Canadian Patents Database / Patent 2838641 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 2838641
(54) English Title: LED LIGHT
(54) French Title: LUMIERE A DEL
(51) International Patent Classification (IPC):
  • H01L 25/03 (2006.01)
  • H01L 33/48 (2010.01)
  • H01L 33/60 (2010.01)
  • H01L 33/64 (2010.01)
  • F21V 29/70 (2015.01)
  • H01R 33/22 (2006.01)
  • H05B 37/02 (2006.01)
  • H05K 1/00 (2006.01)
  • F21V 19/00 (2006.01)
(72) Inventors (Country):
  • RODINGER, TOMAS (Canada)
  • CHU, GIMMY (Canada)
  • YAN, CHRISTIAN (Canada)
(73) Owners (Country):
  • RODINGER, TOMAS (Canada)
  • CHU, GIMMY (Canada)
  • YAN, CHRISTIAN (Canada)
(71) Applicants (Country):
  • RODINGER, TOMAS (Canada)
  • CHU, GIMMY (Canada)
  • YAN, CHRISTIAN (Canada)
(74) Agent: NORTON ROSE FULBRIGHT CANADA LLP/S.E.N.C.R.L., S.R.L.
(45) Issued: 2015-09-29
(22) Filed Date: 2014-01-10
(41) Open to Public Inspection: 2014-07-23
Examination requested: 2014-07-11
(30) Availability of licence: N/A
(30) Language of filing: English

(30) Application Priority Data:
Application No. Country Date
61/766,291 United States of America 2013-02-19
29/445,982 United States of America 2013-02-19
201310100381.6 China 2013-03-26
14/152,928 United States of America 2014-01-10

English Abstract



An LED light comprises a structural shell formed by folding a flat PCB into a
generally closed three-dimensional polyhedron shape and an electrical
connector
for removably coupling the light to a power source. The PCB comprises a
plurality of LEDs, at least one LED mounted electronically on a plurality of
faces
of the polyhedron, and a driver circuit for driving each LED. The perimeter of
the
PCB is shaped to join adjacent faces. Each LED produces minimal excess heat,
which is partially conducted by a metallic heat sink bridge to the PCB and
dissipated to the air through the PCB and, optionally, through a plurality of
spaces in the shell.


French Abstract

Une lumière à DEL comporte une enveloppe structurelle formée en pliant une carte de circuits imprimés plate en une forme polyèdre généralement tridimensionnelle et un connecteur électrique servant à coupler à distance la lumière à une source d'électricité. La carte de circuits imprimés comprend une pluralité de DEL, au moins une DEL installée électroniquement sur une pluralité de faces du polyèdre et un circuit d'attaque pour alimenter chaque DEL. Le périmètre de la carte de circuits imprimés est de forme telle à joindre les faces adjacentes. Chaque DEL produit un minimum de chaleur résiduelle, qui est partiellement conduite par un pont de puits thermique métallique vers la carte de circuits imprimés et dissipée dans l'air par la carte de circuits imprimés et, facultativement, par une pluralité d'espaces dans l'enveloppe.


Note: Claims are shown in the official language in which they were submitted.


What is claimed is:

1. An illumination device, comprising:
a structural shell comprising a PCB folded into a three-dimensional shape, the

shape comprising a plurality of faces joined together forming a threaded
socket
opening; and
an electrical connector joined to the threaded socket opening to close the
socket opening, the electrical connector for removably coupling the
illumination
device to a power source,
the PCB comprising:
a plurality of light emitting diodes (LEDs) mounted thereon, one or more of
the
plurality of faces comprising at least one of the plurality of LEDs; and
a driver circuit,
wherein the driver circuit electronically connects the plurality of LEDs to
the electrical
connector.
2. The illumination device according to claim 1, wherein the three-dimensional
shape
dissipates heat from inside the three-dimensional shape through the PCB.
3. The illumination device according to claim 1, wherein each of the plurality
of faces
comprises an outer face and a corresponding inner face, the PCB comprising at
least
one outer non-conductive layer and at least one internal conductive layer.
4. The illumination device according to claim 3, wherein a plurality of
bending lines is cut
partially, but not all the way, through the at least one outer non-conductive
layer of the

