FL-20BW
Cooled Monochrome CMOS Camera

20MP
Resolution

0.001

e-/pixel/s
Dark Current

20 Megapixels, Capturing High Resolution Images at Once
The 1-inch image sensor covers the best image quality FOV for Cmount; the sensor resolution is up to 20 megapixels，so the opticalresolution is not lost even when imaging with 4X and 10x
microscope objectives.

Normalized intensity

Advanced Cooling Technology Reduces Dark Current Down to 0.001e-/pixel/s
Based on Tucsen's professional cooling technology from sCMOS cameras,
FL-20BW can achieve a dark current level as low as 0.001e/pixel/s, whichsignificantly reduces the hot pixel noise during long exposure time.

10.5001000

2000
Position (pixel)

3000

1500

2000

2500

3000

0.1Exposure time:10s

0Raw data, no DSNU/PRNU calibration

High SNR, Balanced with Exposure Time
Quantum efficiency and noise correspond to signal and noise. Respectively, the higher the ratio, the higher the signal-to-noise ratio. While
providing high quantum efficiency of 84%, the FL-20BW strives for excellence in noise control, reducing read noise to 0.6e- and dark current to0.001e-/s, which makes FL-20BW the best camera for High signal-to-noise ratio balanced with exposure time.

Quantum Efficiency
Readout Noise2 + Dark Current x Time

Red circle area: Under short-term exposure, sCMOS has the best signal-

SNR

to-noise ratio because of its high quantum efficiency and low readout

1.2

noise.

10.8

Blue circle area: At the exposure time around above 1 second. The FL-

0.6

20BW maintains a better signal-to-noise ratio because of the combined

0.4

advantages of low readout noise and dark current noise, while the SNR of0.2sCMOS drops rapidly, because of the high dark current noise .

00.01

0.1

1FL-20BW

10sCMOS

100Exposure time ( s )Cooled CCD

The Core Advantage of the FL-20BW: the Most Comprehensive Performance
In the past decade, CCD has gradually withdrawn from the scientific imaging arena. Thelower-noise , faster-speed sCMOS is the leader in advanced scientific imaging. However,sCMOS still does not solve the problem of high dark current noise and high cost. So inapplications which require long exposure time and the need for cost-effective scientificimaging, users have to continue to use very old CCD cameras. Now, Tucsen has introduced
the FL-20BW camera, which achieves the same level of CCD as the dark current noise andcost performance. At the same time, it has the typical characteristics of CMOS: lower readout
noise and faster speed. It is a camera with the most comprehensive performance.

CCD

Frame Rate
Readout
Noise

Cost
Advantage

Quantum
Efficency

Dark
Current

Disadvantages of cooled CCD cameras: low speed, high readout noise, and discontinued production.
Cooled CCD cameras typically have only 10-20fps, which is unsustainable for high frame rates applications.
Its readout noise is usually 5-10 e-, so the SNR of low-light imaging is low. Moreover, in the process of image

Full Wellsensor production suspension, there have been no new technologies, nor new products are available.

Frame RatesCMOS

Readout
Noise

Cost
Advantage

Quantum
Efficency

Dark
Current

The dark current noise of the cooled sCMOS camera is only slightly less than 1 electron/second, and thesignal-to-noise ratio drops rapidly for long exposure times. At the same time, the price of sCMOS is higher
than CCD, so it is difficult to completely replace the application of CCD cameras.

Full Well

Frame Rate

Readout
Noise

Disadvantages of sCMOS cameras: high dark current noise, high cost.

FL-20BW
Cost
Advantage

The FL-20BW camera achieves the same level of CCD camera as dark current noise and price/performance
ratio, while offering the typical characteristics of CMOS: l ower readout noise and faster speed. It is the most

Dark
Current

Quantum
Efficency

balanced camera with comprehensive performance.

Full Well

QE(%)

PeakQE: 84% @ 495 nm

Linearity: 99.96%
2624.51002099.6

8060

1399.640699.9

2000.0

WavelengthFL-20BW : Quantum efficiency curve

0.018.1

36.3

54.4

FL-20BW: Light response curve

68.0Camera Specifications

Software Description
FL-20BW supports Tucsen standard SDK development kit, supports

Model

FL-20BW

Image Sensor

1" CMOS,(15.86mm)

Color/Mono

MonoResolution

5472(H) x 3648(V)Pixel size

2.40μm x 2.40μm

Quantum efficiency

84%@495nm

Dark current

0.001e-/pixel/sApple Mac OS dual-systems with advanced "real-time stitching"

DSNU

0.2e-

and "real-time EDF" algorithms, and so on.

PRNU

0.8%

Readout noise

0.6e-

Full well capacity

16000e-Shutter mode

RollingCooling-15 ℃* Real-time Image Stitching\ EDF \ 3D Noise Reduction

16 fps @ 5472 x 3648( 8bit ), 8 fps @ 5472x3648 ( 16bit )Real-time fluorescence image synthesis and editing

Frame Rate

53 fps @ 2736 x1824 ( 8bit ), 27 fps @ 2736x1824 ( 16bit )Microsoft Directshow, Twain video interface, and supports Mosaic
2.1 software.

Mosaic 2.1 software is a large imaging software developed by
Tucsen to support Tucsen's full range of products. It has threemodules: camera control, image processing and measurement. Its
core features include compatibility with Microsoft Windows andMosaic 2.1 Key Features

67 fps @ 1824 x1216 ( 8bit ), 67fps @ 1824 x1216 ( 16bit )HDR image synthesis

Binning mode

2x2, 3x3, 4x4, 8x8Micro-imaging-based intelligent automatic exposure

Exposure settings

Auto/ManualIntelligent flat field correction based on dynamic calculation

Exposure time

32us - 1hour

Smart measurement workflow

Image Format

JPG/PNG/TIFF/DICOMSupports single shot, delayed camera

Data interface

USB3.0User parameter group save and load

Bit depth

16bit/8bit

Dynamic\static measurement

Power supply

12V/8A

Customize measuring gauges, layers, precision

Camera weight980g

Customize image naming, style, save location

PC software

Mosaic 2.1

Implements drawing: points, lines, rectangles,polygons, circles, arcs, angles

Operating system

Windows, Linux

Data export as TXT or Excel, report generation and printing

Operating environment

Temperature: 0-40℃; Humidity: 10%-85%

Camera size

85mm x 85mm x 112mm

Tucsen Photonics Co., Ltd.
www.tucsen.com
Tel: +86-591-28055080 E-mail: support@tucsen.com
Add: 5# Wanwushe Smart Industrial Park , No.2 Yangqi Branch Rd,Gaishan Town, Cangshan Area, Fuzhou, Fujian,PRC

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