Monochromator and optical analyzing device using the same

Details Monochromator and optical analyzing device using the same Monochromator and optical analyzing device using the same

1999-04-15

2000-03-07

Evans, F.L.

Optics: measuring and testing

By dispersed light spectroscopy

With synchronized spectrum repetitive scanning

356328, 356334, G01J 318, G01J 342

Patent

active

060347678

ABSTRACT:
A monochromator according to the present invention has an arm 1 rotatably mounted on a rotation shaft 3, and a diffraction grating 6 is fixed to the arm 1. The arm 1 is rotated by a linear motor 9 including a moving part 91 fixed to the arm 1 and a stator part 92 fixed to a base 2. The linear motor 9 is a voice-coil linear motor constructed to allow the arm 1 to rotate reciprocatively around the rotation shaft 3 within a preset angular range. The absolute rotational position of the arm 1 is detected by a rotary encoder 7 including a crossbar 71 fixed to the arm 1 and a encoder block 72 fixed to the base 2. Based on the output signal of the rotary encoder 7, the linear motor 9 is controlled so that the moving part 92 rotates at a fixed angular speed around the rotation axis 3. Thus, the wavelength scanning is carried out at high speed, and sampling of monochromatic light having desired wavelengths is performed accurately.

REFERENCES:
patent: 4732476 (1988-03-01), Barshad
patent: 4969739 (1990-11-01), McGee

Affiliated with

Also associated with

Rating

Monochromator and optical analyzing device using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Monochromator and optical analyzing device using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monochromator and optical analyzing device using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-368186