Opto-Electronics


VCSEL modules for 3D gesture recognition

24 November 2021 Opto-Electronics

ams Osram has expanded its 3D sensing portfolio with four new VCSEL modules. The number of applications which utilise 3D sensing technology continues to increase, from the detection of the surroundings for robots to avoid collisions to the unlocking of smartphones via facial recognition. But 3D sensing also plays an important role for augmented and virtual reality (AR/VR) glasses.

Thanks to components like Bidos P2433 Q, various gestures can be reliably captured, raising the interaction between user and AR/VR glasses to a new level. The compact package also allows customers particular design flexibility. For augmented and virtual reality devices, as well as other 3D world-facing applications, the focus is on maximum user experience combined with compact and lightweight design. In the 3D sensing market, vertical cavity surface emitting lasers (VCSEL) have a huge impact due to their good beam quality, cost efficiency and simple design.

Bidos P2433 Q is available in four different versions including two different fields-of-illumination and two output power levels. The VCSEL-based modules with a size of 3,3 mm x 2,4 mm are suitable for 3D sensing applications using time-of-flight (ToF) measurement, which require a homogeneous illumination of the scene. Due to their wavelength of 940 nm, all modules are also free from the red glow effect which is perceived by the human eye as disturbing flickering.

The two higher-power modules with 6,5 W use dual-junction VCSELs for enhanced performance and efficiency of up to 45%. In addition, a photodiode monitoring system is integrated into the module as a special protection mechanism for eye safety. If the photodiode registers a change in the incidence of light – for example, if the optics are damaged – the current supply to the VCSEL is interrupted.

Besides 3D gesture recognition, the four new modules can also be used in industrial robotics for obstacle avoidance and virtual fencing, or in 3D face authentication systems in smart door locks or point-of-sale payment terminals.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Bridging the gap between MCUs and MPUs
Future Electronics Editor's Choice AI & ML
The Renesas RA8 series microcontrollers feature Arm Helium technology, which boosts the performance of DSP functions and of AI and machine learning algorithms.

Read more...
Enhanced code protection for USB µC portfolio
Future Electronics DSP, Micros & Memory
To help easily incorporate USB power and communication functionality into embedded systems, Microchip Technology has launched the AVR DU family of microcontrollers.

Read more...
Compact power relays
Future Electronics Interconnection
The new HE-R Series power relays by Panasonic Industry are PCB-mounted relays for easy board assembly, with both two- and four-pole contact arrangement options.

Read more...
Varistors for automotive applications
Future Electronics Circuit & System Protection
TDK Corporation has announced the addition of two new varistors to its AVRH series for automotive applications where both are characterised by the high electrostatic discharge-withstanding voltage demanded to ensure the safe operation of safety-critical automotive functions.

Read more...
Mouser broadens its LED lineup
Opto-Electronics
Mouser has broadened its LED lineup with diverse solutions designed to support lighting, medical, and smart home applications.

Read more...
High-quality optoelectronics components
Opto-Electronics
LEDs make up the bulk of Lite-On’s product range, and all popular types are manufactured from the ubiquitous round LEDs designed for through-hole mounting to state-of-the-art structures, integrated with programmable control systems.

Read more...
Power modules enable 15% weight reduction in race cars
Future Electronics Power Electronics / Power Management
Chosen for their small and lightweight characteristics, the Vicor modules efficiently step down the high-voltage accumulator’s power from 400 – 600 V to 27 – 38 V.

Read more...
Long-range passive infrared motion sensor
Future Electronics Passive Components
Panasonic Industry (PaPIRs) recently introduced he world’s most compact long-range passive infrared motion sensor, for installation heights of up to 15 metres.

Read more...
Bringing performance and security to BLE applications
Future Electronics Telecoms, Datacoms, Wireless, IoT
STMicroelectronics’ STM32WBA 32-bit wireless series brings designers the performance, efficiency, and security required for Bluetooth Low Energy 5.3-enabled applications.

Read more...
Double metallised polypropylene capacitors
Future Electronics Passive Components
The Electrocube 985B series offers high-frequency operation, high current and low ESR in a miniature package.

Read more...