, in which the third primary optic is arranged between the first primary optic and the second primary optic;
and wherein the distance between the first primary optic and the third primary optic is no more than 0.5 mm and the distance between the second primary optic and the third primary optic is no more than 0.5 mm.

2. The optical element as claimed in claim 1 , the second primary optic array further comprising:
at least one fourth primary optic having a light entry face and a light exit face; and
a web connecting the third primary optic mechanically to the fourth primary optic.

3. The optical element as claimed in claim 2 , wherein the second primary optic is arranged between the third primary optic and the fourth primary optic.

4. The optical element as claimed in claim 3 , wherein the distance between the second primary optic and the third primary optic amounts to no more than 0.5 mm, and the first primary optic and the third primary optic amounts to no more than 0.5 mm.

5. The optical element as claimed in claim 1 , wherein the transparent material is inorganic glass.

6. The optical element as claimed in claim 5 , the second primary optic array further comprising:
at least one fourth primary optic having a light entry face and a light exit face; and
a web connecting the third primary optic mechanically to the fourth primary optic.

7. The optical element as claimed in claim 6 , wherein the second primary optic is arranged between the third primary optic and the fourth primary optic.

8. The optical element as claimed in claim 7 , wherein the first primary optic, the second primary optic, the third primary optic or the fourth primary optic comprises a press-molded surface between their respective light entry face and their light exit face for the total reflection of light irradiated into the light entry surface.

9. The optical element as claimed in claim 7 , wherein the distance between
the second primary optic and the third primary optic amounts to no more than 0.5 mm;
the second primary optic and the fourth primary optic amounts to no more than 0.5 mm; or
the first primary optic and the third primary optic amounts to no more than 0.5 mm.

10. The optical element as claimed in claim 7 , wherein the first primary optic, the second primary optic, the third primary optic and the fourth primary optic comprise a press-molded surface between their respective light entry face and their light exit face for the total reflection of light irradiated into the light entry surface.

11. The optical element as claimed in claim 10 , wherein the distance between
the second primary optic and the third primary optic amounts to no more than 0.5 mm;
the second primary optic and the fourth primary optic amounts to no more than 0.5 mm; and
the first primary optic and the third primary optic amounts to no more than 0.5 mm.

12. An optical element for a vehicle headlight, the optical element including a monolithically pressed first primary optic array of inorganic glass, including a monolithically pressed second primary optic array of inorganic glass, and including at least one monolithically pressed third primary optic array of inorganic glass, wherein the first primary optic array comprises:
a first primary optic having a light entry face and a light exit face;
at least one second primary optic having a light entry face and a light exit face; and
a web connecting the first primary optic mechanically to the second primary optic;
wherein the second primary optic array comprises:
a third primary optic having a light entry face and a light exit face;
at least one fourth primary optic having a light entry face and a light exit face and
a web connecting the third primary optic mechanically to the fourth primary optic;
wherein the third primary optic array comprises:
a fifth primary optic having a light entry face and a light exit face;
at least one sixth primary optic having a light entry face and a light exit face; and
a 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 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.

13. The optical element as claimed in claim 12 , wherein the distance between
the first primary optic and the third primary optic amounts to no more than 0.5 mm;
the first primary optic and the fourth primary optic amounts to no more than 0.5 mm;
the second primary optic and the fifth primary optic amounts to no more than 0.5 mm;
the second primary optic and the sixth primary optic amounts to no more than 0.5 mm; or
the fourth primary optic and the fifth primary optic amounts to no more than 0.5 mm.

14. The optical element as claimed in claim 12 , the first primary optic array further comprising:
a seventh primary optic including a light entry face and a light exit face, wherein the first primary optic and the second primary optic are arranged on a first side of the web of the first primary optic array, and wherein the seventh primary optic is arranged on a second side of the web of the first primary optic array, which second side lies opposite to the first side of the web of the first primary optic array, wherein the transition from the seventh primary optic to the web of the first primary optic array is arranged between the transition from the first primary optic to the web of the first primary optic array and the transition from the second primary optic to the web of the first primary optic array.

15. The optical element as claimed in claim 12 , the first primary optic array further comprising:
a seventh primary optic including a light entry face and a light exit face, wherein the first primary optic and the second primary optic are arranged on a first side of the web of the first primary optic array, and wherein the seventh primary optic is arranged on a second side of the web of the first primary optic array, which second side lies opposite to the first side of the web of the first primary optic array, wherein the transition from the seventh primary optic to the web of the first primary optic array is arranged centrally between the transition from the first primary optic to the web of the first primary optic array and the transition from the second primary optic to the web of the first primary op

Assignees

• Docter Optics Se

Inventors

• Wintzer Wolfram
• Arnold Lars
• Willke Alois
• Plietzsch Sandro

Classifications

• C03B2215/79

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

• C03B11/082

  having profiled, patterned or microstructured surfaces · CPC title

• B29D11/00663

  Production of light guides · CPC title

• B29D11/00

  Producing optical elements, e.g. lenses or prisms (grinding or polishing of optical elements B24B; constructional form of optical elements G02B; {optical parts of spectacles G02C7/00}) · CPC title

• G02B19/0066 Primary

  in the form of an LED array · CPC title