Q1 : Why does this series of cameras use a non-cooled design? What are the advantages？

The SWIRNC series uses a non-cooled design with low power consumption, consuming less than 2.11 W. Compared to cooled cameras, the advantages of the non-cooled design are: Lightweight: measuring only 33 mm × 33 mm × 38 mm and weighing just 70 g. Low power: no TEC cooling power needed, making it perfect for battery-powered portable devices. Plug and play: powered via USB 3.0, no external power required. Fast startup: no need to wait for cooling to reach the target temperature.

Q2 : How to choose between 5μm large-pixel and 3.45μm small-pixel models？

The 5μm models (SWIR051AU-NC / SWIR0503AU-NC) have larger pixels with higher full-well capacity, lower readout noise, and better long-exposure dark current performance. They’re suitable for measuring fruit and vegetable moisture, sorting plastics, laser spots, offline spectroscopy, and low-light detection. Among them, the SWIR0503AU-NC has a higher frame rate, making it ideal for high-speed, small-material production lines, while the SWIR051AU-NC offers medium resolution that balances field of view and detail. The 3.45μm models (SWIR035AU-NC / SWIR033AU-NC) have smaller pixels and ultra-high resolution, allowing for micron-level tiny defect detection. They’re great for spotting tiny scratches on semiconductor wafers, inspecting precision components, checking printed micro-anti-counterfeiting marks, and high-precision quality inspection of large plates. The downside: full-frame frame rates are relatively low, and long-exposure noise is higher than the 5μm models, so they’re better suited for short-exposure precision inspection scenarios.

Q3 : What's the power supply method for this camera? Does it need an external power source？

This camera is powered via a USB 3.0 port, so it doesn’t need an external power supply. It only uses less than 2.11 W, plug and play, making it perfect for portable devices and handheld instruments.

0.33 MP – 5 MP, USB3.0 400-1700nm SWIR Camera

Overview

Specification

Dimensions & Pin

Triggering(I/O Interface)

Lens Guide

Software

Features

FAQ

Feedback

The USB3.0 interface uncooled cameras

The SWIRNC series USB3.0 interface uncooled cameras equipped with Sony IMX990/991/992/993 InGaAs sensors spanning an impressive 400-1700nm VIS-SWIR spectrum. Featuring a lightweight design, these cameras offer resolutions from 0.33 MP and 5 MP and pixel sizes of 5 μm and 3.45 μm (Model-Dependent). These SWIR camera provide low power consumption and a high dynamic range, ensuring stable and reliable short-wave infrared imaging.

Features

The spectral response range covers 400–1700 nm.

0.33-5MP resolution, 5/3.45 μm pixel size

Low power consumption 4.4 W

Global shutter, high-speed acquisition

Bit depth: 8/12 bit

Hardware ROI & external triggering

512MB cache (Model-Dependent)

CE/FCC Cerifcation，Multi-platform SDK

Software

AttosView supports Windows® 7 (64-bit),10 and 11 operating systems. The SDK supports development languages such as C/C++, C #/VB.net, Python, Java, etc, Third-party support including LabVIEW, MATLAB, Micro-Manager, DirectShow, and TWAIN.

Images acquired by the SWIR camera

SWIRNC series USB3.0 interface uncooled cameras deliver exceptional performance in high-speed dynamic detection, laser analysis, and high-speed sorting with a lightweight form. They serve as ideal core components for portable devices and handheld instruments. Widely adopted in machine vision, portable inspection, and scientific research experiments, these cameras provide reliable, high-performance short-wave infrared imaging solutions tailored for diverse industrial and research applications.

