The invention relates to an optical arrangement comprising a plurality of transmitter elements and/or receiver elements, a plurality of diffractive and/or refractive optical elements and an optical carrier for the diffractive and/or refractive optical elements, wherein the optical system carrier has...http://www.google.com.tw/patents/US6982839?utm_source=gb-gplus-share專利 US6982839 - Optical transmitter and receiver arrangement
