CMOS Sensor Quantum Efficiency API

Mapping photon fluxes into digital pixel signal-to-noise ratios, dark current, and full-well capacity.

The SensorArray interface transforms spectral photon irradiance into digital numbers (DN) by simulating the full photoelectric transduction chain of industrial CMOS image sensors.

Transduction Chain

Spectral Irradiance to Photon Flux:

SPECTRA // SNIPPET

N_{ph}(\lambda) = \frac{\Phi_e(\lambda) \cdot \Delta t \cdot A_{pixel}}{hc / \lambda}

Quantum Efficiency Conversion:

SPECTRA // SNIPPET

N_e = \int \eta(\lambda) N_{ph}(\lambda) d\lambda

Noise Injection: Shot noise (\sigma = \sqrt{N_e}), read noise (\sigma_{read}), and dark current (I_{dark}).
Analog-to-Digital Conversion (ADC): Quantization into 12-bit, 14-bit, or 16-bit linear integer values.

SPECTRA // SNIPPET

export interface SensorConfig {
  pixelPitchMicrons: number;
  fullWellCapacityElectrons: number;
  readNoiseElectronsRms: number;
  adcBitDepth: 12 | 14 | 16;
  darkCurrentEPerSec: number;
}