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Swiss Ranger SR4000
Go to MESA Cameras
Go to 3D cameras

Falcon VGA300HG monochrome camera

The Swiss Ranger 4000 3D, time-of-flight industrial camera provides high-resolution 3D image data in real time.
The device relies on a image sensor technology capable of capturing 3D data sets (known as depth maps) in real time and is built into a single, compact, solid-state housing suited to harsh environments.

At the heart of the camera is an advanced sensor technology employing the time-of-flight distance measurement principle where infrared light from the camera's internal lighting source is reflected by objects in the scene and travels back to the camera where its precise time of arrival is measured independently by each of tens of thousands of sensor pixels. Two measurement ranges are possible up to a distance of 10 metres and the data is then delivered via USB 2.0 or Fast Ethernet to the computer for visualisation and interpretation. Various models are available to be matched to user needs.

Advantages of Mesa's SR4000 time-of-flight camera over other 3D cameras
Mesa's time-of-flight-based measurements have several important advantages compared to other 3D imaging technologies, such as laser triangulation or stereoscopic vision systems:

*** Measurements are not dependent on external reference points or presence of contrast in the surface of measured objects
*** Real time, video frame rate measurements independent of scanning cycles or limitations imposed by computer processing power
*** Scene illumination is provided by the camera, and is not dependent on illumination from external, visible light
*** Larger objects can be measured easily without any increase in camera base length (as with stereo vision).
*** Camera directly delivers depth values for each pixel, without the need of complex calculation algorithms. This results in faster, less computation intensive systems and allows for direct integration of application algorithms onto the DSP of the camera

Models available: (click on links below to view model details)

Standard Field-of-View
43° (h) x 34° (v)
Wide Field-of-View
69° (h) x 56° (v)
Fast Ethernet
Fast Ethernet

Applications include:

Machine Vision: More general machine vision applications require highly stable and reliable sensory systems. The MESA camera, supplies a reliable set of depth data which increases the robustness and flexibility of many surveillance, inspection, and logistics systems. Specific applications in this field include:
** Single-camera-based factory automation via identification of an object's location, volume, and orientation
** Replacement of space-consuming infrared light curtains used to monitor workers in the proximity of dangerous equipment
Robotics: The search for real-time electronic robotic eyes that closely mimic the behaviour of human eyes has been a high priority for some time. The SR400 avoids the shortcomings of alternative solutions such as stereoscopic cameras or laser scanners. One Mesa camera allows a single compact sensor to serve as a highly capable input device in many robotic applications, including:
** Autonomously-guided vehicles with improved obstacle identification and avoidance - for map building, localisaton and path planning.
** Service robots in both industrial and consumer applications.
** Industrial robots in assembly, quality control monitoring, material handling, and automation.
Logistics: For detecting and measuring volumes of freight in a very short time by providing fast data acquisition and a small system size with no need for mechanical scanning devices.

Security / Surveillance: the third dimension delivered by the SR4000 allows for much easier segmentation of images, for example, it allows of determination of presence, location and number of persons or objects in a target zones.
Medical and Biometrics: The ability of the SR400 camera to provide immediate, cost-effective images enables a diverse set of emerging medical and biometric applications such as:
** human-machine interface for geriatric rehabilitation computer games
** clinical use of Time-of-flight for patient-position and patient-movement monitoring to increase effectiveness of therapy (including radio therapy)
** Providing laparoscopic surgeons with a surface dimension to assist in endoscopic surgery procedures, enabling the marriage of the real-time image to previously generated scanned images.

General specifications
Model SR4000
Resolution 176 x 144 pixels
Working Range 0.8 to 8.0 m
Accuracy +/-10 mm (typ.) +/-15 mm (typ.) (depending on model)
Field of view Standard: 43° (h) x 34° (v). Wide: 69° (h) x 56° (v)
Frame rate 50 frames-per-second (camera setting dependent)
Output USB; Ethernet
Type Time-of-flight
Dimensions - USB 65 x 65 x 68 mm excluding connectors
Dimensions - Ethernet 65 x 65 x 76 mm excluding connectors
Weight - USB 470 g
Weight - Ethernet 510 g

Product specifications by model
Standard Field of View Cameras (43° (h) x 34° (v)) and Wide Field of View Cameras (69° (h) x 56° (v))
Product Number
Standard Field of View Cameras (43° (h) x 34° (v))
Wide Field of View Cameras (69° (h) x 56° (v))


Fast Ethernet
Fast Ethernet
Modulation frequency
29/30/31 MHz
14.5/15/15.5 MHz
Frequency selectable, allows multiple cameras to operate simultaneously
Non Ambiguity Range
5.0 m
10.0 m
Ranges are radial distances, not z distances
Calibrated Range
0.8 to 5.0 m
0.8 to 8.0 m
For 15 MHz: values from 8 - 10 m are extrapolated, not calibrated (1)
Absolute Accuracy (3)
+/-10 mm (typ.)
+/-15 mm (typ.)
At 99% target reflectivity, over calibrated range (1), (2)
Drift with temperature (T)
less than or equal to 0.5 mm/°C (max)
less than or equal to 1.5 mm/°C (max.)
For 20°C less than or equal to T less than or equal to 30°C
For 10°C less than or equal to T less than or equal to 50°C
Repeatability (1 σ) of central pixels (2)
Repeatability (1 σ) in Region 1
4 mm (typ.)
7 mm (max.)
6 mm (typ.)
9 mm (max.)
At 99% target reflectivity, 30 FPS, 2 m working distance. (1), (4)
σ ≤ 120% of maximal value for central pixels
Repeatability (1 σ) in Region 2
σ ≤ 200% of maximal value for central pixels
All values are indicated for 30 MHz or 15 MHz respectively. Values at adjacent frequencies (14.5, 15.5 and 29, 31 MHz) will differ slightly
For 11 x 11 central pixels of the camera
Includes drift induced by changing integration
Typical: @ 25°C. Max: over complete temperature range (+10 °C to +50 °C)

SR4000 Datasheet




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