Optical information reading apparatus
March 18, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3918028 Bar code scanner Bar code scanner Narrow-bodied, single-and twin-windowed portable laser scanning head for reading bar code symbols Method and apparatus for reading a bar code High-sensitive optical reading apparatus and method of reading optical information Optical reading apparatus with automatic gain control circuit Optical reading apparatus having a reading sensor of electronic scanning type Optical device for detecting coded symbols Hand held bar code reader with modulated laser diode and detector Patent #: 4694182 InventorsAssigneeApplicationNo. 028646 filed on 03/18/1987US Classes:235/472.01, Hand-held (e.g., portable)235/454, Optical235/462.42, Illumination detail (e.g., LED array)235/462.45Hand-held (e.g., portable)ExaminersPrimary: Pellinen, A. D.Assistant: Gaffin, Jeffrey Attorney, Agent or FirmForeign Patent References
International ClassG06K 007/10Foreign Application Priority Data1986-03-18 JPAbstractA handheld reader for reading optical information such as a bar code contains a reading sensor. An image of the optical information is imaged by light reflected from the optical information, via a reflecting mirror, a lens and a diaphram member, onto the reading sensor so that the image is converted into an electric signal. A pair of LEDs are disposed on both sides of the image sensor so that the images thereof are imaged near the optical information by light from the LEDs through the diaphram member, the lens and the reflecting mirror. The LEDs and reading sensor are controlled so that the LEDs are disabled from emitting light while the reading sensor performs the reading operation of the optical information. Instead of LEDs, optical fibers can be used.Field of SearchOptical | |
