Sensor with multiple focal zones

An image sensor including a planar sensor array, a lens configured to form an optical image on the planar sensor array and characterized by a locus of focal points on a curved surface, and a cover glass with multiple thickness levels or multiple cover glasses of different sizes. The one or more cove...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Gruhlke, Russell, Lasiter, Jon, Alam, Khurshid Syed, Kidwell, Donald William, Li, Kebin, Shenoy, Ravindra Vaman
Format:	Patent
Sprache:	eng
Schlagworte:	COLORIMETRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RADIATION PYROMETRY TESTING
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Beschreibung
Zusammenfassung:	An image sensor including a planar sensor array, a lens configured to form an optical image on the planar sensor array and characterized by a locus of focal points on a curved surface, and a cover glass with multiple thickness levels or multiple cover glasses of different sizes. The one or more cover glasses are configured to shift the locus of focal points for large field angles, such that there are multiple intersections between the planar sensor array and the locus of focal points for a large FOV, and thus multiple zones with best focus on the planar sensor array.