Portable image scanner with optical position sensors

Details Portable image scanner with optical position sensors Portable image scanner with optical position sensors

1998-03-20

1999-12-14

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

358473, 23546213, H01J 4014

Patent

active

060021241

ABSTRACT:
An imaging device may comprise an image head having an elongate slot therein with first and second lengthwise ends. The image head may also include a first navigation sensor aperture and a second navigation sensor aperture positioned adjacent the elongate slot at positions other than positions that are aligned with the first and second lengthwise ends of the elongate slot. An image sensing system optically aligned with the elongate slot in the image head is responsive to image light passing through the elongate slot and produces an image signal based on the image light. A first navigation sensor optically aligned with the first navigation sensor aperture in the image head is responsive to first navigation light passing through the first navigation sensor aperture and produces a first navigation data signal based on the first navigation light. A second navigation sensor optically aligned with the second navigation sensor aperture in the image head is responsive to second navigation light passing through the second navigation sensor aperture and produces a second navigation data signal based on the second navigation light.

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