Mouth lamp

Abstract

The invention provides a mouth lamp which comprises a base and the like, wherein a circular hole is formed at the bottom of a lamp cup; a lamp post is sleeved in the circular hole; the lamp cup is formed by splicing a plurality of plates; a connecting line between two adjacent plates is positioned on a rotating paraboloid obtained by a parabola (y=0.005x2-0.35x+35.64, -70mm<=x<=70mm) which rotates for a circle along the y-axis; connecting lines of a plurality of parallel curved plates with the same width are obtained by cutting to be used as connecting lines of inner surfaces of each of the plates; a chord which passes through a front end point and a back end point of the cross section of the y-axis is formed on each curved plate along the direction perpendicular to a cutting surface; a point positioned on a perpendicular bisector of the chord in the cross section is taken as a center of a circle; a connecting line (the radius of which is 50mm) between the center of the circle and thetwo end points is taken as a circular arc line; a cambered surface formed by taking the shape of the circular arc line as a template and stretching leftwards and rightwards along the direction of theouter edge line of each curved plate is taken as the inner surface of each plate; and a light source filament of a halogen bulb is positioned on the focus of an imaginary paraboloid. The light spots of the mouth lamp provided by the invention are in regular rectangles in the position 800mm far away from a light source, so that a doctor can conveniently observe the mouth and can conveniently operate the mouth lamp.

Description

technical field [0001] The invention relates to a medical device, in particular to a dental cavity light using a halogen bulb as a light source. Background technique [0002] Dental light is a commonly used auxiliary equipment in dental treatment. It is used to illuminate the patient's oral area. In order for the doctor to clearly observe the patient's teeth and make accurate judgments, it is necessary to provide sufficient illumination in the patient's oral area. The existing The oral light is composed of a base, a support frame, an adjustable light frame, a lamp cup and a halogen bulb light source. The support frame is installed on the base, and the upper end of the support frame is fixedly connected with the adjustable light frame. On the outer surface of the lamp post, the halogen bulb light source is fixed on the head of the lamp post. The existing oral light has the disadvantages of irregular light spots and uneven illuminance at a distance of 800mm from the light sou...

AI Technical Summary

Problems solved by technology

The existing oral light has the disadvantages of irregular light spots and uneven illuminance at a distance of 800mm from the light source during use, so that when the doctor observes the patient's mouth, he needs to constantly adjust the light source to see the mouth clearly, which is very inconvenient for treatment. cumbersome operation

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