Light emitting emblem

• US 10,191,201 B2
• Filed: 06/09/2017
• Issued: 01/29/2019
• Est. Priority Date: 06/13/2016
• Status: Active Grant

• Current Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Original Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Inventors: Kuramitsu, Yuki, Fukui, Hirotaka, Tanaka, Yoshiharu
• Primary Examiner(s): Quarterman, Kevin
• Application Number:
  US15/618,195
• Publication Number:
  US 20170357044A1
• Time in Patent Office: 599 Days
• CPC Class Codes: B60R 13/005 Manufacturers' emblems, name plates, bonnet ornaments, mascots or the like; Mounting means therefor
• CPC Class Codes: F21W 2104/00 Exterior vehicle lighting devices for decorative purposes
• CPC Class Codes: G02B 6/002 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
• CPC Class Codes: G02B 6/0023 provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
• CPC Class Codes: G02B 6/005 provided by one optical element, or plurality thereof, placed on the light output side of the light guide
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package

Abstract

A light emitting emblem includes: a board; a light source arranged at the board; a light guide plate having a second peripheral edge and an inner side portion, the second peripheral edge having a first surface facing the light source and a second surface opposite to the first surface, the first surface including a light entering part into which light from the light source is incident, and the second surface including an inclination part through which the light incident into the light entering part is reflected to the inner side portion from the second peripheral edge; and a shielding plate that shields the light from the light source and prevents light not incident from the light entering part from being incident into the inner side portion, wherein the inclination part is positioned at an outer edge of the light emitting emblem from the shielding plate.

Claims

1. A light emitting emblem comprising:

a board having a first peripheral edge;

a light source arranged at the first peripheral edge;

a light guide plate having a second peripheral edge and an inner side portion, the second peripheral edge having a first surface facing the light source and a second surface opposite to the first surface, the first surface including a light entering part into which light from the light source is incident, and the second surface including an inclination part through which the light incident into the light entering part is reflected to the inner side portion from the second peripheral edge; and

a shielding plate that shields the light from the light source and prevents light not incident from the light entering part from being incident into the inner side portion,

wherein the inclination part is positioned at an outer edge of the light emitting emblem from the shielding plate, and

wherein the light guide plate has the light entering part facing the light source on the first surface of the second peripheral edge of the light guide plate and the inclination part on the second surface of an opposite side.

2. The light emitting emblem according to claim 1, wherein the light entering part has a convex portion and a reflection portion, which is installed around the convex portion and reflects the light incident from the light source, and is positioned at the outer edge of the light emitting emblem from the shielding plate.

3. The light emitting emblem according to claim 2, wherein the inclination part and the reflection portion are directly continuous.

4. The light emitting emblem according to claim 1, wherein the shielding plate abuts on the light guide plate.

5. The light emitting emblem according to claim 1, wherein the inclination part is provided only at the outer edge of the light guide plate.

6. The light emitting emblem according to claim 1, wherein the second surface includes a single inclination part.

7. The light emitting emblem according to claim 1, wherein the light guide plate is symmetrical.

8. The light emitting emblem according to claim 1, wherein an optical axis of the light source is directed to the light entering part such that the light incident to the inclination part becomes parallel light in the light guide plate.

9. The light emitting emblem according to claim 1, wherein a part of the light entered into the light guide plate through the light entering part is reflected in a horizontal direction with respect to an optical axis of the light source by the inclination part.

10. The light emitting emblem according to claim 1, wherein the inclination part extends an entire length of the second surface.

11. The light emitting emblem according to claim 1, wherein light is reflected by the inclination part through the guide plate perpendicular to an optical axis of the light source such that the light leaks out through a front of the light guide plate parallel to the optical axis.

12. The light emitting emblem according to claim 1, wherein the inclination part extends inwardly up to a position of the shielding plate.

13. A light emitting emblem according to claim 1, further comprising:

a housing provided with the shielding plate.

14. A light emitting emblem according to claim 1, wherein the board has a through hole into which the shielding plate is inserted.

15. A light emitting emblem comprising:

a board having a first peripheral edge;

a light source arranged at the first peripheral edge;

a light guide plate having a second peripheral edge and an inner side portion, the second peripheral edge having a first surface facing the light source and a second surface opposite to the first surface, the first surface including a light entering part into which light from the light source is incident, and the second surface including an inclination part through which the light incident into the light entering part is reflected to the inner side portion from the second peripheral edge; and

a shielding plate that shields the light from the light source and prevents light not incident from the light entering part from being incident into the inner side portion, wherein the inclination part is positioned at an outer edge of the light emitting emblem from the shielding plate,

the light emitting emblem further comprising;

a housing provided with the shielding plate,

wherein the board has a through hole into which the shielding plate is inserted.