Patent ID: 6381020
Filing Date: 2002-04-30
Classification: G06K,H05K

Abstract:
An optical sensor comprising:a holder provided on a circuit board, the holder having first and second cavity means formed therein; first body means including LEDs combined therewith for directing a light onto an object to illuminate the object with the light and generate a reflected light reflected from the object, the first body means comprising a cassette which is fitted into and held in the first cavity means of the holder for removal, the first body means being electrically connected with the circuit board to complete a first electronic circuit through the LEDs when fitted into the first cavity means; and second body means including photo detecting means combined therewith for receiving and detecting the reflected light reflected from the object, the second body means comprising a cassette which is fitted into and held in the second cavity means of the holder for removal, the second body means being electrically connected with the circuit board to complete a second electronic circuit through the photo detecting means when fitted into the second cavity means, wherein the object comprises a printed product including contents printed thereon, the optical sensor being intended to read out the contents of the printed product.