Apparatus with Lighting Units

Patent metadata

Field	Value
Publication number	US-2017132958-A1
Application number	US-201715413277-A
Country	US
Kind code	A1
Filing date	Jan 23, 2017
Priority date	Jul 30, 2012
Publication date	May 11, 2017
Grant date	—

Abstract

An apparatus includes a display surface having a substantially rectangular region with a width of twenty-four feet. The region of the display surface has visual media content displayed thereon. A first lighting unit includes a number of light emitting diodes (LEDs) and optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED. The first lighting unit is configured to illuminate the region of the display surface so that the visual media content on the region of the display surface can be viewed without additional lighting. A second lighting unit is laterally spaced from the first lighting unit along the width of region of the display surface. The second lighting unit includes a number of LEDs and optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED.

First claim

1 . An apparatus comprising:
a display surface having a substantially rectangular region with a width of twenty-four feet, the region of the display surface having visual media content displayed thereon; a first lighting unit including a plurality of light emitting diodes (LEDs) and a plurality of optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED, wherein the first lighting unit is configured to illuminate across the region of the display surface so that all of the visual media content on the region of the display surface can be viewed without additional lighting; and a second lighting unit laterally spaced from the first lighting unit along the width of the region of the display surface, the second lighting unit including a plurality of LEDs and a plurality of optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED, wherein the second lighting unit is configured to illuminate across the region of the display surface so that all of the visual media content on the region of the display surface can be viewed without additional lighting.

2 . The apparatus of claim 1 , wherein the optical elements of the first and the second lighting units are arranged so that areas beyond edges of the region of the display surface receive minimum illumination.

3 . The apparatus of claim 1 , wherein the plurality of optical elements and the associated LEDs of the first and the second lighting units are spaced to avoid hot spots on the region of the display surface.

4 . The apparatus of claim 1 , wherein the LEDs of the first lighting unit are arranged in only a first row and a second row on a first substrate, and wherein the LEDs of the second lighting unit are arranged in only a first row and a second row on a second substrate.

5 . The apparatus of claim 1 , wherein each optical element of the plurality of optical elements of the first and the second lighting units comprises a first part, a second part, and a third part, wherein the first part comprises a first curved surface, wherein the second part comprises a second curved surface that intersects with the first curved surface at a region between the first part and the second part, wherein the first part and the second part each have a peak that is spaced from the region between the first part and the second part, and wherein the third part extends beyond the region between the first part and the second part in a direction away from the associated LED.

6 . The apparatus of claim 1 , wherein each optical element of the plurality of optical elements of the first and the second lighting units comprises:
a first side, a second side opposite the first side, and a third side perpendicular to the first side and the second side; a first element comprising a first curved surface disposed at the first side; a second element comprising a second curved surface disposed at the second side, wherein the second curved surface intersects with the first curved surface at an acute angle in a region between the first element and the second element; and a third element disposed at the third side, wherein the third element extends beyond the first element and the second element in a direction away from the associated LED.

7 . The apparatus of claim 1 , wherein each optical element of the plurality of optical elements of the first and the second lighting units comprises:
a first side, a second side opposite the first side, and a third side perpendicular to the first side and the second side; a first element disposed at the first side; a second element disposed at the second side; a third element disposed at the third side; wherein the third element extends beyond the first element and the second element in a direction away from the associated LED; wherein the first element includes a first outer surface and a first inner surface facing the associated LED and the second element includes a second outer surface and a second inner surface facing the associated LED; wherein the first inner surface is located at a first nearest distance from the associated LED and the second inner surface is located at a second nearest distance from the associated LED; and wherein the first inner surface and the second inner surface connect at a connection region that is at a third nearest distance from the associated LED, wherein the third nearest distance is shorter than either the first nearest distance or the second nearest distance.

8 . The apparatus of claim 1 , wherein the display surface has a width of forty-eight feet along an upper edge and a lower edge of the display surface and a height of fourteen feet along a left side edge and a right side edge of the display surface, wherein the region is located between the lower edge and the upper edge near the left side edge, wherein the display surface further comprises a second region that is located between the lower edge and the upper edge near the right side edge, the second region having a width of twenty-four feet, wherein the second region of the display surface has visual media content displayed thereon, and wherein the apparatus further comprises:
a third lighting unit including a plurality of LEDs and a plurality of optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED, wherein the third lighting unit is configured to illuminate the second region of the display surface so that the visual media content on the second region of the display surface can be viewed without additional lighting; and a fourth lighting unit laterally spaced from the third lighting unit along the width of second region of the display surface, the fourth lighting unit including a plurality of LEDs and a plurality of optical elements arranged over the plurality of LEDs such that each optical element overlies only one associated LED, wherein the fourth lighting unit is configured to illuminate the second region of the display surface so that the visual media content on the second region of the display surface can be viewed without additional lighting.

9 . The apparatus of claim 8 , wherein each optical element of the plurality of optical elements of the third and the fourth lighting units comprises a first part, a second part, and a third part, wherein the first part comprises a first curved surface, wherein the second part comprises a second curved surface that intersects with the first curved surface at a region between the first part and the second part, wherein the first part and the second part each have a peak that is spaced from the region between the first part and the second part, and wherein the third part extends beyond the region between the first part and the second part in a direction away from the associated LED.

10 . An apparatus comprising:
a display surface having visual media content located thereon; and a lighting assembly that comprises a first lighting unit and a second lighting unit; wherein the first lighting unit includes a first circuit board, a first plurality of LEDs arranged on the first circuit board, and a first plurality of optical elements; wherein the second lighting unit includes a second circuit board, a second plurality of LEDs arranged on the second circuit board, and a second plurality of optical elements; wherein each optical element of the first plurality of optical elements and the second plurality of optical elements overlies a respective one of the LEDs, each optical element being configured to redirect light from the respective one of the LEDs; wherein the lighting assembly is configured to simultaneously direct light from the first lighting unit a

Assignees

• Ultravision Tech Llc

Inventors

• Auyeung David Siucheong
• Hall William Y
• Magarill Simon

Classifications

• G09F13/02

  Signs, boards, or panels, illuminated by artificial light sources positioned in front of the insignia · CPC title

• F21V23/002

  Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm · CPC title

• F21V29/89

  Metals · CPC title

• F21Y2105/10

  comprising a two-dimensional [2D] array of point-like light-generating elements · CPC title

• F21V31/005

  Sealing arrangements therefor · CPC title