Model	SWIR051AU-NC, SWIR0503AU-NC, SWIR035AU-NC, SWIR033AU-NC
Spectral Range	400nm-1700nm
Color Type	Monochrome
ADC	12 Bit / 8 Bit
Image Buffer	512MByte
Gain range	1-15x
Exposure Time Range	15us-60s
Shutter Mode	Global Shutter
Binning	Software2x2, 3×3, 4×4
Data interface	USB3.0
Digital I/O	1 channel of optically isolated input, 1 channel of optically isolated output, 2 channels of non-isolated input/output ports
Data Format	8 Bit / 12 Bit
Optical Filter	400-1800nm (Standard) ; 1030-1800nm (Optional)
CRA	2.35°
Power consumption	<2.11W
Operating Temperature	-20 °C to +60 °C
Storage Temperature	-40 °C to +85 °C
Humidity	20%-80%，no condensation
Size	33mm×33mm×38mm
Weight	70g
Lens mount	C-mount
Software	AttosView / SDK
Operating system	Win32/WinRT/Linux/macOS/Android
Certification	CE,FCC

阿秒科技400-1700nm非制冷USB3.0接口短波红外相机量子效率 QE 特性曲线图

Quantum Efficiency Curve

Optical filter transmission curve

* Blue curve: 400-1800nm standard filter
* Red curve: 1030-1800nm optional filter

400–1700 nm USB interface uncooled camera dimensions and ports

Parameter	Specification
Size	33mm×33mm×38mm
Mount	C mount

Item	Specification
1	USB3.0 port
2	External IO connection port

SWIR035 Series Camera Pin Signal

Table1: USB port, GigE port, CL port refrigerated camera pin signal definitions
	Color	Pin	Signal	Description of the signal
	White	1	GDN	Direct-coupled signal ground
	Red	2	12V	12VDC power input
	Blue	3	OPTO_GND	Opto-isolated signal ground
	Yellow	4	DIR_GPIO0	Direct-coupled General Purpose I/O (Software configurable input/output) (line2)
	Black	5	DIR_GPIO1	Direct-coupled General Purpose I/O (Software configurable input/output) (line3)
	Green	6	OPTO_IN	Opto-isolated input signal (line0)
	Pink	7	OPTO_OUT	Opto-isolated output signal (line1)

I/O electrical characteristics

Opto-isolated input circuit (line0)

Logic 0 input level: 0~2.2VDC (OPTO_IN pin)
Logic 1 input level: 3.3~24VDC (OPTO_IN pin)
Maximum input current:30mA

When the input level is between 2.2V and 3.2V, the circuit operation state is uncertain, please do not let SWIR camera work within this voltage range.

Input rise delay (TDR): 6us

Input fall delay (TDF): 6us

Figure 1：Input logic levels

Opto-isolated output circuit (line1)

The opto-isolated output maximum current is 30mA.

Figure 2: Output logic levels

The electrical characteristics of the opto-isolated output (external voltage 5V, external resistor 1K) are shown in Table 2.

Table 2： Opto-isolated output signal’s electrical characteristics
Parameter name	Parameter notation	Parameter value
Output logic low	VL	742mV
Output logic high	VH	4.134V
Output rise time	TR	4us
Output fall time	TF	1.8us
Output rise delay	TDR	12us
Output fall delay	TDF	2us

The output of the corresponding output current and VL when using different voltages and resistors in externalcircuit are shown in Table 3.

Table 3：Opto-isolated output logic’s low levels parameters
External voltage	External resistor	VL	Output current
3.3V	1KΩ	510mV	2.82mA
5V	1KΩ	742mV	4.31mA
12V	2.4KΩ	795mV	4.68mA
24V	4.7KΩ	850mV	4.97mA

Input and output I/O circuit (line2/line3)

1. Line2/line3 is set as input pin
Logic 0 input level: 0~0.6VDC (DIR_GPIO0/DIR_GPIO1 pins)
Logic 1 input level: 2.0~24VDC (DIR_GPIO0/DIR_GPIO1 pins)
Maximum input current: 25mA
When the input level is between 0.6V and 2.0V, the circuit action state is uncertain, please avoid the input voltage range working in this range.

To prevent damage to the GPIO pins, please connect the pin GND first, and then input voltage to the Line2 pin.
Input rise delay (TDR): 0.02us
Input fall delay (TDF): 0.02us

2. Line2/line3 are set as output pins
The maximum current allowed through this pin is 25mA.
The external pull-up voltage is 5V, the pull-up resistor is 1KΩ, and the GPIO is configured to output the logic level and electrical characteristics as shown in Figure 4.

