Abstract: Various embodiments of the present disclosure are directed towards an integrated chip. The integrated chip includes a first pixel region and a second pixel region within a substrate. A first recess region is disposed along a back-side of the substrate within the first pixel region. The back-side of the substrate within the first pixel region is asymmetric about a center of the first pixel region in a cross-sectional view. A second recess region is disposed along the back-side of the substrate and within the second pixel region. The back-side of the substrate within the second pixel region is asymmetric about a center of the second pixel region in the cross-sectional view. The first recess region and the second recess region are substantially symmetric about a vertical line laterally between the first pixel region and the second pixel region.

Abstract: Various embodiments of the present disclosure are directed towards an imaging device including a first image sensor element and a second image sensor element respectively comprising a pixel unit disposed within a semiconductor substrate. The first image sensor element is adjacent to the second image sensor element. A first micro-lens overlies the first image sensor element and is laterally shifted from a center of the pixel unit of the first image sensor element by a first lens shift amount. A second micro-lens overlies the second image sensor element and is laterally shifted from a center of the pixel unit of the second image sensor element by a second lens shift amount different from the first lens shift amount.

Abstract: In some embodiments, an image sensor is provided. The image sensor includes a photodetector disposed in a semiconductor substrate. A wave guide filter having a substantially planar upper surface is disposed over the photodetector. The wave guide filter includes a light filter disposed in a light filter grid structure. The light filter includes a first material that is translucent and has a first refractive index. The light filter grid structure includes a second material that is translucent and has a second refractive index less than the first refractive index.

Abstract: Various embodiments of the present disclosure are directed towards an integrated chip. The integrated chip includes a first photodetector disposed in a first pixel region of a semiconductor substrate and a second photodetector disposed in a second pixel region of the semiconductor substrate. The second photodetector is laterally separated from the first photodetector. A first diffuser is disposed along a back-side of the semiconductor substrate and over the first photodetector. A second diffuser is disposed along the back-side of the semiconductor substrate and over the second photodetector. A first midline of the first pixel region and a second midline of the second pixel region are both disposed laterally between the first diffuser and the second diffuser.

Abstract: An auxiliary guiding device for the blind includes a guiding brick, a reader, text-to-speech (TTS) component and a power supply unit. The guiding brick is embedded with an electronic tag including a memory chip with a connected first antenna. The reader has a radio frequency transceiver module, a second antenna and a microprocessor, wherein the radio frequency transceiver module emits the energy of a radio wave to the electronic tag through the second antenna for driving the electronic tag to transmit the guidance information from the radio frequency transceiver module and then the microprocessor converts the guiding information to digital data. The TTS component has an input terminal of digital data for converting the digital data transmitted by the microprocessor to analog signals, such that the analog signals drive a voice synthesizer and the input digital data are broadcasted by means of speech.