Method of and device for modulating the center point in optical tracking devices

Claim 2

A scanning method for passively operative optical tracking systems, which includes in combination the steps of turning the image of the image field for uniform modulation effected only by rotating a reversion optical system, and deflecting said image in a Cartesian sensing manner ahead of the last image plane.

Claim 3

A scanning method in combination according to claim 1, which includes the step of reducing to a minimum the shading of the focal aperture by providing additional optical elements in the path of the light rays.

Claim 4

A scanning method for passively operative optical tracking systems, which includes in combination the step of maintaining the modulation in the center of the image field whereby increasing signal clarity occurs by rotating a reversion optical system and a rotating polygonal prism for scanning in a Cartesian sensing manner.

Claim 5

A scanning method for passively operative optical tracking systems, which includes in combination the step of maintaining the modulation in the center of the image field whereby increasing signal clarity occurs by rotating a reversion optical system and a rotating polygonal prism for scanning in a Cartesian sensing manner.

Claim 8

A device in combination according to claim 4, in which said scanning optIcal system for sensing in a Cartesian manner is formed by a rotating polygonal prism.

Claim 9

A device in combination according to claim 4, in which the reversion optical system is formed by a pentaprism.

Claim 10

A device in combination according to claim 4, in which the reversion optical system is formed by a rotating pentamirror.

Claim 11

A device in combination according to claim 4, which includes a multielement detector.

Claim 12

A device in combination according to claim 4, which includes a deflecting mirror arranged within the path of the light beams directed thereby, said mirror being provided also with a passage for the aperture.

Claim 13

A cartesian scanning device for passively operative optical tracking systems, which includes in combination: an objective arranged at one end of said device, detector means arranged at the opposite end of said device, a rotating reversion optical system between said objective and said detector means, and a polygonal prism interposed between said reversion optical system and said detector means.

Claim 14

A cartesian scanning device for passively operative optical tracking systems, which includes in combination: an objective arranged at one end of said device, detector means arranged at the opposite end of said device, a rotating reversion optical system between said objective and said detector means, and a polygonal prism interposed between said reversion optical system and said detector means.

Claim 15

A sensing device for passively operative optical tracking systems increasing clarity and modulating uniformity, which includes in combination: an objective, a pentamirror forming a rotating reversion optical system, detector means interposed between said objective and said pentamirror, and a rotating polygonal prism forming a Cartesian scanning device interposed between said pentamirror and said detector means.

Claim 16

A sensing device for passively operative optical tracking systems increasing clarity and modulating uniformity, which includes in combination: an objective, a pentamirror forming a rotating reversion optical system, detector means interposed between said objective and said pentamirror, and a rotating polygonal prism forming a Cartesian scanning device interposed between said pentamirror and said detector means.

Claim 17

A sensing device for passively operative optical tracking systems increasing clarity and modulating uniformity, which includes in combination: an objective, a rotating polygonal prism forming a Cartesian scanning device, a deviating mirror located between said objective and said polygonal prism and adapted through said objective to receive a bundle of rays and to reflect the same, and a rotating pentamirror arranged to receive the rays reflected by said deviating mirror and to turn the image and to reflect the same to said polygonal prism.

Claim 18

A sensing device for passively operative optical tracking systems increasing clarity and modulating uniformity, which includes in combination: an objective, a rotating polygonal prism forming a Cartesian scanning device, a deviating mirror located between said objective and said polygonal prism and adapted through said objective to receive a bundle of rays and to reflect the same, and a rotating pentamirror arranged to receive the rays reflected by said deviating mirror and to turn the image and to reflect the same to said polygonal prism.