Reflective identifiers and traceability Barcode image visibility

Reflective barcode imaging: compare four lights at a source-reported 35 µs

Four real captures show the same printed barcode/serial region under four coaxial line lights, each labelled 35 µs exposure. Their different brightness and bar contrast make a useful exposure-budget comparison without claiming a successful decode or transport speed.

Preserve the barcode structure before claiming a short-exposure reading result.

此設定中的零件 建立此系統
3D illustration of the inspection setup: Barcode contrast under coaxial line lightsSource 4COXL300 white capture, labelled 35 µs exposure.實際相機拍攝
3D 的配置示意圖 · 在 3D 中探索
  • Source exposure35 µs on all four captures
  • Proposed acquired line2048 pixels
  • Proposed line field (derived)183.8 mm at the printed lens pair
  • Source acquisitionCamera/motion not identified

挑戰

A reflective surface can lose the narrow bars in a weak signal or a bright background. A reliable reader needs preserved modules, margins and contrast at the required exposure.

解決方案

The source names white LS-4COXL300, LS-4COHL300, LS-3COHL300 and LS-4COSL300. Each frame explicitly states 35 µs; its source camera and acquisition mode are not identified.

The proposed system uses a 2048-pixel line-scan camera and a matched M42 lens. It is a new moving-material concept, not evidence that the original test used line-scan acquisition. The illustrative transport is external to the quoted optical kit.

工作原理

  1. 1

    Coaxial line illumination aligns a concentrated bright field with a narrow inspection region. Enough light can support short exposure, but excessive brightness can also weaken the visible print contrast.

  2. 2

    Exposure time alone does not establish a line rate, conveyor speed or decoding performance. The proposed line rate must be calculated from the required field, sampling and motion, then verified on real codes.

Lighting application-lab image sheet

您可以檢查的證據

圖片中可見

The four captures have different background brightness and barcode/serial contrast at the labelled 35 µs exposure.

來源報告的內容

The source states 35 µs for all four named lights but gives no source camera, transport speed, line rate or decoder result.

如何使用此證據

An application-lab lighting demonstration, not a customer deployment or a qualified production inspection. Proposed camera, lens, fixture and scene spacing require a fresh trial. Source observations do not establish a defect-size limit, accuracy guarantee or production false-call rate.

從影像對比到生產決策

您需要驗證的事項

  1. 01

    Check real code quality

    Include the required symbology, module width, quiet zones and acceptable print variation.

  2. 02

    Budget motion and line rate

    Calculate sampling, encoder triggering and permitted pixel travel using the actual transport speed.

  3. 03

    Validate decoding

    Test correct reads, no-reads and substitutions over representative reflective finishes at the chosen light and exposure settings.

