Abstract
A light source control structure is disclosed. When power is turned on, if a light source such as an LED lights up immediately, it is prone to cause some damage. For example, when the light of a photo-treatment machine for beauty is turned on, the strong light irradiates patient's face immediately, and the patient's eyes are easily hurt by the strong light suddenly. In the present invention, a ramp-up circuit is installed in the power circuit to support power to the light source and generate a gradually-increasing current through the ramp-up circuit, such that light is irradiated gradually when the light source is turned on. The eyes can adapt to light gradually and avoid damages.
| Translated title of the contribution | Light source control structure |
|---|---|
| Original language | Chinese (Traditional) |
| Patent number | I369156 |
| IPC | H05B-037/02(2006.01) |
| State | Published - 01 02 2007 |
Bibliographical note
公開公告號: I369156Announcement ID: I369156