IP Library › Granted Patent US 7,963,665
Granted Patent B2
US 7,963,665 · App. 12/400,986 · Granted Jun 21, 2011

Vehicle light and LED package

Assignee: Stanley Electric Co., Ltd.
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Quick Facts
Patent No.
US 7,963,665
App. No.
12/400,986
Granted
Jun 21, 2011
Kind
B2
Abstract

A vehicle light having a plurality of LED light sources can be configured to be capable of preventing or suppressing emission of glaring light. An LED package with a plurality of LED light emitting elements can be provided. The vehicle light can include a plurality of LED light sources emitting light with a dominant wavelength that falls within a wavelength range of light that is emitted from an incandescent bulb and which has passed through a filter with a specified color. The respective dominant wavelengths can be different from one another. The LED package can include a plurality of LED elements emitting light that has a dominant wavelength which falls within a wavelength range of light that is emitted from an incandescent bulb and which has passed through a filter with a specified color. The respective dominant wavelengths can be different from one another.

Claims (38)

1. A vehicle light comprising a plurality of LED light sources including at least two LED light sources having mutually different dominant wavelengths that fall within a predetermined wavelength range of light, and a controller configured to control respective outputs of the plurality of LED light sources;

wherein the predetermined wavelength range of light is located within a wavelength range for light emitted from a white light source using a filament and wavelength converted by passing through a color filter;

wherein the predetermined wavelength range converted by the color filter is from 600 nm to 700 nm;

wherein the controller controls the outputs of the plurality of LED light sources by matching spectral energy characteristics associated with each of the plurality of LED light sources to a predetermined spectral energy characteristic; and

wherein the spectral energy characteristics are derived by multiplying a spectral energy of the light emitted from respective ones of the plurality of LED light sources by a spectral luminous efficacy and the predetermined spectral energy characteristic is derived by multiplying a spectral energy of light emitted from the white light source and wavelength converted by the filter by the spectral luminous efficacy.

2. The vehicle light according to claim 1 , wherein the plurality of LED light sources are arranged at regular intervals of 15 mm or less.

3. The vehicle light according to claim 1 , wherein each of the plurality of LED light sources has a reflector configured to reflect the light emitted from a respective one of the plurality of LED light sources in a uniform pattern.

4. The vehicle light according to claim 3 , wherein each of the LED light sources has a lens configured to diffuse at least part of the light emitted from a respective one of the plurality of LED light sources.

5. The vehicle light according to claim 4 , wherein the plurality of LED light sources define at least a portion of one of a stop light and a direction indicator light for a vehicle.

6. An LED package comprising a plurality of LED light sources including at least two LED light sources having mutually different dominant wavelengths that fall within a predetermined wavelength range of light, and a controller configured to control respective outputs of the plurality of LED light sources;

wherein the predetermined wavelength range of light is located within a wavelength range for light emitted from a white light source using a filament and wavelength converted by passing through a color filter;

wherein the predetermined wavelength range converted by the color filter is from 600 nm to 700 nm;

wherein the controller controls the outputs of the plurality of LED light sources by matching spectral energy characteristics associated with each of the plurality of LED light sources to a predetermined spectral energy characteristic; and

wherein the spectral energy characteristics are derived by multiplying a spectral energy of the light emitted from respective ones of the plurality of LED light sources by a spectral luminous efficacy and the predetermined spectral energy characteristic is derived by multiplying a spectral energy of light emitted from the white light source and wavelength converted by the filter by the spectral luminous efficacy.

7. A vehicle light comprising a plurality of LED light sources, each of the LED light sources emitting light having a dominant wavelength that falls within a predetermined wavelength range of light, and a controller configured to control respective outputs of the plurality of LED light sources;

wherein the predetermined wavelength range is located within a wavelength range for light that is emitted from an incandescent bulb and which has passed through a filter with a specified color;

wherein each of the dominant wavelengths is different from another one of the dominant wavelengths;

wherein the predetermined wavelength range converted by the color filter is from 600 nm to 700 nm;

wherein the controller controls the outputs of the plurality of LED light sources by matching spectral energy characteristics associated with each of the plurality of LED light sources to a predetermined spectral energy characteristic; and

wherein the spectral energy characteristics are derived by multiplying a spectral energy of the light emitted from respective ones of the plurality of LED light sources by a spectral luminous efficacy and the predetermined spectral energy characteristic is derived by multiplying a spectral energy of light emitted from the incandescent bulb and wavelength converted by the filter by the spectral luminous efficacy.

