Photoelectric sensor, range image producing apparatus and...

Details Photoelectric sensor, range image producing apparatus and... Photoelectric sensor, range image producing apparatus and...

2006-10-12

2008-10-14

Tarcza, Thomas H. (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S004010

Reexamination Certificate

active

07436495

ABSTRACT:
A method for producing a range data includes: irradiating a pulse light toward an object during a first time period; receiving a reflected pulse light during the first time period and a second time period; calculating a ratio between a first or second received light amount and a total received light amount, wherein the first received light amount is a light amount received during the first time period, wherein the second received light amount is a light amount received during the second time period, and wherein the total received light amount is a sum of the first and second received light amounts; and producing the range data based on the ratio.

REFERENCES:
patent: 5705807 (1998-01-01), Throngnumchai et al.
patent: 6906793 (2005-06-01), Bamji et al.
patent: 7259363 (2007-08-01), Deppe et al.
patent: 2004/0233416 (2004-11-01), Doemens et al.
patent: 2005/0162638 (2005-07-01), Suzuki et al.
patent: 2280025 (1995-01-01), None

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