Figure 3: Input logic levels

Figure 4: Output logic levels

When the ambient temperature is 25 degrees Celsius, the relationship between the external voltage, resistance and low-level voltage output is shown in Table 4.

Table 4：Non-isolated output Logic’s low level parameters
External voltage	External resistor	VL(GPIO)
3.3V	1KΩ	0.11V
5V	1KΩ	0.167V
12V	2.4KΩ	0.184V
24V	4.7KΩ	0.385V

Table 5: Non-isolated output electrical characteristics
Parameter name	Parameter notation	Parameter value
Output rise time	TR	0.08us
output fall time	TF	0.02us
Output rise delay	TDR	0.1us
Output fall delay	TDF	0.04u

IMX990/IMX991/IMX992/IMX993 InGaAs sensors imaging and the lenses are shown in the following figure

Imx990 Relationship Between Image Circle And Pixel Area

Imx991 Relationship Between Image Circle And Pixel Area

Imx992 Relationship Between Image Circle And Pixel Area

Imx993 Relationship Between Image Circle And Pixel Area

The following figure recommends the characteristics of CRA when the image height is from 0-100%.

SWIR051AU-NC

SWIR0503AU-NC

SWIR035AU-NC

SWIR033AU-NC

IMX990 / IMX991 CRA(Chief Ray Angle) characteristics

CRA（Chief Ray Angle）Characteristics
IMX990			IMX991
Image height		CRA (deg)	lmage height		CRA (deg)
(%)	(mm)		(%)	(mm)
0	0	0	0	0	0
5	0.2	0.12	5	0.1	0.06
10	0.41	0.23	10	0.2	0.12
15	0.61	0.35	15	0.31	0.18
20	0.82	0.47	20	0.41	0.23
25	1.02	0.59	25	0.51	0.29
30	1.23	0.7	30	0.61	0.35
35	1.43	0.82	35	0.72	0.41
40	1.64	0.94	40	0.82	0.47
45	1.84	1.06	45	0.92	0.53
50	2.05	1.17	50	1.02	0.59
55	2.25	1.29	55	1.13	0.65
60	2.46	1.41	60	1.23	0.7
65	2.66	1.53	65	1.33	0.76
70	2.87	1.64	70	1.43	0.82
75	3.07	1.76	75	1.54	0.88
80	3.28	1.88	80	1.64	0.94
85	3.48	1.99	85	1.74	1
90	3.69	2.11	90	1.84	1.06
95	3.89	2.23	95	1.95	1.12
100	4.1	2.35	100	2.05	1.17

IMX992 / IMX993 CRA Shading Characteristics

Imx992/993 Shading Characteristics At Horizontal Angle

Imx992/993 Shading Characteristics At Vertical Angle

AttosView

AttosView support all Attostek UV-VIS and SWIR cameras, it is a professional software that integrates camera control, image acquisition and processing, image browsing and analysis functions.

AttosView has the following characteristics:

x86: XP SP3 and above; CPU support SSE2 and above
x64: Win7 and above

Introduction to SDK

ascamsdk support a variety of APIs, including: Native C/C++,.NET/C#/VB.NET, Python, Java, DirectShow, Twain, LabView, Matlab, etc. Compared with other APIs, Native C/C++ API as a low-level API is characterized by using pure C/C++ development without relying on other runtime libraries. The interface is simple and the control is flexible.

Supported SDK platforms include: Win32 and WinRT, macOS, Linux, Android.

The supported versions for Win32 are as follows:

x86: XP SP3 and above; the CPU needs to support at least the SSE2 instruction set.
x64: Win7 and above.
arm: Win10 and above.
arm64: Win10 and above.

