In machine vision applications, the removal of sensor glass, also known as the cover glass, can be beneficial for the following situtions:
1. Improved Light Sensitivity: The cover glass on a sensor can potentially block or distort some of the incoming light. By removing this glass, more light can reach the sensor, improving its sensitivity.
2. Reduced Optical Distortions: The cover glass can introduce optical distortions, especially when high precision is required. Removing the glass can help reduce these distortions.
3. Specialized Filters: Once the cover glass is removed, specialized optical filters can be placed directly onto the sensor. This can be useful in applications where specific wavelengths of light need to be isolated.
4. Increased Resolution: Color sensors often use a Bayer Filter, which requires more pixels to recognize color, thereby reducing the effective resolution. Using a monochrome sensor (which doesn't require a Bayer Filter) with the cover glass removed can yield higher effective resolution.
Remember, while removing the sensor glass can have benefits, it also exposes the sensor to potential physical and environmental harm. Therefore, this procedure should be done carefully and the sensor should be adequately protected afterwards.
