Optical system for a spectrophotometer

Details Optical system for a spectrophotometer Optical system for a spectrophotometer

1982-02-18

1984-10-23

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

350172, G01J 308, G01J 342

Patent

active

044785135

ABSTRACT:
This invention relates to an optical system which will enable easy use in the field. Known systems either require sample and reference targets to be imaged within the same telescope field or do not enable accurate identification of the measuring field in a view finder.
The present invention overcomes this problem by providing a system having a first branch (10, 12) and a second branch (14) which receive light from a sample and reference target respectively. A shutter 22 sequentially allows light from the two branches to pass to a mirror 20 having a slit 30, reflective portions 32 and transparent portions 34. Light from the first branch passes through portions 30 and 34 to a detecting branch (42, 46, 50-56) and some light is reflected through a lens 16 to eye piece 19. Similarly some light from the second branch passes through mirror 30 and 34 to eye piece 19 and some light is reflected to the detecting branch. Accordingly the measuring field can be accurately identified by looking through the eye piece 19 while at the same time light is directed to the detecting branch for analysis.

REFERENCES:
patent: 3749494 (1973-07-01), Hodges
patent: 4168910 (1979-09-01), Barnard
Sid'ko et al., J. Appl. Spectroscopy, vol. 29, No. 5, Nov. 1978, pp. 1412-1416.

Affiliated with

Also associated with

Rating

Optical system for a spectrophotometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical system for a spectrophotometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical system for a spectrophotometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1596237