| 1. | A light dispersion transmission medium lightemitting helmet having a lightemitting unit added in a helmet for use in <BR> a cycle, a moto cycle, an inline skate, etc. , the light dispersion transmission medium lightemitting helmet comprising: an elongate groove for receiving a light dispersion transmission medium formed in at least one place on the outer surface of the helmet; a thermoplastic light dispersion transmission medium which is accommodated and combined in the elongate groove and on the end of which a light source is integrally combined; and a control printed circuit board which is separately connected with the light source via an electric wire and is powered on or off by a switch, and which is installed in a control hole formed in the helmet. |
| 2. | The lightemitting helmet according to claim 1, wherein the surface of the light dispersion transmission medium is of various light dispersion patterns and is curved diametrically. |
| 3. | The lightemitting helmet according to claim 1, wherein a light source reception groove is formed on the bottom surface of the end of the light dispersion transmission medium, in which the light source is integrally combined in the light source reception groove. |
Background Art In general, as shown in FIG. 1 and FIG. 2, a light-emitting helmet includes reception portions 10 which are formed at intervals on the surface of the helmet 1 and having guide grooves 11 on both sides thereof, a light-emitting members 30 which are installed in the reception portions 10, and connected with a light dispersion transmission medium 40 for light emission, respectively, and display members 20 which are detachably combined onto the guide grooves 11 in the reception portions 10 in which the light-emitting members 30 are installed, and on the
surfaces of which a light-emitting display 21 is respectively formed. The conventional light-emitting helmet is achieved by combining transparent and non-transparent plates to implement various types of light-emitting patterns. However, since the conventional light-emitting helmet has been developed to display only the light-emitting patterns, other persons cannot recognize the light displayed on the conventional light-emitting helmet at a remote place. Thus, an accident cannot be easily prevented in the case of the conventional light-emitting helmet.
Disclosure of the Invention To solve the above problems, it is an object of the present invention to provide a light dispersion transmission medium light-emitting helmet which disperses light so that other persons nearby can recognize the light with at least one light source to thereby prevent an accident, in which a light-emitting function is provided in a light dispersion transmission medium helmet and then at least one light source such as a light emitting diode (LED) is combined with a lengthy light dispersion transmission medium whose cross-section is curved like a lens so that light can be amplified and transmitted.
It is another object of the present invention to provide a light dispersion transmission medium light-emitting helmet in which an elongate groove is formed in a helmet to receive a
thermoplastic light dispersion transmission medium, and at least one light source such as a light emitting diode (LED) is accommodated in the end of the light dispersion transmission medium, so that light emitted from the light source can be transferred and transmitted uniformly via the whole surface of the light dispersion transmission medium, to thereby provide an effect of using the single light source like a plurality of light sources.
To accomplish the above object of the present invention, according to the present invention, there is provided a light dispersion transmission medium light-emitting helmet having a light-emitting unit added in a helmet for use in a cycle, a moto cycle, an inline skate, etc. , the light dispersion transmission medium light-emitting helmet comprising: an elongate groove for receiving a light dispersion transmission medium formed in at least one place on the outer surface of the helmet; a semi-transmissive light dispersion transmission medium which is accommodated and combined in the elongate groove and on the end of which a light source is integrally combined; and a control printed circuit board which is separately connected with the light source via an electric wire and is powered on or off by a switch, and which is installed in a control hole formed in the helmet.
Preferably, the surface of the light dispersion transmission medium is curved diametrically.
Preferably, a light source reception groove is formed on the bottom surface of the end of the light dispersion transmission medium, in which the light source is integrally combined in the light source reception groove.
Preferably, the light source is formed of LEDs which can be selectively and simultaneously turned on in various colors.
Brief Description of the Drawings The above and other objects and advantages of the present invention will become more apparent by describing the preferred embodiment thereof in detail with reference to the accompanying drawings in which: FIG. 1 is a perspective view showing an example of a conventional helmet; FIG. 2 is a partly exploded side view showing a helmet according to the present invention; FIG. 3 is a circuitry diagram of an electrical system for a light-emitting helmet according to the present invention; and FIG. 4 is a perspective view separately showing essential parts of the light-emitting helmet.
Best Mode for Carrying out the Invention Hereinbelow, a light dispersion transmission medium light-emitting helmet according to the present invention will be
described with reference to the accompanying drawings.
In FIG. 2, essential parts of a light dispersion transmission medium light-emitting helmet according to the present invention are shown partly explosively. An elongate groove 30 for receiving a light dispersion transmission medium 40 and whose surface is curved as depicted as a reference numeral 42 is formed in at least one place on the outer surface of a helmet 1. A light source reception groove 43 for receiving a light source 41 is formed on the bottom surface of the end of the light dispersion transmission medium 40. Light emitting diodes (LEDs) are used as an example of the light source 41.
