Infrared isn't a high-end alternative—it addresses scenarios that visible light simply can't penetrate or distinguish.

Case 027: CCD Chip Positioning

This case is testing...CCD chip positioningA sample can be simply understood as...CCD chip, material/surface properties can be categorized asElectronic components.

The most troublesome point on site is:Target feature is unstable.The effective solution is:Infrared penetrationor color-suppressed illumination, coaxial brightfield illumination, diffuse shadowless illumination.

The target is sometimes obvious, sometimes not; usually, this indicates that the lighting hasn't yet fixed the stable features.

Infrared is often used to penetrate or reduce color interference, making structures that are not obvious under visible light become visible.

The last thing to look at isn't how beautiful the parameters are, but whether the results have become more stable: Once the outlines become clearer, localization no longer relies on unstable surface textures.

Such schemes also have limitations: Coaxial illumination is effective for mirror-like and flat samples, but may produce uneven illumination on strongly curved or highly textured surfaces. For specific wavelength bands, it’s essential to verify that the camera, lens, filter, and material responses are properly matched. Diffuse illumination may obscure subtle height differences, so it’s necessary to compare it with dark-field or directional illumination for validation.

Case 036: Position Detection of DIP Switches

This case is testing...Dipswitch Position DetectionA sample can be simply understood as...PCB board, material/surface properties can be categorized asElectronic components.

The most troublesome point on site is:Target feature is unstable.The effective solution is:Infrared penetration or color-suppression illumination, bar-type side lighting.

The target is sometimes obvious, sometimes not; usually, this indicates that the lighting hasn't yet fixed the stable features.

Infrared is often used to penetrate or reduce color interference, making structures that are not obvious under visible light become visible.

The last thing to look at isn't how beautiful the parameters are, but whether the results have become more stable: high contrast between the background and features.

Such schemes also have limitations: For specific wavelength bands, it’s necessary to confirm whether the camera, lens, filter, and material responses are properly matched.

Case 053: Impurity Testing of Oral Liquids

This case is testing...Oral Liquid Impurity TestingA sample can be simply understood as...Oral liquid, material/surface properties can be categorized asGeneral industrial sample.

The most troublesome point on site is:Insufficient material penetrationThe effective solution is:Infrared penetration or color-suppression lighting,Backlit contour lighting.

When visible light can't penetrate, you should consider the wavelength and penetration capability rather than simply boosting the exposure.

Infrared is often used to penetrate or reduce color interference, making structures that are not obvious under visible light become visible.

The last thing to look at isn't how beautiful the parameters are, but whether the results have become more stable: penetrating the bottle and highlighting impurities.

Such schemes also have limitations: Backlighting is more suitable for contour-based tasks but less appropriate for tasks that require observing surface textures or color differences. For specific wavelength bands, it’s essential to verify that the camera, lens, filter, and material responses are properly matched.