Cognex Corporation

Jens Ruetten

Laurens Nunnink

Saul Sanz Rodriguez

Carl W Gerst

William H Equitz

Matthew D Engle

Andreas Weber

Pepe Fernandez-Dorado

Esther Oteo

Bennet Heidekorn

Martijn Lambertus Peter Visser

This invention provides a system for separating a field of view (FOV) of a scene imaged by a vision system camera assembly, in which a separating mirror assembly redirects a first optical path of at least a first optics with respect to at least a first image sensor in the camera assembly. A first reflecting assembly redirects the first optical path from the separating mirror toward a first FOV. The first optical path is extended free of splitting the image. The separating mirror assembly redirects a second optical path of a second optics with respect to a second image sensor in the camera assembly. A second reflecting assembly redirects the second optical path from the separating mirror toward a second FOV. The second optical path is extended free of splitting the image projected from the scene on the second image sensor.

System and method for expansion of field of view in a vision system

Systems and methods reduce temperature induced drift effects on a liquid lens used in a vision system. A feedback loop receives a temperature value from a temperature sensor, and based on the received temperature value, controls a power to the heating element based on a difference between the measured temperature of the liquid lens and a predetermined control temperature to maintain the temperature value within a predetermined control temperature range to reduce the effects of drift. A processor can also control a bias signal applied to the lens or a lens actuator to control temperature variations and the associated induced drift effects. An image sharpness can also be determined over a series of images, alone or in combination with controlling the temperature of the liquid lens, to adjust a focal distance of the lens.

Systems and methods to reduce temperature induced drift effects on a liquid lens

A modular vision system that can include a housing with a faceplate and a first and second optical module mounted to the faceplate. Each of the first and second optical modules can include a mounting body, a rectangular image sensor, and an imaging lens that defines an optical axis and a field of view. The first optical module can be configured to be mounted to the faceplate in a first plurality of mounting orientations and the second optical module can be configured to be mounted to the faceplate in a second plurality of mounting orientations. The first and second optical modules can thus collectively provide a plurality of imaging configurations.

Modular vision systems and methods

Growing community of inventors

Aachen, Germany

Jens Ruetten