2-D Planar VCSEL Source for 3-D Imaging

An apparatus and a method are provided for 3-D imaging and scanning using a 2-D planar VCSELs source configured as a lightfiled optical source. VCSELs are configured in different 2-D spatial arrangements including single VCSEL, or preferably a group, cluster, or array each to be operated effectively...

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Bibliographic Details
Main Authors GHOSH CHUNI LAL, SEURIN JEAN FRANCOIS, WATKINS LAURENCE S
Format Patent
LanguageEnglish
Published 17.12.2015
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
BASIC ELECTRIC ELEMENTS
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
DEVICES USING STIMULATED EMISSION
ELECTRICITY
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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Summary:An apparatus and a method are provided for 3-D imaging and scanning using a 2-D planar VCSELs source configured as a lightfiled optical source. VCSELs are configured in different 2-D spatial arrangements including single VCSEL, or preferably a group, cluster, or array each to be operated effectively as an independent VCSEL array source. A set of microlens and an imaging lens positioned at a pre-determined distance collimates radiation from each VCSEL array source to a set of parallel beams. The parallel beams from different VCSEL array sources generated in a rapid pre-determined timing sequence provide scanning beams to illuminate an object. The radiation reflected from the object is analyzed for arrival time, pulse shape, and intensity to determine a comprehensive set of distance and intensity profile of the object to compute a 3-D image.
Bibliography:Application Number: US201414304872