Camera testing using virtual images

• US 9,843,796 B2
• Filed: 09/12/2016
• Issued: 12/12/2017
• Est. Priority Date: 12/10/2014
• Status: Active Grant

• Current Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Original Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Inventors: Shen, Shizhe
• Primary Examiner(s): Tran, Trang U
• Application Number:
  US15/263,250
• Publication Number:
  US 20160381355A1
• Time in Patent Office: 456 Days
• Field of Search: 348187, 348188, 348181, 348175, 348 48, 348 47, 348135, 348139, 3482221, 3482231, 348234, 348370
• CPC Class Codes: G03B 15/03 Combinations of cameras with lighting apparatus; Flash units
• CPC Class Codes: G06T 2207/10148 Varying focus
• CPC Class Codes: G06T 7/0002 Inspection of images, e.g. flaw detection
• CPC Class Codes: H04N 17/002 for television cameras
• CPC Class Codes: H04N 23/57 Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Abstract

An apparatus includes a virtual image generation device, a receptacle for a digital camera, and a light booth. The virtual image generation device is configured to generate a plurality of test images within the light booth in accordance with a test sequence. The receptacle is configured to enable detection of the test images by the digital camera.

Claims

1. An apparatus, comprising:

a virtual image generation device;

a receptacle for a digital camera; and

a light booth;

wherein the virtual image generation device is located opposite to the receptacle for a digital camera within the light booth and is configured to generate a plurality of test images within the light booth by projecting light rays that converge at respective focal planes in the light booth between the receptacle and the virtual image generation device, in accordance with a test sequence; and

wherein the receptacle is configured to enable detection of the test images by the digital camera.

2. The apparatus of claim 1, wherein the virtual image generation device comprises a light field display.

3. The apparatus of claim 1, wherein the virtual image generation device comprises a microlens array.

4. The apparatus of claim 1, wherein each test image of the plurality of test images corresponds to a respective focal distance with respect to the digital camera.

5. The apparatus of claim 1, wherein the virtual image generation device is configured to:

project light rays to show a first test image to be captured by the image capture device; and

project light rays to show a second test image to be captured by the image capture device.