PHOTOIRRADIATOR FOR PHOTOPOLYMERIZATION AND INSTRUMENT FOR MEASURING LIGHT QUANTITY OF IRRADITION

PURPOSE:To detect the deficiency of the light quantity of the light source of the photoirradiator for photopolymn. which cures a photopolymn. resin by the light projected from a light guide or to control the light quantity of the light source by building a sensor for detecting the light quantity of the light source into a hand piece. CONSTITUTION:This photoirradiator has the hand piece 20 which contains the light source and the light guide 24 which is freely attachably and detachably mounted in the hand piece 20, is introduced with the light from the light source 21 from one end and executes photopolymn. of the resin, etc., by radiating the introduced light from the other end. The hand piece 20 has the sensor 26 which detects the light quantity from the light source 21 and an alarm means 27 which emits an alarm when the light quantity falls down to a regulated quantity or below.