Graduated scale marks: image the lettering as well as the ticks
The supplied white-bar capture shows MAX, numbers and scale ticks against a dark curved-looking background. It demonstrates character contrast, while the source does not identify the object or provide a liquid-level measurement.
A clear scale image is not itself a calibrated measurement.
Real camera capture
- Light in sourceLS-2BD14738-RGBW · white
- EvidenceReal application-lab image
- Imaging kitCamera, lens and fixture proposed
- AcceptanceValidate on representative parts
Lighting application-lab catalog capture
What the camera saw
Cropped from the source test sheet; original test annotations are retained. Captures are not generated or enhanced. Drag a comparison slider, or open any image full size.
The challenge
Scale ticks and small characters may reflect differently even though they belong to the same marking.
A bright reflection can hide part of a tick or make a stroke look wider.
How it was solved
The source identifies character detection under a white diffused bar. It does not identify a container or show a measured liquid level, so the trial is scoped to visible markings.
Try separate inspection regions for ticks and characters on your marked part. Use the representative 3D target only to understand the camera, light and fixture arrangement.
Why it works
- 1
A diffused bar can be tried to spread illumination over the required marks instead of relying on a narrow highlight.
- 2
The observed contrast does not establish scale calibration, the accuracy of the printed marks or any level reading.
Lighting application-lab catalog capture
Evidence you can inspect
MAX, several numerals and horizontal ticks are visible as bright marks.
The source calls this character detection and identifies the white 147 mm diffused bar.
The object material and identity, marking dimensions, character-reading results and any physical measurement are unspecified.
From image contrast to a production decision
What to validate on your part
- 01
Define the mark states
Include correct, missing, weak and malformed ticks and characters.
- 02
Vary surface and placement
Test accepted curvature, finish and object tilt across the full marked region.
- 03
Validate the actual decision
Separate print-presence or OCR acceptance from any downstream calibrated measurement.
From the demo to your test bench
Parts in this setup
LightTested
LS-2BD14738-RGBW
147 x 32 mm Diffused bar light (LS-2BD14738-RGBW)
White 147 × 38 × 27 mm diffused bar identified in the source character-detection example. The material, object type and source light angle are not stated.
$109.00
In proposed setup
CameraOur pick
MV-CS050-10GM(NPOE)
Hikrobot MV-CS050-10GM(NPOE) 5 MP GigE area scan camera, IMX264, Gen 2 basic version, Mono, Without PoE
5 MP monochrome global-shutter camera proposed for a contrast trial. Confirm field, sampling, exposure and algorithm on the actual application.
$819.00
In proposed setup
LensOur pick
LS-KF1628M-ML
16mm, F2.8, 1.1", C-mount, Macro lens (52 mm (-0.25X) to 546 mm (-0.03X)) (LS-KF1628M-ML)
Proposed 16 mm C-mount macro lens at its printed 0.1x magnification / 152 mm working-distance pair. The proposed 2448 × 2048 sensor with 3.45 µm pixels gives a derived 84.456 × 70.656 mm field; confirm focus, coverage and residual distortion on the real sample.
$319.00
In proposed setup
Camera test stationOur pick
LS-BT-XZ-G-6-6045
Camera stand with XZ adjustment and glass tray, height 600 mm (LS-BT-XZ-G-6-6045)
600 mm column, 600 × 450 mm breadboard, XZ adjustment, glass tray and two lighting holders as listed. Proposed bench fixture; confirm loads, travel and camera/lens clamps.
$359.00
In proposed setup
"Tested" identifies the part named in the source. "Our pick" is a proposed alternative or supporting part. Confirm colour, optics, controllers, power supplies, cables and mounting before ordering.
The set-up
| Tested light | LS-2BD14738-RGBW, white |
|---|---|
| Source camera / lens | Not specified in the source image caption; proposed parts below |
| Proposed lens point | 0.1x at 152 mm, printed lens pair |
| Derived proposed field | 84.456 × 70.656 mm = sensor dimensions / 0.1x; not a source test field |
| Bar housing (printed) | 147 × 38 × 27 mm |
| Source object | Not identified; the 3D specimen is a representative marked target |
| Mounting (proposed) | LS-BT-XZ-G-6-6045; 600 mm column, 600 × 450 mm base, glass tray and two included lighting holders |
Mount the optics with intent
The station is an optical test bench, with its two lighting holders included in the catalog listing. The 3D column and base follow the published height and footprint. Carriages, clamps and part supports are schematic: confirm camera screw pattern, lens support, light fasteners, permissible load and actual travel before ordering.
Complete the electrical system
Select a controller against the exact light voltage, drive mode and power, then confirm camera data/power/I/O cables and a suitable PC. These are not silently added to the proposed optical kit.
Build this system
Start from this setup, adapt it to your part.
The configurator opens with this study's camera, lens, light and station picked. Swap any part, check fit and price, then buy or ask for a quote.
Camera and available lens CAD are published models. Lens and light envelopes use printed dimensions. The linked station uses its published base size and column height; carriage, brackets, fittings, parts and spacing are illustrative. Confirm load, travel, fasteners and clearances before ordering. Light paths explain the arrangement and do not simulate optical performance. Representative part geometry is illustrative, not reconstructed inspection evidence. The specimen and lighting angle are representative, not dimensions or settings recovered from the source capture.
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Make the next trial specific.
Tell us the part size, smallest defect or tolerance, available working distance, material and line speed. Include what a good part and a reject look like.
About this case study: the photos and camera images come from the application laboratory of the maker of the lighting and optics we sell, imaged on the parts shown; your results depend on your part, camera and set-up. This is an application-lab study, not a LumaSpec customer deployment. Source figures are reported results; proposed components require a fresh trial. The 3D scene illustrates the arrangement and does not simulate imaging performance.