WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
maximize
Machine translation
1. (WO2018089969) SURFACE PROPERTY CAPTURE AND MEASUREMENT DEVICE
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

WHAT IS CLAIMED IS:

1. An apparatus for a digital data gathering device, said digital data gathering device accepting incoming light through a lens of said digital data gathering device, said apparatus comprising:

a housing having a first end and a first aperture formed in said first end, and a second end and a second aperture formed in said second end;

an illumination source in communication with an interior of said housing; and at least one opening in said housing permitting ingress of ambient light into said housing to illuminate said second aperture when said second end of said apparatus is placed in touching contact with a surface.

2. The apparatus of claim 1, wherein:

said second end includes a surface property reference disk having an array of reference indicia on an inner surface of said surface property reference disk; and

wherein said second aperture is formed in said surface property reference disk.

3. The apparatus of claim 2, wherein:

said housing includes a light fixture at said first end and said surface property reference disk at said second end, said light fixture and said surface property reference disk being operatively connected to form said housing.

4. The apparatus of claim 2, wherein:

said reference indicia includes at least standardized dimensional, topographical and tonal markings; and

wherein illumination from said illumination source reflects from said markings and is received through said lens of said digital data gathering device.

5. The apparatus of claim 2, wherein:

the light source, when illuminated, is configured to eliminate effects of said ambient light on said surface property reference disk and said surface.

6. The apparatus of claim 1, wherein:

said at least one opening is a plurality of openings spaced along a periphery of said housing.

7. A method for calibrating and evaluating light entering through a lens of a digital data gathering device, comprising the steps of:

attaching a shroud to said digital data gathering device, said shroud having a first end and a first aperture formed in said first end, and a second end and a second aperture formed in said second end;

positioning said second end of said shroud in touching contact with a surface, thereby preventing ambient light from entering an interior of said shroud through said second aperture;

aligning said second aperture with a target area of said surface under ambient light entering through an opening in said shroud;

illuminating said second aperture and said target area of said surface with light from an illumination source positioned within said shroud; and

performing an exposure operation of said digital data gathering device, said exposure operation causing said digital data gathering device to gather digital data pertaining to said target area of said surface.

8. The method according to claim 7, further comprising the step of:

performing a second exposure operation of said digital data gathering device under ambient light conditions without light from said illumination source.

9. The method according to claim 7, wherein:

said step of performing an exposure operation causes said digital data gathering device to gather digital data pertaining to an array of reference indicia on an inner surface of a surface property reference disk positioned at said second end of said shroud;

wherein said second aperture is formed in said surface property reference disk.

10. The method according to claim 9, wherein:

said reference indicia includes at least standardized dimensional, topographical and tonal markings.

11. The method according to claim 7, wherein:

said light from said illumination source is sufficient to substantially mitigate effects of said ambient light on said digital data pertaining to said target area of said surface gathered by said digital data gathering device.

12. The method according to claim 7, wherein:

said shroud includes at least one opening in a peripheral side wall of said shroud between said first and said second end for permitting ingress of said ambient light.

13. The method according to claim 7, further comprising the step of:

with a processor in communication with the digital data gathering device, detecting specular highlights in an image of said target surface, removing data corresponding to said specular highlights, and replacing said removed data wit interpolated data from non-removed data within said image.

14. The method according to claim 7, wherein:

performing said exposure operation of said digital data gathering device includes performing a plurality of exposure operations of said digital data gathering device as said digital data gathering device is moved across said surface.

15. An apparatus for a digital data gathering device, said digital data gathering device accepting incoming light through a lens of said digital data gathering device, said apparatus comprising:

a shroud having a first end and a first aperture formed in said first end, and a second end opposite from said first end, said first end being configured for selective attachment to said digital data gathering device;

a surface property reference disk positioned at said second end and having a second aperture in general alignment with said first aperture and said lens of said digital data gathering device, said surface property reference disk further including an array of reference indicia on an inner surface of said surface property reference disk; an illumination source in communication with an interior of said shroud and being configured to illuminate said second aperture when; and

at least one opening in said shroud permitting ingress of ambient light into said interior of said shroud to illuminate said second aperture when said second end of said apparatus is placed in touching contact with a surface.