The main function of the light curing lamp is to polymerize the light-curing composite resin material to achieve the repair of the anterior teeth defect and the need for beauty and esthetics. According to the thickness of the solidified material during work, the curing time is reasonably selected. When the trigger switch is pressed, the electronic switch circuit works, and a control signal is output to trigger the conduction of the thyristor electronic device, so that the voltage of 12V is added to the halogen bulb, so that The light is bright, and the effective light of a specific wavelength is passed through the interference filter, and the blue light is output through the optical fiber tube (or the optical fiber rod), thereby curing the composite resin material.
1。 The bulb used in the light curing machine is usually a 35mm, 12V/75W silver bowl bulb with a needle-like flat foot and a flat foot。 The bulb is the main component of the illuminating source, and it is prone to poor contact with the lamp holder during use, or oxide scale dirt on the needle-like and sheet-like flat feet. In these cases, use asbestos or sandpaper to remove dirt to keep the bulbs bright. In addition, the use of silver bowl bulbs for a long time, the silver bowl coating may fall off, affecting the luminous effect, professional maintenance personnel should be replaced with new bulbs of the same specification.
2。 In the silver bowl bulb feeding point circuit, there are thermal protectors connected in series。 If the thermal protector is damaged, the 12V voltage of the bulb will not be added, and it is impossible to have a blue light output. After the check is confirmed, the new thermal protector should be replaced and connected in series in the bulb feed circuit.
3. The trigger switch is a key component for controlling the operation of the electronic switch circuit. The trigger switch is normal, and the electronic switch circuit can work normally after pressing, and the bulb will be bright. The inside of the trigger switch is a contact type structure, and the contact between the contacts is prone to occur over a long period of time. The contacts should be cleaned regularly with an electronic cleaner. If the trigger switch is damaged, replace the trigger with the same specification.
4. The filter of the interference filter is coated with a filter material to ensure that the useful light passes through and the unwanted light is filtered out. If the long-term use of the light curing machine filter material is off, it will affect the light effect of the output light. At this time, you should find a new filter to be purchased.
5, the optical fiber tube (or fiber rod) should keep the end face clean, the optical fiber tube can not be bent. When the light curing machine is used, the end face is kept at a distance of 2 mm from the surface of the composite resin material, and the end face cannot be attached with dirt, otherwise it should be removed in time to ensure the best conduction effect of the blue light.
6。 When the light curing machine is in normal use, the cooling fan must be running。 If the fan does not turn, check if the fan is broken。 If it is damaged, replace it with a new one。
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