# US 8,540,397 B2 · Lighting apparatus using light emitting diode

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- Number: US 8,540,397 B2
- Document ID: US8540397B2
- Status: Granted
- Kind: B2
- Application number: 12/863,001
- Filed: 2008-03-21
- Published: 2011-03-03
- Granted: 2013-09-24
- Earliest claimed: 2008-01-15
- Assignees: Amoluxe Co., Ltd.
- Applicants: Jason Jae Gill
- Inventors: Jason Jae Gill
- Web page: https://patentgrep.com/patent/US8540397B2

## CPC

- F21V 29/70: characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21S 8/086: {with lighting device attached sideways of the standard, e.g. for roads and highways}
- F21V 29/75: with fins or blades having different shapes, thicknesses or spacing
- F21V 29/77: with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
- F21V 29/773: {the planes containing the fins or blades having the direction of the light emitting axis}
- F21Y 2115/10: Light-emitting diodes [LED]
- Y10S 362/80: Light emitting diode
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

The invention includes a lamp housing member having a circular upper plate and a side portion formed at the outer circumference of the upper plate, first light emitting diode modules that are provided on a lower surface of the upper plate and are supplied with power to emit light, and second light emitting diode modules that are mounted on the inner surface of the side portion and are supplied with power to emit light. According to the invention, it is possible to increase a light distribution area, achieve illumination with high brightness, and improve flexibility in the road lighting design. In addition, it is possible to easily ensure a cut-off-angle at which pedestrians or drivers cannot directly view the second light emitting diode modules by adjusting the inclination angle of the side portion.

## Claims

### Claim 1

A lighting apparatus using light emitting diodes, comprising:
a lamp housing member that has a circular upper plate and a side portion formed at an outer circumference of the upper plate;
light emitting diode modules that are provided on an inner surface of the side portion; and
a plurality of angle adjusting blocks,
wherein the plurality of the angle adjusting blocks are inserted between the light emitting diode modules and the inner surface of the side portion,
wherein the plurality of the angle adjusting blocks are mounted detachably to the inner surface of the side portion and respectively have inclined planes so as to adjust mounting angles of the light emitting diode modules in lateral and vertical directions,
wherein the plurality of the angle adjusting blocks include three-stage blocks each having an upper inclined portion, a middle inclined portion, and a lower inclined portion that are inclined at different angles or two-stage blocks each having an upper inclined portion and a lower inclined portion that are inclined at different angles,
wherein the angle adjusting blocks are mounted on the inner surface of the side portion of the lamp housing member at intervals in a state where at least one light emitting diode module is mounted on the inclined plane,
wherein some of the plural angle adjusting blocks that are mounted on the inner surface of the side portion of the lamp housing member are different from each other in the number of the light emitting diode modules and in the mounting angles of the light emitting diode modules, and
wherein the angle adjusting blocks that have the same number of the light emitting diode modules and the same mounting angle are symmetrically formed on a reference line passing through the center of the lamp housing member at a point where the lamp housing member is mounted to an arm member of the lamp post.

### Claim 2 (depends on 1)

The lighting apparatus of claim 1, wherein the upper plate is formed so as to be inclined with respect to a horizontal plane.

### Claim 3 (depends on 1)

The lighting apparatus of claim 1, wherein the side portion includes a plurality of inclined planes having different inclination angles.

### Claim 4 (depends on 1)

The lighting apparatus of claim 1, wherein a transparent panel member for covering an opening portion is mounted to the side portion of the lamp housing member.

### Claim 5 (depends on 1)

The lighting apparatus of claim 1, wherein a heat sink for dissipating heat is provided at an upper part of the lamp housing member.

### Claim 6 (depends on 5)

The lighting apparatus of claim 5, wherein a drain outlet capable of draining water is formed in the heat sink.

### Claim 7 (depends on 1)

The lighting apparatus of claim 1, wherein, in the three-stage block, the lower inclined portion has the largest inclination angle with respect to a horizontal line that is parallel to the ground, followed by the middle inclined portion and the upper inclined portion.

### Claim 8 (depends on 1)

The lighting apparatus of claim 1, wherein, in the two-stage block, the inclination angle of the upper inclined portion with respect to the horizontal line parallel to the ground is smaller than that of the lower inclined portion.

### Claim 9 (depends on 1)

The lighting apparatus of claim 1, further comprising at least one light emitting diode module that is provided on a lower surface of the upper plate.