Third-party interface software

AttosTek provides extensive third-party software support for its UV-Vis cameras and SWIR cameras, facilitating rapid integration and use in various development environments. This includes SDK and demo programs for LabVIEW and MATLAB, as well as DirectShow drivers, Micromanager, and TWAIN SDK drivers. These features enable seamless compatibility with mainstream development environments and third-party software, greatly simplifying the workflow for system integration and secondary development.

AttosView

Support all Attostek UV-VIS and SWIR cameras.

Click the button below to download the AttosView software.

Download

SDK

Support a variety of APIs.

Click the button below to download the SDK.

Download

Third-Party Software

DirectShow Driver:

Download

Micromanager Driver:

Download

TWAIN SDK Driver:

Download

Recommended PC Configuration

AttosView Recommended System Requirements
Operating System	Microsoft® Windows® XP / Vista / 7 / 8 /10 /11(32 & 64 bit), Mac OSX, Linux
Processor (CPU)	≥3.0 GHz Intel Core i5 or Higher
Memory (RAM)	≥8 GB
Hard Drive	NVMe Solid State Drive (SSD)
Graphics Card	Dedicated Adapter with ≥256 MB RAM
Motherboard	USB 3.0 (-USB) Cameras: Integrated Intel USB 3.0 Controller or One Unused One Unused PCle3.0*16 Slot
Connectivity	Internet Connectivity for Driver Installation

User interface design

The image below shows the interface of the Attosview software. For more detailed information, please download the product manual.

Function	Function description
Operating mode	Operating mode: video mode or trigger mode Trigger mode: soft trigger mode or external trigger mode
Denoise	The camera hardware incorporates denoise
Automatic exposure	Automatic exposure or manual exposure function
Gain	HG, MG, LG 3 gain modes
Frame rate	Supports precise frame rate control
ROI	Supports single-zone ROI with a maximum frame rate of 8000fps after ROI
Flip	Supports Vertical/horizontal flip
Custom dark field correction	The hardware supports up to 12 groups of user-defined dark field correction image functions
Timestamp function	Timestamps can be turned on or off. After the timestamp function is enabled, the low 8bits of 1-8 pixels, 9-16 pixels, and 17-24 pixels will be modified to: 0-7: frame number; 8-15: Frame time; 16-23: trigger signal count
Firmware update	Supports firmware online update
Pipette function	Supports the display of the gray value of the mouse pixel position
Histogram display	Supports histogram display and statistics
Plane line function	Supports the function of viewing surface data
Regional gray statistics	Support the average gray statistics function of user-defined areas
Cooling system	1) The cooling system of the camera uses a built-in TEC cooling chip for the sensor, with external heat dissipation structure and fan auxiliary heat dissipation, the working temperature can be adjusted to a specific value, the effective cooling temperature can be lower than the ambient temperature of 40℃, and the high-efficiency cooling system ensures extremely low dark current level; 2) The TEC system adopts PID algorithm control, so that TEC can accurately adjust the sensor to the target temperature, and the temperature deviation is 0.3℃;

Q1 : Why does this series of cameras use a non-cooled design? What are the advantages？
The SWIRNC series uses a non-cooled design with low power consumption, consuming less than 2.11 W. Compared to cooled cameras, the advantages of the non-cooled design are:

Lightweight: measuring only 33 mm × 33 mm × 38 mm and weighing just 70 g.

Low power: no TEC cooling power needed, making it perfect for battery-powered portable devices.

Plug and play: powered via USB 3.0, no external power required.

Fast startup: no need to wait for cooling to reach the target temperature.
Q2 : How to choose between 5μm large-pixel and 3.45μm small-pixel models？
The 5μm models (SWIR051AU-NC / SWIR0503AU-NC) have larger pixels with higher full-well capacity, lower readout noise, and better long-exposure dark current performance. They’re suitable for measuring fruit and vegetable moisture, sorting plastics, laser spots, offline spectroscopy, and low-light detection. Among them, the SWIR0503AU-NC has a higher frame rate, making it ideal for high-speed, small-material production lines, while the SWIR051AU-NC offers medium resolution that balances field of view and detail.

