JP2010009854A - Led lamp and automobile lamp using led lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein, if an LED is used as a lamp for an automobile, since it does not have a thermal energy sufficient for generating heat of an outer lens, snow adhering to a lamp of the automobile, in particular, a fog lamp and a stop lamp of the automobile, does not melt and prevents visibility in a snowfall area. <P>SOLUTION: The LED lamp 1 has an outer lens 2 which is constructed of glass and resin formed by mixing a transparent material 20 that generates heat by absorbing optical energy, and an automobile lamp using the LED lamp 1 is also provided. The LED lamp 1 which uses an LED lamp having an infrared LED 61 with a wavelength 800 nm to 900 nm has a better exothermic efficiency. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an LED lamp that uses an LED (light emitting diode) as a light source and has an outer lens that generates heat by absorbing the light energy of the LED, and more particularly to an LED lamp used for a fog lamp and a stop lamp of an automobile. The “LED lamp” described in this specification means an illumination device that uses an LED as a light source.

  LEDs have better power usage efficiency than incandescent lamps that have been used as light sources, and have many merits such as resistance to impact and long life because they do not use filaments, and they can be used for various lamps in automobiles. Has also increased.

  As shown in FIG. 5, a conventional automobile lamp using an LED as a light source has a reflector 103, an inner lens 104, an LED base 105, and a control base in a hollow box-shaped body composed of an outer lens 101 and a housing 102. 106.

  However, as a general characteristic of an LED, in the case of the same illuminance, the amount of heat generated is small because it does not contain unnecessary infrared rays and the like, compared to an incandescent lamp using a conventional filament. For this reason, when LEDs are used as automobile lamps, there is not enough heat energy to heat the outer lens, so in winter, especially in snowy areas, snow attached to automobile lamps, especially automobile fog lamps and stop lamps, can not be seen without melting. There was a problem.

  In order to solve the above-mentioned problems, an LED lamp is proposed which has an outer lens made of glass and resin formed by mixing a transparent material that absorbs light energy and generates heat.

  The present invention also proposes an automotive lamp characterized by using an LED lamp having an outer lens made of glass and a resin formed by mixing a transparent material that absorbs light energy and generates heat.

  Furthermore, the LED lamp described in 0005 is proposed, in which the LED lamp has an infrared LED with a wavelength of 800 nm to 900 nm.

  Furthermore, the automobile lamp described in 0008 is proposed, in which the LED lamp is an LED lamp having an infrared LED with a wavelength of 800 nm to 900 nm.

  According to the present invention, the outer lens of the LED lamp is made of glass and resin formed by mixing a transparent material that generates heat by absorbing the light energy of the LED, so that the outer lens can generate heat conventionally. Therefore, when used as a ramp in a snowfall area, there is a snow melting effect.

  Further, in an automobile running in a snowfall area, it is possible to prevent snow from adhering due to heat generation of the outer lens by using it for a fog lamp or a stop lamp in addition to a headlamp. In particular, fog lamps and stop lamps need to be melted spontaneously because they are difficult to see from the driving driver. However, according to the present invention, the heat of the luminescent heat source can be absorbed and the snow melted spontaneously. As a result, it is possible to eliminate the problem that fog lights and stop lamps due to snow adherence disappear and the risk of traffic accidents increases.

  FIG. 1 is a longitudinal sectional view of an LED lamp according to a first embodiment of the present invention, specifically, an LED lamp used in an automobile, and a longitudinal section of an LED lamp used in an automobile according to a second embodiment of the present invention. 2 will be described based on FIG. 2 and FIG. 3 and FIG. 4 which are explanatory diagrams showing an example of the configuration distribution of the transparent material of the outer glass.

  As shown in FIG. 1, the LED lamp 1a used in the automobile according to the first embodiment of the present invention includes an outer lens 2, a housing 3, a reflector 4, an inner lens 5, an LED base 6a, and a control base 7. The outer lens 2 and the housing 3 form a hollow box-like body, and the reflector 4, the inner lens 5, the LED base 6a, and the control base 7 are provided in the hollow box-like body. The LED substrate 6a uses a general red LED 60 having a wavelength of 660 mm.

  The outer lens 2 is formed by mixing a transparent material that absorbs light energy from the LED substrate 6a and generates heat, for example, a near-infrared absorber and glass and resin that are materials of the outer lens 2 as an additive. The lens portion 20 mixed with the transparent material that absorbs light energy from the LED base 6a and generates heat may be mixed so as to spread over the entire surface of the outer lens 2 as shown in FIG. As shown, it may be configured by mixing only in a necessary portion of the outer lens 2 in consideration of design properties.

  Next, the LED lamp used for the motor vehicle which is 2nd Embodiment of this invention is demonstrated based on FIG.

  As shown in FIG. 1, an LED lamp 1b used in an automobile according to a second embodiment of the present invention includes an outer lens 2, a housing 3, a reflector 4, an inner lens 5, an LED base 6b, and a control base 7. The outer lens 2 and the housing 3 form a hollow box-like body, and the reflector 4, the inner lens 5, the LED base 6b, and the control base 7 are provided in the hollow box-like body.

  The LED substrate 6b includes an infrared LED 61 having a wavelength of 800 nm to 900 nm in addition to the red LED 60 having a wavelength of 660 mm.

  The outer lens 2 of the second embodiment is the same as the first embodiment, and the transparent material that generates heat by absorbing light energy from the LED base 6b is mixed with the material of the outer lens 2 using, for example, a near infrared absorber as an additive. Formed. Since the LED substrate 6b of the second embodiment uses the infrared LED 61 having a wavelength of 800 nm to 900 nm that is easily converted into a heat amount having a longer wavelength than that of the normal red LED 60 as a light source, the heat amount improvement rate is further improved.

  Also in the second embodiment, the lens portion 20 mixed with the transparent material that generates heat by absorbing light energy from the LED base 6b may be mixed so as to spread over the entire surface of the outer lens 2 as shown in FIG. Although it is good, as shown in FIG. 4, it is the same as that of 1st Embodiment that it may mix and comprise only in a required site | part considering the design property.

    The present invention is applied to a lamp using an LED as a light source, particularly an LED lamp used as a fog lamp, a stop lamp, or a head lamp of an automobile used in a snowfall area.

The longitudinal cross-sectional view of the LED lamp used for the motor vehicle which is 1st Embodiment of this invention The longitudinal cross-sectional view of the LED lamp used for the motor vehicle which is 2nd Embodiment of this invention Explanatory drawing which shows the example of composition distribution of the transparent material of the outer glass of the LED lamp of this invention Explanatory drawing which shows the example of composition distribution of the transparent material of the outer glass of the LED lamp of this invention Longitudinal sectional view of a conventional LED lamp for automobiles using LED as a light source

Explanation of symbols

1a LED lamp (first embodiment)
1b LED lamp (second embodiment)
2 Outer lens 20 Lens portion mixed with transparent material 3 Housing 4 Reflector 5 Inner lens 6a LED base (first embodiment)
6b LED base (second embodiment)
60 Red LED
61 Infrared LED
7 Control infrastructure

Claims (4)

  An LED lamp comprising an outer lens made of glass and resin formed by mixing a transparent material that generates heat by absorbing light energy.   An automobile lamp characterized by using an LED lamp having an outer lens made of glass and resin formed by mixing a transparent material that generates heat by absorbing light energy.   The LED lamp according to claim 1, wherein the LED lamp comprises an infrared LED having a wavelength of 800 nm to 900 nm.   The automobile lamp according to claim 2, wherein the LED lamp is an LED lamp having an infrared LED having a wavelength of 800 nm to 900 nm.

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