| 摘要 |
A selectable field of view device is disclosed which is capable of expanding the relatively narrow field of view of a camera to nearly spherical proportions. The device includes a pair of signal diverters, such as mirrors (12, 14) in the case of light signals, each mirror's reflective surface being parallel to the other's reflective surface, and each mirror being independently rotatable about an X-axis and a Y-axis respectively. Each axis passes through a central portion of its respective mirror with the Y-axis intersecting the X-axis and the X-axis being relatively centered within the filed of view of a sensor. The mirrors may be driven by one or more motors (26). When one motor is used, a brake (84) and an idler (86) arrangement provided for rotation of one mirror while the other mirror remains stationary relative to its respective axis. In addition, when one motor is used, the sensor is rotated by the motor via a drive belt (32) such that the sensor rotates the same amount as does the mirror being rotated.
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