44

PCB, at a sufficient depth to allow partial bending of the PCB at one or more
angles
along the plurality of bending lines so as to facilitate folding of the PCB
into a polyhedron
shape, while maintaining the integrity of the at least one internal conductive
layer.
5. The illumination device according to claim 3, wherein the at least one
internal conductive
layer is copper.
6. The illumination device according to claim 4, wherein the plurality of
bending lines is cut
by a laser cutting apparatus.
7. The illumination device according to claim 4, wherein the one or more
angles is within
the range of 1 to 90 degrees.
8. The illumination device according to claim 7, wherein the one or more
angles is 63
degrees.
9. The illumination device according to claim 1, wherein at least part of a
perimeter of the
PCB is shaped to interlock at least two of the plurality of faces to each
other.
10. The illumination device according to claim 1, wherein a first face of the
plurality of faces
has a first set of edge teeth on at least part of a perimeter of the first
face, and a second
face of the plurality of faces has a second set of edge teeth on at least part
of a
perimeter of the second face, the second set of edge teeth configured to be
complementary to and lockingly engage with the first set of edge teeth.
11. The illumination device according to claim 10, wherein the electrical
connector is
engagingly connected to at least three of the plurality of faces, said at
least three of the
plurality of faces each having a third set of edge teeth to complementarily
engage
internal components of the electrical connector.
12. The illumination device according to claim 1, wherein the electrical
connector is a light


fitting chosen from the group consisting of a standard Edison screw, a bayonet
mount
and a wedge base.
13. The illumination device according to claim 1, wherein one or more of the
faces of the
three-dimensional shape is a polygon chosen from the group consisting of a
triangle, a
quadrilateral, a pentagon and a hexagon.
14. The illumination device according to claim 12, wherein a plurality of
parts of the PCB are
folded to complement each other without overlap and together assemble to form
one
face of the three-dimensional shape.
15. The illumination device according to claim 13, wherein at least one of the
plurality of
parts of the PCB comprises one of the plurality of LEDs.
16. The illumination device according to claim 10, wherein at least one of the
plurality of
faces complementarily engaged with the internal components of the electrical
connector
also electronically engages with internal components of the electrical
connector.
17. The illumination device according to claim 10, wherein the at least three
of the plurality of
faces mechanically engage with and are secured to the internal components of
the
electrical connector.
18. The illumination device according to claim 16, wherein the mechanical
engagement is
further secured with adhesive.
19. The illumination device according to claim 4, wherein three or more angles
between any
pair of adjacent faces are the same.
20. The illumination device according to claim 4, wherein the polyhedron shape
comprises at
least four faces.

