| 摘要 |
PROBLEM TO BE SOLVED: To provide a surreptitious photographing suppression system for making it difficult to perform neutralization.SOLUTION: An LED 231 mounted on a lens frame 251 radiates notification light 301 for notifying the neighborhood of being in an imaging state and direct light 303. Part of the direct light is reflected at an inner surface of the lens frame 251 to become reflection light 305 before being incident on an image sensor 203a. When an image sensor 203a detects no reflection light, imaging using a camera module is inhibited. Illegally covering the LED 231 to perform neutralization by inhibiting the notification light from being radiated results in a change in a light amount of the reflection light, which makes it possible to detect an illegal act to inhibit photographing. The LED 231 emitting blinking light having a pattern obtained using encryption can make it more difficult to perform neutralization.SELECTED DRAWING: Figure 5 |
