Patent ID: 8735815

Claim:
A system for electron pattern imaging comprising: a device for converting electron patterns into visible light provided to receive an electron backscatter diffraction (EBSD) pattern from a sample and convert the EBSD pattern to a corresponding light pattern; a first optical system positioned downstream from the device for converting electron patterns into visible light for focusing the light pattern produced by the device for converting electron patterns into visible light; a camera positioned downstream from the first optical system for obtaining an image of the light pattern; an image intensifier positioned between the device for converting electron patterns into visible light and the camera for amplifying the light pattern produced by the device for converting electron patterns into visible light; and a device positioned within the system for protecting the image intensifier from harmful light, the device selected from the group consisting of: a near infrared (NIR) cut-off filter positioned upstream from the image intensifier for preventing NIR light from reaching the image intensifier, a light sensitive sensor in communication with a controller for detecting when a predetermined level of harmful light has been reached, and a short wavelength photo-cathode material positioned within the system to prevent excitation by NIR light.