Patent ID: 7110174

Claim:
A relay telescope for high-powered laser systems, comprising: a first relay lens; a second relay lens; a vacuum chamber between the first and second relay lenses, the first and second relay lenses focusing beams at a common focal point within the vacuum chamber; a kinematic mount within the vacuum chamber, adapted to secure beam baffles near the common focal point; and an access port on the vacuum chamber, adapted for insertion and removal of beam baffles and including a baffle adapted to be mounted in said kinematic mount, said baffle comprising a solid member having an optically transparent channel, the optically transparent channel having openings on opposite ends of the solid member,and a waist within the solid member near said telescope focal point, said waist being smaller than said openings, and said channel having sides which taper near said waist at a grazing angle in a range of about 1 to 10 degrees.