JP2009129897A - Led lamp for mercury lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel light source for outdoor illumination with a long life, brightness with less power consumption and capable of illuminating beautifully. <P>SOLUTION: Of an LED lamp for outdoor illumination, loss of entrance of light of a transparent acrylic solid-core corn lens is suppressed by mirroring a light guide part, a light exit surface is made to be a compound eye lens, and a high brightness white LED unit is fitted to the light introducing part with a corn part to have mirroring. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to mercury lamps and high-intensity lamps used for street lamps, tunnel lighting and lighting.

In general, an illumination light source used for street lamps and tunnel illumination is a mercury lamp, but the life of the light source is limited due to generated heat, vibration, etc., and maintenance for replacement is necessary. Since replacement of the mercury lamp is often at a high place or an inconvenient place, maintenance-free is required, and a low-maintenance illumination light source that does not deteriorate permanently is desired.

  In recent years, white LEDs have attracted attention as next-generation light sources. The power supply circuit is simple and has low power, and at the same time has a long life of 50,000 hours or more, and is effective for use in a light source that requires low maintenance.

  However, since LED light has strong directivity, it is suitable for illuminating a predetermined range and a short distance such as a flashlight or a bicycle light, but as a lamp light source that illuminates a wide range at a long distance. Was insufficient.

  In view of these points, it is an object of the present invention to provide a light source that is replaced with a novel outdoor illumination lamp that can be illuminated with a long life, low power consumption, and brightness.

In order to achieve the object of the present invention, in the first invention, the light introduction part is mirror-finished to suppress the light incident loss of the transparent acrylic solid conical lens, and the light introduction part has a high-intensity white LED unit. LED lamp characterized by providing.

According to a second aspect of the invention, there is provided an LED lamp characterized in that the light exit surface of the transparent acrylic solid conical lens described above is a compound eye lens.

According to a third aspect of the present invention, there is provided an LED lamp characterized in that the reflection efficiency is improved by mirror-finishing a conical portion of the transparent acrylic solid conical lens described above.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. [FIG. 11] shows a cross section of the LED lamp for mercury lamp according to the present invention. In the figure, A is a transparent acrylic solid conical lens, and 9 is a unit incorporating a high-intensity white LED unit. By making the light incident part and the conical part from 9 of A into a mirror surface, the light incident loss is increased and the irradiation amount is increased by improving the reflection efficiency.

[Fig. 7] shows the irradiation surface on the compound eye lens of a transparent acrylic solid conical lens.

The cross section of the acrylic solid conical lens in FIG. 11 and light scattering are schematically shown by arrows.

[FIG. 1] is an example in which a plurality of outdoor illumination LED lamps (4) are arranged to produce a high illumination light.

[FIG. 12] schematically shows a cross section of an apparatus in which a plurality of outdoor illumination LED lamps (4) are arranged and light scattering by arrows.

However, since the present invention is not limited to the above-described embodiments, various modifications can be made without departing from the gist of the claims.

The invention's effect

From the above, the present invention is superior in energy conversion efficiency, illuminance, pollution control, high flame color, uniform light distribution, power saving (less than 1/3) service life (5 times) compared to conventional outdoor lighting lamps. It is a product that can be reused by recycling even if it is outdoor lighting, has almost no heat generation, and is hard to break by adopting an acrylic cover.

Shows the front appearance of a luminaire using a plurality of LED lamps for outdoor illumination according to the present invention. Shows the backside appearance of a lighting fixture using a plurality of LED lamps for outdoor lighting. Shows a side appearance of a lighting fixture using a plurality of LED lamps for outdoor lighting. Shows the appearance of the left side of a lighting fixture using a plurality of LED lamps for outdoor lighting. Shows the right side appearance of a lighting fixture using a plurality of LED lamps for outdoor lighting. Shows a cross section of the lighting fixture using a plurality of LED lamps for outdoor lighting as seen from the direction of FIG. Shows the front appearance of the LED lamp lens for outdoor illumination. Shows the backside appearance of the LED lamp lens for outdoor illumination. Shows the side appearance of the LED lamp lens for outdoor illumination. Shows a cross section of an LED lamp lens for outdoor illumination. Shows a cross section of the LED lamp lens for outdoor illumination and light scattering by arrows. Shows, by arrows, a cross section and light scattering of a lighting fixture using a plurality of LED lamps for outdoor illumination as seen from the [FIG. 3] direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture body 2 Power supply box 3 Reflector plate 4 LED lamp for outdoor illumination 5 Mounting hardware 6 Transparent acrylic cover 7 AC / DC converter 8 LED mounting aluminum base 9 LED chip A LED lamp lens for outdoor illumination

Claims (3)

An LED lamp characterized in that a light-introducing portion of a transparent acrylic solid conical lens is suppressed by mirror-finishing the light-introducing portion, and a high-intensity white LED unit is provided in the light-introducing portion. An LED lamp, wherein the light exit surface of the transparent acrylic solid conical lens according to claim 1 is a compound eye lens. An LED lamp characterized by improving the reflection efficiency by mirror-finishing the conical portion of the transparent acrylic solid conical lens according to claim 1.

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