Illuminated logo unit with reflective device

• US 20050018414A1
• Filed: 07/26/2004
• Published: 01/27/2005
• Est. Priority Date: 07/25/2003
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Lee, Chun-Yu, Chiang, Tsung-Wei, Tsai, Ming-Chiang
• Granted Patent: US 7,192,148 B2
• Time in Patent Office: Days
• US Class Current: 362/29
• CPC Class Codes: G09F 13/04 Signs, boards or panels, illuminated from behind the insignia
• CPC Class Codes: G09F 13/0409 Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency arrangements of reflectors G09F13/14
• CPC Class Codes: G09F 13/14 Arrangements of reflectors therein

Abstract

An illuminated logo unit (300) includes a reflective device (320), a pattern panel (301), and an illuminating means (311). The reflective device includes a bottom portion (323) and a circumferential portion (321). The circumferential portion defines a concavity (360). The pattern panel is disposed over the reflective device, and includes a pattern (304) and a transparent body (302). The illuminating means is received in the concavity. The illuminated logo unit further includes a transflective film (305) disposed under the pattern panel opposite to the bottom portion. Virtually all light emitting from the illuminating means is reflected more than once by the circumferential portion, the bottom portion and/or a transflective film before it reaches the pattern. This improves the overall brightness of the illuminated logo unit.

Claims

1. An illuminated logo unit, comprising:

a reflective device including a bottom portion and a circumferential portion, the circumferential portion defining a concavity;

a pattern panel disposed over the reflective device, the pattern panel including a pattern and a transparent body; and

an illuminating means received in the concavity.

2. The illuminated logo unit of claim 1, further comprising a transflective film disposed under the pattern panel opposite to the bottom portion.

3. The illuminated logo unit of claim 2, wherein the transflective film is made of a translucent material.

4. The illuminated logo unit of claim 2, wherein the transflective film is made of a reflective material having apertures formed therein.

5. The illuminated logo unit of claim 1, wherein a circumferential sidewall portion of the transparent body is reflective.

6. The illuminated logo unit of claim 1, wherein the transparent body is made of a highly transparent material.

7. The illuminated logo unit of claim 1, wherein the transparent body comprises at least one colored material.

8. The illuminated logo unit of claim 1, wherein the pattern panel further includes a scattering layer disposed under the transparent body.

9. The illuminated logo unit of claim 8, wherein the scattering layer is formed by mechanical processing or chemical etching of the transparent body itself.

10. The illuminated logo unit of claim 1, wherein the reflective device further comprises a reflective film disposed on an inner surface of the reflective device.

11. The illuminated logo unit of claim 1, wherein the reflective device comprises highly reflective material.

12. The illuminated logo unit of claim 1, wherein the illuminating means comprises a plurality of light emitting diodes or a plurality of organic light emitting diodes.

13. The illuminated logo unit of claim 1, wherein the illuminating means comprises a cold cathode fluorescent tube.

14. The illuminated logo unit of claim 1, wherein the illuminating means is received in the concavity at a mid-elevation thereof.

15. The illuminated logo unit of claim 1, wherein the concavity is annular.

16. An illuminated logo unit, comprising:

a reflective device including a bottom portion and a circumferential portion;

a pattern panel disposed over the reflective device, the pattern panel including a pattern and a transparent body; and

an illuminating means located in the circumferential portion and being unable to directly emit light toward the pattern panel in an upward direction but through a series of reflection via said reflective device.

17. An illuminated logo unit, comprising:

a reflective device including a bottom portion and a circumferential portion;

a pattern panel disposed over the reflective device, the pattern panel including a pattern and a transparent body; and

an illuminating means located under said pattern panel while being unable to directly emit light toward the pattern panel in an upward direction but through a series of reflection via said reflective device.