Abstract: An image capturing device includes a base, a light sensing element, an image capturing lens, and multiple light sources. The light sensing element is disposed on the base. The image capturing lens is disposed above the light sensing element. The light sources are disposed on the base and arranged beside the image capturing lens. Each of the light sources emits a light beam. A chief ray direction of the light beam has a horizontal component and a vertical component. The horizontal component and the vertical component are both greater than zero.

Abstract: A bi-directional ratchet wrench includes a handle with a head at a front side formed a housing trough to hinge a ratchet wheel which has ratchet teeth on the perimeter and a knob strut jutting from one end surface, a switch element located in a swivel space formed at the housing trough with a plurality of harness teeth formed respectively on the left and right sides of a front end to allow the harness teeth on one side to engage with the ratchet teeth, and having a rear side formed with two concave portions, and confined at a selected swivel angle on the left and right sides by two retaining troughs formed in the swivel space, a butting unit having an elastic element embedded in the head and a spherical butting member butting the concave portions, and a sealing lid to seal the ratchet wheel and switch element.