Cosmetic Evaluation Box for Used Electronics

• US 20170167986A1
• Filed: 04/19/2015
• Published: 06/15/2017
• Est. Priority Date: 04/25/2014
• Status: Abandoned Application

• Current Assignee: GDT, Inc.
• Original Assignee: GDT, Inc.
• Inventors: Trinh, Tien, Nguyen, Tu
• Application Number:
  US14/690,450
• Publication Number:
  US 20170167986A1
• Time in Patent Office: Days
• CPC Class Codes: G01N 2021/555 Measuring total reflection power, i.e. scattering and specular
• CPC Class Codes: G01N 2021/8841 Illumination and detection on two sides of object
• CPC Class Codes: G01N 21/47 Scattering, i.e. diffuse reflection G01N21/25, G01N21/41 take precedence G01N21/55 takes precedence
• CPC Class Codes: G01N 21/55 Specular reflectivity
• CPC Class Codes: G01N 21/8806 Specially adapted optical and illumination features
• CPC Class Codes: G01N 21/95 characterised by the material or shape of the object to be examined G01N21/89 - G01N21/91, G01N21/94 take precedence
• CPC Class Codes: G01N 2201/022 Casings
• CPC Class Codes: G01N 2201/061 Sources
• CPC Class Codes: G01N 2201/126 Microprocessor processing
• CPC Class Codes: G03B 15/06 Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
• CPC Class Codes: G03B 2215/05 Combinations of cameras with electronic flash units
• CPC Class Codes: G06T 2207/30164 Workpiece; Machine component
• CPC Class Codes: G06T 7/0004 Industrial image inspection

Abstract

A cosmetic testing fixture is disclosed for evaluating the cosmetic condition of a used electronic device, comprising an enclosure for containing the used electronic device and a fixture that uses the relative amounts of reflected and scattered light off a surface of the used electronic device to determine if there are any cosmetic imperfections such as scratches or cracks on the surface.

Claims

1. A cosmetic testing fixture for an electronic device, said electronic device comprising a top surface and a bottom surface, said cosmetic testing fixture comprising:

an enclosure, said enclosure comprising a floor on which an electronic device may be placed;

a user interface;

at least one first light emitter, said first light emitter configured to emit electromagnetic radiation onto at least one surface of the electronic device;

at least one first reflected light sensor, said first reflected light sensor configured to sense electromagnetic radiation reflected off the at least one surface of the electronic device;

at least one first scattered light sensor, said first scattered light sensor configured to sense electromagnetic radiation scattered by the at least one surface of the electronic device;

a processor, said processor configured to perform the following functions;

identify the electronic device;

evaluate the amount of electromagnetic radiation sensed by the first reflected light sensor;

evaluate the amount of electromagnetic radiation sensed by the first scattered light sensor.

2. The cosmetic testing fixture of claim 1, further comprising a device holder capable of holding the electronic device without obstructing either its front surface or its back surface, where the at least one first light emitter is configured to emit light onto the front surface of the electronic device and onto the back surface of the electronic device.

3. The cosmetic testing fixture of claim 1, further comprising a device holder capable of holding the electronic device without obstructing either its front surface or its back surface, where the at least one first light emitter is configured to emit light onto the front surface of the electronic device, further comprising:

at least one second light emitter, said second light emitter configured to emit electromagnetic radiation onto the back surface of the electronic device;

at least one second reflected light sensor, said second reflected light sensor configured to sense electromagnetic radiation reflected off the back surface of the electronic device;

at least one second scattered light sensor, said second scattered light sensor configured to sense electromagnetic radiation scattered by the back surface of the electronic device;

wherein the processor is further configured to;

evaluate the amount of electromagnetic radiation sensed by the at least one second reflected light sensor;

evaluate the amount of electromagnetic radiation sensed by the at least one second scattered light sensor.

