Battery end wraps: separate the rim from reflective metal

A low-angle ring makes the end-wrap region of a cylindrical cell stand out while suppressing much of the metal reflection. The supplied image is evidence for an appearance trial, not proof of battery safety or electrical condition.

A useful packaging image supports a defined appearance decision.

3D illustration of the inspection setup: Cylindrical battery-end wrap under a ring lightSource white-ring capture: a bright annular wrap/rim region surrounds a darker centre.Real camera capture
3D illustration of the arrangement
  • Proposed light housing (spec)Ø120 × 40 mm
  • EvidenceReal lighting-lab captures
  • Camera (proposed)2448 × 2048 monochrome
  • Field (derived proposal)33.78 × 28.26 mm

Explore it in 3D

Cylindrical battery-end wrap under a ring light

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. The part geometry is illustrative and is not reconstructed from the camera image. The proposed field is derived from the printed lens magnification and camera pixel dimensions; actual coverage and focus need a bench check. Representative part geometry is illustrative, not reconstructed inspection evidence.

The challenge

The wrap, rim and metal terminal reflect light differently. An exposure that keeps the metal readable may hide the packaging edge.

How it was solved

The source identifies white LS-SDL-0067 and describes low-angle lighting for battery packing inspection.

The proposed camera looks at one cell end on the test station. Production handling, cell electrical tests and safety checks are outside this optical kit.

Why it works

  1. 1

    Low-angle illumination can change the relative brightness of the wrap boundary and the metal centre.

  2. 2

    The real capture shows an irregular bright annulus; the sheet does not classify individual defects or state a reject-size limit.

Lighting application-lab image sheet

Evidence you can inspect

Visible in the images

The captured cell end has a bright perimeter region and a darker centre.

What the source reports

The sheet reports visible packing defects with reduced metal reflection; it gives no labelled defect categories or acceptance performance.

How to use this evidence

A lighting application-lab demonstration. The source supplies no customer deployment, defect-size limit, repeatability study or production false-call data. Proposed camera, lens, field, mounting and spacing are not the original tested system.

From image contrast to a production decision

What to validate on your part

  1. 01

    Define visual rejects

    Use known wrap tears, folded rims and acceptable finish variation with documented decisions.

  2. 02

    Control cell pose

    Check tilt, height and rotation so that rim visibility does not depend on fixture loading.

  3. 03

    Keep appearance separate

    Validate optical results against the actual packaging specification and retain independent electrical and safety tests.

From the demo to your test bench

Parts in this setup

Build this system

"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

Lighting evidenceApplication-lab source captures
Camera and lensProposed catalog components; source camera unspecified
Proposed field (derived)33.78 × 28.26 mm at 0.25x
Lens working distance (spec)150 mm at the listed magnification
Mounting (proposed)LS-MNT-0097 · 600 mm station, glass tray and two 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. The part geometry is illustrative and is not reconstructed from the camera image. The proposed field is derived from the printed lens magnification and camera pixel dimensions; actual coverage and focus need a bench check. Representative part geometry is illustrative, not reconstructed inspection evidence.