From the demo to your test bench

Parts in this setup

建立此系統
同軸線掃描光源, 340 x 56 x 115 mm (LS-4COXL300) 光源已測試 LS-4COXL300 同軸線掃描光源, 340 x 56 x 115 mm (LS-4COXL300) White source light selected as the proposed trial starting point. Printed 340 × 56 × 115 mm envelope;294 × 15 mm viewport and 300 × 24 mm emitting area. It is not claimed to be the best light for every code. $729.00 在所提出的設定中 同軸線掃描光源, 340 x 142.1 x 56 mm (LS-4COHL300) 光源已測試 LS-4COHL300 同軸線掃描光源, 340 x 142.1 x 56 mm (LS-4COHL300) White light in the same 35 µs source comparison. $729.00 分離測試/替代方案 同軸線掃描光源, 300 x 58 x 168.5 mm (LS-3COHL300) 光源已測試 LS-3COHL300 同軸線掃描光源, 300 x 58 x 168.5 mm (LS-3COHL300) White light in the same 35 µs source comparison. $659.00 分離測試/替代方案 同軸線掃描光源, 340 x 157.1 x 58 mm (LS-4COSL300) 光源已測試 LS-4COSL300 同軸線掃描光源, 340 x 157.1 x 58 mm (LS-4COSL300) White light in the same 35 µs source comparison. $729.00 分離測試/替代方案 Hikrobot MV-CL024-91GM 2k 線掃描相機, 單色, GPixel, 7μm 相機推薦選擇 MV-CL024-91GM Hikrobot MV-CL024-91GM 2k 線掃描相機, 單色, GPixel, 7μm GigE monochrome line camera with 2048 × 7 µm pixels and external line triggering. This is a proposed replacement for an unspecified source camera. $1,209.00 在所提出的設定中 25mm, F2.4, 影像尺寸 φ29mm, 建議放大倍率 0.04~0.18X, M42-Mount (LS-AF2524M-M42) 鏡頭推薦選擇 LS-AF2524M-M42 25mm, F2.4, 影像尺寸 φ29mm, 建議放大倍率 0.04~0.18X, M42-Mount (LS-AF2524M-M42) 25 mm, 29 mm image circle, M42 × 1 and 12 mm flange back. Printed magnification is 0.078x at 300 mm WD. $639.00 在所提出的設定中 相機支架，含 XZ 調整及玻璃托盤，高度 600 mm (LS-BT-XZ-G-6-6045) Camera test station推薦選擇 LS-BT-XZ-G-6-6045 相機支架，含 XZ 調整及玻璃托盤，高度 600 mm (LS-BT-XZ-G-6-6045) 600 mm column, 600 × 450 mm breadboard, glass tray and two lighting holders. Proposed bench fixture; actual load, travel, clamps, mounting fasteners and light clearance must be confirmed. $359.00 在所提出的設定中

"Tested" 標示來源中指定的零件。"Our pick" 是建議的替代或輔助零件。下訂前請確認顏色、光學元件、控制器、電源、電纜和安裝方式。

設定

Source exposure35 µs, as printed on each source capture
Source camera/acquisitionNot identified; no source line rate or speed given
Proposed cameraMV-CL024-91GM · 2048-pixel line scan
Proposed lens/fieldLS-AF2524M-M42 · printed 0.078x at 300 mm WD; derived 183.8 mm line field
Mounting (proposed)LS-BT-XZ-G-6-6045 · test station; external transport must be specified

有目的地安裝光學元件

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.

完成電氣系統

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.

建立此系統 詢價建議的設定 探索 3D 設定

Camera and available lens CAD are published models. The light drawing gives the 340 × 56 × 115 mm body and 294 × 15 mm viewing port. The off-centre port, rotated housing and clear acquired line are shown; internal source and 45-degree optics are schematic. The acquired line is not a full area-camera frame. Part shape, unencoded 3D bars, transport, brackets and spacing are illustrative; no source conveyor or actual barcode payload is reproduced. Confirm optical/mechanical clearance, light drive and trigger timing. Light paths are not an optical simulation.

Packaging, labels and print

Related case studies

所有 packaging, labels and print 研究
Oblique line-light capture from the same test; the local marked structure is more visible. Packaging, labels and print Foils and reflective packaging · Surface-shape visibility Indentation marks on aluminium film Make a surface change visible before deciding whether it exceeds the specification.Proposed light housing (spec)340 × 48 × 75 mm探索研究 Source backlit bottle-bottom capture: two dark regions are visible within the brighter base. Packaging, labels and print Packaging and containers · Foreign matter inspection Foreign matter in a bottle bottom Build the clean-bottle variation into the test before setting a dark-spot threshold.MethodTransmitted white backlight探索研究 Source white flat-coaxial capture: a lighter surface region is visible on the right of the yellow circular face. Packaging, labels and print Packaging components · Colour appearance inspection Colour appearance on a bottle cap Control the colour recipe before turning a lighter patch into a reject decision.Light in sourceLS-FCS50 · white探索研究

讓下一次試驗更具體。

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