Structure Sensor 3 - Technical Specifications
The following is a list of technical specifications for the Structure Sensor 3. Please note that the Sensor 3 is in final stages of verification, and as such, the information is subject to changes. For questions regarding these specifications, please email developers@structure.io.
Contents
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1. Physical Characteristics
a. Dimensions and Weight
| Weight |
130g |
| Height |
29.48mm |
| Width |
29.07mm |
| Min. Length |
107.31 |
| Max Length |
119.46 |
b. Chassis Materials
| Front Plate |
Borosilicate Glass |
| Back Plate |
Anodized Aluminum |
| Width |
Anodized Aluminum |
c. Tolerance Specifications
| Operating Temperature |
0 to 35c |
| Storage Temperature |
0 to 50c |
| Reliability |
Product continues to meet all specs, except accuracy, after 10 drops (6 faces, 4 edges, 1 corner) from 1m height in concrete floor, in standard packaging. |
| Warranty |
1 Year Combined Hardware Warranty |
| Laser Safety |
Meet Class 1 Laser classification requirements, according to IEC 6085 |
| Indoor Lighting |
tolerates indirects sunlight |
| Outdoor Lighting |
not under direct sunlight |
| Ingress Protection Rating |
IP65 compliant but not certified - sufficient to survive sterilization and use in an operating room |
2. Internal Components
a. IR Projector
| Laser Type |
Type 1 |
| Wavelength |
940 nm |
b. Cameras
| Type |
IR |
| Number |
2 |
| Field of View |
51.8 deg (Horizontal) x 59.9 deg (Vertical) 74.3 deg (Diagonal)* |
| Shutter Type |
Global |
| Minimum Range |
20 cm |
| Maximum Range |
5 meters |
* Final Field of View dimensions are being verified.
c. Battery
| Type |
Lithium Ion |
| Capacity |
6.5 Wh |
| Maximum Battery Life |
3 Hours |
a. Sensor Resolution Settings
| Name |
Width* |
Height* |
Frame Rate (Single/Double) |
Data Format |
| Full Res |
1080 |
1280 |
8/15 |
RAW 10 |
| Full Res 30 FPS |
1080 |
1280 |
15/30 |
RAW 8 |
* Resolutions in this context refer to IR images.
b. Sensor Presets
Note: Most presets use Auto Exposure, a feature in development, and gain control, a feature being refined. Until these features are completed, Preset performance may vary. Always test all presets thoroughly when developing.
| Preset name |
Resolution |
FPS |
Gain |
Laser power |
Disparity offset |
Exposure |
| Body (default) |
752x940 |
30 |
2x |
Normal |
83 |
Auto |
| Body Detailed |
1040x1200 |
15 |
2x |
Normal |
83 |
Auto |
| Close |
752x940 |
30 |
1x |
Normal |
111 |
Auto |
| Medium range |
752x940 |
30 |
4x |
Normal |
0 |
Auto |
| Long range |
752x940 |
30 |
4x |
Fast |
0 |
10ms (max) |
| Ultra Close ** |
520x600 |
50 |
1x |
Normal |
111 |
Auto |
* Resolution in this context refers to depth frame resolutions.
**Not available at launch
c. Laser Projector Exposures For Different Frame Rates
| Laser Mode |
Frame rate (fps) |
Default exposure (ms) |
Max. exposure (ms) |
| Normal |
60 |
2.5 |
8.33 |
| Fast |
60 |
1.5 |
5.0 |
| Off |
30 |
33.33 |
33.33 (only limited by exposure time) |