Illumination – Light fiber – rod – or pipe – Illuminating or display apparatus
Reexamination Certificate
1999-10-06
2001-05-22
Cariaso, Alan (Department: 2875)
Illumination
Light fiber, rod, or pipe
Illuminating or display apparatus
C362S554000, C362S581000
Reexamination Certificate
active
06234657
ABSTRACT:
BACKGROUND OF THE PRESENT INVENTION
1. Field of Invention
The present invention relates to a light source structure for optical fiber decoration, wherein the light from multiple light emitting diodes with different colors is conducted by the optical fibers to a display member to create versatile pictures with flickering effect in a bright point pattern
2. Description of Related Arts
FIG. 1
shows a conventional colorful light source for optical fiber decoration, in which inner ends of multiple optical fibers
62
are disposed on a decoration board
6
, while the other ends thereof are binded by a binding frame
621
. A rotary disc
63
is deposed beside the binding frame
621
and equipped with multiple transmitting plates
631
with different colors. When the rotary disc
63
is rotated, the light passes through different transmitting plates
631
to create different colors of light. The light is conducted by the optical fibers
62
to form versatile change of pictures on the decoration board
61
. Several shortcomings exist in such arrangement as follows:
1. The light source ends of the optical fibers cannot be arranged or divided.
2. A volume of the conventional light source is relatively large and the necessary heat-radiating space is also larger so that it is not applicable to a smaller decoration.
3. The consumption of energy is great and problems of over-heating and improper layout of circuit may take place.
FIG. 2
shows another colorful light source for optical fiber decoration, including a decoration board
71
with bright points of picture
711
, optical fibers
72
and binding frame
721
. The light source
74
is disposed in a rotary ring
73
formed with peripheral transmitting plates
731
with different colors. The rotary ring
73
is driven by a driving means
75
to shift the different transmitting plates
731
so as to create different colors of light. The light is conducted by the optical fibers
72
to the decoration board
71
to form a picture of bright points
711
. Such arrangement still has the following shortcomings:
1. The occupied room is even larger than the aforesaid device.
2. The problems of great consumption of energy and high temperature and unstable circuit still exist.
3. The cost is even higher.
SUMMARY OF THE PRESENT INVENTION
It is a primary object of the present invention to provide a light source structure for optical fiber decoration, in which light emitting diodes are employed as light source to stably emit light. In addition, the diodes can have multiple colors for selection. The light from the diodes is conducted by the optical fibers to the display member to form distributed bright points on the decoration.
It is a further object of the present invention to provide the above light source structure in which multiple sets of light emitting diodes with identical color or different colors are controlled by electronic circuit to sequentially flicker and change the colors. Also, by means of control of integrated circuit, the flickering and change of colors can cooperate with a melody.
It is still a further object of the present invention to provide the above light source structure in which the strength of the light emitting diodes with different colors is changed or mixed by other device such as a beam splitter so as to create infinite change of colors.
It is another object of the present invention to provide the above light source structure in which each light emitting diode light source of particular color is integrally connected to a bundle of optical fibers by means of a light collection sleeve for directing and transmitting all the light energy onto the root ends of the optical fibers without light leaking out.
It is another object of the present invention to provide the above light source structure in which the light emitting diodes of different colors is protected from affecting with each other so that the pure color can be directed to the desired optical fibers.
The advantages of the present invention are as follows:
1. The cost is greatly reduced.
2. The light emitting diodes are powered on by much lower voltage and current than the conventional bulb so that the problem of high temperature and radiation is eliminated and the entire circuit can work in a more stable state. Therefore, the safety is ensured and the application range is wider.
3. The low voltage and current of the light emitting diodes lead to low consumption of energy so that the light source is applicable in a device with small volume, such as a Christmas card.
4. Without the problem of high temperature, the optical fibers are free from thermal deformation.
The present invention can be best understood through the following description and accompanying drawings, wherein
REFERENCES:
patent: 4097917 (1978-06-01), McCaslin
patent: 4830899 (1989-05-01), Nakahashi et al.
patent: 5231689 (1993-07-01), Reidinger
patent: 5347437 (1994-09-01), Cocca et al.
patent: 5477424 (1995-12-01), Mocha
patent: 5585782 (1996-12-01), Yosko
Cariaso Alan
Chan Raymond Y.
David and Raymond Patent Group
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