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21. The illumination device according to claim 19, wherein the polyhedron
shape comprises
eleven faces.
22. The illumination device according to claim 4, wherein the polyhedron shape
is chosen
from the group consisting of a Platonic solid and an irregular polyhedron.
23. The illumination device according to claim 14, further comprising an
additional non-
conductive plate shaped and dimensioned to the assembled face, the plate
adhered to
the parts of the assembled face and comprising one or more holes configured to
accept
the one or more LEDs therethrough.
24. The illumination device according to claim 22, wherein the assembled face
comprises an
outer face and a corresponding inner face, the plate being adhered to the
inner face.
25. The illumination device according to claim 22, wherein the plate consists
of non-
energized PCB material.
26. The illumination device according to claim 9, wherein one of the first or
second set of
edge teeth comprises on either side a milled or drilled portion comprising a
cut into the
perimeter of the PCB at ninety degrees to the perimeter for at least the
thickness of the
PCB, the cut then extending ninety degrees parallel to the perimeter at a
width of the
other of the second or first set of edge teeth, the cut then returning to the
perimeter of the
PCB at ninety degrees.
27. The illumination device according to claim 25, further comprising milled
or drilled spaces
cut out of the PCB at the right angle junctions formed therein.
28. The illumination device according to claim 1, comprising at least one LED
on at least one
face of the PCB.
29. The illumination device according to claim 20, comprising three LEDs on
each face of the
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PCB.
30. The illumination device according to claim 11, wherein the light fitting
is an Edison screw
and the illumination device is sized to be 3 inches wide at its widest point,
and 3 inches
in length from the PCB to the end of the fitting, the Edison screw having a
base of 1 inch
in diameter.
31. The illumination device according to claim 29 weighing 85 g.
32. The illumination device according to claim 1, further comprising a
temperature sensor
electronically connected to the driver circuit and configured to sense a
temperature
condition within the three-dimensional shape.
33. The illumination device according to claim 1, further comprising a pulse-
width modulation
controller IC electronically connected to the driver circuit for regulating
current to the
plurality of LEDs.
34. A heat dissipation system in an illumination device, comprising:
a structural shell comprising a thermally conductive PCB folded into a three-
dimensional shape, the shape comprising a plurality of faces joined together
forming
a threaded socket opening; and
an electrical connector joined to the threaded socket opening to close the
socket opening, the electrical connector for removably coupling the
illumination
device to a power source,
the thermally conductive PCB comprising:
a plurality of LEDs mounted electronically thereon, each of the plurality of
LEDs
generating heat and electronically connected to one of the plurality of faces;
and
a driver circuit, the driver circuit electronically coupled to the electrical
connector,
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wherein heat generated from the plurality of LEDs is partially dissipated
inward by
conduction via the thermally conductive PCB and outward to the environment by
convection.
35. The heat dissipation system according to claim 34, wherein each of the
plurality of faces
comprises an outer face and a corresponding inner face, the thermally
conductive PCB
comprising at least three layers, including at least one outer non-conductive
layer and at
least one internal conductive layer, the internal conductive layer conducting
the heat from
the plurality of LEDs throughout the PCB.
36. The heat dissipation system according to claim 35, further comprising a
plurality pairs of
exposed pads, each of the plurality of pairs of exposed pads being located
adjacent one
of the plurality of LEDs and being thermally joined to the internal conductive
layer and
inner face.
37. The heat dissipation system according to claim 36, wherein each of the
plurality of LEDs
comprises a heat pad for conducting heat away from the LED, each heat pad
being in
contact with a heat sink, each heat sink coupled to each of the plurality of
pairs of
exposed pads.
38. The heat dissipation system according to claim 37, wherein each heat sink
comprises
metal chosen from the group consisting of copper and aluminum.
39. The heat dissipation system according to claim 37, wherein each heat sink
is coupled to
the heat pad of each of the plurality of LEDs with heat conductive silicone or
solder.

49


40. The heat dissipation system according to claim 37, wherein each heat sink
is coupled to
each of the plurality of pairs of exposed pads with heat conductive silicone
or solder.
41. The heat dissipation system according to claim 37, wherein each heat sink
comprises:
connecting portions, for contacting the heat sink to each of the plurality of
pairs of
exposed pads;
a contacting portion, for contacting the heat sink to the heat pad; and
joining portions, for joining the contacting portion to the two connecting
portions;
each of the connecting portions, contacting portion and joining portions being
thermally
conductive to partially dissipate heat from the heat pad to each of the
plurality of pairs of
exposed pads, the exposed pads further partially conducting heat to the
internal
conductive layer, the internal conductive layer further partially dissipating
the heat
outward to the environment.
42. The heat dissipation system according to claim 41, wherein the connecting
portions,
contacting portion and joining portions of each heat sink consist of one piece
of stamped
metal.
43. The heat dissipation system according to claim 41, wherein the connecting
portions are
the same width as the joining portions.
44. The heat dissipation system according to claim 41, wherein the width of
the connecting
portions is bigger than the width of the joining portions.
45. The heat dissipation system according to claim 41, wherein one or more of
the
connecting portions, contacting portion and joining portions are fin-shaped to
provide
additional surface area to each heat sink for heat dissipation.
46. The heat dissipation system according to claim 34, further comprising a
plurality of


