Illumination Apparatus for Use in Examining a Body of Living Tissues
First Claim
1. An illumination apparatus for use in examining a body of living tissues, the apparatus comprising a head for contacting the body of living tissues, a light source mounted in the head for illuminating the tissues, and an annular switch disposed around the light source, the annular switch being adapted automatically to permit illumination of the light source at an examination intensity when the head contacts the body at least around an annular contact area on the head corresponding to the annular switch.
1 Assignment
0 Petitions
Accused Products
Abstract
An illumination apparatus for use in examining a body of living tissues, the apparatus comprising a head for contacting the body of living tissues, a light source mounted in the head for illuminating the tissues, and an annular switch disposed around the light source, the annular switch being adapted automatically to permit illumination of the light source at an examination intensity when the head contacts the body at least around an annular contact area on the head corresponding to the annular switch.
9 Citations
59 Claims
- 1. An illumination apparatus for use in examining a body of living tissues, the apparatus comprising a head for contacting the body of living tissues, a light source mounted in the head for illuminating the tissues, and an annular switch disposed around the light source, the annular switch being adapted automatically to permit illumination of the light source at an examination intensity when the head contacts the body at least around an annular contact area on the head corresponding to the annular switch.
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34. An illumination apparatus for use in examining a body of living tissues, the apparatus comprising a head for contacting the body of living tissues, a light source mounted in the head for illuminating the tissues, the light source comprising a plurality of light emitting diodes, a power circuit for providing electrical power to the light emitting diodes and a switch for switching the electrical power to the light emitting diodes to modify the illumination of the light source from a relatively low level intensity standby mode to a relatively high level intensity examination mode, the power circuit providing pulse width modulated voltage to the light emitting diodes at least in the standby mode.
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38. An illumination apparatus for use in examining a body of living tissues, the apparatus comprising a head for contacting the body of living tissues, a light source mounted in the head for illuminating the tissues, a switch adapted automatically to permit illumination of the light source at an examination intensity when the head contacts the body in a predetermined manner, a clock for measuring time, a time recorder for recording elapsed time, as measured by the clock, since the switch was last activated and the light source was last illuminated for a predetermined minimum period, and a control circuit adapted to reset the time recorder to record a zero elapsed time, the control circuit being operable after the switch has been activated and the light source has been illuminated for the predetermined minimum period.
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Specification