Title:
【発明の名称】光ビームのための高速シャッタ機構
Document Type and Number:
Japanese Patent JP3014755
Kind Code:
B2
Abstract:
A high speed beam shutter having a flat, flexible, reflective ferromagnetic blade oriented with a lengthwise direction of the blade at approximately a right angle to the beam path and tilted up in the widthwise direction so as to be oriented at approximately 45 DEG to the beam path to reflect the beam downward to a light trap. The blade intersects the light path in either its straight or flexed position, but not both, and is flexed by means of an electromagnet. The electromagnet has an elongated core with J-shaped cross-section with the J-arm and J-hook ends defining magnetic poles. The blade, electromagnet and light trap may be housed in a case with side apertures defining the beam path. Both conductive and water cooling of the blade with a beam stop, and cooling of the light trap and electromagnet may be provided. A two blade, two electromagnet embodiment is described.
Inventors:
Woodruff, David Sea
Application Number:
JP50834991A
Publication Date:
February 28, 2000
Filing Date:
April 11, 1991
Export Citation:
Assignee:
NM Laser Products Incorporated
International Classes:
G02B5/00; G02B26/02; (IPC1-7): G02B26/02
Domestic Patent References:
| JP5955704U |
Other References:
【文献】米国特許3724930(US,A)
【文献】米国特許4799767(US,A)
【文献】米国特許4082435(US,A)
【文献】米国特許4799767(US,A)
【文献】米国特許4082435(US,A)
Attorney, Agent or Firm:
Hisami Fukami (4 outside)