Testing requirements

Inspection completed the outline of the glass bottle, glass bottle shape size and shape of defects.

The difficulty of the Project

Ordinary lens, because of the light Angle Angle is big, plus the glass itself is reflective, pervious to light objects, so gather the like the interference of stray light serious influence to the effect of the silhouette of the object extraction, affected by the external environment of light, is each shot will produce the new change, so we can't test.

The solution

Use BT series double telecentric lens with BT series of parallel light source.

Application advantages

High heart, heart is far less than 0.1%, which is the core of the double telecentric lens, can completely avoid the incident light Angle is big light interference problems caused by the outside world.

The depth of field is big, can be one-time perfect focus of different distance of the surface of the parts, average depth of field to ten times the normal lens.

With high parallelism do backlight source of light, you can completely ignore the environment influence factors of light, and avoid the barriers that general lens using under extreme ambient conditions.

Application development

For transparent objects, such as glass、thin film material objects. Such objects affected by ambient light so can not extract the contour precision, high precision size detection object.

Author：BTOS Editor