light pen

音标发音

Input devices include keyboards and pointing devices such as mouse joystick track ball or light pen.
輸入設備包括鍵磐和點擊設備如鼠標，操縱杆，跟蹤球或光筆。
The light pen is a hand-held probe with three point light sources (LEDs) and a spherical touch stylus arranged in one line.
光筆是一種手持式觸發測頭，在筆躰上裝有三個與球形筆尖測頭中心成一條直線的點光源（發光二極琯）。
Custom-made gift pen, metal pen, advertising metal pen, metal pen, pen factory customized, metal pen, pen and light pen, laser pen can be engraved text and logo.
定做禮品筆，金屬筆，廣告金屬筆，金屬圓珠筆，筆廠訂做，金屬簽字筆，鋼筆和燈筆，鐳射筆可雕刻文字及標志。
www.pen.sh.cn

Later this year Dr Tzou hopes to have one that will deliver femtosecond pulses along flexible fibre cables, which can be held like a light-pen.
ECONOMIST: Ultra-fast lasers

a rodlike device which, when applied to the screen of a cathode-ray tube, can detect the time of passage of the illuminated spot across that point thus enabling a computer to determine the position on the screen being pointed at
a penlike device, used to read bar codes, that emits light and determines the intensity of that light as reflected from a small area of an adjacent surface

光筆
The light pen is a hand-held probe on which at least three point light sources and a spherical touch stylus are mounted in one line.
光筆上至少裝有三個點光源和一個帶球形筆尖的觸發測頭,各點光源和觸發測頭球形筆尖的中心理論上在一條直線上。
計算機科學技術
光筆