OPTICAL WINDOW AND METHOD OF MANUFACTURING THE SAME

摘要

An optical window which has an excellent transmission characteristic over a wide range from the infrared region to the vacuum ultraviolet region, can be attached to an ultra-high vacuum apparatus, and has excellent properties enough to withstand baking. A method of manufacturing the optical window comprising the steps of forming an optical window which is made of at least diamond as a window material, a flange for a vacuum apparatus, a joint frame for joining the diamond to the flange, and a joining material of specified properties for joining the joint frame to the diamond, and a diamond plate, fitting the joint frame to the flange, and fitting the diamond plate to the joint frame through the joining material. The effect is further enhanced by suitably specifying the shape, material and so forth of the joint frame.