LED RING LIGHT AND MANUFACTURE METHOD OF LED RING LIGHT AND IMAGE MEASURING DEVICE AND OPTICAL DEVICE USING LED RING LIGHT

摘要

An LED ring light including a holding frame having a generally annular shape in a plan view and an aperture into which an objective lens can be inserted around a center of the holding frame; an LED substrate held inside the holding frame in a generally frusto-conical shape; and a plurality of LEDs arranged on an inner circumferential surface of the LED substrate. The LED substrate is divided at a plurality of locations in a circumferential direction of the inner circumferential surface of the holding frame by arranging a plurality of substrates side by side.

主权项

1. An LED ring light comprising:
a holding frame having a generally annular shape in a plan view and an aperture in a center of the holding frame into which an objective lens is insertable; an LED substrate positioned inside the holding frame in a generally frusto-conical shape; and a plurality of LEDs arranged on an inner circumferential surface of the LED substrate; wherein the LED substrate is divided at a plurality of locations in a circumferential direction of the inner circumferential surface of the holding frame by a plurality of substrates in a side by side arrangement.