spaces in at least part of a perimeter of the thermally conductive PCB to
further allow
heat to dissipate from within the three-dimensional shape to the environment.
47. The heat dissipation system according to claim 34, further comprising a
plurality of
ventilation spaces in the thermally conductive PCB to further allow heat to
dissipate from
inside the three-dimensional shape to the environment, each of the plurality
of ventilation
spaces sized to prevent insertion of a probe of at least 2 mm in diameter.
48. The heat dissipation system according to claim 47, wherein each of the
plurality of faces
comprises a plurality of ventilation spaces, each of the plurality of
ventilation spaces
having a diameter of 8 mm or less.
49. The heat dissipation system according to claim 47, wherein each of the
plurality of
ventilation space is located proximate an LED.
50. The heat dissipation system according to claim 34, wherein the temperature
of each of
the plurality of LEDs does not exceed 90 degrees Celcius when the illumination
device is
energized at ambient conditions.
51. The heat dissipation system according to claim 50, wherein the temperature
of each of
the plurality of LEDs does not exceed 70 degrees Celcius when the illumination
device is
energized at ambient conditions.
52. The heat dissipation system according to claim 35, wherein both inner and
outer faces
are coated in non-conductive black paint.
53. The heat dissipation system according to claim 35, wherein the inner face
is coated in
non-conductive black paint and the outer face is coated in non-conductive
white paint.
54. The heat dissipation system according to claim 34, further comprising a
power supply,
the power supply configured to provide 4 W of power to the plurality of LEDs,
the power

51


supply being 95% efficient, 5% being lost as heat from the power supply, the
lost heat
being dissipated by the thermally conductive PCB.
55. The heat dissipation system according to claim 54, wherein the power from
the power
supply drives each of the plurality of LEDs, each of the plurality of LEDs
being 30%
efficient, 70% being lost as heat, at least a portion of the lost heat from
each of the
plurality of LEDs being dissipated inward via the thermally conductive PCB and
outward
to the environment.
56. The heat dissipation system according to claim 34, further comprising a
temperature
sensor electronically connected to the driver circuit and configured to sense
a
temperature condition within the three-dimensional shape.
57. The heat dissipation system according to claim 56, wherein the sensed
temperature
condition is at least 90 degrees C over a period of 10 seconds.
58. The heat dissipation system according to claim 56, wherein sensing the
temperature
condition causes the driver circuit to lower current in the illumination
device to prevent
circuit failure.
59. The heat dissipation system according to claim 56, wherein current in the
illumination
device is configured to be lowered by almost six times when the temperature
condition is
sensed.
60. The heat dissipation system according to claim 56 wherein sensing the
temperature
condition causes the driver circuit to stop current in the illumination device
to prevent
circuit failure.
61. The heat dissipation system according to claim 57, wherein 6 W of heat is
generated by
the illumination device and dissipated to the environment.

52


62. The heat dissipation system according to claim 34, configured to dissipate
excess heat
generated by the illumination device without requiring an externally visible
heat sink.
63. A PCB configured to be assembled into the illumination device of claim 1,
the illumination
device having the three-dimensional shape and connected to the electrical
connector,
the PCB comprising:
at least three layers, comprising one outer non-conductive layer and at least
one
internal conductive layer;
a plurality of holes in the PCB;
a plurality of LEDs mounted on the PCB, each of the plurality of holes sized
to
complementarily fit each of the plurality of LEDs;
a plurality of exposed pads, each of the plurality of exposed pads thermally
joined
to the at least one internal conductive layer;
a plurality of bending lines precut partially through the one outer non-
conductive
layer;
a plurality of threaded edges forming the threaded socket opening when folded
along the plurality of bending lines;
each of the plurality of LEDs protruding out the outer non-conductive layer
and
electronically connected to a pair of the plurality of exposed pads; and
the driver circuit electronically disposed on the at least one internal
conductive layer and
connected to each of the plurality of LEDs, the driver circuit configured to
convert an
incoming voltage to a lower voltage sufficient to drive each of the plurality
of LEDs.
64. The PCB according to claim 63, further comprising a temperature sensor
electronically
53


