Device for synchronous modulation, synchronous light-path switch

Details Device for synchronous modulation, synchronous light-path switch Device for synchronous modulation, synchronous light-path switch

1986-06-18

1988-04-19

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250343, 250351, G02B 2604

Patent

active

047391677

ABSTRACT:
Device for synchronous modulation, synchronous light-path switch-over and control-signal derivation for step-drive controlled modulation and switch-over devices, especially for multibeam spectral analysis equipment and preferably for the infrared region of the spectrum, in which the radiation modulation is effected by a rotating light stop and the light path switch-over between a measuring beam and a reference beam is effected by pivoting mirrors. The device provides for the use of only a single photosensor. The synchronization between the stepping motor for moving the light stop and the stepping motors for moving the mirrors is effected via a counting logic and common clocking. Moreover, set pulses are generated to set the mirrors in defined positions, and control signals are generated for further processing.

REFERENCES:
patent: 3659941 (1972-05-01), Tong
patent: 4491730 (1985-01-01), Pedersen

Affiliated with

Also associated with

Rating

Device for synchronous modulation, synchronous light-path switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for synchronous modulation, synchronous light-path switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for synchronous modulation, synchronous light-path switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2177153