Human Retinal Photoreceptor-Inspired Sensor with Adjustable Gain from 0.1–10<sup>6</sup> and Wide Dynamic Range Over 140dB

Qi, Yihong; Liu, Xiaolin; Feng, Zhenhao; Li, Qian; Su, Kuiren; Zhou, Xianda; Guo, Jianping; Wang, Kai

doi:10.1109/iedm19574.2021.9720558

Cited by 5 publications

(2 citation statements)

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“…In this work, a new approach to eye tracking for the AR/VR based on corneal reflection method has been proposed by using a MEMS scanner and a VCSEL together with a DCLAS based on PD-MOS [5] that have high signal to noise ratio (SNR), wide dynamic range (WDR) and high spatial resolution to measure and track eyeball's movement by detecting the reflected light in real time [5][6].…”

Section: Introductionmentioning

confidence: 99%

P‐44: A Smart Eye Tracking System Based on Linear Array Sensors

Jin,

Gao,

Zhou

et al. 2024

Symp Digest of Tech Papers

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Eye tracking as an important human‐machine interface plays avital role in immersive displays such as augmented reality (AR) and virtual reality (VR). Different from near infrared (NIR) camerabased methods, the proposed corneal reflection method based on principle of eyeball co‐vision takes advantage of using eye‐safe 940‐ nm vertical cavity surface emitting laser (VCSEL) and dual‐column linear array sensor (DCLAS) to obtain coordinates of the eyeball's moving positions through detecting its reflected light. The DCLAS not only delivers high sensitivity at eye‐safe NIR wavelength, but also has high spatial resolution for position accuracy and wide dynamic range to suppress ambient light influence. Together with low power consumption, good wearability, low data redundancy and simple computing algorism, a great promise can be made to enable smart eye tracking for AR/VR.

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Section: Introductionmentioning

confidence: 99%

P‐44: A Smart Eye Tracking System Based on Linear Array Sensors

Jin,

Gao,

Zhou

et al. 2024

Symp Digest of Tech Papers

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“…For instance, rod cells mainly work in scotopic vision but with a high sensitivity so that the weak light of 10 -6 mL can be sensed. While cone cells mainly play a role at photopic conditions with a wide dynamic range of over 180dB [1]- [2]. However, such demanding requirements can hardly be met by any conventional CMOS active pixel image sensors, which generally have a dynamic range of approximate 40-70 dB with a non-adjustable photoelectron conversion gain or sensitivity [3]- [9].…”

Section: Introductionmentioning

confidence: 99%

A Retina-Inspired Image Sensor Array Based on Randomly-Accessible Active Pixel Sensor

Yang

Feng

Gao

et al. 2022

IEEE J. Electron Devices Soc.

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Human retina is by nature a superior image sensor with a high sensitivity, wide dynamic range as well as low power consumption. In this paper, an image sensor array based on randomly-accessible active pixel design is studied where to mimic retinal photoreceptor, a photodiode-body-biased MOSFET (PD-MOS) with an adjustable gain of 10-420000 (higher than 10 5 ), a wide dynamic range of 140 dB and a spectral responsibility of 3-25000A/W from near UV to near IR wavelengths, is proposed. The image sensor array can capture images under light intensity ranging from 10nW/cm 2 to 3mW/cm 2 and its dynamic range is approximately 110dB.

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A five-transistor active pixel sensor with a wide dynamic range and a high-speed pixel operation

Gao

et al. 2023

2023 7th IEEE Electron Devices Technology &Amp; Manufacturing Conference (EDTM)

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Human Retinal Photoreceptor-Inspired Sensor with Adjustable Gain from 0.1–10⁶ and Wide Dynamic Range Over 140dB

Cited by 5 publications

References 5 publications

P‐44: A Smart Eye Tracking System Based on Linear Array Sensors

P‐44: A Smart Eye Tracking System Based on Linear Array Sensors

A Retina-Inspired Image Sensor Array Based on Randomly-Accessible Active Pixel Sensor

A five-transistor active pixel sensor with a wide dynamic range and a high-speed pixel operation

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Human Retinal Photoreceptor-Inspired Sensor with Adjustable Gain from 0.1–106 and Wide Dynamic Range Over 140dB

Cited by 5 publications

References 5 publications

P‐44: A Smart Eye Tracking System Based on Linear Array Sensors

P‐44: A Smart Eye Tracking System Based on Linear Array Sensors

A Retina-Inspired Image Sensor Array Based on Randomly-Accessible Active Pixel Sensor

A five-transistor active pixel sensor with a wide dynamic range and a high-speed pixel operation

Contact Info

Product

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Human Retinal Photoreceptor-Inspired Sensor with Adjustable Gain from 0.1–10⁶ and Wide Dynamic Range Over 140dB