<p>A system and method for accurately determining the positioning of a lens system. The lens system includes a lens and a variable light reflecting surface. A position sensor includes a light source and a light detector. An initial signal is sent from the light source to the variable light reflecting surface. The light reflecting surface reflects the initial signal to the light detector at a reflection region. The intensity of the reflected signal is dependent upon the location of the reflection region. An electrical output signal is generated based upon the reflected signal from the light source, with the electrical output signal providing positioning information for the lens system.</p>
申请公布号
WO2005116713(A1)
申请公布日期
2005.12.08
申请号
WO2005IB01456
申请日期
2005.05.27
申请人
NOKIA CORPORATION;NOKIA, INC.;KAUHANEN, PETTERI;RYYNANEN, MATTI;JALKANEN, JUKKA;JANSSON, ANDERS
发明人
KAUHANEN, PETTERI;RYYNANEN, MATTI;JALKANEN, JUKKA;JANSSON, ANDERS