Optical device for the unambiguous measurement of the roll angle of a projectile
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0255994
(1994-06-08)
|
우선권정보 |
FR-0006833 (1993-06-08) |
발명자
/ 주소 |
- Jano Patrice (Seine Port FRX) Rat Sylvie (Paris FRX)
|
출원인 / 주소 |
- Thomson-CSF (Paris FRX 03)
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
0 |
초록
▼
This optical device has, in the rear of the projectile, a retro-reflector fitted out with a polarizer and, at the projectile firing station, a light source whose beam illuminates the rear of the projectile, and a light flux analyzer deducing the roll angle of the projectile from the direction of pol
This optical device has, in the rear of the projectile, a retro-reflector fitted out with a polarizer and, at the projectile firing station, a light source whose beam illuminates the rear of the projectile, and a light flux analyzer deducing the roll angle of the projectile from the direction of polarization of the light flux reflected by this projectile, wherein the polarizer is a polarizer with refraction index discontinuity positioned on the rear of the projectile, before the retro-reflector, with an angle of inclination between the direction normal to its plane of index variation and the longitudinal axis of the projectile chosen to be greater than the Brewster angle, and wherein the light source is offset laterally with respect to firing axis of the projectile, these two measurements giving rise to a modulation of intensity of the reflected light beam as a function of the roll angle plus or minus 2pp1.
대표청구항
▼
An optical device for the measurement, without ambiguity, of the roll angle of a projectile launched by launching means located in a firing station, said device comprising, in the rear of the projectile, a retroreflector fitted out with a polarizer and, in the firing station, a light source that is
An optical device for the measurement, without ambiguity, of the roll angle of a projectile launched by launching means located in a firing station, said device comprising, in the rear of the projectile, a retroreflector fitted out with a polarizer and, in the firing station, a light source that is offset laterally with respect to the firing axis of the projectile and whose beam illuminates the rear of the projectile, and a light flux analyzer operating on the light flux reflected by the rear of the projectile, wherein said polarizer is a polarizer with refraction index discontinuity positioned on the rear of the projectile, before the retroreflector, with an angle of inclination between the direction normal to its plane of index variation and the longitudinal axis of the projectile chosen to be greater than the Brewster angle in a range of monotonic variation of a transmission coefficient of the polarizer, the lateral offset of the light source with respect to firing axis of the projectile causing the angle of incidence of the light beam on the polarizer to vary around the value of the angle of inclination of the polarizer as a function of the roll angle of the projectile adding to the change in direction of polarization of the light beam returned by the projectile depending on the roll angle plus or minus p2pp
이 특허를 인용한 특허 (9)
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Diaz Guerrero, Carlos Alberto, Aseptic robotic filling system and method.
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Sylvie Fleury FR; Louis Beaulieu FR, Device for the unambiguous measurement of the roll of a projectile and application to the correction of the path of a projectile.
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Rioland Jacques,FRX ; Thibout Paul,FRX ; Jano Patrice,FRX, Device to control the aiming and focusing of laser systems on a target.
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Rioland Jacques,FRX ; Delon Michel,FRX ; Gauthier Fran.cedilla.ois-Hugues,FRX ; Jano Patrice,FRX, Device to measure the alignment of a laser amplification system.
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Rastegar, Jahangir S., Integrated reference source and target designator system for high-precision guidance of guided munitions.
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Romer Rudolf (Kaarst DEX) Wollmann Gerd (Oberhausen DEX) Misoph Helmut (Lauf a.d. Pegnitz DEX), Method and apparatus for flight path correction of projectiles.
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Seidensticker, Jens, Method for correcting the trajectory of a projectile, in particular of a terminal phase-guided projectile, and projectile for carrying out the method.
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Williams, Brett A.; Baker, Brian C.; Turner, Mark A., Non-coherent fresnel direction finding method and apparatus.
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Goldman, Geoffrey H.; Coburn, William O.; Pizzillo, Thomas J., System and method for the measurement of the unambiguous roll angle of a projectile.
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