公开(公告)号：US11385530B2

公开(公告)日：2022-07-12

申请号：US16503489

申请日：2019-07-04

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Nien Lin ,  Yi-Chen Tsai

IPC: G03B21/14 ,  H04N9/31

Abstract: A projecting method includes: outputting, by a projection display apparatus, a projected image to a projection screen through a shifting device, wherein the projected image includes multiple frames; outputting, by a processing circuit, a control signal to drive the shifting device to rotate multiple first angles along a first axis or to rotate multiple second angles along a second axis, wherein combination of the first and the second angles corresponds to multiple projected positions; and when the projection display apparatus outputs multiple frames sequentially, rotating the shifting device sequentially according to the control signal to make multiple frames projected to the corresponding one of projected positions, wherein a number of the first angles or the second angles is at least four.

公开(公告)号：US11460761B2

公开(公告)日：2022-10-04

申请号：US17012060

申请日：2020-09-04

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Nien Lin ,  Ming-Yo Hsu ,  Yi-Chen Tsai

IPC: G03B21/20 ,  G02B6/42

Abstract: An operation method of a remote laser projection device includes emitting a first light to an optical transmission module through at least one light source module; transmitting the first light to at least one projection head through the optical transmission module, wherein total light energy of the first light is allocated to the projection head through the optical transmission module, such that energy of a light transmitted to the projection device is E/N, and wherein E is total light energy of the at least one light module, and N is a number of the at least one projection device.