Abstract: Embodiments are disclosed for a single RGBIR camera module that is capable of imaging at both the visible and IR wavelengths. In some embodiments, a camera module comprises: an image sensor comprising: a microlens array; a color filter array (CFA) comprising a red filter, a blue filter, a green filter and at least one infrared (IR) filter; and a pixel array comprising pixels to convert light received through the color filter array into electrical signals; and an image signal processor (ISP) configured to: initiate capture of a first frame by reading signal pixels from the pixel array; initiate capture of a second frame by reading IR pixels from the pixel array; align the first and second frames; and extract the second frame from the first frame to generate a third enhanced frame.

Abstract: A multispectral sensing device includes a first die, including silicon, which is patterned to define a first array of sensor elements, which output first electrical signals in response to optical radiation that is incident on the device in a band of wavelengths less than 1000 nm that is incident on the front side of the first die. A second die has its first side bonded to the back side of the first die and includes a photosensitive material and is patterned to define a second array of sensor elements, which output second electrical signals in response to the optical radiation that is incident on the device in a second band of wavelengths greater than 1000 nm that passes through the first die and is incident on the first side of the second die. Readout circuitry reads the first electrical signals and the second electrical signals serially out of the device.

Abstract: Disclosed herein are cameras and image sensors, and electronic devices containing them, having pixel arrays operable both for obtaining images and detecting flicker in ambient light. For flicker detection, such as prior to image capture, light-generated current from a set of pixels of the pixel array is received at a transimpedance amplifier (TIA) that is formed in a common semiconductor substrate with the pixel array. An output signal of the TIA is digitized and signal processed to detect the flicker in the ambient light. Also disclosed are image sensors having pixel arrays with an embedded modulated light source. The modulated light source may be used for proximity detection, either by time-of-flight or intensity variation of reflected light.