DERMOSCOPY ILLUMINATION DEVICE WITH SELECTIVE POLARIZATION AND ORANGE LIGHT FOR ENHANCED VIEWING OF PIGMENTED TISSUE
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Abstract
The present invention relates generally to an illumination device used in dermoscopy. More particularly, the invention comprises an improved apparatus for enhanced imaging and illumination of the skin for medical examination and treatment. An array of LEDs encircle a magnifying lens assembly. One set of surrounding LEDs provides cross-polarized white light to aid in canceling the reflected light from the skin and creating less glare. Another set of surrounding LEDs provides non-polarized white light for traditional immersion fluid dermoscopy or for non-polarized viewing of the skin. A third set of surrounding LEDs provides polarized colored light, wherein the wavelength color is selected at a color wavelength that maximizes the viewing of skin pigment regions which is important for early detection of skin cancers and other skin diseases. In an embodiment of the invention the colored LEDs comprise orange light at a wavelength of 588 nm. The present invention also discloses that the range of colored LEDs in the orange portion of the visible spectrum, namely at 581 nm to 600 nm wavelengths.
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