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A portable information device such as a portable telephone, portable electronic mail device or portable navigator capable of measuring UV-rays with no deterioration of the display function is provided. In the device, a UV-ray sensor is disposed in an information display region. The UV-sensor has lig

A portable information device such as a portable telephone, portable electronic mail device or portable navigator capable of measuring UV-rays with no deterioration of the display function is provided. In the device, a UV-ray sensor is disposed in an information display region. The UV-sensor has light sensitivity only to UV-rays and preferably has a light receiving surface made of a compound semiconductor.

대표청구항 ▼

1. A portable information device having predetermined functions, comprising: a UV-sensor being disposed in an information display of the portable information device. 2. A portable information device according to claim 1, wherein the UV-sensor is a sensor having light sensitivity substantially o

1. A portable information device having predetermined functions, comprising: a UV-sensor being disposed in an information display of the portable information device. 2. A portable information device according to claim 1, wherein the UV-sensor is a sensor having light sensitivity substantially only to UV-rays. 3. A portable information device according to claim 1, wherein the information display comprises an information display unit and a visible light transparent protection cover covering the information display unit, and a light receiving surface of the UV-sensor is disposed in parallel with the information display unit below the protection cover. 4. A portable information device according to claim 1, wherein the light receiving surface of the UV-sensor has a noble metal color. 5. A portable information device according to claim 4, wherein the light receiving surface of the UV-sensor is a compound semiconductor and the compound semiconductor is colorless transparent. 6. A portable information device according to claim 1, wherein the light receiving surface of the UV-sensor is a compound semiconductor and the sensor has a noble metal color. 7. A portable information device according to claim 1, wherein the light receiving surface has a color identical with or similar to that of the information display. 8. A portable information device according to claim 1, wherein the compound semiconductor is a non-single crystal III-V group compound semiconductor having hydrogen.