公开(公告)号：US11735099B1

公开(公告)日：2023-08-22

申请号：US17212599

申请日：2021-03-25

Applicant: DHPC Technologies, Inc.

Inventor： Yei Wo

IPC: G09G3/32 ,  G09G3/00 ,  G01J1/08

CPC classification number: G09G3/32 ,  G09G3/03 ,  G01J1/08 ,  G01J2001/083

Abstract: A display that can play dynamic video imagery using purely infrared light. Such dynamic video imagery is useful in testing infrared detection equipment. The display contains thousands of solid state infrared LEDs. Different infrared LED types are used. Each type of LED in use emits infrared light in some selected band of the infrared spectrum. The overall display can be designed to simulate infrared signal sources for a particular type of infrared detection system. If a particular infrared detection system detects infrared energy only in a specific range, the infrared LED display can be made to have a high resolution of LEDs within that specific range and a lower resolution of LEDs outside that specific range that would be useful for calibration purposes.

公开(公告)号：US11774323B1

公开(公告)日：2023-10-03

申请号：US17212348

申请日：2021-03-25

Applicant: DHPC Technologies, Inc.

Inventor： Yei Wo

IPC: G01M11/04 ,  F41G7/00

CPC classification number: G01M11/04 ,  F41G7/004

Abstract: A system, method, and device for simulating an IR signature to test an IR detection device. At least one infrared LED display is provided. Each infrared LED display contains infrared LEDs that emit the desired IR signature. A reflector reflects the IR signature toward the IR detection device. The configuration of the reflector is dependent upon the configuration of the infrared LED display and whether or not some intermediate lens system is used. The IR signature is collimated as it travels to the IR detection device. The IR signature can be collimated by the reflector or by an added lens system. The IR signature fills the field of view associated with the IR detection system. The IR signature comes from a computer-controlled display. As such, the system can simulate various IR signatures and move those IR signatures throughout the field of view of the IR detection system.

公开(公告)号：US10690543B1

公开(公告)日：2020-06-23

申请号：US16377113

申请日：2019-04-05

Applicant: DHPC Technologies, Inc.

Inventor： Yei Wo ,  Bruce P. Boczar ,  Joseph M. Aletta

IPC: G01J1/02 ,  G01J1/42 ,  G01J1/04

Abstract: A system, method, and device for evaluating the intensity profile of a laser beam. The laser detection system has a target surface with an interior and an exterior. The target surface and a housing create a target pod with an enclosed interior chamber. A beacon is provided at the target pod to provide for targeting. A camera is provided that images the interior of the target surface from within the enclosed interior chamber. Some percentage of the intensity of the laser beam passes through the target surface uniformly and illuminates the interior of the target surface when the laser beam strikes the target surface. The illumination of and subsequent scattering from the interior of the target surface is imaged by the camera for analysis. By detecting the laser intensity as a function of position, the intensity profile of the laser beam can be quantified.

公开(公告)号：US10527920B1

公开(公告)日：2020-01-07

申请号：US16297538

申请日：2019-03-08

Applicant: DHPC Technologies, Inc.

Inventor： Yei Wo ,  Bruce P. Boczar ,  Richard Gifford ,  Joseph M. Aletta

IPC: G03B21/60 ,  G03B21/56 ,  G02B27/22 ,  G03B21/62 ,  G03B21/58

Abstract: A system, method, and device for simulating an emission signature, which contains representative intensity, temporal, and spectral emission profiles of a weapon system or weapon platform for the purpose of testing an optical detection device. A projection system optically projects the emission signature. A projection screen is provided that has a concave curvature. The concave curvature possesses a first focal point and a second focal point. Any light emanating from the second focal toward the projection screen is reflected by the projection screen toward the first focal point. The projection system is positioned at the second focal point and the optical detection system is positioned at the first focal point. In this manner, the emission signature projected by the projector system is redirected to the optical detection system.