公开(公告)号：US20150211920A1

公开(公告)日：2015-07-30

申请号：US14415513

申请日：2013-07-12

Applicant: OSRAM OPTO SEMICONDUCTORS GMBH

Inventor： Dirk Sossenheimer ,  Hubert Halbritter

IPC: G01J1/42 ,  G01J1/02 ,  G01J1/44

CPC classification number: G01J1/4204 ,  G01J1/0233 ,  G01J1/16 ,  G01J1/4257 ,  G01J1/44 ,  G01J2001/0257 ,  G01J2001/4247 ,  H05B37/0218 ,  Y02B20/46

Abstract: Fluctuation frequency (F) of an ambient light (S) is identified by: A) specifying first frequency (F1) and second frequency (F2), higher than said first frequency; B) measuring an optical power of the ambient light with a signal receiver (2) over a measuring time interval (Ti) during a total measuring time (T), which is shorter than or equal to a first cycle duration (P1) belonging to the first frequency; C) detecting the optical power of the ambient light in a time series over the total measuring time; D) determining at least one detection feature for identifying the fluctuation frequency by evaluating the time series; and E) identifying the fluctuation frequency of the ambient light as the first frequency or as the second frequency by means of the at least one detection feature.

Abstract translation: 通过以下方式来识别环境光（S）的波动频率（F）：A）指定高于所述第一频率的第一频率（F1）和第二频率（F2） B）在总测量时间（T）期间测量环境光的光功率与信号接收器（2）在测量时间间隔（Ti）之间，该总测量时间（T）小于或等于属于第一周期持续时间（P1）的总测量时间 第一个频率; C）在总测量时间内以时间序列检测环境光的光功率; D）通过评估时间序列来确定用于识别波动频率的至少一个检测特征; 以及E）通过所述至少一个检测特征来识别环境光的波动频率作为第一频率或第二频率。