This article compares Frequency Modulated Continuous Wave (FMCW) and Time of Flight (ToF) for LiDAR. In summary, FMCW is better in longer term but ToF is still better now. What are FMCW and ToF? Lidar can take on several different modalities, which can be classified by their dependence on incoherence or coherence of the laser…

3D sensing iToF vs. dToF

Figure 1. Apple’s promotion of DTOF

Strategy Analytics research director Sravan Kundojjala has said that in 2Q22, the inventories of the world’s major IC design companies increased by 13% QoQ, reaching a new high since 2019, but the cumulative revenue fell by 1%, marking the fourth consecutive quarter that the growth rate of inventory outpaced that…

13 Sep 2022

VR/AR manufacturers, and is expected to become the mainstream solution in the industry in the future. Since 2H21, VR/AR manufacturers have gradually installed Micro-OLED solutions on new products. We believe that Micro OLEDs have been gradually introduced into commercial use and are expected to become the mainstream solutions in the…

According to Yole Intelligence, with a strong emergence of the intelligent driving industry in China, Chinese manufacturers such as Hesai have become important players in the global LiDAR market. Among the LiDAR manufacturers, Hesai ranks first in ADAS design wins, L4 autonomous driving LiDAR market share, and total revenue for…

Short-wave infrared (SWIR) defines a specific wavelength range over which optical and electronic components are designed and coated. What is near infrared (NIR) and shortwave infrared (SWIR)? What are their advantages and suitable applications? Typically we define near infrared (NIR) from 780 nm to 1400 nm and shortwave infrared (SWIR) from 1400 nm to 3000 nm. But it is also common to refer to the entire…

Human Presence Sensing Using Low Cost ToF is becoming a new trend. One of the first patents by ST was granted in 2019. https://patents.justia.com/patent/20190034609. Apple also has filed similar concept in 2021. https://patents.google.com/patent/US20170193282A1/en The most cent product is from Lenovo and ST. In 2022 Aug, ST announce that its latest…