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技術名稱 Technology
發明人 Inventor
鄭正元, 古達知, 吳乾埼,
所有權人 Asignee 國立臺灣科技大學

專利國家 Country 申請號 Application No. 專利號 Patent No. 中心案號 Serial No.
中華民國 105136693 I645159 1050003TW0
美國 15/281,099 US10120196B2 1050003US0
  點閱數:1015

技術摘要:
An apparatus to determine the displacement (or angle) with respect to scale. The V shaped prism divides one laser beam to two laser beam. These two laser beams meet same point on the scale and the –nth diffracted order of two beams have same direction. So the interference of two –nth diffracted order measures the photodetector. When the read head moves the intensity of interference will change and the photodetector can measure generate sinusoids signal.

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