Specifications
Company
Singular Photonics — fabless SPAD image-sensor developer, Royal Observatory, Edinburgh, UK
Product Families
Litavis, Andarta and Sirona SPAD sensors (plus the TRR sensor used in Renishaw instruments)
Technology
Single-Photon Avalanche Diode (SPAD) arrays with in-pixel / on-chip digital computation
Litavis Format
256 x 256 pixel photon-counting array with a 64 x 64 macropixel timing grid
Litavis Package
3.5 mm x 3.5 mm backside-illuminated (BSI) 3D-stacked SPAD sensor
Litavis Modes
World-first simultaneous intensity, photon timing, histogramming and photon-statistics modes
Timing Resolution
Picosecond-resolution photon timing with multi-event time binning per excitation cycle
TDC / TCSPC
Multiple TCSPC and high-throughput TDC configurations with internal or external clocks
Programmability
Software-configurable sensing architecture; change modality without new hardware designs
On-Chip Processing
In-pixel histogramming and photon-event processing cut the raw data moved off-chip
Andarta Format
5 mm x 5 mm miniature SPAD sensor for health, wearables and correlation spectroscopy
Andarta Techniques
FLIM, Diffuse Correlation Spectroscopy (DCS), FCCS and burst imaging
Sirona Format
512-pixel line sensor with two SPAD types per pixel and on-chip time binning
Sirona Techniques
Raman spectroscopy, Fluorescence Lifetime Imaging, Time-of-Flight and quantum sensing
Dynamic Range
High-dynamic-range photon-counting modes with selectable resolution and bit depth
Detection Modes
Windowed and coincidence-based detection for advanced temporal analysis
Output Modes
Combined timestamping and full-resolution imaging from the same sensor
Reference Design
TRR SPAD sensor selected for Renishaw's inVia Raman spectroscopy module
Quality
ISO 9001 certified, audited by BSI; former Arm CTO appointed to the board
Applications
Machine vision, industrial automation, physical AI, scientific discovery and medical imaging
Overview
Singular Photonics builds single-photon avalanche diode (SPAD) image sensors that move advanced computation into the pixel itself. Its flagship Litavis sensor is the first SPAD device to unify imaging, picosecond timing, histogramming and photon statistics on a single chip, delivering programmable multi-modal sensing that reconfigures in software.
By processing photon events on-chip, Singular Photonics sensors dramatically reduce the raw data transferred off-chip, cutting latency and power while improving real-time scalability. The portfolio scales from the 256 x 256 Litavis imaging sensor and the 5 x 5 mm Andarta correlation-spectroscopy sensor to the 512-pixel Sirona line sensor with dual SPAD types per pixel.
The sensors target machine vision, industrial automation, physical AI, medical and scientific imaging. The TRR sensor is already integrated into Renishaw's inVia Raman spectroscopy module, giving buyers a commercially validated single-photon detection path beyond conventional CMOS sensors.
Key Benefits
World-first in-pixel processing unifies photon counting, timing and histogramming on one chip. Picosecond timing and multi-event binning enable FLIM, DCS and quantum sensing. Software-configurable modes reduce time-to-market and hardware redesigns. Reduced data movement lowers latency and power for real-time edge imaging.
Applications
Machine vision and industrial automation, time-resolved spectroscopy and Raman instruments, fluorescence lifetime imaging (FLIM), diffuse correlation spectroscopy, quantum sensing, medical imaging and physical-AI perception systems.
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