公开(公告)号：US20220016838A1

公开(公告)日：2022-01-20

申请号：US17491966

申请日：2021-10-01

Applicant: Carbon, Inc.

Inventor： Bob E. Feller ,  Ariel M. Hermann ,  John R. Tumbleston ,  David Moore ,  Gregory W. Dachs, II

IPC: B29C64/245 ,  B29C64/135 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/393 ,  B29C64/124 ,  B29C64/129

Abstract: A build plate assembly for a three-dimensional printer includes: a lighting panel having individually addressable pixels configured to selectively emit light and/or transmit light from illumination below the pixels to a top surface top surface of the lighting panel; a rigid, optically transparent, gas-impermeable planar screen or base having an upper surface having an uneven surface topology and a lower surface that is affixed to the top surface of the lighting panel; and a flexible, optically transparent, gas-permeable sheet having upper and lower surfaces, the upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface positioned opposite the base, wherein the build plate is configured to permit gas flow to the build surface.

公开(公告)号：US11993015B2

公开(公告)日：2024-05-28

申请号：US17491966

申请日：2021-10-01

Applicant: Carbon, Inc.

Inventor： Bob E. Feller ,  Ariel M. Hermann ,  John R. Tumbleston ,  David Moore ,  Gregory W. Dachs, II

IPC: B29C64/245 ,  B29C64/124 ,  B29C64/129 ,  B29C64/135 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/245 ,  B29C64/124 ,  B29C64/129 ,  B29C64/135 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A build plate assembly for a three-dimensional printer includes: a lighting panel having individually addressable pixels configured to selectively emit light and/or transmit light from illumination below the pixels to a top surface top surface of the lighting panel; a rigid, optically transparent, gas-impermeable planar screen or base having an upper surface having an uneven surface topology and a lower surface that is affixed to the top surface of the lighting panel; and a flexible, optically transparent, gas-permeable sheet having upper and lower surfaces, the upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface positioned opposite the base, wherein the build plate is configured to permit gas flow to the build surface.

公开(公告)号：US20210031451A1

公开(公告)日：2021-02-04

申请号：US16965741

申请日：2020-04-16

Applicant: Carbon, Inc.

Inventor： Anant Chimmalgi ,  Jordan Christopher Fidler ,  Ariel M. Hermann

IPC: B29C64/295 ,  B29C64/124 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A stereolithography apparatus includes a light transmissive window defining a build region in which a polymerizable resin can be supported, the window characterized by a transmission spectra curve having a low transmissivity region between first and second high transmissivity regions; a carrier platform positioned above the window; a drive operatively associated with the carrier platform and the window and configured for advancing the window and the carrier platform away from one another; an ultraviolet light source positioned beneath the window; at least one infrared heat source positioned beneath the window; at least one temperature sensor operatively associated with the build region and configured to sense (directly or indirectly) the temperature of a polymerizable resin in the build region; and a temperature controller operatively associated with the temperature sensor and the infrared heat source, the controller configured to intermittently activate the infrared heat source to an elevated temperature at which the emission spectra peak for the heat source is within the first high transmissivity region.

公开(公告)号：US20200231713A1

公开(公告)日：2020-07-23

申请号：US16741821

申请日：2020-01-14

Applicant: CARBON, INC.

Inventor： John R. Tumbleston ,  Ariel M. Hermann ,  Matthew Panzer ,  Tabor Baranti

IPC: C08F2/01 ,  G03F7/09 ,  H05B6/06 ,  C09D11/101

Abstract: A test cell useful for determining the photosensitivity of a photopolymerizable material, includes a support plate having a top surface portion, a bottom surface portion, and an opening extending therebetween, a light-transmissive base member removably or permanently connected to said bottom surface portion to form with said opening a well, into which well photopolymerizable material can be deposited, and a sensor comprising a thermal sensor, strain sensor, or combination thereof operatively associated with said light-transmissive base member.