STATE MONITOR AND OPTICAL MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a state monitor designed such that while an image of a state of a passenger, which can be monitored, is stably formed, an increase in size of the structure of the entire device can be hindered as much as possible, and an increase in power consumed by a projector can also be hindered as much as possible.SOLUTION: An optical member 11 that is used in a state monitor for monitoring a state of a passenger by processing an image formed by an imaging part and that distributes light, emitted by a light-emitting part, to a regulated area comprises: a projecting part 62, an introducing part 64, a reflecting part 66, a cylindrical part 77, and prism parts 79, 83. In the optical member 11, illuminating light made incident on from the projecting part 62 is passed through a connection face 68, introduced to the cylindrical part 77 of a light emission part 75, and refracted when passed through a cylindrical face 89. Illuminating light made incident on from an inner peripheral face 72 of the introducing part 64 and guided to the prism parts 79 and 83 is refracted when passed through inclined faces 81, 85. Thus, a light distribution characteristic is achieved for the regulated area.SELECTED DRAWING: Figure 6