The 3.45μm models (SWIR035AU-NC / SWIR033AU-NC) have smaller pixels and ultra-high resolution, allowing for micron-level tiny defect detection. They’re great for spotting tiny scratches on semiconductor wafers, inspecting precision components, checking printed micro-anti-counterfeiting marks, and high-precision quality inspection of large plates. The downside: full-frame frame rates are relatively low, and long-exposure noise is higher than the 5μm models, so they’re better suited for short-exposure precision inspection scenarios.
Q3 : What's the power supply method for this camera? Does it need an external power source？
This camera is powered via a USB 3.0 port, so it doesn’t need an external power supply. It only uses less than 2.11 W, plug and play, making it perfect for portable devices and handheld instruments.

SWIRNC Series USB Interface Uncooled SWIR Camera with InGaAs Sensor

Model	SWIR051AU-NC	SWIR0503AU-NC	SWIR035AU-NC	SWIR033AU-NC
Sensor Model	Sony IMX990 InGaAs	Sony IMX991 InGaAs	Sony IMX992 InGaAs	Sony IMX993 InGaAs
Pixel Size	5.0 µm x 5.0 µm		3.45 µm x 3.45 µm
Sensor Size	1/2″	1/1.4″		1/1.8″
Conversion Gain	42.8e/ADU	43e/ADU	10.3e/ADU (HCG), 17.29e/ADU (LCG)	10.3e/ADU (HCG), 17.29e/ADU (LCG)
Dynamic Range	58.7dB	59.6db	51.36dB (HCG), 51.47dB (LCG)	51.36dB (HCG), 51.47dB (LCG)
Readout Noise	197.6e	178.8e	111.88e (HCG) , 186.61e (LCG)	111.88e (HCG) , 186.61e (LCG)
Full Well	175.4ke	176.2ke	41.39ke (HCG), 69.92ke (LCG)	41.39ke (HCG), 69.92ke (LCG)
Maximum SNR	52.4dB	52.5dB	46.17dB (HCG), 48.45dB (LCG)	46.17dB (HCG), 48.45dB (LCG)
FPS/Resolution	8 Bit:223fps@1280 x 1024、428fps@640 x 512 12 Bit:118.7fps@1280 x 1024、227.7fps@640 x 512	8 Bit:428.1fps@640 x 512、807fps@320 x 256 12 Bit:227.7fps@640 x 512、429.3fps@320 x 256	8 Bit:61.9fps@2560×2048、135.7fps@1280×1024 12 Bit:35.5fps@2560×2048、135.7fps@1280×1024	8 Bit:93fps@2048×1536、176fps@1024×768 12 Bit:57fps@2048×1536、176fps@1024×768

Item

Docs

Available

Price

Qty

SWIR051AU-NC

1.3 MP Uncooled InGaAs SWIR Camera, 5 µm Pixels, USB 3.0 Interface

2 Weeks

$10,000.00

SWIR0503AU-NC

0.33 MP Uncooled InGaAs SWIR Camera, 5 µm Pixels, USB 3.0 Interface

2 Weeks

$6,620.00

SWIR035AU-NC

5 MP Uncooled InGaAs SWIR Camera, 3.45 µm Pixels, USB 3.0 Interface

2 Weeks

$19,000.00

SWIR033AU-NC

3 MP Uncooled InGaAs SWIR Camera, 3.45 µm Pixels, USB 3.0 Interface

2 Weeks

$18,000.00

Optional accessories – lenses

To meet the diverse application demands of short-wave infrared (SWIR) imaging, Attostek offer a series of high-performance SWIR lenses. This lineup covers focal lengths from 6mm to 100mm and features a wide aperture range of F1.4 to F2.0 as standard, ensuring high signal-to-noise ratio and superior image quality even in low-light conditions. Users can flexibly select different models based on field of view, working distance, and resolution requirements, providing high sensitivity and versatile scene adaptability for SWIR cameras in applications such as security surveillance, industrial inspection, and scientific research.

Item

Docs

Available

Price

Qty