- 多模式
- 光子計數
- 2D圖像
- 3D渡越時間
- TCSPC(時間相關單光子計數)
- 圖像尺寸:32x32 (1024) pixels
- 像素內計數器:6 bit (光子計數)
- 像素內TDC:10 bit (光子計時)
- 最大幀數:100,000 fps (burst)/ 10,000 fps (continuous)
- 時間分辨:312 ps – 0.9 ns
- 滿量程范圍:320 ns – 0.92 μs
- 硬件接口:USB 2.0
- 軟件界面:MATLAB
TCSPC(時間相關單光子計數)相機基于32x32智能像素,每個像素包含一個SPAD(單光子雪崩二極管)探測器和一個時間數字轉換器(TDC)。
在2D /強度模式下,SPAD陣列每幀提供1024個“字”,每個“字”6bit(即單幀光子計數動態最多64光子)。在3D深度分辨/計時模式下,SPAD陣列每幀提供1024個“字”,每個“字”10bit(即單幀時間分辨低至312 ps,滿量程范圍320 ns)。幀數在burst模式下高達100kfps(即最小積分幀時間為10 us),連續模式為10kfps。
Parameter | Notes | Min | Typ | Max | Units |
Resolution | number of pixels | 32x32 | pixels | ||
SPAD diameter | diameter of the SPAD into each pixel | 30 | μm | ||
Pixel pitch | size of each pixel | 150 | μm | ||
Pixel fill‐factor | with no microlens | 3.14 | % | ||
PhotonDetectionEfficiency(PDE) of SPAD detectors | @ 420nm | 50 | % | ||
@ 300nm and @650nm | 20 | % | |||
@ 800nm | 5 | % | |||
Dark count rate(DCR) | with VEX=5V | 100 | cps | ||
Afterpulsing | with 20 ns hold‐off time | 2.6 | % | ||
Optical cross‐talk | between nearest pixels | 0.01 | % | ||
Photon‐counting dynamics | number of bits of the in‐pixel counter | 6 | bit | ||
Photon‐timing dynamics | number of bits of the in‐pixelTDC | 10 | bit | ||
On‐board clock(fclock) | adjustable through the GUI interface | 70 200 | MHz | ||
TDC least significant bit(LSB)[1] | withfclock=200MHz | 312 | ps | ||
withfclock=160MHz | 390 | ps | |||
withfclock=70MHz | 900 | ps | |||
TDC full‐scale range(FSR)[1] | withfclock=200MHz | 320 | ns | ||
withfclock=160MHz | 400 | ns | |||
withfclock=70MHz | 920 | ns | |||
Full‐scale depth range | max scene depth, around the target distance (even kilometers from the camera, depending on the optical setup) | 48 | 60 | 138 | m |
TDC single‐shot precision(FWHM) | with clock=160MHz (all 32x32 TDC working in parallel) | 660 | ps | ||
Frame‐rate | Burst mode(limited by FPGA read‐out) | no limit | 100,000 | fps | |
Continuous mode(limited by USB2.0 link) | no limit | 10,000 | fps | ||
Camera power supply | +5 | V | |||
Lensconnector | 12mm–F/1.4C‐Mount |