connected to the circuit and configured for lowering the circuit current on
the occurrence
of a sensed temperature condition to prevent circuit failure.
65. The PCB according to claim 63, further comprising a pulse-width modulation
controller IC
electronically connected to the circuit for regulating current to the
plurality of LEDs.
66. The PCB according to claim 63, comprising interlocking complementary edge
teeth along
a plurality of sides of the PCB perimeter.
67. The PCB according to claim 66, the PCB shaped as a flat, unfolded
polyhedron.
68. The PCB according to claim 67, wherein the unfolded polyhedron is
configured to be
shaped into a folded dodecahedron comprising eleven PCB faces and one open
face.
69. The PCB according to claim 68, wherein the plurality of bending lines is
at a sufficient
depth to allow partial bending of the PCB at one or more angles along the
plurality of
bending lines so as to facilitate folding of the PCB into a polyhedron shape,
folded close,
while maintaining the integrity of the at least one internal conductive layer.
70. The PCB according to claim 69, comprising fifteen shapes defined by the
plurality of
bending lines, five of the shapes having five sides each, five of the shapes
having six
sides each and the remaining five shapes having at least three sides each,
wherein:
the first, third, fifth, seventh and ninth shapes each have five sides and are
of the same
general dimensions;
the second, fourth, sixth, eight and tenth shapes each have six sides and are
of the
same general dimensions;
the eleventh, twelfth, thirteenth, fourteenth and fifteenth shapes each have a
geometry
configured to together form an assembled sixteenth shape, the assembled
sixteenth

54


shape being of the same general dimensions as the first, third, fifth, seventh
and ninth
shapes;
the first five-sided shape has a common side with a side of the second six-
sided shape;
the second six-sided shape has a common side with a side of the third five-
sided shape,
the two common sides of the second six-sided shape being adjacent sides;
the third five-sided shape has a common side with a side of the fourth six-
sided shape,
the two common sides of the third five-sided shape being adjacent sides
without
overlapping any shape,
the fourth six-sided shape has a common side with a side of the fifth five-
sided shape,
the two common sides of the fourth six-sided shape being adjacent sides
without
overlapping any shape,
the fifth five-sided shape has a common side with a side of the sixth six-
sided shape, the
two common sides of the fifth five-sided shape being adjacent sides without
overlapping
any shape,
the sixth six-sided shape has a common side with a side of the seventh five-
sided shape,
the two common sides of the sixth six-sided shape being adjacent sides without

overlapping any shape,
the seventh five-sided shape has a common side with a side of the eighth six-
sided
shape, the two common sides of the seventh five-sided shape being adjacent
sides
without overlapping any shape,
the eighth six-sided shape has a common side with a side of the ninth five-
sided shape,


the two common sides of the eighth six-sided shape being adjacent sides
without
overlapping any shape,
the ninth five-sided shape has a common side with a side of the tenth six-
sided shape,
the two common sides of the ninth five-sided shape being adjacent sides
without
overlapping any shape,
the first, third, fifth, seventh and ninth shapes each having a common side
with a
respective side of the eleventh, twelfth, thirteenth, fourteenth and fifteenth
shapes
without overlapping any shape, and
the second, fourth, sixth, eight and tenth shapes each having a tail extending
from one
side in the same direction without overlapping any shape, each tail having one
side being
an extension of one side of each of the second, fourth, sixth, eight and tenth
shapes and
a shorter sixth side extending outward without overlapping any shape;
each tail having fitting teeth protruding from each of the sixth sides.
71. A PCB template configured to be assembled into a three-dimensional shape
having a
plurality of faces joined together forming a threaded socket opening, the
shape
connected to a power source by a connector which closes the threaded socket
opening,
the PCB template comprising:
at least three layers, comprising one outer non-conductive layer and at least
one internal
conductive layer;
a plurality of holes drilled or milled through the PCB template;
a plurality of LEDs mounted on the PCB template, each of the plurality of
holes sized to
complementarily fit each of the plurality of LEDs;