4. The cosmetic testing fixture of claim 1, further comprising a device holder capable of holding the electronic device without obstructing either its front surface or its back surface, further comprising:

a device movement mechanism that moves the device holder relative to at least one light emitter.

5. The cosmetic testing fixture of claim 1, further comprising a device holder capable of holding the electronic device without obstructing either its front surface or its back surface, further comprising:

a light emitter movement mechanism that moves the at least one first light emitter, the at least one first scattered light sensor, and the at least one reflected light sensor relative to the electronic device.

6. The cosmetic testing fixture of claim 2, further comprising:

a first light emitter movement mechanism that moves the at least one first light emitter, the at least one first scattered light sensor, and the at least one first reflected light sensor relative to the electronic device;

a second light emitter movement mechanism that moves the at least one second light emitter, the at least one second scattered light sensor, and the at least one second reflected light sensor relative to the electronic device.

7. The cosmetic testing fixture of claim 5, comprising:

a plurality of first light emitters arranged in an array;

a plurality of first scattered light sensors arranged in an array;

a plurality of first reflected light sensors arranged in an array;

wherein the first light emitter movement mechanism moves the plurality of first light emitters, the plurality of first scattered light sensors, and the plurality of first reflected light sensors in such a way as to scan the entire surface of the electronic device.

8. The cosmetic testing fixture of claim 7, where the array is a linear array whose length is no smaller than the width of the electronic device.

9. The cosmetic testing fixture of claim 7, where the array is a two-dimensional array.

10. The cosmetic testing fixture of claim 9, where some light emitters are further away from the surface of the electronic device than other light emitters.

11. The cosmetic testing fixture of claim 9, where some light sensors are further away from the surface of the electronic device than other light sensors.

12. The cosmetic testing fixture of claim 4, where the processor is further configured to:

compare the amount of scattered light and the amount of reflected light at a first location on the surface of the electronic device with the amount of scattered light and the amount of reflected light at a second location on the surface of the electronic device.

13. The cosmetic testing fixture of claim 5, where the processor is further configured to:

compare the amount of scattered light and the amount of reflected light at a first location on the surface of the electronic device with the amount of scattered light and the amount of reflected light at a second location on the surface of the electronic device.

14. The cosmetic testing fixture of claim 4, where the processor is further configured to:

compare the amount of scattered light and the amount of reflected light at a first location on the surface of the electronic device with the amount of scattered light and the amount of reflected light at a second location on the surface of the electronic device.

15. The cosmetic testing fixture of claim 7, where the processor is further configured to:

compare the amount of scattered light and the amount of reflected light at a first location on the surface of the electronic device with the amount of scattered light and the amount of reflected light at a second location on the surface of the electronic device.

16. The cosmetic testing fixture of claim 10, where the processor is further configured to:

compare the amount of scattered light and the amount of reflected light from an emitter located at a first distance from the surface of the electronic device with the amount of scattered light and the amount of reflected light from an emitter located at a second distance from the surface of the electronic device.

17. The cosmetic testing fixture of claim 1, where at least one first light emitter emits electromagnetic radiation of a first frequency and at least one other light emitter emits electromagnetic radiation of a second frequency.

18. The cosmetic testing fixture of claim 1, where at least one first light emitter emits electromagnetic radiation of a first intensity and at least one other light emitter emits electromagnetic radiation of a second intensity.

19. The cosmetic testing fixture of claim 1, where the processor is further configured to:

receive data from the at least one scattered light sensor at regular intervals as the at least one scattered light sensor is moved over the surface of the electronic device;

receive data from the at least one reflected light sensor at regular intervals as the at least one reflected light sensor is moved over the surface of the electronic device;

calculate the standard deviation of the measurement values from at least one of the following group;

scattered light sensor data, reflected light sensor data;

use the standard deviation to evaluate the cosmetic condition of the electronic device.

20. The cosmetic testing fixture of claim 19, where the processor is further configured to:

locate at least one area on the surface of the electronic device where the scattered light value is significantly higher than in other areas on the electronic device.