A control hole 31 is formed in another place on the helmet 1, in which it is preferable that the control hole 31 is formed in the rear surface of the helmet 1 on which an external mechanical shock is less applied than the front surface thereof, but is not limited thereto.
A printed circuit board (PCB) 50 is accommodated in the control hole 31. Since the PCB may be accommodated in the control hole by means of various fixing units such as compression fitting or screw connection, the detailed description thereof will be omitted.
A switch 51 and a battery 52 are electrically connected with the PCB 50. An electric wire 54 electrically connects the light source 41 and the switch 51.
FIG. 3 is a circuitry diagram of an electrical system for a light-emitting helmet according to the present invention, and FIG. 4 is a perspective view separately showing essential parts of the light-emitting helmet.
A pulse circuit 53 and the switch 51 are installed in the PCB 50 which receives power from the battery 52. The output from the pulse circuit 53 is applied to the light source 41 via the electric wire 54. The light emitted from the light source 41 is uniformly applied to the end of the light dispersion transmission medium 40. LEDs are used as the light source 41, in which the LEDs of various colors can be selectively used. Here, as shown in FIG.
4, in the case of the light dispersion transmission medium 40, the light source 41 is connected with the PCB 50 via the electric wire 54. The electric wire 54 can be incorporated in the helmet 1 or installed between the inner surface and the outer surface of the helmet 1.
The light source 41 is combined into the light source reception groove 43 shown in FIG. 2 in various coupling methods such as a compression fitting method or bonding method. It is preferable that the light dispersion transmission medium 40 is made of a flexible thermoplastic polymer and rubber synthetic material so that the cross-section of the light dispersion transmission medium 40 is formed of a curved surface 42 which performs a lens function. The surface of the light dispersion
transmission medium 40 is uniformly formed in lengthy direction, and the cross-section thereof is curved, to thereby maintain a uniform luminous intensity. In this manner, the light dispersion transmission medium 40 is formed of a uniform surface in lengthy direction or along the shape of the light dispersion transmission medium 40, to thereby uniformly amplify and emit the light.
As shown in FIGs. 2 through 4, the light dispersion transmission medium 40 including at least one LED is combined by a fitting method into the elongate grooves 30. However, the former can be bonded on the latter. Also, at least one LED is used. LEDs of various colors can be used.
As shown in FIG. 2, the PCB 50 is mounted into the control hole 31 which is separately formed on the surface of the helmet 1, which is electrically powered on and off via the electric wire 54 which is separately incorporated with the helmet 1. Here, the light source 41 such as LEDs is combined into the light source reception groove 43 and connected therebetween via the electric wire 54. The switch 51 may be a t-act switch or may be designed into a separate helmet string to operate switching. When the switch 51 is turned on, the pulse circuit 53 of FIG. 53 is activated and operated, to thereby apply a pulse or another type of output to the light source 41. Here, the pulse circuit 53 can output a constant output pattern or an intermittent output. Accordingly, the light source 41 emits light. Since the light has a linear
characteristic, it is applied to the thermoplastic light dispersion transmission medium 40. here, since the cross-section of the light dispersion transmission medium 40 is curved while having a lens function, the light is uniformly radially emitted and also extended in lengthy direction or along the shape of the light dispersion transmission medium 40. As a result, the light repeatedly reciprocates between both ends of the light dispersion transmission medium 40 and is amplified, to thereby maintain and emit bright light having a high luminous intensity and provide an effect of having other persons recognize the light at a remote place. That is, the present invention uses an amplification and oscillation effect of light. Thus, although at least one light source 41 such as a LED is used in the present invention, a bright luminous intensity is obtained as if a number of light sources were used. The light source in the present invention is combined with the thermoplastic light dispersion transmission medium so as to be adapted well to the shape of the thermoplastic light dispersion transmission medium 40, so that the light is uniformly illuminated on the surface of the thermoplastic light dispersion transmission medium.
As described above, the present invention has been described with respect to the embodiments of using a single thermoplastic light dispersion transmission medium. However, as shown in FIG.
3, a light dispersion transmission medium 40 including a light
source 41 can be installed in each elongate groove 30. In this case, each light source 41 is implemented using a different color LED, to thereby display a different color in various forms.
Industrial Applicability As described above, the light dispersion transmission medium light-emitting helmet according to the present invention uses a single light source and transfers light to a wide area of a thermoplastic light dispersion transmission medium, economically. Also, since the surface of the light dispersion transmission medium is curved to play a role of a lens in the present invention, a uniform luminous intensity of light is amplified and emitted through the lens function. Accordingly, the present invention provides people with a luminous intensity of light so as to have people recognize the light at a remote place, to thereby contribute to prevention of a safety accident. In addition, since the light dispersion transmission medium is separated from the PCB, the light-emitting helmet can endure with a mechanical shock resistance in view of the helmet attributes.
Further, the present invention allows a variety of design changes, which provide users with conveniences such as a switch implemented externally from the helmet.
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