56


a plurality of exposed pads, each of the plurality of exposed pads thermally
joined to the
at least one internal conductive layer;
a plurality of bending lines cut partially through the one outer non-
conductive
layer;
a plurality of threaded edges forming the threaded socket opening when folded
along the plurality of bending lines;
each of the plurality of LEDs protruding out the outer non-conductive layer
and
electronically connected to at least one of the plurality of exposed pads; and
a driver circuit electronically disposed on the at least one inner conductive
layer and
connected to each LED, the driver circuit configured to convert an incoming
voltage to a
lower voltage sufficient to drive the plurality of LEDs.
72. The PCB template according to claim 71, wherein the shape is chosen from
the group
consisting of recognizable shapes and abstract shapes.
73. A method of assembling the PCB template according to claim 71, comprising:
folding a common side of a twelfth shape and a third five-sided shape to an
angle of 117
degrees between the two shapes;
folding a respective common sides of a ninth and a tenth shape, an eighth and
the ninth
shape, a seventh and the eighth shape, a sixth and a seventh shape, a fifth
and the sixth
shape, a fourth and the fifth shape, a third and the fourth shape, and a
second and the
third shape, each at an angle of 117 degrees between the respective two
shapes;

57


aligning and interlocking edge teeth of respective complementary sides of the
eighth to
the tenth shape, the sixth to the eighth shape, the fourth to the sixth shape,
the second to
the fourth shape, the tenth to the second shape, the seventh to the ninth
shape, the fifth
to the seventh shape, and the third to the fifth shape;
providing and coupling a connector to the threaded socket opening formed by
the fitting
teeth on the tails of the second, fourth, sixth, eight and tenth shapes;
folding the respective common sides of the fifth and thirteenth shape, seventh
and
fourteenth shape, and ninth and fifteenth shape, each at an angle of 117
degrees
between the respective two shapes;
folding the common side of the first and second shape;
aligning and interlocking the edge teeth of respective complementary sides of
a first side
of the first to the third shape, the ninth to a second side of the first shape
and the tenth to
a third side of the first shape; and folding the common side of the first and
eleventh
shape.
74. The method of claim 73, further comprising:
providing a non-energized PCB having the same general dimension as the first,
third,
fifth, seventh and ninth shapes;
before the step of folding the common side of the twelfth shape and the third
five-sided
shape, adhering the non-energized PCB to the twelfth shape with a side of the
non-
energized PCB aligned with the common side of the twelfth shape and the third
five-
sided shape;
before folding the common side of the first and second shape, adhering the
other side of
the non-energized PCB to the thirteenth, fourteenth and fifteenth shapes; and

58


after folding the common side of the first and eleventh shape, adhering the
other side of
the non-energized PCB to the eleventh shape to complete the assembled
sixteenth
shape.
75. An illumination device, comprising:
a structural shell comprising a PCB folded into a three-dimensional shape, the
shape
comprising a plurality of faces joined together forming a threaded opening and

comprising a plurality of LEDs mounted electronically thereon, each of the
plurality of
LEDs electronically connected to the shell and a driver circuit;
an electrical connector joined to the shell, the electrical connector for
removably coupling
the illumination device to a power source, the driver circuit electronically
coupled to the
electrical connector, the electrical connector received in said threaded
opening to close
the structural shell and
a power supply electronically connected to the driver circuit and configured
to provide
power to the plurality of LEDs,
wherein the illumination device is configured to yield light output ranging
from at least
1,200 to at least 1,800 lumens.
76. The illumination device according to claim 75, wherein the power provided
to the
illumination device ranges from 10 W to 12 W.
77. The illumination device according to claim 76, wherein the power is 10 W
and the light
output is at least 1,200 lumens.
78. The illumination device according to claim 76, wherein the power is 12 W
and the light
output is at least 1,600 lumens.

