Optical: systems and elements – Single channel simultaneously to or from plural channels
Reexamination Certificate
2005-06-21
2005-06-21
Mai, Huy (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
C359S629000, C359S738000, C033S227000
Reexamination Certificate
active
06909551
ABSTRACT:
A laser level includes a pair of level units arranged side by side and disposed in different oriented directions. Each laser level includes a laser light source adapted to emit a laser beam, a beam splitter adapted to simultaneously split the beam into first and second light beams along perpendicular first and second directions, and a first and a second aspheric-cylindrical lenses respectively arranged in the first and the second directions. The first and the second aspheric-cylindrical lenses have two optical axes respectively extending along the first and second directions.
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Chen Ye
Chen Yue Ye
Fang Zhi Hong
Liu Hua Tang
Asia Optical Co. Inc.
Mai Huy
Troxell Law Office PLLC
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