| 摘要 |
PURPOSE:To construct an optical signal sensing device small and light, enhance the sensing accuracy and reliability, simplify the mechanism, and improve the economy by furnishing a plurality of individual photo reception sensors, and providing optical filters of different sorts in positions ahead the individual photo reception sensors. CONSTITUTION:An optical signal sensing device is composed of four spaces 3 partitioned from one another by radial partitioning walls having a cruciform section stretching in the center axis direction, quarter circular optical filters 4 of different sorts provided at the front ends of the radial partitioning walls 2, and individual photo reception sensors 5 arranged nearer the center line in the rear of each space 3. The light concentrated on a photo reception sensor body 1 penetrates the optical filters 4 and is divided into four fragments by the radial partitioning walls 2, and they reach the individual photo reception sensors 5, and there applicable signals are sensed. Thereby the device is made small and light, the sensing accuracy and reliability are enhanced, the mechanism is simplified, and economy enhanced. |
