| 摘要 |
An optical keyless entry sensor system and method includes an optical sensor in association with a mirror that reflects light transmitted from the optical sensor, wherein reflected light is detectable by the optical sensor. An attenuation filter can be located between the mirror and the optical sensor, wherein the attenuation filter is configured to simulate a contamination of the optical sensor in order to determine an exact level of attenuation representative of contamination that causes a performance failure of the optical sensor, thereby providing data which is indicative of a dynamic range of the optical sensor, such that the dynamic range is utilized to enhance the performance of the optical keyless entry sensor system.
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