BlueVision Polarized Line Scan Review: Specs & Applications
Updated: 7 days ago
BlueVision's BVC3340LM and BVC3320LM provide separate P- and S-polarization line images through a dual-sensor prism arrangement. Their documented widths are 4096 and 2048 pixels, with model-specific line rates. Price: Request a quote.
The camera should be selected as part of an imaging system rather than evaluated from one headline specification. The useful result is an image that reveals the required feature at the right time, followed by a reliable inspection or measurement decision. This review considers the documented acquisition package, optical implications and practical purchasing scope for Polarized Line Scan.
Quick Verdict
These cameras are worth evaluating when polarization information helps expose a feature that ordinary intensity imaging does not distinguish adequately. The two-channel prism architecture captures P and S images of the same optical scene. The meaningful purchase decision combines polarization contrast, line-scan synchronization and required spatial sampling rather than simply choosing the wider sensor.
Polarized Line Scan at a Glance
Product: BlueVision BVC3340LM / BVC3320LM
Image format: BVC3340LM: 4096 pixels per line; BVC3320LM: 2048; two polarization channels
Acquisition: Electronic Line-Scan Acquisition
Interface: Camera Link Base / Medium configurations
Capture rate: 34.602 kHz line rate for BVC3340LM; 64.308 kHz for BVC3320LM
Architecture: Dual-sensor prism polarization separation
Image channels: Separate P and S polarization images
BVC3340LM pixel size: 7 µm square
BVC3320LM pixel size: 14 µm square
Listed wavelength band: 400–700 nm
Lens mount: M52
Body: 95 × 95 × 95 mm
Weight: 793 g
Triggering: Internal or external synchronization
Price: Request a quote
Polarized Line Scan Technical Specifications
Specification | Value or configuration |
Product | BlueVision BVC3340LM / BVC3320LM |
Image format | BVC3340LM: 4096 pixels per line; BVC3320LM: 2048; two polarization channels |
Acquisition | Electronic Line-Scan Acquisition |
Interface | Camera Link Base / Medium configurations |
Capture rate | 34.602 kHz line rate for BVC3340LM; 64.308 kHz for BVC3320LM |
Architecture | Dual-sensor prism polarization separation |
Image channels | Separate P and S polarization images |
BVC3340LM pixel size | 7 µm square |
BVC3320LM pixel size | 14 µm square |
Listed wavelength band | 400–700 nm |
Lens mount | M52 |
Body | 95 × 95 × 95 mm |
Weight | 793 g |
Triggering | Internal or external synchronization |
Price | Request a quote |
Design and Optical Requirements
The optical arrangement must preserve the polarization information relevant to the material and illumination geometry. Lens selection, lighting direction and object orientation influence the contrast seen in each channel. Evaluate representative transparent, reflective or layered samples under the intended scan conditions. A useful result is repeatable separation of the actual feature from normal surface variation.
Acquisition Speed and Integration
BVC3340LM is documented at a maximum 34.602 kHz line rate, while BVC3320LM is listed at 64.308 kHz. Those are line frequencies, not full area-frame rates. Choose the model from the required cross-track detail and sampling along motion. Match the Camera Link configuration and trigger source to the scan sequence, then test image association and geometry.
Programming and Image Processing
The documented capabilities include P/S polarization separation, dual-channel line-scan output, electronic exposure control, external synchronization. Use those controls to establish a repeatable acquisition recipe for the station. Determine which adjustments are performed in the camera and which belong in the host software. Store the chosen settings with the inspection configuration so an operator or service technician can reproduce the image used during commissioning. A parameter change should be evaluated against both good and faulty samples before it becomes the production default.
Image Data and Host Capacity
Line-scan data must be budgeted from pixels per line, output representation, channel count and line frequency. An area image is assembled over successive lines as the object or scanning arrangement moves. Both polarization channels contribute to the receiving workload. The chosen transport or scan synchronization also determines sampling along the direction of motion; a line-rate specification is not an area-camera frame-rate specification.
Polarized Line Scan Applications and Use Cases
BlueVision identifies inspection of transparent materials, glass surfaces, electronic components and contaminants as application areas. Treat those as evaluation targets. For glass, test whether the channels actually distinguish the required front or back surface feature under realistic material thickness and reflection. For board inspection, include normal variation in component finish and orientation.
Building a Useful Acceptance Trial
Prepare representative parts or scenes that include the smallest required feature, normal production variation and realistic faults. Confirm the field of view and exposure before tuning the inspection. Record wrong accepts, wrong rejects, missing frames and the complete trigger-to-decision timing. A trial should also show what happens when the expected image is absent or unusable. This connects camera selection to the station's actual acceptance requirement rather than relying on a sharp reference picture.
Polarized Line Scan Price and Value
Price: Request a quote. Ask for the complete BVC3340LM / BVC3320LM ordering code and an itemized scope covering the camera, suitable optics, receiving hardware, cables, power and commissioning. Compare quotations for the same image format, acquisition mode and integration scope. The cost of a camera component is different from the cost of a working inspection station. Evaluate any financial return with the plant's actual labor, defect, rework and maintenance data; no universal payback period follows from these specifications.
Comparison and Selection
The 4K BVC3340LM offers more pixels across a line, while the 2K BVC3320LM has a higher listed maximum line rate and larger pixels. The choice depends on the field of view, feature scale and scan speed. An ordinary monochrome line-scan camera can be a simpler architecture if polarization does not add information needed by the inspection.
Ordering, Environment and Lifecycle
Specify the exact model, Camera Link mode, output bit depth and scan synchronization. A polarization-sensitive inspection needs representative sample evaluation before committing to the optical and lighting design. The purchasing scope should include receiving hardware and calibration of the constructed area images.
Pros and Cons
Pros
Separate P/S images from the same optical scene.
2K and 4K line-sensor choices.
Documented external synchronization and Camera Link configurations.
Cons
Polarization benefit depends on the actual material and geometry.
Line-scan integration requires controlled spatial sampling.
Two channels increase acquisition and analysis requirements.
Who Should Buy Polarized Line Scan?
Shortlist Polarized Line Scan when its documented sensor, interface and acquisition mode match the imaging task and the team can demonstrate the complete host pipeline. Use the sample trial to establish whether the relevant features remain distinguishable under the expected lighting, presentation and motion. Before purchase, settle the optical configuration, ordering variants and support requirements. The best choice is the configuration that satisfies the acceptance criteria with a maintainable system architecture.
Polarized Line Scan FAQ
What does the camera separate?
The prism arrangement separates P- and S-polarization components and outputs their images independently.
Which models are covered here?
BVC3340LM is the documented 4K model; BVC3320LM is the documented 2K model.
What are their line rates?
The manufacturer lists 34.602 kHz for BVC3340LM and 64.308 kHz for BVC3320LM.
Are these frame rates?
No. They are line frequencies. An area image is constructed over successive scan lines.
Which interface is used?
Camera Link Base and Medium configurations are documented; specify the exact output mode and receiving hardware.
Which applications merit a sample evaluation?
Transparent or reflective materials, glass surface defects and component inspection can merit testing when polarization provides useful contrast.
What is the price?
Price: Request a quote for the selected camera, optics, receiving hardware and integration.
What should commissioning verify?
Verify polarization-channel association, optical contrast, scan geometry, trigger behavior and the inspection decisions on representative samples.
Price: Request a quote. Final configuration, pricing, availability and support terms depend on the supplier's current quotation.
