# US 11,079,740 B1 · Processes for producing 3D-appearing self-illuminating high definition photoluminescent and translucent lithophane, a quasi-color process for producing quasi-color photoluminescent and translucent lithophane, and an authenticity chip process for creating an authenticity chip lithophane

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- Number: US 11,079,740 B1
- Document ID: US11079740B1
- Status: Granted
- Kind: B1
- Application number: 16/503,275
- Filed: 2019-07-03
- Granted: 2021-08-03
- Earliest claimed: 2018-07-03
- Applicants: Ross Leigh Miltenberg
- Inventors: Ross Leigh Miltenberg
- Web page: https://patentgrep.com/patent/US11079740B1

## CPC

- G05B 19/4099: Surface or curve machining, making three-dimensional [3D] objects, e.g. desktop manufacturing
- B29C 64/386: Data acquisition or data processing for additive manufacturing
- B33Y 50/00: Data acquisition or data processing for additive manufacturing
- B33Y 80/00: Products made by additive manufacturing
- G05B 2219/49007: Making, forming 3-D object, model, surface
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING

## Abstract

Processes are disclosed for producing 3D-appearing self-illuminating high definition photoluminescent lithophane of a digitized picture in which the photoluminescent lithophane provides a glow-in-the-dark quality of the digitized picture, and an authenticity chip lithophane is produced. The processes for producing 3D-appearing self-illuminating high definition photoluminescent lithophane of a digitized picture include a monochrome process for producing 3D-appearing self-illuminating high definition photoluminescent lithophane that results in 3D-appearing high definition monochrome glow in the dark prints of digitized pictures and a full color process for producing 3D-appearing self-illuminating high definition photoluminescent lithophane that results in 3D-appearing high definition full color glow in the dark prints of digitized pictures. A luminance pump is employed in the full color process for producing 3D-appearing self-illuminating high definition photoluminescent lithophane to pump light through the rest of the plates and bring the overall brightness up.

## Claims

### Claim 1

A quasi-color process for producing quasi-color photoluminescent lithophane of a digitized picture using only luminance information from the digitized picture comprising:
inputting a digitized photo;
dark extruding the digitized photo according to luminance information to obtain dark information of the digitized photo;
saving the dark extrusion as a 3D model;
configuring printing parameters of the dark extrusion 3D model via a 3D printing slicer program and outputting a gcode file in response to the configured printing parameters for a printing by a 3D printer;
updating the gcode file during material post processing stage that sets lithophane color heights to create the quasi-color effect by a quasi-color formula that stacks a plurality of colored layers from bottom to top of a total lithophane height with a white color layer at the bottom, a green color layer atop the white color layer, a lower blue color layer atop the green color layer, a lower red color layer atop the lower blue color layer, a middle blue color layer atop the lower red color layer, an upper red color layer atop the middle blue color layer, and a top blue color layer at the top and stacked above the upper red color layer, wherein the quasi-color formula comprises a five percent white color layer height of the total lithophane height, a nineteen percent green color layer height of the total lithophane height, a ten percent lower blue color layer height of the total lithophane height, a sixteen percent lower red color layer height of the total lithophane height, a ten percent middle blue color layer height of the total lithophane height, a sixteen percent upper red color layer height of the total lithophane height, and a twenty-one percent top blue color layer height of the total lithophane height; and
using the updated gcode file by the 3D printer to produce the quasi-color photoluminescent lithophane.

### Claim 2 (depends on 1)

The quasi-color process of claim 1, wherein the dark information is used as an extruded height for the 3D model of the digitized photo.

### Claim 3 (depends on 1)

The quasi-color process of claim 1, wherein the printing parameters comprise a position, an infill density, and a layer height.

### Claim 4

A quasi-color process for producing quasi-color photoluminescent lithophane of a digitized picture using only luminance information from the digitized picture comprising:
inputting a digitized photo;
dark extruding the digitized photo according to luminance information to obtain dark information of the digitized photo;
saving the dark extrusion as a 3D model;
configuring printing parameters of the dark extrusion 3D model via a 3D printing slicer program and outputting a gcode file in response to the configured printing parameters for a printing by a 3D printer;
updating the gcode file during material post processing stage that sets lithophane color heights to create the quasi-color effect by stacking a plurality of colored layers according to a quasi-color formula that specifies a five percent white color layer height of a total lithophane height, a nineteen percent green color layer height of the total lithophane height, a ten percent lower blue color layer height of the total lithophane height, a sixteen percent lower red color layer height of the total lithophane height, a ten percent middle blue color layer height of the total lithophane height, a sixteen percent upper red color layer height of the total lithophane height, and a twenty-one percent top blue color layer height of the total lithophane height; and
using the updated gcode file by the 3D printer to produce the quasi-color photoluminescent lithophane.

### Claim 5 (depends on 4)

The quasi-color process of claim 4, wherein the dark information is used as an extruded height for the 3D model of the digitized photo.

### Claim 6 (depends on 4)

The quasi-color process of claim 4, wherein the printing parameters comprise a position, an infill density, and a layer height.