Apparatus and method for optical tracking and aiming

• US 4,063,815 A
• Filed: 03/22/1976
• Issued: 12/20/1977
• Est. Priority Date: 03/27/1975
• Status: Expired due to Term

• Current Assignee: Ludwi Pietzsch GmbH & Company
• Original Assignee: Dr.-Ing. Ludwig Pietzsch
• Inventors: Wiemer, Karl-Heinz, Kauer, Harald, Wilken, Joachim
• Primary Examiner(s): Bentley, Stephen C.
• Application Number:
  US05/669,173
• Time in Patent Office: 638 Days
• Field of Search: 33/241, 33/246, 89/41 E, 89/36 K, 89/41 TV, 350/21, 350/22, 350/24, 350/48, 350/52, 350/301, 356/254, 356/255, 356/29
• US Class Current: 356/29
• CPC Class Codes: F41G 3/22 for vehicle-borne armament, e.g. on aircraft
• CPC Class Codes: F41G 5/00 Elevating or traversing control systems for guns means for inhibiting firing in a specified direction F41A17/08; gun mountings permitting traversing or elevating movement, e.g. gun carriages, F41A27/00; computers G06
• CPC Class Codes: F41H 5/266 Periscopes for fighting or armoured vehicles
• CPC Class Codes: G01S 3/785 using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system

Abstract

The invention relates to an apparatus and method for optical tracking and aiming from a movable system, such as a vehicle. The apparatus may comprise a viewing device having a sighting mark moveable responsive to the position of an aiming mechanism control. The sighting mark may be superimposed on a field of vision observable in the viewing device, by stroboscopic illumination.

Claims

1. An apparatus for optically tracking an object and indicating the alignment of an aimable device including:

viewing means for making visual observations of the object, said means having a field of vision;

a sighting mark superimposed on the field of vision; and

,

means for operatively coupling said sighting mark and aimable device so that the position of said sighting mark on the field of vision corresponds to the alignment of the aimable device, said viewing means including a plurality of periscopic deflection viewing devices radially distributed about a center of observation and rotated about the center of observation at a speed exceeding the temporal resolving power of the human eye in order to transmit an image of the object to a protected position.

2. The apparatus of claim 1 further comprising means for superimposing the sighting mark stroboscopically including a stroboscopic flash bulb device responsive to the rotational speed of the periscopic deflection viewing device.

3. The apparatus of claim 2 wherein said means for superimposing the sighting mark includes means for selectively illuminating a window in a mirror coated surface of at least one of said plurality of periscopes at a point in time corresponding to the orientation of the aimable device with respect to the terrain.

4. The apparatus of claim 1 further comprising an optical system, with a field of vision narrower than a field of vision of said viewing means, for aiming the aimable device, said optical system having an optical axis moved responsively to the position of said sighting mark.

5. The apparatus of claim 1 wherein said aimable device is uncoupled from the movement of the vehicle in at least one axis.