8. The vehicle light according to claim 7 , wherein the plurality of LED light sources are arranged at regular intervals of 15 mm or less.

9. The vehicle light according to claim 7 , wherein each of the plurality of LED light sources has a reflector configured to reflect the light emitted from a respective one of the plurality of LED light sources in a uniform pattern.

10. The vehicle light according to claim 9 , wherein each of the LED light sources has a lens configured to diffuse at least part of the light emitted from a respective one of the plurality of LED light sources.

11. An LED package comprising a plurality of LED light sources, each of the plurality of LED light sources emitting light having a dominant wavelength that falls within a predetermined wavelength range of light, and a controller configured to control respective outputs of the plurality of LED light sources;

wherein the predetermined wavelength range of light is located within a wavelength range for light that is emitted from an incandescent bulb and which has passed through a filter with a specified color;

wherein each of the dominant wavelengths is different from another one of the dominant wavelengths;

wherein the predetermined wavelength range converted by the color filter is from 600 nm to 700 nm;

wherein the controller controls the outputs of the plurality of LED light sources by matching spectral energy characteristics associated with each of the plurality of LED light sources to a predetermined spectral energy characteristic; and

wherein the spectral energy characteristics are derived by multiplying a spectral energy of the light emitted from respective ones of the plurality of LED light sources by a spectral luminous efficacy and the predetermined spectral energy characteristic is derived by multiplying a spectral energy of light emitted from the incandescent bulb and wavelength converted by the filter by the spectral luminous efficacy.

12. A vehicle light comprising a plurality of LED light sources including at least two LED light sources having mutually different dominant wavelengths that fall within a predetermined wavelength range of light, and a controller configured to control respective outputs of the plurality of LED light sources;

wherein the predetermined wavelength range of light is located within a wavelength range for light emitted from a white light source and which has passed through a filter;

wherein one of the two LED light sources with the mutually different dominant wavelengths has a high relative spectral energy distribution with a maximum energy intensity, and another one of the two LED light sources has a low relative spectral energy distribution that overlaps with the high relative spectral energy distribution crossing at a point where an energy intensity of the another one of the two LED light sources is less than or substantially equal to 50% of the maximum energy intensity;

wherein the controller controls the outputs of the plurality of LED light sources by matching spectral energy characteristics associated with each of the plurality of LED light sources to a predetermined spectral energy characteristic; and

wherein the spectral energy characteristics are derived by multiplying a spectral energy of the light emitted from respective ones of the plurality of LED light sources by a spectral luminous efficacy and the predetermined spectral energy characteristic is derived by multiplying a spectral energy of light emitted from the white light source and wavelength converted by the filter by the spectral luminous efficacy.

13. The vehicle light according to claim 7 , wherein each of the plurality of LED light sources has a reflector configured to reflect the light emitted from a respective one of the plurality of LED light sources in a uniform pattern.

14. The vehicle light according to claim 7 , wherein each of the LED light sources has a lens configured to diffuse at least part of the light emitted from a respective one of the plurality of LED light sources.

15. The vehicle light according to claim 1 , wherein each of the plurality of LED light sources has a reflector configured to reflect the light emitted from a respective one of the plurality of LED light sources in a uniform pattern.

16. The vehicle light according to claim 1 , wherein each of the LED light sources has a lens configured to diffuse at least part of the light emitted from a respective one of the plurality of LED light sources.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2009
From: MINODA, TAKAKO; KOJIMA, SHINICHI; OKADA, HIDETAKA
To: STANLEY ELECTRIC CO., LTD.
Reel/Frame 022651/0796 →
Priority Claims (1)
JP 2008-059665 · Mar 10, 2008 · national
Continuity (1)
Related Publication 20090225564A1 · Sep 10, 2009