59


79. The illumination device according to claim 76, wherein the power is 12 W
and the light
output is at least 1,800 lumens.
80. The illumination device according to claim 75, wherein each of the
plurality of LEDs is
rated for 350 mA of current.
81. The illumination device according to claim 75, wherein the same or less
than the rated
current is provided to each of the plurality of LEDs.
82. The illumination device according to claim 78, wherein a fifth to a half
of the rated current
is provided to each of the plurality of LEDs.
83. The illumination device according to claim 75, comprising eleven to fifty-
five LEDs.
84. The illumination device according to claim 75, wherein the shell comprises
a plurality of
faces and an open end, and one to five LEDs coupled to each of the plurality
of faces.
85. The illumination device according to claim 84, wherein each LED is
configured to yield
from 22-164 lumens.
86. The illumination device according to claim 75, having a color rendering
index of at least
70.
87. The illumination device according to claim 75, having a correlated color
temperature in
the range of 2700 -6000K.
88. The illumination device according to claim 75, wherein each of the
plurality of LEDs has
a rated lifetime of at least 30,000 hours.
89. The illumination device according to claim 75, wherein each of the
plurality of LEDs
comprises a package having a silver reflective base.



90. The illumination device according to claim 75, having a total weight of
100 grams.
91. The illumination device according to claim 75, wherein the light output is
ominidirectional.
92.A method of optimizing the efficiency of an omnidirectional illumination
device,
comprising:
a) providing a structural shell, the shell having a plurality of folded sides
joined together
forming a threaded opening, each side facing a different direction; an
electrical connector
joined to the threaded opening to close the threaded opening,
b) providing a plurality of LEDs, at least one of the plurality of LEDs being
electronically
mounted on each of the plurality of sides, each of the plurality of LEDs being
rated at an
LED current;
c) providing a driver circuit electronically connected to the plurality of
LEDs;
d) providing a power supply electronically connected to the driver circuit and
configured
to provide power to the plurality of LEDs, the power supply being 95%
efficient; and
e) driving each of the plurality of LEDs at a driving current, the driving
current being less
than or equal to the rated current, the illumination device configured to
yield light output
of between 1,200 to 1,800 lumens.

61


A single figure which represents the drawing illustrating the invention.

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Title Date
(22) Filed 2014-01-10
Examination Requested 2014-07-11
(41) Open to Public Inspection 2014-07-23
(45) Issued 2015-09-29

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Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Filing $200.00 2014-01-10
Request for Examination $400.00 2014-07-11
Final $150.00 2015-07-21
Maintenance Fee - Patent - New Act 2 2016-01-11 $50.00 2015-10-16
Maintenance Fee - Patent - New Act 3 2017-01-10 $50.00 2017-01-09
Maintenance Fee - Patent - New Act 4 2018-01-10 $50.00 2018-01-04

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Abstract 2014-08-06 1 15
Description 2014-08-06 46 1,844
Drawings 2014-08-06 24 547
Abstract 2014-01-10 1 15
Description 2014-01-10 43 1,776
Claims 2014-01-10 18 600
Drawings 2014-01-10 28 679
Representative Drawing 2014-06-26 1 12
Cover Page 2014-08-26 2 49
Claims 2014-08-06 13 419
Claims 2015-01-20 18 586
Claims 2015-05-29 18 637
Cover Page 2015-09-02 1 44
Prosecution-Amendment 2014-08-06 80 2,511
PCT 2014-08-06 13 1,047
Prosecution-Amendment 2014-08-06 1 40
Prosecution-Amendment 2014-05-26 1 43
Correspondence 2014-05-26 1 43
Correspondence 2014-05-28 1 12
Prosecution-Amendment 2014-07-11 1 36
Prosecution-Amendment 2014-10-21 1 3
Prosecution-Amendment 2014-10-27 12 677
Prosecution-Amendment 2015-01-20 22 744
Correspondence 2015-01-20 2 74
Correspondence 2015-02-13 1 22
Correspondence 2015-02-13 1 25
Prosecution-Amendment 2015-03-02 13 777
Prosecution-Amendment 2015-05-29 23 841
Correspondence 2015-07-21 1 28
Fees 2015-10-16 1 33
Correspondence 2017-04-21 2 68
Correspondence 2017-05-05 1 22
Correspondence 2017-05-05 1 26