System for parallax correction

Patent metadata

Field	Value
Publication number	US-9784942-B2
Application number	US-201615132983-A
Country	US
Kind code	B2
Filing date	Apr 19, 2016
Priority date	Apr 20, 2015
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A system for parallax correction includes a housing of a camera having a channel perpendicular to an optical axis of the camera. A lens enclosure is within the housing and includes a tab slideable along the channel. A first lens is positioned within the lens enclosure having a first focal plane array. A second lens is positioned within the lens enclosure having a second focal plane array. The second focal plane array is coupled to a pin disposed within the tab of the housing. The tab is configured to direct the pin to slide perpendicular to the optical axis along the channel to move the second focal plane array laterally with respect to the first focal plane array to correct for parallax between the first and second lenses.

First claim

What is claimed is:

1. A system for parallax correction, comprising:
a housing of a camera having a channel perpendicular to an optical axis of the camera;
a lens enclosure within the housing including a tab slideable along the channel;
a first lens positioned within the lens enclosure having a first focal plane array; and
a second lens positioned within the lens enclosure having a second focal plane array, wherein the second focal plane array is coupled to a pin disposed within the tab of the lens enclosure, wherein the tab is configured to direct the pin to slide perpendicular to the optical axis along the channel to move the second focal plane array laterally with respect to the first focal plane array to correct for parallax between the first and second lenses.

2. The system of claim 1 , further comprising a scroll disc having a groove for accepting a second pin extending radially from the second lens therein, wherein the scroll disc is configured to displace the pin along the channel.

3. The system of claim 2 , wherein the groove of the scroll disc is circular.

4. The system of claim 1 , wherein a slot is formed within the tab of the lens enclosure to accept the pin there, the slot being curved to accurately direct the pin.

5. The system of claim 1 , further comprising a knob coupled to the scroll disc and to the lens enclosure, wherein the knob is configured to rotate the scroll disc to displace the pin and extend and retract the lens enclosure.

6. The system of claim 1 , further comprising an actuator for extending and retracting the lens enclosure towards an object to focus on the object.

7. The system of claim 1 , wherein the first lens is a short wave infrared lens and the second lens is a long wave infrared lens.

8. The system of claim 1 , wherein the first focal plane array is separated from the second focal plane array.

Assignees

• Sensors Unlimited Inc

Inventors

• Kovacs Laszlo

Classifications

• H04N23/90

  Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums · CPC title

• G02B7/06 Primary

  Focusing binocular pairs · CPC title

• G02B7/023

  permitting adjustment · CPC title

• G03B17/12 Primary

  with means for supporting objectives, supplementary lenses, filters, masks, or turrets · CPC title

• H04N5/247

  Electricity · mapped topic