Systems and methods for controlling lighting strength of camera system by time-matched intermittent illumination

Abstract

A camera system with lighting strength control includes: an image sensor for capturing images of a scene; a light source for illumination of the scene; and a signal generator coupled with the image sensor and the light source to generate (a) a first signal for controlling image capture by the image sensor and (b) a second signal for controlling a duty cycle of the light source. A method for controlling the lighting strength of the camera system which includes the image sensor, the associated light source, and the associated signal generator, includes: (a) generating, by using the signal generator, a first signal that controls image capture by the image sensor, and (b) generating, by using the signal generator, a second signal that controls the duty cycle of the light source.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of US Patent Application No. 13 / 622,976 filed on September 19, 2012. This application also claims priority to US Provisional Application No. 61 / 710,480, filed October 5, 2012. The entirety of the above application is incorporated by reference into this application. Background technique [0003] The integrated camera and lighting system can obtain images in darker environments. Its existing applications include medical endoscopes, coil inspection lenses, borescopes, and machine vision. In order to generate better image brightness, appropriate luminous intensity is required, and luminous intensity is usually related to some factors, such as the scene of the image, the scene configuration under the camera system and lighting system, and the performance of the camera and lighting system. For example, a brighter object requires less illumination than a darker object. Accordingly, ...

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The light source is used to illuminate the scene

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