Optical test apparatus

Patent metadata

Field	Value
Publication number	US-9658043-B2
Application number	US-201514672479-A
Country	US
Kind code	B2
Filing date	Mar 30, 2015
Priority date	Mar 31, 2014
Publication date	May 23, 2017
Grant date	May 23, 2017

Abstract

An optical test apparatus includes a three-dimensional dome, light sources and a control unit. The three-dimensional dome covers a field of view of an image acquisition device. The image acquisition device is a test target device. The light sources are dispersedly arranged on the three-dimensional dome and generate a predetermined image on the three-dimensional dome. The first control unit controls the light sources.

First claim

What is claimed is:

1. An optical test apparatus comprising:
a three-dimensional dome covering a field of view of an image acquisition device as a test target device;
a plurality of light sources dispersedly arranged on the three-dimensional dome; and
a first control unit configured to control the plurality of light sources such that the plurality of light sources generates a predetermined image,
wherein the plurality of light sources are fixed on an inner side of the three-dimensional dome, and
wherein the first control unit is configured to control the predetermined image by selectively activating a part of the plurality of light sources and changing a selection of light sources to be activated.

2. The optical test apparatus according to claim 1 , wherein the first control unit is configured to simulate movement of a target object by controlling the predetermined image.

3. The optical test apparatus according to claim 1 , further comprising:
a plurality of collimators arranged inwardly with respect to the plurality of light sources, respectively,
wherein each of the plurality of collimators is configured to convert diffusion light emitted from a corresponding light source into parallel light to be directed to the test target device.

4. The optical test apparatus according to claim 1 , wherein each of the plurality of light sources is a heat source emitting infrared light.

5. The optical test apparatus according to claim 4 , wherein the heat source is a heat source which reversely uses a principle of a bolometer.

6. An optical test apparatus comprising:
a three-dimensional dome covering a field of view of an image acquisition device as a test target device;
a plurality of light sources dispersedly arranged on the three-dimensional dome; and
a first control unit configured to control the plurality of light sources such that the plurality of light sources generates a predetermined image,
wherein each of the plurality of light sources comprises a light-emitting element and an optical fiber configured to receive light emitted from the light-emitting element.

7. An optical test apparatus comprising:
a three-dimensional dome covering a field of view of an image acquisition device as a test target device;
a plurality of light sources dispersedly arranged on the three-dimensional dome;
a first control unit configured to control the plurality of light sources such that the plurality of light sources generates a predetermined image;
a supporting portion supporting the three-dimensional dome and the test target device and configured to adjust an attitude of the three-dimensional dome and an attitude of the test target device; and
a second control unit configured to control movement of the supporting portion,
wherein the supporting portion comprises a base and a test target device holder,
wherein the three-dimensional dome is fixed to a part of the supporting portion,
wherein the test target device is fixed to the test target device holder, and
wherein the test target device holder is rotatably supported by the base.

8. An optical test apparatus comprising:
a three-dimensional dome covering a field of view of an image acquisition device as a test target device;
a plurality of light sources dispersedly arranged on the three-dimensional dome;
a first control unit configured to control the plurality of light sources such that the plurality of light sources generates a predetermined image;
a supporting portion supporting the three-dimensional dome and the test target device and configured to adjust an attitude of the three-dimensional dome and an attitude of the test target device;
a second control unit configured to control movement of the supporting portion;
a flight command calculating device; and
a steering device,
wherein the image acquisition device is configured to transmit image data to the flight command calculating device,
wherein the flight command calculating device is configured to calculate a steering command value based on the image data, and
wherein the flight command calculating device is configured to transmit the steering command value to the steering device.

9. The optical test apparatus according to claim 8 , further comprising:
an aerodynamic load simulating device configured to apply a simulated aerodynamic load on the steering device,
a simulation arithmetic unit configured to perform a test by controlling the first control unit, second control unit and the aerodynamic load simulating device.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Sato Mariko
• Furuya Shojiro
• Miyoshi Daichi
• Hata Yukito

Classifications

• F42B35/00 Primary

  Testing or checking of ammunition {(apparatus for measuring the energy of projectiles G01L5/14)} · CPC title

• H04N17/002

  for television cameras · CPC title

• F42B15/01

  Arrangements thereon for guidance or control ({steering arrangements F42B10/60}; aircraft flight control B64C; guidance systems other than those installed aboard F41G7/00, F41G9/00; locating by use of radio or other waves G01S; flight control in general G05D1/00; computer aspects G06]) · CPC title

• F42B15/08 Primary

  for carrying measuring instruments; {Arrangements for mounting sensitive cargo within a projectile}(adaptations for meteorology G01W1/08); {Arrangements for acoustic sensitive cargo within a projectile} · CPC title

• G01S3/7803

  Means for monitoring or calibrating · CPC title