US2017276462A1PendingUtilityA1

Dartboard having light source and dartboard controlling device

Assignee: HONG INT CORPPriority: Nov 21, 2014Filed: Nov 23, 2015Published: Sep 28, 2017
Est. expiryNov 21, 2034(~8.3 yrs left)· nominal 20-yr term from priority
Inventors:Sang Uk Hong
F41J 3/02F41J 3/008A63B 65/02F41J 3/0066
43
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Claims

Abstract

Disclosed are a dart board equipped with a light source, and a device for controlling the dart board. The dart board equipped with the light source includes: a circular base plate; a plurality of ring-shaped parts which is provided with a predetermined height on an upper surface of the base plate, and is formed with a predetermined radius at a center of the base plate; a plurality of extended parts which are connected from an inner side of an outermost ring-shaped part among the ring-shaped parts to the center of the base plate in a radius direction of the base plate; a plurality of divided parts which are surrounded so as to be closed by the ring-shaped parts and the extended parts; a light guide unit of which one surface is in contact with an external side of the outermost ring-shaped part facing the inner side of the outermost ring-shaped part; and a light source unit which is in contact with the other surface of the light guide unit.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A dart board, comprising:
 a circular base plate;   a plurality of ring-shaped parts which is provided with a predetermined height on an upper surface of the base plate, and is formed with a predetermined radius at a center of the base plate;   a plurality of extended parts which is connected from an inner side of an outermost ring-shaped part among the ring-shaped parts to the center of the base plate in a radius direction of the base plate;   a plurality of divided parts which are surrounded so as to be closed by the ring-shaped parts and the extended parts;   a light guide unit of which one surface is in contact with an external side of the outermost ring-shaped part facing the inner side of the outermost ring-shaped part; and   a light source unit which is in contact with the other surface of the light guide unit.   
     
     
         2 . The dart board of  claim 1 , wherein the extended part includes a first extended surface and a second extended surface, and
 the extended part is formed of a light transmissive material so as to enable a beam to pass through between a predetermined width from the first extended surface to the second extended surface.   
     
     
         3 . The dart board of  claim 2 , wherein the light transmissive material includes at least one of alumina ceramics, yttrium aluminum garnet (YAG), perovskite, and spinel. 
     
     
         4 . The dart board of  claim 1 , wherein the light guide unit includes:
 a first lens unit in which a first incident surface formed in a radiation direction of a center beam has a convex shape toward the light source unit so that the center beam radiated from the light source unit is incident;   a second lens unit which has a second incident surface, into which peripheral beams radiated from the light source unit are incident, and a reflective surface totally reflecting incident light refracted from the second incident surface; and   an emitting surface which emits the beams from the first incident surface of the first lens unit and the reflective surface of the second lens unit,   the second incident surface is inclined from a direction vertical to the first incident surface to a direction away toward the light source unit, and   the reflective surface is curved so as to be gradually widened from the second incident surface to the emitting surface in order to reflect incident light which is radiated from the light source unit and is refracted through the second incident surface and is incident.   
     
     
         5 . The dart board of  claim 4 , wherein the reflective surface satisfies a total reflection condition. 
     
     
         6 . The dart board of  claim 1 , wherein the ring-shaped part and the extended part are formed with the same height from the base plate. 
     
     
         7 . The dart board of  claim 1 , wherein when a corresponding event is generated, the light source unit emits light with a predetermined color corresponding to the corresponding event. 
     
     
         8 . The dart board of  claim 1 , further comprising:
 a cover part which is in contact with the extended part and the ring-shaped part and closes the divided part,   wherein the cover part makes a beam passing through the extended part stand out boldly.   
     
     
         9 . A device for controlling a light source unit, the device comprising:
 a recognizing unit which recognizes a corresponding event;   a search unit which searches for a light source profile corresponding to the corresponding event; and   a control unit which controls a light source unit of a dart board based on the light source profile,   wherein the dart board includes:   a circular base plate;   a plurality of ring-shaped parts, which are provided with a predetermined height on an upper surface of the base plate, and is formed with a predetermined radius at a center of the base plate;   a plurality of extended parts, which are connected from an inner side of an outermost ring-shaped part among the ring-shaped parts to the center of the base plate in a radius direction of the base plate;   a plurality of divided parts which are surrounded so as to be closed by the ring-shaped parts and the extended parts;   a light guide unit of which one surface is in contact with an external side of the outermost ring-shaped part facing the inner side of the outermost ring-shaped part; and   a light source unit which is in contact with the other surface of the light guide unit.

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