METHOD FOR SUPERIMPOSING AND DISPLAYING ELECTRON MICROSCOPE IMAGE AND OPTICAL IMAGE
First Claim
1. An electron microscope including an electron optical lens barrel for scanning an electron beam on an observation specimen;
- and a vacuum specimen chamber holding a specimen holder having the observation specimen placed thereon,the electron microscope characterized byan optical image imaging device held in the vacuum specimen chamber; and
a backscattered electron detector provided on an optical path joining on the observation specimen from the optical image imaging device,the backscattered electron detector having a reflection electron detection surface composed of a mirror surface.
2 Assignments
0 Petitions
Accused Products
Abstract
Firstly, displacement between an electron microscope image and an optical image is minimized; secondly, color information obtained by an optical image device having a digital picture function is added to an electron0 microscope image; and thirdly, a whole structure of equipment is simplified. The main character is that a mirror and backscattered electron detector is used and an electron beam to strike on a specimen and an optical axis from the optical image device coincide with each other. Addition of a function of an optical mirror to a backscattered electron detector permits a whole structure of equipment to be simplified, and a beam axis of an electron microscope and the optical axis of the optical image device to coincide with each other.
22 Citations
6 Claims
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1. An electron microscope including an electron optical lens barrel for scanning an electron beam on an observation specimen;
- and a vacuum specimen chamber holding a specimen holder having the observation specimen placed thereon,
the electron microscope characterized by an optical image imaging device held in the vacuum specimen chamber; and a backscattered electron detector provided on an optical path joining on the observation specimen from the optical image imaging device, the backscattered electron detector having a reflection electron detection surface composed of a mirror surface. - View Dependent Claims (2, 3, 4, 5, 6)
- and a vacuum specimen chamber holding a specimen holder having the observation specimen placed thereon,
Specification