# US 5,703,719 A · Reflector road sign with self-provided light means

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- Number: US 5,703,719 A
- Document ID: US5703719A
- Status: Granted
- Kind: A
- Application number: 08/784,496
- Filed: 1997-01-17
- Granted: 1997-12-30
- Earliest claimed: 1997-01-17
- Inventors: Judy Chen
- Web page: https://patentgrep.com/patent/US5703719A

## CPC

- F21S 9/037: {the solar unit and the lighting unit being located within or on the same housing}
- E01F 9/559: illuminated
- F21V 7/0091: {using total internal reflection}
- F21V 15/04: Resilient mountings, e.g. shock absorbers {(shock absorbing devices of vehicle headlamp housings B60Q1/0491; in general F16F15/04)}
- F21W 2111/02: for roads, paths or the like
- F21Y 2115/10: Light-emitting diodes [LED]
- Y02B 20/72: in street lighting
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- E01F: ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- 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
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

A reflector road sign including a reflector body made of a tempered glass having Fe.sub.2 O.sub.3 content below 0.3%, a casing made to receive the reflector body, a solar lighting system installed in the reflector body, the solar lighting system including a LED (light emitting diode) lamp, a solar cell assembly, a rechargeable battery connected to the solar cell assembly, a control circuit connected to the rechargeable battery and the LED lamp and controlling the LED lamp to operate when the intensity of ambient light drops below a predetermined level, and a reflecting device mounted around the LED lamp to reflect light in desired directions.

## Claims

### Claim 1

A reflector road sign comprising a reflector body made of a tempered glass; a casing made to receive said reflector body, wherein said reflector body has a bottom chamber; a solar lighting system is installed in the bottom chamber of said reflector body, said solar lighting system comprising a LED (light emitting diode) lamp, a solar cell assembly, a rechargeable battery connected to said solar cell assembly, a control circuit connected to said rechargeable battery and said LED lamp and controlling said LED lamp to operate when an intensity of ambient light drops below a predetermined level, and a reflecting device mounted around said LED lamp to reflect light.

### Claim 2 (depends on 1)

The reflector road sign of claim 1 wherein flexible stuffing material is filled in said bottom chamber of said reflector body around said solar lighting system to protect said solar lighting system against shock waves.

### Claim 3 (depends on 2)

The reflector road sign of claim 2 wherein the bottom chamber of said reflector body is covered with a flexible insulative cover plate to stop water from passing to an inside of said reflector body.

### Claim 4 (depends on 1)

The reflector road sign of claim 1 further comprising a layer of bonding resin covered over an inside wall of said casing for binding said casing and said reflector body together.

### Claim 5 (depends on 1)

The reflector road sign of claim 1 wherein said reflector body is peripherally covered with a reflecting paper.

### Claim 6 (depends on 1)

The reflector road sign of claim 1 wherein said reflector body is peripherally coated with a layer of reflecting coating.

### Claim 7 (depends on 1)

The reflector road sign of claim 1 wherein the reflecting device of said solar lighting system comprises a shield covered around said LED lamp, said shield having an axial bottom center hole which receives said LED lamp, and a tapered top opening narrowing toward said axial bottom center hole.

### Claim 8 (depends on 7)

The reflector road sign of claim 7 wherein the tapered top opening of the shield of the reflecting device of said solar lighting system is peripherally coated with a reflecting coating.

### Claim 9 (depends on 1)

The reflector road sign of claim 1 wherein the reflecting device of said solar lighting system comprises a shield covered around said LED lamp, said shield having an axial bottom center hole which receives said LED lamp, and a V-shaped top edge.

### Claim 10 (depends on 8)

The reflector road sign of claim 8 wherein the V-shaped top edge of the shield of the reflecting device of said solar lighting system is covered with a reflecting coating.

### Claim 11 (depends on 1)

The reflector road sign of claim 1 wherein said control circuit controls said LED lamp to flash when the intensity of ambient light drops below the predetermined level.

### Claim 12 (depends on 1)

The reflector road sign of claim 1 wherein said tempered glass has Fe.sub.2 O.sub.3 content below 0.3%.