ClearVu Vision Alignment is a programmable zoom and focus lens available on all MAX Series and DS Series platforms. ClearVu Vision allows the system to align on features that are otherwise too small for use as the basis for accurate alignment.
Additionally, for products on which multiple surfaces will be dispensed, vision alignment ensures accurate alignment rather than setting the focus of a fixed lens in the middle ground and never obtaining a crisp image. ClearVu Vision simplifies the complex setup requirements of sub-miniature substrates, variably-sized components, and multi-level assemblies for a variety of production environments.
ClearVu Vision allows the operator to zoom in on miniature features that are 0.010" (0.250 mm) square or smaller, thereby vastly improving alignment accuracy prior to commencement of the dispense program. It also features a unique multi-level, programmable focus that allows the system to use alignment features on various levels of a product.
ClearVu Vision is also compatible with the optional FullView Illumination system that couples an on-axis and low-angle dark field illumination system.
Depth of Field at Zoom Levels
|Zoom Level||Depth of Field|
Field of View at Zoom Levels
|Zoom Level||Field of View Area
at 57 mm (2.25")
|0%||12.0 X 9.1||0.472 X 0.358||0.018||0.0007|
|25%||8.9 x 6.6||0.350 x 0.260||0.014||0.0005|
|50%||3.4 x 2.6||0.134 x 0.102||0.005||0.0002|
|75%||2.3 x 1.7||0.090 x 0.065||0.003||0.0001|
|100%||1.0 x 0.8||0.040 x 0.031||0.002||0.0001|
The 3 images below are ClearVu Vision at 0%, 50% and 100% magnification. Substrate is 0.2 mm diameter at a 0.4 mm spacing (0.008" at 0.0157" spacing).
The 2x Extender is an option to add to the standard lens. It increases the magnification of a standard lens by 2x for fiducial alignment and programming on products with small features. NOTE: 2x Extender is not compatible with ClearVu Vision.
The 2 images below are the same substrate as shown above with a 2x extender and standard lens on the camera.
The High Depth of Field Lens is a Telecentric type lens that increases the depth of field of the camera. Substrates that have different surface levels remain in focus and do not require the operator to make manual focus adjustments. The Telecentric lens offers a crisp, non-distorted image which enhances feature alignment. This add-on option increases the reliability of fiducial and feature findings.