Ear thermometer with illumination
An ear thermometer has a light source to illuminate the field in front of the tip of the probe, such as the area around the ear canal, or the entire ear, to assist in insertion of the probe into the ear canal. The light source may consist of an incandescent lamp or one or more LEDs of the bright type, and application of the illumination may be controlled by a user activated switch to conserve battery life. The light source may be disposed in a raised protrusion on the housing of the thermometer such as near the top of the housing to supply divergent rays of light to the field of interest, such as the ear.
1 . An ear thermometer for measuring the temperature of a living being by inserting a portion of the thermometer in the ear of the being comprising:
a housing;
a probe attached to the housing, said probe having a tapered tip adapted to be inserted into an ear canal of the being;
a display for displaying a temperature measured by said thermometer; and
a light source disposed on said housing to supply illumination in front of the tip of said probe to illuminate at least the area around the being's ear canal as the tip of the probe is being inserted therein.
2 . The ear thermometer in accordance with claim 1 further comprising:
a switch in electrical communication with said light source; and
a source of electrical power,
said switch capable of being actuated to control the application of electrical power to said light source, thereby selectively controlling the light source in suppling illumination.
3 . The ear thermometer in accordance with claim 1 further comprising:
a raised protrusion disposed on said housing,
said light source disposed in said raised protrusion and oriented to provide illumination in front of the tip of said probe.
4 . The ear thermometer in accordance with claim 3 wherein said raised protrusion is disposed at a top end of the housing of the thermometer.
5 . The ear thermometer in accordance with claim 1 wherein the illumination provided by said light source is in the form of divergent rays.
6 . The ear thermometer in accordance with claim 1 wherein said light source comprises at least one incandescent lamp.
7 . The ear thermometer in accordance with claim 1 wherein said light source comprises at least one light emitting diode.
8 . The ear thermometer in accordance with claim 6 wherein said at least one light emitting diode is of the bright light emitting diode type.
9 . The ear thermometer in accordance with claim 1 wherein said probe defines an axis and at least some of the illumination from said light source intersects with said axis in front of the tip of said probe.
10 . The ear thermometer in accordance with claim 1 wherein the illumination provided by the light source illuminates the entire ear of the being.
11 . The ear thermometer in accordance with claim 1 wherein said probe is pivotally mounted to said housing.
12 . The ear thermometer in accordance with claim 1 wherein said probe is rotationally mounted to said housing.
13 . The ear thermometer in accordance with claim 1 wherein said probe is mounted to said housing at an oblique angle thereto.