公开(公告)号：US20190001575A1

公开(公告)日：2019-01-03

申请号：US16062854

申请日：2016-03-24

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Miguel Angel Lopez ,  Pau Martin Vidal ,  Carlos Perez ,  Anna Torrent ,  Guillermo Garcia Marcos ,  Marius Valles ,  Albert Mora Murciano

IPC: B29C64/393 ,  G01F23/292 ,  B29C64/141 ,  B29C64/205 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y30/00

Abstract: There is disclosed a build material supply unit, comprising: a supply chamber body enclosing a supply volume to contain a build material for additive manufacture; an electromagnetic distance sensor to determine a length parameter relating to a length of a beam pathway extending from an emitter of the sensor to a surface level of build material in the supply volume; and a reflector to reflect the beam pathway between the emitter and the surface level of build material; wherein the reflector is spaced apart from the emitter.

公开(公告)号：US11325312B2

公开(公告)日：2022-05-10

申请号：US16062854

申请日：2016-03-24

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Miguel Angel Lopez ,  Pau Martin Vidal ,  Carlos Perez ,  Anna Torrent ,  Guillermo Garcia Marcos ,  Marius Valles ,  Albert Mora Murciano

IPC: B29C64/393 ,  G01F23/292 ,  B33Y30/00 ,  B33Y50/02 ,  G01B11/02 ,  B29C64/321 ,  B29C64/165 ,  B33Y10/00 ,  B29C64/141 ,  B29C64/205

Abstract: There is disclosed a build material supply unit, comprising: a supply chamber body enclosing a supply volume to contain a build material for additive manufacture; an electromagnetic distance sensor to determine a length parameter relating to a length of a beam pathway extending from an emitter of the sensor to a surface level of build material in the supply volume; and a reflector to reflect the beam pathway between the emitter and the surface level of build material; wherein the reflector is spaced apart from the emitter.