Illumination – Light fiber – rod – or pipe – With mounting or holding means
Utility Patent
1999-05-19
2001-01-02
Tso, Laura K. (Department: 2875)
Illumination
Light fiber, rod, or pipe
With mounting or holding means
C384S136000
Utility Patent
active
06168304
ABSTRACT:
The present utility relates to an apparatus with variable illumination, in particular, relates to a lamp box having a color variable light source.
There exist a various kinds of lamp boxes for advertisement illumination. Most of the lamp boxes for advertisement illumination are provided with high voltage power sources for supplying high voltage to illuminants. For example, neon lamp is such a regular kind of advertisement lamp. A light tube of a neon lamp is used as a luminous light source. When high voltage power sources applied, neon lamps bring a lot of beauty to our life. For a part of pattern or a given pattern, light color from a neon lamp is unchangeable. Different colors from the neon lamp, as people see, are generated by different patterns. In view of the performance of the neon lamp and the configuration of the required power source, it is apparent that the neon used for advertisement must be constructed very complexly so that it can emit color variable light. As the number of variable colors increases, the configuration becomes more complex. Accordingly, Chinese Patent No. ZL97241773.7 discloses a lamp box with a color variable light source. Its light source utilizes a metal halide lamp together with a filter, optical fibers, etc., so that the light source lamp box can change its color more easily and have a simpler construction. However, such a lamp box still has the following drawback. In this configuration, optic fibers are connected with the body of the lamp box through a fiber optic plug. The fiber optic plug comprises a blocking slot. At the leading end of the blocking slot is provided a waist-shaped step with both of its top and bottom surfaces being flat. Correspondingly, a waist-shaped hole is provided on a body wall of the light source lamp box for the fiber optic plug to be inserted therein. After inserting into the waist-shaped hole, the fiber optic plug is rotated 90 degree in a clockwise or counterclockwise direction so that the body wall of the light source box is blocked into the above blocking slot and the fiber optic plug is connected with the body of the light source lamp box. Such a structure often makes the fiber optic plug depart from the body of the light source lamp box due to the rotation of optical fibers so that the light from the light source can not be directed onto the light receiving area at the end face of the optical fibers.
Therefore, the purpose of the present utility is to overcome the above-mentioned drawback in the light source lamp box, and to provide a color variable light source lamp box which connects a fiber optic plug with the body of the lamp box reliably.
To achieve the above purpose, the present utility utilizes a technical scheme in which a lamp box with a color variable light source comprises a metal halide lamp, a bowl-like reflector, a power source, a filter and a drive motor in its body. The metal halide lamp is positioned in the bowl-like reflector. The power source is connected with the metal halide lamp. The body of the lamp box is connected with optical fibers through a fiber optic plug. The filter is located between the metal halide lamp and the fiber optic plug. The drive motor drives the filter to rotate. Furthermore, the fiber optic plug comprises a fiber optic internal sleeve, a fiber optic position sleeve, a position pole, a holder and a rear base seal sleeve. Both of the foreparts of the fiber optic internal sleeve and the fiber optic position sleeve are in a straight tube shape. The fiber optic internal sleeve is settled inside the fiber optic position sleeve, and a position groove is provided at the outer edge of the fiber optic position sleeve which is located in the holder and extends from the holder. The holder has a position hole at a radial place corresponding to the position groove of the fiber optic position sleeve. The holder fastens the fiber optic position sleeve by using the position pole and a spring. The rear base seal sleeve is pivotally connected with the fiber optic position sleeve. The hole of the fiber optic jack on the body wall of the lamp box is round.
Because the fiber optic plug of the present utility comprises a fiber optic internal sleeve, a fiber optic position sleeve, a position pole, a holder and a rear base seal sleeve; the holder, the fiber optic position sleeve and the fiber optic internal sleeve are fastened by the position pole; and the fiber optic jack on the body wall of the lamp box has a round hole corresponding to the fiber optic position sleeve of the fiber optic plug, it is impossible for the fiber optic plug to depart from the body of the light source lamp box even if the fiber optic position sleeve and the optical fibers in the fiber optic internal sleeve rotate.
REFERENCES:
patent: 3958114 (1976-05-01), Codrino
patent: 5147128 (1992-09-01), Windross
patent: 5528714 (1996-06-01), Kingstowne et al.
patent: 5793920 (1998-08-01), Wilkins et al.
patent: 5803575 (1998-09-01), Ansems et al.
Optic-Tech International
Rothwell Figg Ernst & Manbeck
Tso Laura K.
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