Hamamatsu PSD Technical Notes
Light point position, triangular ranging and position-sensitive detection principles; PSD hardware performance is not transferred to camera implementation
Verification date: 2026-10-24
View original public information →LSP315 · Sensor calibration and quality diagnosis · Optical measurement and instrument calibration
Reusable modules
Robust regression of noise and background gradient
For light spot positioning software, the light spot shape and relative distribution are used as the observation route, and the errors and failure ratios of different working conditions are planned to be output. The page is for project evaluation and does not mean that the development has been completed or has been accepted on site.
Project Judgment Summary
Product/DeviceSpot positioning software
Measure routeBM · Spot shape and relative distribution
Ability GradingReusable modules
Verification statusThe actual machine/product domain acceptance of this scenario has not been carried out
Scene nature:Similar potential application scenarios for laser spots. The potential application scenario has not yet been developed into a complete product system; the actual machine/product domain acceptance of this scenario has not been carried out. The actual product/product domain acceptance quantity in catalog statistics is 0.
Business tasks and intended output
- target audience
- Spot positioning software: spot shape and relative distribution
- pseudo output
- Error and failure ratio according to working conditions
- Applicable conditions
- Synthetic results and real shooting results are recorded separately.
- priority
- General extension. Verification needs to be completed according to the listed optical conditions, calibration and samples.
Imaging input and algorithm routing
Imaging and device conditions
Linear response imaging, fixed attenuation and background acquisition avoid saturation and ROI truncation. Standard motion stage, radiometric reference and controlled reflectance/background conditions
BM · Spot shape and relative distribution
Linear response imaging, fixed attenuation and background acquisition to avoid saturation and ROI truncation
- A101Adaptive threshold laser spot grayscale centroid
- A105Laser spot second moment and main axis diameter
- A106Laser spot surrounding energy diameter
- A107Laser spot quality and usability diagnostics
Existing algorithmic evidence:A101–A112 only complete analytical synthesis spot and controlled geometry verification; see laser_spot_benchmark.json
Current capabilities and capabilities to be supplemented
Reusable modules
Existing modules can be used as hosts
Existing light point positioning, quality diagnosis or statistical modules can be used as the main calculation basis; ROI, calibration, threshold and interface verification still need to be completed by device.
Gaps in this scenario:Pixel scale, background subtraction and dynamic range verification required; grayscale integration is not watts or joules. The synthetic results and the real shooting results are recorded separately. The output is measurement evidence and failure boundaries, and the calibration certificate requires complete procedures.
Route-level gaps:Pixel scale, background subtraction and dynamic range verification required; grayscale integration not watts or joules
"Reusable modules" only describe the relative development volume and do not constitute a commitment to accuracy, tempo, stability or delivery time.
Verification methods and acceptance prerequisites
Verify center, width and cutoff separately against a stand-alone beam analyzer or known spot pattern. Retain original frames, reference values and independent working conditions
| Acceptance items | Evidence required for project confirmation | Current status |
|---|---|---|
| Inputs and samples | Real device original frames, normal/abnormal samples, exposure and light path conditions, sample grouping and set aside | Not provided, waiting for project input |
| Magnitude and Error | Independent reference value, calibration record, error statistical caliber and mutual confirmation threshold | Not verified |
| Exceptions and boundaries | Anticipated handling of missed detections, false detections, overexposure, occlusion, reflection, out-of-view and communication abnormalities | To be defined |
| System integration | Interface, time synchronization, deployment platform, tempo, log, version and continuous running record | Not integrated |
Evidence sources and citation boundaries
The source supports measurement principles or similar applications; the module combination, device and acceptance method in this scenario are engineering derivation, and product verification has not been completed.
Micro-Epsilon Laser Triangulation Principle
Transmitting, receiving imaging and distance measurement after calibration
Verification date: 2026-10-24
View original public information →Research on Speckle Uncertainty of Laser Triangulation
Effect of speckle on position and distance uncertainty
Verification date: 2026-10-24
View original public information →Source usage scope:The public information is used to support the measurement principle or the existence of similar applications, and does not prove that this scenario has been developed, deployed or accepted by Jishi Technology.
Project consultation
xuzhiyang0928@gmail.com
Define the Development Scope with Samples and Device Requirements
Robust regression of noise and background gradient
Please describe the task object, original picture or video, target indicators, device platform, interface and sample situation.
Phone: 13910119357xuzhiyang0928@gmail.com