| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a doorphone device which obtains a color image of good color reproducibility by using visible light for lighting without making a visitor feel such unpleasantness as to be photographed and further to which the function of a crime preventing device is added. SOLUTION: This doorphone device 1a is constructed by connecting indoor equipment 4 having a display device 2, a receiver 3, etc., and outdoor equipment 10 having a television camera 5 for color photographing, an illuminator 6, a calling button 7, a microphone 8, a speaker 9 and an infrared sensor 12, etc., with a cable 11. The illuminator 6 is a light source generating visible light and is formed integrally with the calling button 7. It is possible to easily and visibly recognize the position of the calling button 7 even at night and also to photograph a color image of good color reproducibility without giving a visitor unpleasant feeling. Also, the infrared sensor 12 can check a suspicious person.</p> |
