Light guide film product processing apparatus

    公开(公告)号:US11806957B2

    公开(公告)日:2023-11-07

    申请号:US16965763

    申请日:2020-06-10

    发明人: Yong Liu Yonggang Li

    IPC分类号: B29D11/00

    摘要: The light guide film product processing apparatus provided in the present invention relates to the field of light guide film processing, and includes an unwinding device for transmitting a first light guide film, a dot processing device, a cooling device, a cutting device, a waste collecting device, and a product collecting device that are sequentially installed along the transmission direction of the first light guide film, and a linkage controller; the dot processing device transfers dots on both sides of the first light guide film, the cooling device cools the first light guide film after dot processing, the cutting device cuts the cooled first light guide film, the waste collecting device is configured to wind a second light guide film, and the second light guide film is a remaining material after the first light guide film is cut into a light guide film product; and the included angle formed between the winding and transmission direction of the second light guide film and the transmission direction of the first light guide film is defined as α, where α>0. The linkage controller controls the starting and stopping of the dot processing device, the cooling device, and the cutting device by means of a program to implement the integrated production process of one-step forming of dots on both sides of a light guide film, light guide film product cutting, and remaining material recovery.

    METHOD OF FABRICATION OF COMPOUND LIGHT-GUIDE OPTICAL ELEMENTS

    公开(公告)号:US20230251415A1

    公开(公告)日:2023-08-10

    申请号:US18135162

    申请日:2023-04-16

    申请人: Lumus Ltd.

    IPC分类号: F21V8/00 B29D11/00

    摘要: A method of fabricating a compound light-guide optical element (LOE) is provided. A bonded stack of a plurality of LOE precursors and a plurality of transparent spacer plates alternating therebetween is bonded to a first optical block having a plurality of mutually parallel obliquely angled internal surfaces. The block is joined to the stack such that first plurality of partially reflective internal surfaces of the block is non-parallel to the internal surfaces of the LOE precursor. After bonding, a second optical is thereby formed. At least one compound LOE is sliced-out of the second optical block by cutting the second block through at least two consecutive spacer plates having a LOE precursor sandwiched therebetween.