The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2005
Filed:
May. 11, 2001
Tomoo Fujioka, Kanagawa-ken, JP;
Masamori Endoh, Isehara, JP;
Tomoo Fujioka, Kanagawa-ken, JP;
Masamori Endoh, Isehara, JP;
Other;
Abstract
The present invention provides a slab type gas laser for generating an excellent output laser beam having substantially Gaussian intensity distribution when it is focused by the lens. For this end, a pair of cylindrical electrodesof different diameter are disposed concentrically by way of spacersand laser medium is filled in the gap between the two cylindrical electrodesto define a straight slabDisposed at one end of the straight slabis a ring-shaped trick mirror MAlso disposed at the center of the one end of the straight slabis an output mirror Mto pass a part of the light and to reflect a part of the remaining light. On the other hand, disposed at the other end of the straight slabis a w-axicon mirror MThe relationship between the center offset Xm and the center position Xof the trick mirror is set to Xm≦1.1 X