公开(公告)号：US20190155136A1

公开(公告)日：2019-05-23

申请号：US15821701

申请日：2017-11-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vikrant R. Bhakta ,  Steven Paul Krycho

IPC: G03B21/20 ,  F21V14/08 ,  F21V11/08

CPC classification number: G03B21/208 ,  F21V9/04 ,  F21V9/06 ,  F21V9/30 ,  F21V11/08 ,  F21V14/08 ,  G03B21/008 ,  G03B21/204 ,  G03B21/2066

Abstract: In described examples, one or more devices include: a light source to generate a beam of light; and optics to generate a spot of light in response to the beam of light. A color wheel revolves in a direction of rotation about an axis, so the spot of light illuminates an area of the color wheel. The spot of light has: a first width; and a second width wider than the first width and orthogonal to the first width. The first width is aligned tangential to the direction of rotation.

公开(公告)号：US10416547B2

公开(公告)日：2019-09-17

申请号：US15821701

申请日：2017-11-22

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vikrant R. Bhakta ,  Steven Paul Krycho

IPC: G03B21/20 ,  F21V11/08 ,  F21V14/08 ,  F21V9/30 ,  G03B21/00 ,  F21V9/04 ,  F21V9/06

Abstract: In described examples, one or more devices include: a light source to generate a beam of light; and optics to generate a spot of light in response to the beam of light. A color wheel revolves in a direction of rotation about an axis, so the spot of light illuminates an area of the color wheel. The spot of light has: a first width; and a second width wider than the first width and orthogonal to the first width. The first width is aligned tangential to the direction of rotation.