Bildsensor, Kamera und Abbildungssystem mit Asymmetrischer Lichtstreuender Schicht zur Verwendung in der Dreidimensionalen Bildgebung auf Basis von Lichttriangulation

Details

Veröffentlichungs-Nr.

EP4711708

Anmeldetag

17. September 2024

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

G01B11/25, G01S7/481(PACALA ANGUS et al.)(PENNEY CARL M et al.)

Abstract

Image sensor (331; 431; 531') for use in a camera (330; 530) of an imaging system (305) for three-dimensional imaging of an object (320) based on light triangulation, the camera (330; 530) and the imaging system (305). The image sensor (331; 431, 531') comprising an image sensing area (333; 433; 533) that comprises rows (438) and columns (435) of pixel elements configured to sense light. An asymmetrically light diffusing layer (337; 437; 537) covers the image sensing area (333; 433; 533) so that incident light towards the image sensing area (333; 433; 533) will pass through and be spread by the asymmetrically light diffusing layer (337; 437; 537). Said light asymmetrically diffusing layer (337; 437; 537) is configured to spread light in a high diffusion direction and in a low diffusion direction that is orthogonal to the high diffusion direction. The high diffusion direction is along said columns (435) of pixels and the low diffusion direction is along said rows (438) of pixels, whereby the light when reaching the image sensing area (433; 533) will be spread to a greater extent along the columns (435) of pixels than along the rows (438) of pixels.

Anmelder

Firma

Sick IVP AB

Land

🇸🇪 Schweden

Fachgebiete