Tilt sensor using diffraction grating

Details Tilt sensor using diffraction grating Tilt sensor using diffraction grating

2004-03-12

2009-08-18

Feild, Joseph H (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S053190

Reexamination Certificate

active

07577076

ABSTRACT:
A tilt sensor for detecting information related to a tilt of an object to a reference plane is disclosed. The tilt sensor includes a diffraction element disposed that diffracts an incident light at diffraction efficiency depending on the incident angle, and a photo detector that detects a diffraction light diffracted by said diffraction element and outputs an photoelectric signal. Since the diffraction efficiency of the diffraction element changes as the incident angle changes, the intensity of the diffraction light from the diffraction element changes. As a result, the photoelectric signal output from the photo detector contains the information related to the tilt of the object.

REFERENCES:
patent: 5015835 (1991-05-01), Ohuchida et al.
patent: 5065380 (1991-11-01), Yokota
patent: 5101389 (1992-03-01), Ohuchida et al.
patent: 5107359 (1992-04-01), Ohuchida
patent: 5144684 (1992-09-01), Inada et al.
patent: 5231620 (1993-07-01), Ohuchida
patent: 5243583 (1993-09-01), Ohuchida et al.
patent: 5257131 (1993-10-01), Yoshida et al.
patent: 5278817 (1994-01-01), Maeda et al.
patent: 5281802 (1994-01-01), Kitabayashi
patent: 5325348 (1994-06-01), Maeda et al.
patent: 5428588 (1995-06-01), Ohuchida
patent: 5487058 (1996-01-01), Kitabayashi
patent: 5684779 (1997-11-01), Ohuchida et al.
patent: 5956302 (1999-09-01), Maeda et al.
patent: 6184984 (2001-02-01), Lee et al.
patent: 6584060 (2003-06-01), Oohchida
patent: 6738324 (2004-05-01), Saimi et al.
patent: 6876621 (2005-04-01), Ohuchida et al.
patent: 2002/0018432 (2002-02-01), Ohuchida
patent: 2002/0018433 (2002-02-01), Ohuchida
patent: 2002/0041542 (2002-04-01), Sano et al.
patent: 2002/0093902 (2002-07-01), Hirai et al.
patent: 2003/0072047 (2003-04-01), Funato et al.
patent: 2003/0193876 (2003-10-01), Oohchida et al.
patent: 2003/0214898 (2003-11-01), Ogata et al.
patent: 2004/0013076 (2004-01-01), Funato et al.
patent: 57179954 (1982-11-01), None
patent: 61-86826 (1986-06-01), None
patent: 62-22727 (1987-02-01), None
patent: 03-037837 (1991-02-01), None
patent: 02-68734 (1991-03-01), None
patent: 05006561 (1993-01-01), None
patent: 05006562 (1993-01-01), None
patent: 07-270723 (1995-10-01), None
patent: 08320217 (1996-12-01), None
patent: 2002-190125 (2002-07-01), None
patent: 2002-543381 (2002-12-01), None
patent: 2003-043254 (2003-02-01), None
patent: 2003-195023 (2003-07-01), None
patent: 2003-203379 (2003-07-01), None
patent: 2003-257051 (2003-09-01), None
J. Koyama, et al. “Light Wave Electronics”,Corona, Jul. 15, 1993; pp. 117-132.

Affiliated with

Also associated with

Rating

Tilt sensor using diffraction grating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tilt sensor using diffraction grating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tilt sensor using diffraction grating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4106121