Layered glass assembly for optical light beam projection with 3D effects on seamless surfaces

Patent metadata

Field	Value
Publication number	US-9927627-B2
Application number	US-201615078660-A
Country	US
Kind code	B2
Filing date	Mar 23, 2016
Priority date	Mar 24, 2015
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A layered glass assembly for optical light beam projection with three-dimensional depth perception for a vehicle includes: a display surface glass having a first refractive index and being configured to refract a first section of a light beam at a first interface; a first transition structure configured to refract a second section of the light beam at a second interface; a filler structure having a second refractive index and being configured to refract a third section of the light beam at a third interface; a second transition structure configured to refract a fourth section of the light beam at a fourth interface; and a front glass having a third refractive index and being configured to project the refracted light beam so as to generate the three-dimensional depth perception.

First claim

What is claimed is:

1. A layered glass assembly for optical light beam projection with three-dimensional depth perception for a vehicle, the layered glass assembly comprising:
a display surface glass having a first refractive index and being configured to refract a first section of a light beam at a first interface;
a first transition structure configured to refract a second section of the light beam at a second interface;
a filler structure having a second refractive index and being configured to refract a third section of the light beam at a third interface;
a second transition structure configured to refract a fourth section of the light beam at a fourth interface; and
a front glass having a third refractive index and being configured to project the refracted light beam so as to generate the three-dimensional depth perception,
wherein, in the direction from the display surface glass towards the front glass, the layers of the layered glass assembly increase in refractive index until a maximum value in refractive index is reached in the filler structure and, after this maximum value is reached, the layers of the layered glass assembly decrease in refractive index until the front glass is reached, and

wherein the front glass is shaped with raised or sunken area portions or a relief structure.

2. The layered glass assembly according to claim 1 ,
further comprising a gap arranged between the display surface glass and the front glass, wherein the filler structure is configured to fill the gap.

3. The layered glass assembly according to claim 1 ,
wherein the first optical refractive index of the display surface glass is different from the third optical refractive index of the front glass.

4. The layered glass assembly according to claim 3 , wherein the first optical refractive index of the display surface glass differs from the third optical refractive index of the front glass by one selected from the group of 15%, 10%, 5%, and 2%.

5. The layered glass assembly according to claim 1 ,
wherein the second optical refractive index of the filler structure is 1.2 times the first optical refractive index of the display surface glass.

6. The layered glass assembly according to claim 5 , wherein the second optical refractive index of the filler structure is one selected from the group of:
(a) 1.2 times the third optical refractive index of the front glass,
(b) 1.5 times the third optical refractive index of the front glass,
(c) 1.7 times the third optical refractive index of the front glass,
(d) 2 times the third optical refractive index of the front glass, and
(e) 2.5 times the third optical refractive index of the front glass.

7. The layered glass assembly according to claim 1 ,
wherein the first transition structure comprises a layered structure of at least two layers, wherein the layer adjacent to the display surface glass comprises the lowest refractive index of the layered structure and the layer adjacent to the filler structure comprises the highest refractive index of the layered structure.

8. The layered glass assembly according to claim 1 ,
wherein the second transition structure comprises a layered structure of at least two layers, wherein the layer adjacent to the front glass comprises the lowest refractive index of the layered structure and the layer adjacent to the filler structure comprises the highest refractive index of the layered structure.

9. The layered glass assembly according to claim 1 ,
wherein the layered glass assembly is configured to display information relating to: a speed of the vehicle, an engine rotational speed, a vehicle parameter, or a driving status of the vehicle.

10. An electronic instrument comprising at least one layered glass assembly according to claim 1 .

11. A vehicle comprising an electronic instrument according to claim 10 .

12. A method for producing a layered glass assembly according to claim 1 , the method comprising the steps of:
providing the display surface glass, the first transition structure, the filler structure, the second transition structure, and the front glass; and
assembling the display surface glass, the first transition structure, the filler structure, the second transition structure, and the front glass to form the layered glass assembly.

13. The layered glass assembly according to claim 1 , wherein the second optical refractive index of the filler structure is one selected from the group of:
(a) 1.2 times the third optical refractive index of the front glass,
(b) 1.5 times the third optical refractive index of the front glass,
(c) 1.7 times the third optical refractive index of the front glass,
(d) 2 times the third optical refractive index of the front glass, and
(e) 2.5 times the third optical refractive index of the front glass.

14. A layered glass assembly for optical light beam projection with three-dimensional depth perception for a vehicle, the layered glass assembly comprising:
a display surface glass having a first refractive index and being configured to refract a first section of a light beam at a first interface;
a first transition structure configured to refract a second section of the light beam at a second interface;
a filler structure having a second refractive index and being configured to refract a third section of the light beam at a third interface;
a second transition structure configured to refract a fourth section of the light beam at a fourth interface; and
a front glass having a third refractive index and being configured to project the refracted light beam so as to generate the three-dimensional depth perception,
wherein, in the direction from the display surface glass towards the front glass, the layers of the layered glass assembly increase in refractive index until a maximum value in refractive index is reached in the filler structure and, after this maximum value is reached, the layers of the layered glass assembly decrease in refractive index until the front glass is reached, and

wherein the display surface glass is shaped with raised or sunken area portions or a relief structure.

15. An electronic instrument comprising at least one layered glass assembly according to claim 14 .

16. A vehicle comprising an electronic instrument according to claim 15 .

17. A method for producing a layered glass assembly according to claim 14 , the method comprising the steps of:
providing the display surface glass, the first transition structure, the filler structure, the second transition structure, and the front glass; and
assembling the display surface glass, the first transition structure, the filler structure, the second transition structure, and the front glass to form the layered glass assembly.

Assignees

• Pasca Andrei
• Continental Automotive Gmbh

Inventors

• Pasca Andrei

Classifications

• G02B30/40 Primary

  giving the observer of a single two-dimensional [2D] image a perception of depth · CPC title

• G02B27/2221 Primary

  Physics · mapped topic

• B60K2350/2017

  Operations & Transport · mapped topic

• B60K35/00

  Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles · CPC title

• B60K35/211

  producing three-dimensional [3D] effects, e.g. stereoscopic images · CPC title