Optically coupled focal plane arrays using lenslets and multiplexers

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867714

Veldkamp, Wilfrid B ^[1]

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1. Lexington, MA

A detector array including a substrate having an array of diffractive lenses formed on the top side of the substrate and an array of sensor elements formed on the backside of the substrate. The sensor elements within the sensor array are oriented on the backside so that each sensor is aligned to receive light from a corresponding diffractive lens of the lens array. The detector array may also include a second substrate having an array of diffractive elements formed on one of its surfaces, the second substrate being disposed above and in proximity to the top side of the other substrate so that the elements on the second substrate are substantially aligned with corresponding sensor elements and diffractive lenses on the other substrate.

• Research Organization: United States Air Force
• DOE Contract Number: F19628-85-C-0002
• Assignee: Massachusetts Institute of Technology (Cambridge, MA)
• Patent Number(s): US 4994664
• OSTI ID: 867714
• Country of Publication: United States
• Language: English

Related Subjects

optically
coupled
focal
plane
arrays
lenslets
multiplexers
detector
array
including
substrate
diffractive
lenses
formed
top
sensor
elements
backside
oriented
aligned
receive
light
corresponding
lens
surfaces
disposed
proximity
substantially
sensor element
plane array
sensor array
detector array
optically coupled
focal plane
diffractive element
diffractive lens
receive light
active element
active elements
sensor elements
elements formed
diffractive elements
lens array
/250/359/706/