| 摘要 |
<p>A rear view mirror assembly (1) with an automatic glare-proof function includes a battery (E1), a daytime/nighttime deciding circuit (3) for deciding whether the current time is daytime or nighttime, an integrating circuit (4), an electronic switch (FET1), a glare-proof/non-glare-proof deciding circuit (5) for deciding whether an electrochromic mirror element (2) is to be set to a glare-proof state or a non-glare-proof state, and a driving circuit (6) for applying a DC voltage to the electrochromic mirror element (2). The daytime/nighttime deciding circuit (3) is constantly applied with a DC voltage from the battery (E1). When the daytime/nighttime deciding circuit (3) decides that the current time is daytime, the electronic switch (FET1) is turned off, and when the daytime/nighttime deciding circuit (3) decides that the current time is nighttime, the electronic switch (FET1) is turned on. Therefore, the voltage is applied to the glare-proof/non-glare-proof deciding circuit (5) and the driving circuit (6) only when a decision has been made that the current time is nighttime. Thereby, the power consumption of the battery (E1) can be decreased. <IMAGE></p> |
