US Patent No. 10,989,378

LIGHT-UNIT(S) OF LED OR-AND LASER LIGHT-STRING'S HAS MORE ONE SECTIONS HAS DIFFERENT LIGHT PERFORMANCE(S)


Patent No. 10,989,378
Issue Date April 27, 2021
Title Light-unit(s) Of Led Or-and Laser Light-string's Has More One Sections Has Different Light Performance(s)
Inventorship Tseng-Lu Chien, Walnut, CA (US)

Claim of US Patent No. 10,989,378

1. A projection light string having at least one LED and/or laser light source, comprising;at least one injected or assembled or add-on light unit to form a light string that connects to a power source through an AC plug wire, AC prong, AC lamp base, or battery contacts without pigtail connection; and through a built-in or external AC-to-DC circuit,
wherein the direct current is supplied to an integrated circuit to create at least one steady, changing, or moving light color image and/or lighted pattern for projection to a surface feet away from the light source for indoor and outdoor application,
wherein each light unit includes at least one LED, laser, or LED and laser light source,
wherein at least one light unit has built-in at least one of:
(1) at least one image forming piece,
(2) at least one optics lens or cover,
(3) at least one laser or grating piece,
(4) at least one film,
(5) at least one slide,
(6) at least one pinhole,
(7) at least one painted or printed piece, and
(8) at least one cutout or window;
to form the projected images or patterns, and
wherein the light string has more than one function selected by a switch or controller to change a first function to another function.