Methods and apparatus for guidance systems according to various aspects of the present invention operate in conjunction with a projectile including a guidance system having a guidance controller, a detector, and an optical system. The guidance controller controls the path of the projectile according
Methods and apparatus for guidance systems according to various aspects of the present invention operate in conjunction with a projectile including a guidance system having a guidance controller, a detector, and an optical system. The guidance controller controls the path of the projectile according to signals from the detector. The detector generates signals according to an angle of incident energy. The optical system transfers the energy to the detector via a spreader and a condenser. The spreader spreads the incident energy, and the condenser converges the spread energy onto the detector.
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The invention claimed is: 1. A guidance system, comprising: a spreader comprising multiple subregions, wherein each subregion is configured to spatially homogenize incident electromagnetic radiation energy having at least one wavelength in the range of 0.20 microns to 30 microns; a condenser couple
The invention claimed is: 1. A guidance system, comprising: a spreader comprising multiple subregions, wherein each subregion is configured to spatially homogenize incident electromagnetic radiation energy having at least one wavelength in the range of 0.20 microns to 30 microns; a condenser coupled to the spreader; and a detector coupled to the condenser and configured to generate a guidance signal in response to the incident electromagnetic radiation energy, wherein the condenser is configured to converge the spatially homogenized incident electromagnetic radiation energy onto the detector. 2. A guidance system according to claim 1, wherein the spreader comprises a plurality of lenslets. 3. A guidance system according to claim 1, wherein the spreader comprises a diffuser. 4. A guidance system according to claim 1, further comprising a concentrator coupled to the spreader. 5. A guidance system according to claim 4, wherein the concentrator comprises a compound parabolic concentrator. 6. A guidance system according to claim 4, wherein the concentrator comprises an internal reflector defining multiple sections within an interior of the concentrator. 7. A guidance system according to claim 1, wherein the spreader is integrated into the condenser. 8. A guidance system according to claim 1, wherein the condenser is configured to converge the spatially homogenized incident electromagnetic radiation energy onto a curved surface of the detector. 9. A guidance system according to claim 1, wherein the spreader comprises a nonperiodic lens array. 10. The guidance system according to claim 1, wherein the electromagnetic radiation comprises at least one of visible light and infrared radiation. 11. A method for guiding a projectile, comprising: receiving electromagnetic radiation energy having at least one wavelength in the range of 0.20 microns to 30 microns from a target; transmitting the electromagnetic radiation energy through a spreader; condensing the electromagnetic radiation energy from the spreader onto a detector; generating a guidance signal according to the electromagnetic radiation energy on the detector; and guiding the projectile according to the guidance signal. 12. The method of claim 11, wherein the spreader comprises a plurality of lenslets. 13. The method of claim 11, wherein the spreader comprises a diffuser. 14. The method of claim 11, further comprising transmitting the electromagnetic radiation energy through a concentrator. 15. The method of claim 14, wherein the concentrator comprises a compound parabolic concentrator. 16. The method of claim 14, wherein the concentrator comprises an internal reflector defining multiple sections within an interior of the concentrator. 17. The method of claim 11, wherein the spreader is integrated into the condenser. 18. The method of claim 11, wherein condensing the electromagnetic radiation energy comprises converging the electromagnetic radiation energy from the spreader onto a curved surface of the detector. 19. The method of claim 11, wherein the spreader comprises a nonperiodic lens array. 20. The method of claim 11, wherein the electromagnetic radiation comprises at least one of visible light and infrared radiation. 21. A projectile, comprising: a flight control system; and a guidance system coupled to the flight control system, comprising: a spreader comprising multiple subregions, wherein each subregion is configured to spatially homogenize incident electromagnetic radiation energy having at least one wavelength in the range of 0.20 microns to 30 microns; a condenser coupled to the spreader; and a detector coupled to the condenser and configured to generate a guidance signal in response to the incident electromagnetic radiation energy, wherein the condenser is configured to converge the spatially homogenized incident electromagnetic radiation energy onto the detector. 22. A projectile according to claim 21, wherein the spreader comprises a plurality of lenslets. 23. A projectile according to claim 21, wherein the spreader comprises a diffuser. 24. A projectile according to claim 21, wherein the guidance system further comprises a concentrator coupled to the spreader. 25. A projectile according to claim 24, wherein the concentrator comprises a compound parabolic concentrator. 26. A projectile according to claim 24, wherein the concentrator comprises an internal reflector defining multiple sections within an interior of the concentrator. 27. A projectile according to claim 21, wherein the spreader is integrated into the condenser. 28. A projectile according to claim 21, wherein the condenser is configured to converge the spatially homogenized incident electromagnetic radiation energy onto a curved surface of the detector. 29. A projectile according to claim 21, wherein the spreader comprises a nonperiodic lens array. 30. The projectile according to claim 21, wherein the electromagnetic radiation comprises at least one of visible light and infrared radiation.
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이 특허에 인용된 특허 (2)
Amon Max (Maitland FL) Masson Andre E. (Saint-Heand FRX), Command optics.
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