reference will now be made in detail to the present embodiments of the present invention , examples of which are illustrated in the accompanying drawings , wherein like reference numerals refer to the like elements throughout . the embodiments are described below in order to explain the present invention by referring to the figures . the terminology which is used in common will be used for the purpose of description and not of limitation . furthermore , terms and words used by the applicant may be used for special cases . in this case , the meaning of terms or words must be understood with due regard to the meaning expressed in the specification rather than taking into account only the basic meaning of the terms and words . hereinafter , the technical construction of the present invention will be described in detail with reference to preferred embodiments illustrated in the attached drawings . the present invention may , however , be embodied in different forms and should not be construed as limited to the embodiments set forth herein . the same reference numeral is used to refer to like elements throughout . as used herein , the terms “ about ”, “ substantially ”, etc . are intended to allow some leeway in mathematical exactness to account for tolerances that are acceptable in the trade and to prevent any unconscientious violator from unduly taking advantage of the disclosure in which exact or absolute numerical values are given so as to help understand the invention . fig5 is a perspective view showing a led oral illuminator in accordance with an embodiment of the present invention . fig6 is an exploded perspective view showing a frame and a bite block of a led oral illuminator in accordance with an embodiment of the present invention . fig7 is a perspective view showing installation of a led oral illuminator in accordance with an embodiment of the present invention . with reference to fig5 to 7 , an led oral illuminator using a bite block according to an embodiment of the present invention a frame 300 included outside a mouth 100 and a bite block 200 included in the mouth and bitten between upper and lower teeth in one side of the mouth . the frame 300 is bent to be u - shaped . one end of the frame 300 is inserted into the mouth of a patient , and the other end of the frame 300 is exposed to the outside of the mouth of the patient to naturally cover lip and cheek in one side of the patient . the edge lip of the patient is supported by the bent - up of the u - shaped frame 300 . thus , the mouth of the patient can be kept opening comfortable and safe . additionally , the frame 300 comprises an led light source 340 , a light source control switch 320 , a battery 330 , and an electrical charging terminal 310 . also , the frame 300 may further comprise a brightness controller ( not shown ) for adjusting brightness of an led light source 340 , which will be described later . the brightness controller adjusts brightness by controlling power supply provided to the led light source 340 . the led light source 340 is mounted on one end of the frame 300 to be inserted into the mouth of the patient . the led light source 340 includes a plurality of led lamps to illuminate a mouth cavity of the patient . the led light source 340 is turned on / off when it is housed in the bite block 200 that will be descried later . the led light source 340 is extended from one end of the frame 340 to be a bar - shaped light unit . accordingly , the led light source can effectively illuminate deep portions in the mouth of the patient such as throat , subglossal and so forth . comparing with an intraoral illumination device using a conventional bite block and surgical illumination device in a mouth , there is an advantage that lingual side of upper and lower teeth that is difficult to illuminate as well as upper and lower teeth in other side of a mouth facing a moral biting the bite block can be illuminated . in order to prevent bacteria infection which may be caused when treatment is performed , sterilize bacteria , or distinguish dental caries , the led light source 340 may comprise an uv led lamp for emitting ultraviolet rays . the led lamp and a plurality of lamps may be included simultaneously . in other words , the led lamps as well as certain lamps that are small and can illuminate a mouth cavity of human being are generally applicable as the led light source 340 . the light source control switch 320 is positioned at an external surface of the frame 300 to control turn on / off of the led light source 340 . in an embodiment of the present invention , the light source control switch 320 employing a touched - type for a patient to easily turn on / off is described . in general , however , a switch with various kinds of types such as button - type or contact - type can be adopted . the battery 330 is received in the other end of the frame 300 to be mounted . the battery 330 provides power supply to the led light source 340 , and more preferably , is chargeable . that is , the battery 330 is not located in a mouth of a patient but outside the mouth of the patient . since the size of the battery 330 is not relatively limited , the capacity of the battery 330 can be large . the battery 330 includes a cell , a protection circuit , and a current counter , which are not shown . the cell performs a function to charge and discharge stored power supply and provides charged power supply to the led light source 340 . the protection circuit prevents cell damage by over current and over voltage when the cell is charged with external power supply . the current counter counts the amount of current that inflows or outflows to the cell through a charging terminal 310 that will be described later