公开(公告)号：US11865783B2

公开(公告)日：2024-01-09

申请号：US18046957

申请日：2022-10-17

Applicant: Texas Instruments Incorporated

Inventor： Zhongyan Sheng ,  Alexander Lyubarsky ,  Stephen Aldridge Shaw ,  Michael Terry Davis

IPC: B29C64/277 ,  B33Y30/00 ,  G02B3/00 ,  G02B17/04 ,  G02B27/09

CPC classification number: B29C64/277 ,  B33Y30/00 ,  G02B3/0006 ,  G02B17/04 ,  G02B27/0977

Abstract: Described examples a three-dimensional printer includes a vat having a transparent bottom, the vat configured to contain a photo-polymerizing resin and a lift plate movably positioned within the vat. The three-dimensional printer also includes an optical device configured to project a pattern of light through the transparent bottom. The optical device includes a light source configured to provide light at a light source output and a light integrator configured to provide divergent light at a light integrator output responsive to the light at the light source output. The optical device also includes projection optics configured to project projection output light at an optics output through the transparent bottom responsive to a modulated light at the optics input and a spatial light modulator configured to provide the modulated light responsive to the divergent light.

公开(公告)号：US11765325B2

公开(公告)日：2023-09-19

申请号：US17085483

申请日：2020-10-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kristofer Scott Oberascher ,  Gregory Scott Pettitt ,  Jeffrey Matthew Kempf ,  Michael Terry Davis ,  Xi Zhou

IPC: H04N9/31 ,  G03B21/20

CPC classification number: H04N9/3117 ,  G03B21/2066 ,  H04N9/3158

Abstract: A system having a color filter having first and second segments. The first and second segments allow respective first and second wavelengths to pass through to a spatial light modulator. The first and second segments also reflect second and first wavelengths, respectively. The reflected first and second wavelengths are recycled and directed towards the color filter.

公开(公告)号：US11498276B2

公开(公告)日：2022-11-15

申请号：US16520249

申请日：2019-07-23

Applicant: Texas Instruments Incorporated

Inventor： Zhongyan Sheng ,  Alexander Lyubarsky ,  Stephen Aldridge Shaw ,  Michael Terry Davis

IPC: B29C64/277 ,  B33Y30/00 ,  G02B3/00 ,  G02B17/04 ,  G02B27/09

Abstract: Described examples include an optical device, having a light source with a light source output and a light integrator having a light integrator input and a light integrator output, the light integrator input optically coupled to the light source output, and the light integrator configured to provide divergent light at the light integrator output responsive to the light at the light source output. The optical device also has projection optics with an optics input and an optics output, the projection optics configured to project output light at the optics output responsive to modulated light at the optics input, in which a focal point of the optics input matches a divergence of the modulated light and a spatial light modulator optically coupled between the light integrator output and the optics input, the spatial light modulator configured to provide the modulated light responsive to the divergent light.