Micro-Pillar Methods and Apparatus

摘要

A computer produces a digital model that efficiently describes a dense array of many micro-pillars. The digital model achieves this efficiency by describing an entire micro-pillar with only a few parameters. For example, an entire micro-pillar may be described by two of more of the following parameters: height, base thickness, profile and tilt. The computer outputs instructions to fabricate the micro-pillar array, in accordance with the digital model. A 3D printer fabricates the micro-pillar array, based on the instructions. Applying vibration to a directional array of micro-pillars may cause the array of micro-pillars to actuate motion of a passive object that is touching the array. Also, a sensor may measure sounds caused by swipes against a micro-pillar array, and output signals indicative of the measurements. A computer performs a machine learning algorithm that takes the measurements as an input, and classifies the swipes.

主权项

1. A method comprising:
(a) a computer
(i) generating a digital model of an array of micro-pillars, which digital model specifies, for each respective micro-pillar in the array or in a portion of the array, values of at least two parameters out of a set of parameters, which set consists of height of the respective micro-pillar, tilt of the respective micro-pillar, base thickness of the respective micro-pillar, and profile of the respective micro-pillar, and(ii) outputting instructions for fabrication of the array in accordance with the digital model; and (b) a 3D printer fabricating the array in accordance with the instructions.