Pixilated LED Light Source for Channel Letter Illumination
First Claim
1. A light source module for providing light to a channel letter device, comprising:
- a first plurality of through-hole LEDs;
a casing, the casing having a first surface and an attachment element configured for attaching the casing to the channel letter device;
the first surface having a length and a first plurality of through-holes extending through the first surface, the first plurality of through-holes being arranged among a sequence of pixel groups;
each one of the sequence of pixel groups having a cluster of through-holes confined to a corresponding one of a sequence of regions set apart a distance from one another along the length of the first surface, wherein the number “
M”
of through-holes in each cluster is greater than or equal to 3 and wherein the number “
N”
of regions in the sequence of regions is greater than or equal to 2;
each one of the sequence of pixel groups further having a second plurality of through-hole LEDs, each one of the second plurality of through-hole LEDs extending through a corresponding one of the cluster of through-holes, wherein the second plurality of through-hole LEDs equals “
M”
in number; and
a printed circuit board housed within the casing, each one of said first plurality of through-hole LEDs being electrically connected to said printed circuit board.
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Accused Products
Abstract
The present invention is an LED module for channel letter illumination utilizing multiple through-hole LEDs in a pixel formation as a light source where one surface mounted LED or other forms of LEDs were previously used. The use of a number of small through-hole LEDs ideally requires that a beam angle between and including 15° and 180° in vertical and horizontal directions, respectively, be utilized. When multiple light sources are used on a module, the distance between light sources is to be between 20 mm and 1 cm. The use of several smaller LEDs reduces the current needed to generate light of appropriate intensity and, thus reduces energy cost and heat generation. The use of smaller LEDs also assists in excess heat dissipation.
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Citations
15 Claims
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1. A light source module for providing light to a channel letter device, comprising:
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a first plurality of through-hole LEDs; a casing, the casing having a first surface and an attachment element configured for attaching the casing to the channel letter device; the first surface having a length and a first plurality of through-holes extending through the first surface, the first plurality of through-holes being arranged among a sequence of pixel groups; each one of the sequence of pixel groups having a cluster of through-holes confined to a corresponding one of a sequence of regions set apart a distance from one another along the length of the first surface, wherein the number “
M”
of through-holes in each cluster is greater than or equal to 3 and wherein the number “
N”
of regions in the sequence of regions is greater than or equal to 2;each one of the sequence of pixel groups further having a second plurality of through-hole LEDs, each one of the second plurality of through-hole LEDs extending through a corresponding one of the cluster of through-holes, wherein the second plurality of through-hole LEDs equals “
M”
in number; anda printed circuit board housed within the casing, each one of said first plurality of through-hole LEDs being electrically connected to said printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A light source module for providing light to a channel letter device, comprising:
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a first plurality of through-hole LEDs; a casing, the casing being enclosed and having a first surface for attaching the first plurality of through-hole LEDs; attachment means for securing the light source module to a wall of the channel letter device; the first surface having a length and a first plurality of through-holes extending through the first surface, the first plurality of through-holes being arranged among a sequence of pixel groups; each one of the sequence of pixel groups having a cluster of through-holes confined to a corresponding one of a sequence of regions set apart a distance from one another along the length of the first surface, wherein the number “
M”
of through-holes in each cluster is greater than or equal to 3 and wherein the number “
N”
of regions in the sequence of regions is greater than or equal to 2;each one of the sequence of pixel groups further having a second plurality of through-hole LEDs, each one of the second plurality of through-hole LEDs extending through a corresponding one of the cluster of through-holes, wherein the second plurality of through-hole LEDs equals “
M”
in number;a printed circuit board housed within the casing, each one of said first plurality of through-hole LEDs being electrically connected to said printed circuit board; epoxy coating applied to the printed circuit board and the first plurality of through-hole LEDs; and connection wires electrically connected to the printed circuit board and extending out of the casing for supplying power to the light source module.
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15. A light source module for providing light to a channel letter device, comprising:
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a first plurality of through-hole LEDs; a casing, the casing being enclosed and having a first surface for attaching the first plurality of through-hole LEDs; attachment means for securing the light source module to a wall of the channel letter device; the first surface having a length and a first plurality of through-holes extending through the first surface, the first plurality of through-holes being arranged among a sequence of pixel groups; each one of the sequence of pixel groups having a cluster of through-holes confined to a corresponding one of a sequence of regions set apart a distance from one another along the length of the first surface, wherein the number “
M”
of through-holes in each cluster is greater than or equal to 3 and wherein the number “
N”
of regions in the sequence of regions is greater than or equal to 2;each one of the sequence of pixel groups further having a second plurality of through-hole LEDs, each one of the second plurality of through-hole LEDs extending through a corresponding one of the cluster of through-holes, wherein the second plurality of through-hole LEDs equals “
M”
in number;a printed circuit board housed within the casing, each one of said first plurality of through-hole LEDs being electrically connected to said printed circuit board; epoxy coating applied to the printed circuit board and the first plurality of through-hole LEDs; connection wires electrically connected to the printed circuit board and extending out of the casing for supplying power to the light source module; and wherein said first plurality of through-hole LEDs is equal in number to M*N.
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Specification