and then , transfers enumerated value to a control unit ( not shown ). the control unit transmits a signal by the enumerated value to a displaying unit ( not shown ) such as charging lamps or lcd to display charging or discharging state of the battery 330 . the charging terminal 310 is a terminal for charging the battery 330 with external power supply and includes a socket electrically connected to external power supply . the charging terminal 310 can charge the battery 330 even when the battery 330 provides power supply to the led light source 340 . therefore , when the battery 330 is discharged in performing dental treatment , it can be charged without extracting it to the outside of a mouth of a patient . the bite block 200 is removal coupled to the frame 300 and can be coupled to one end of the frame 300 . the bite block 200 is bitten between upper and lower teeth in the mouth of the patient and supports the mouth opened . the bite block 200 includes a block body 210 , a light source insert hole 211 , a bite groove 214 , and a bite projection 215 . the bite block 200 may be separated from the frame 300 , so that it is disposable and replaceable . when the bite block 200 is reused , it can be sterilized in high temperature to be kept clean . in order for the bite block 200 to be swapped and used depending on a mouth state or mouth size of patients , the bite block 200 may be a set of bite block including a plurality of blocks that have different size . the block body 210 is bitten between the upper and lower teeth in the mouth of the patient to open the mouth and included in a body of the bite block 200 . the block body 210 is made of resin material that is harmless to human . harmless materials like latex , rubber , silicone and so forth may be coated on an external surface of the block body . the led light source 340 houses the block body 210 to illuminate light into the mouth of the patient . the block body 210 may comprise a transparent block body allowing light emitted from the led light source to be transmitted into the mouth of the patient . accordingly , a blind spot being a region of a mouth of a patient not illuminated by led light source 340 is removed , and at the same time the formation of shadow is not created while illuminating the mouth cavity . resultantly , a doctor can practice a mouth cavity of a patient in detail . the light source insert hole 211 is formed at one side of the block body 200 and inserted into the led light source 340 . the light source insert hole 211 is formed in order for light of the led light source inserted into the bite block 200 to illuminate a center of a mouth cavity of the patient . the bite groove 214 is included on upper and lower portions of the block body 210 . the bite groove 214 has u - shaped cross - section to be bitten between the upper and lower teeth of the patient . the bite block 200 is not separated from teeth of the patients without additional efforts , thereby effectively fixing the bite block 200 . the bite projection 215 is formed in a bottom of the bite groove 214 and prevents the bite block 200 from slipping relative to the upper or lower teeth of the patient . the usage of the led oral illuminator using the bite block is briefly described below according to an embodiment of the present invention . in advance , the battery 330 is charged . in case that a sign that the battery 330 is charged completely is displayed in the display unit , the frame 300 and the bite block 200 are coupled to open the upper and lower teeth of the patient and up and down . next , the light source control switch is manipulated to turn on the led light source being illuminant . power supply is provided from the battery 330 to each of the led light source 340 . each of the led light source 340 is turned on to illuminate the mouth cavity of the patient . a doctor practices a lesion in a mouth of a patient . then , when the doctor performed treatment completely , he / she separates the bite block 200 and the frame 300 from teeth of the patients . he / she separates the bite block 200 from the frame 300 and washes the bite block in high temperature . after that , the bite block 200 is exposed at steam with high temperature for a predetermined time and sterilized so as to keep the bite block 200 sanitarily . the bite block 200 is attachable to the frame 300 . the battery 330 or the led light source 340 do not formed in the bite block 200 . the battery 330 and the led light source 340 are included in the frame 300 . from these structures , the damage and life shortage of the battery 330 and the led light source 340 due to washing or sterilizing can be prevented . the led oral illuminator according to an embodiment of the present invention illuminates a mouth cavity of a patient using an led light source located in a bite block . the led intraoral device according to the present invention can illuminate mouth cavity , in particularly , lingual sides of upper and lower teeth , the other ends of the upper and lower teeth facing moral biting the bite block , throat , subglossal and so forth as a whole to be used widely in dental treatment field . although a few embodiments of the present invention have been shown and described , it would be appreciated by those skilled in the art that changes may be made in this embodiment without departing from the principles and spirit of the invention , the scope of which is defined in the claims and their equivalents .
disclosed herein are intraoral illumination devices . more specifically , the led intraoral illumination device in accordance with the present invention has an improved battery for providing power supply and structure of a bit block for opening a mouth using the bit block .