Hair-holder, hair-reader comprising the same, and methods for optically acquiring data from hair
US10292482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2017 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Jun 16, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2044/007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for optically acquiring data from hair comprises a hair-holder including: upper and lower plate assemblies respectively having downward-facing and upward-facing opposing surfaces defining a gap therebetween, the lower plate assembly having a window-void therein, the upper plate assembly further comprising a sideward-facing sample-thickness-regulating surface above the gap; and an alignment-wall mechanically coupled to both plate assemblies and having a side-facing alignment surface within gap or sideward-facing into the gap, the alignment surface being straight along a longitudinal direction parallel to both of the opposing surfaces, the hair-holder being configured so that: when an externally-tensioned sample of hair is loaded onto the hair-holder by laterally moving the sample towards the alignment surface, a presence of the sideward-facing sample-thickness-regulating surface regulates an amount of hair permitted to enter the gap, thereby regulating a thickness of hair above the window-void to at least 0.5 mm and at most 2 mm, and after the loading and after release of the external tension, static friction applied by the side-facing alignment surface upon shafts of the h…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.