Claims
- 1. A spectral analyzer and direction indicator system for receiving collimated or essentially collimated incident radiation comprising:
- first optical means responsive to the collimated or essentially collimated incident radiation for providing non-dispersed optical information indicative of incidence direction and for providing spectrally dispersed optical information;
- first detector means responsive to said non-dispersed optical information and said dispersed optical information from said first optical means for providing detected information for identifying as to the collimated or essentially collimated incident radiation a first angular incidence direction and the spectral content;
- second optical means responsive to the collimated or essentially collimated incident radiation for providing non-dispersed optical information indicative of incidence direction of the incident radiation and for providing spectrally dispersed optical information; and
- second detector means responsive to said non-dispersed optical information and said dispersed optical information from said second optical means for providing detected information for identifying as to the collimated or essentially collimated incident radiation a second angular incidence direction and the spectral content.
- 2. The spectral analyzer and direction indicator of claim 1 wherein said first and second optical means each comprises a reflector having a ruled planar section and a smooth non-ruled planar section tilted relative to said ruled planar section.
- 3. The spectral analyzer and direction indicator of claim 2 wherein said smooth non-ruled planar section is tilted about a first axis parallel to the rulings on said ruled planar section.
- 4. The spectral analyzer and direction indicator of claim 3 wherein said smooth non-ruled planar section is further tilted about a second axis perpendicular to said first axis.
- 5. The spectral analyzer and direction indicator of claim 2 wherein the relative effective areas of the ruled and non-ruled sections of said first and second optical means are different from each other so as to intercept unequal fractions of the total incident radiation.
- 6. The spectral analyzer and direction indicator of claim 2 wherein the relative effective areas of the ruled and non-ruled sections of said first and second optical means are inversely proportional to their reflective efficiencies.
- 7. The spectral analyzer and direction indicator of claim 1 wherein said first optical means and said first detector means comprise a first optical channel, and wherein said second optical means and said second detector means comprise a second optical channel, said first and second optical channels being at right angles.
- 8. A spectral analyzer and direction indicator for receiving collimated or essentially collimated incident radiation comprising:
- two nominally identical independent optical channels having respective axes which are at right angles;
- each of said channels having (i) optical means responsive to the collimated or essentially collimated incident radiation for providing radiation containing dispersed optical information and non-dispersed optical information, (ii) analytical optical means for focusing the radiation containing dispersed and non-dispersed optical information, and (iii) detection means responsive to the focused radiation for providing detected information;
- said detected information from each channel independently yielding as to the collimated or essentially collimated incident radiation the spectral content and an incidence direction associated with such channel.
- 9. The spectral analyzer and direction indicator of claim 8 wherein said optical means comprises a reflector having a ruled planar section and a smooth non-ruled planar section tilted relative to said ruled planar section.
- 10. The spectral analyzer and direction indicator of claim 9 wherein the relative effective areas of the ruled and non-ruled sections of said first and second optical means are different from each other so as to intercept unequal fractions of the total incident radiation.
- 11. The spectral analyzer and direction indicator of claim 9 wherein the relative effective areas of the ruled and non-ruled sections are inversely proportional to their reflective efficiencies.
- 12. The spectral analyzer and direction indicator of claim 8 wherein said detection means comprises a linear detector array.
Parent Case Info
This is a division of Ser. No. 06/737,114 filed 23 May 1985.
US Referenced Citations (14)
Divisions (1)
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Number |
Date |
Country |
Parent |
737114 |
May 1985 |
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