1. Technical Field
The disclosure relates to an illumination system, and particularly to a vehicle lamp system with an enhanced light utilizing efficiency.
2. Description of Related Art
A conventional vehicle lamp apparatus used in a vehicle provides illumination by a halogen bulb cooperating with a parabolic reflecting mirror. However, the vehicle lamp apparatus using the halogen bulb as the light source has many shortcomings, such as poor light distributions, low light utilizing efficiency, etc.
What is needed, therefore, is a vehicle lamp system which can overcome the shortcoming as described above.
Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Referring to
The laser source 10 includes a plurality of laser diodes 12. The laser diodes 12 are electrically connected to a storage battery in a vehicle to obtain electrical power from the storage battery. In this embodiment, the laser diodes 12 irradiate blue light when work.
The reflecting mirrors 20 face a light emitting direction of the laser source 10. Light generated from the laser source 10 is reflected to the light converting element 30 by the reflecting mirrors 20. The number of the reflecting mirrors 20 is equal to the number of the laser diodes 12. Each of the reflecting mirrors 20 is corresponding to one of the laser diodes 12. Each of the reflecting mirrors 20 is a flat plate, and has a planar reflecting face 21. Each laser diode 12 irradiates light on the reflecting face 21 of a corresponding one of the reflecting mirrors 20. The reflecting faces 21 of the reflecting mirrors 20 reflect the light to the light converting element 30.
Referring to
The light reflected to the light converting element 30 firstly enters into the base 32 of the light converting element 30, and then is reflected to the reflecting plate 40 by the reflecting layer 34 of the light converting element 30. During the light transmitting in the base 32, the light is diffused by the diffusing grains 38, thereby forming a surface light source with the light evenly distributed in a large illumination area. The phosphor powders 36 change color of the light transmitted from the reflecting mirrors 20. In this embodiment, the phosphor powders 36 convert the light transmitted from the reflecting mirrors 20 into white light.
The reflecting plate 40 reflects the light transmitted from the light converting element 30 out of the vehicle. The reflecting plate 40 is arc-shaped and has a concave reflecting face 41. The reflecting face 41 faces a light emitting direction of the light converting element 30.
According to the disclosure, the vehicle lamp system 100 uses the laser diodes 12 as the light source. The light emitted from the laser diodes 12 is transmitted to the reflecting mirrors 20, the light converting element 30 and the reflecting plate 40 in sequence, thereby converting the point type light sources formed by the laser diodes 12 into the surface type light source with the light evenly distributed and a large illumination area. Thus, the light utilizing efficiency of the light generated from the laser diodes 12 is greatly enhanced.
Referring to
It is believed that the disclosure and its advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the disclosure.
Number | Date | Country | Kind |
---|---|---|---|
102114100 | Apr 2013 | TW | national |