Optics: measuring and testing – Inspection of flaws or impurities – Bore inspection
Reexamination Certificate
2005-02-08
2005-02-08
Pham, Hoa Q. (Department: 2877)
Optics: measuring and testing
Inspection of flaws or impurities
Bore inspection
C356S237100, C250S201200
Reexamination Certificate
active
06853448
ABSTRACT:
The upper end of an elongate, rigid, mirror supporting arm is releasably secured at its upper end to an orientation ring, which is removably and rotatably mounted on the lower, cylindrically shaped end of the objective lens housing of an optical autofocus measurement system. The arm extends at its lower end beneath the housing and has secured thereon a mirror which is spaced beneath the housing, and lies in a plane that intersects and is inclined relative to the optical axis of the optical system contained in the housing. The mirror faces the surface of an object disposed in an object plane spaced laterally from the optical axis of the lens system, so that the system is focused along a supplemental optical axis which is inclined to, and intersects, the optical axis of the system in the housing. Images of the object in the offset object plane are therefore projected along the supplemental axis and then from the mirror to the optical system along its optical axis. This system enables a method of effecting autofocus measurements of an object placed in a first object plane that is intersected by the system optical axis when the mirror arm is removed from the lens housing, and, which also enables autofocusing of object surfaces in a second object plane when the mirror is attached by the arm to the lens housing.
REFERENCES:
patent: 1292326 (1919-01-01), Jacobson
patent: 3761186 (1973-09-01), Wason
patent: 4279513 (1981-07-01), Tucker
patent: 4440496 (1984-04-01), Milana
patent: 4629425 (1986-12-01), Detsch
patent: 4714327 (1987-12-01), Marshall
patent: 5132837 (1992-07-01), Kitajima
patent: 5253106 (1993-10-01), Hazard
patent: 5253638 (1993-10-01), Tamburrino et al.
patent: 5317387 (1994-05-01), Van Hengel et al.
patent: 5369491 (1994-11-01), Schneider
patent: 5389774 (1995-02-01), Gelman et al.
patent: 5668665 (1997-09-01), Choate
patent: 5832107 (1998-11-01), Choate
patent: 6172804 (2001-01-01), Schuck et al.
patent: 6179439 (2001-01-01), Choate
Choate Albert G.
Lenz Karl J.
Pham Hoa Q.
Shlesinger & Fitzsimmons
LandOfFree
Multi-directional mirror device and method for optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-directional mirror device and method for optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-directional mirror device and method for optical... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3471648