Cheng Uei Precision Industry Co., Ltd.

Vivotek Inc.

Chih-Chung Wang

Lan-yung Hsiao

Shao-Kai Sun

Ming-Ju Lin

Li-Shan Shih

Yi-Hsin Yeh

Chih-Hung Chang

Wen-Yuan Li

Yi-chuan Chen

An antenna structure includes a substrate, a radiator mounted at an upper portion of a front surface of the substrate, and a grounding element mounted at a lower portion of the front surface of the substrate. The radiator has a first radiating portion. A lower edge of the first radiating portion extends downward to form a second radiating portion. Two portions of a middle of the lower edge of the first radiating portion extend downward to form a third radiating portion and a feeding portion. A free end of the feeding portion is a feeding end. One side edge of the first radiating portion is recessed inward to form a recess. The grounding element has a first grounding portion and a second grounding portion. The first grounding portion and the second grounding portion are located to two sides of the feeding portion, respectively.

Antenna structure

An antenna structure includes a substrate, a radiator mounted at one end of a front surface of the substrate, and a grounding element mounted at the other end of the front surface of the substrate. The radiator has a first radiating portion. Two portions of a middle of one end edge of the first radiating portion extend horizontally to form a second radiating portion and a feeding portion. The feeding portion is located above the second radiating portion. A free end of the feeding portion is a feeding end. An upper portion of the other end edge of the first radiating portion extends opposite to the one end edge of the first radiating portion and extends along a rectangular spiral path to form a rectangular spiral third radiating portion.

A multi-band antenna includes a lower grounding portion, a feed-in portion, a feeding point, an upper grounding portion, a first extending portion, a second extending portion, a third extending portion, a fourth extending portion, a fifth extending portion, a first branch, a second branch, a third branch and a loop portion. The feed-in portion, the first extending portion, the second extending portion, the third extending portion, the fourth extending portion and the first branch form a first radiation portion. The feed-in portion, the first extending portion, the second extending portion, the third extending portion, the fifth extending portion and the second branch form a second radiation portion. The feed-in portion, the first extending portion, the second extending portion and the third branch form a third radiation portion.

Multi-band antenna

A multi-band antenna includes a grounding portion, a feed-in portion, a feeding point, a first radiation portion, a second radiation portion, a third radiation portion and a fourth radiation portion. The feed-in portion has a first end edge, a second end edge, a first side edge and a second side edge. The feeding point is disposed at the feed-in portion. The first radiation portion is extended from the grounding portion. The second radiation portion is extended from the second end edge. The third radiation portion is extended from the first end edge. The fourth radiation portion is extended from an upper portion of the first end edge and an upper portion of the second end edge.

A light emitting module includes a lens and first and second light sources aligning with the lens. The lens includes a first biconcave section having a first light-entrance concave surface and a first light-exit concave surface, a second biconcave section having a second light-entrance concave surface and a second light-exit concave surface, and a shared section having a light-exit shared surface. A tangent slope of the shared section where the light-exit shared surface is connected to the first light-exit concave surface is less than a tangent slope of the first biconcave section where the first light-exit concave surface is connected to the light-exit shared surface. A tangent slope of the shared section where the light-exit shared surface is connected to the second light-exit concave surface is larger than a tangent slope of the second biconcave section where the second light-exit concave surface is connected to the light-exit shared surface.

Light emitting module and image surveillance device thereof

Surveillance camera

An image surveillance device includes a casing, a heat dissipating cover, a partition, a lens module, and a light emitting module. The heat dissipating cover covers the casing and has a heat conduction sheet extending inward into the casing. The partition is disposed in the casing to divide an inner space of the casing into an upper space and a lower space. The lens module is disposed in the lower space for capturing images. The light emitting module is disposed on the heat conduction sheet and located in the upper space for emitting light out of the casing when the lens module captures the images. Heat generated by the light emitting module is conducted to the heat dissipating cover via the heat conduction sheet.

Growing community of inventors

Taipei, Taiwan

Chih-Chung Wang