Patent Application
20090310366
1. Field of the Invention
The present invention relates to a light emitting diode lens structure and an illumination apparatus incorporating with the light emitting diode lens structure, and more particularly to a light emitting diode lens structure and an illumination apparatus incorporating with the light emitting diode lens for anti-glare to reduce eyestrain
2. Description of the Prior Art
There are many illumination apparatus in the market, such as fluorescent lamps, street lamps, desk lamps, and art lamps.
A conventional illumination apparatus uses a tungsten light bulb as the light source. Thanks to the science and technology to change with each passing day, a light emitting diode (LED) is applied to be a light source recently. Traffic signs, advertisement billboards, and vehicular lamps also use a light emitting diode as a light source. To use the LED as a light source is gradually popular because it saves power and provides more brightness.
A conventional LED illumination apparatus comprises a lampshade. The lampshade is provides with one or a plurality of light emitting diodes as a light source. The light emitting diode is coupled with a lens. By the transmission of the lens, the light from the light emitting diode radiates even and to a larger area in case the surface of the lens is ground glass. A conventional lens is designed to stress on transmission function, which is easy to cause glare and eyestrain.
Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to the development of an LED lens structure and an illumination apparatus incorporating with the LED lens structure for anti-glare to reduce eyestrain.
It is one object of the present invention to provide a light emitting diode lens structure comprising a lens having an upper section and a lower section. The lower section is provided with a light emitting diode accommodation part. The upper section is coated with a specular reflection layer to form a reflecting surface facing the light emitting diode accommodation part.
By the design of the reflecting surface and the reflecting surface facing the light emitting diode accommodation part, the light is reflected to provide an anti-glare lighting to reduce eyestrain.
It is another object of the present invention to provide an illumination apparatus incorporating with the LED lens structure includes a lampshade, a locking module, an electrode module, and a light emitting diode. The lampshade has a reflecting light surface and an aperture. The locking module is coupled on the lampshade and has a through hole corresponding to the aperture. The electrode module is coupled on the locking module and corresponds to the through hole.
The light emitting diode is assembled to the light emitting diode accommodation part of the lens, the lower section of the lens is inserted through the aperture and engages with the through hole, and the light emitting diode is electrically connected to the electrode module.
By the design of the reflecting surface and the reflecting surface facing the light emitting diode accommodation part, the light is reflected and radiated through the reflecting light surface of the lampshade to provide an anti-glare lighting to reduce eyestrain.
The lower section of the lens is formed with outer threads, the locking module is formed with inner threads, and the lower section of the lens is inserted through the aperture with the outer threads engaging with the inner threads.
As shown in
In this embodiment, the upper section 11 of the lens 1 is formed with a concave part 110. The specular reflection layer 111 is coated on the concave part 110 to form the reflecting surface 112. In this embodiment, the concave part 110 has a taper cross-section, and the specular reflection layer 111 is an aluminum specular reflection layer. The specular reflection layer 111 may be other metallic coating layer with a reflecting light purpose to reflect light such as silver or oxide. The coating way is not limited, for example electroplating or sputtering.
In this embodiment, the upper section 11 of the lens 1 has a rectangular cross-section. The lower section 12 is formed with outer threads 122. The LED accommodation part 121 of the lower section 12 has a recess 123. The recess 123 has a rectangular cross-section.
In this embodiment, the lens 1 is in a circular shape. The shape of the lens 1 is not limited, which may be a rectangle or polygon.
The lampshade 21 has a reflecting light surface 211 and an aperture 212. The reflecting light surface 211 faces and surrounds the aperture 212. The locking module 22 is mounted on the lampshade 21. The locking module 22 has a through hole 221 corresponding in position to the aperture 212. The radiating heat module 25 is mounted on the locking module 22 and is contact with the electrode module 23.
The light emitting diode 24 is assembled to the light emitting diode accommodation part 121 of the lens 1, the lower section 12 of the lens 1 is inserted through the aperture 212 and engages with the through hole 221, and the light emitting diode 24 is electrically connected to the electrode module 23.
In this embodiment, the LED 24 is attached to the LED accommodation part 121 of the lens 1, which may be done by other equivalent ways. For instance, the LED 24 is tightly embedded in the LED accommodation part 121.
In this embodiment, the lower section 12 has the outer threads 122, and the through hole 221 of the locking module 22 is formed with inner thread 222. The lower section 12 is inserted through the aperture 212 with the outer threads 122 engaging with the inner threads 222. The LED 24 is assembled to the LED accommodation part 121 of the lens 1. The lens 1 with the LED 24 is manually screwed to the through hole 221.
By the design of the reflecting surface 112 of the lens 1 and the reflecting surface 112 facing the LED accommodation part 121, the light from the LED 24 is refracted and radiated outward through the reflecting light surface 211 of the lampshade 21 to provide an anti-glare lighting to reduce eyestrain.
As shown in
By the design of the outer threads 122 engaging with the inner threads 222, the LED 24 is able to be replaced when it is damaged, which is convenient to maintenance. The lampshade 21 may be provided with a plurality of lenses 1 with a plurality of light emitting diodes 24. When one of the light emitting diodes 24 is damaged, it is able to replace the LED 24 manually.
A conventional LED structure is to fix the foot of the LED direct, which is unable to make a replacement. Contrary, it is quick to replace the LED 24 with the outer threads 122 engaging with the inner threads 222 without concerning the electrode. When the lens 1 is connected with the LED 24, the LED 24 is electrically connected to the electrode 23 direct. This design is very convenient to assemble and disassemble the present invention.
According to the above-described embodiments, the shapes of the upper section, the reflecting surface, and the recess are not limited. Various shapes have the same effect as the first preferred embodiment.
Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.
