Abstract: A location device for holding a number of probes is provided. The probes include a body, a first needle and a second needle respectively and coaxially disposed at opposite ends of the body. The location device includes a first support structure, a second support structure overlapping the first support structure and a number of through holes running through the first support structure and the second support structure. Each of the through holes includes a locating hole, a first aperture and a second aperture respectively disposed at opposite ends of and communicated with the locating hole and configured for respectively receiving the first, second needle of the probe. The first, second needle respectively extend out of the first, second aperture. The probes are clamped by the first, second support structure and located by the locating hole of the support device.

Abstract: A locating block holding device comprises a fixture floor, a magnet and a locating block. The fixture floor defines a channel and a coaxial receiving groove formed underneath the channel thereof, the receiving groove communicating with the channel with a shoulder formed between the receiving groove and the channel. The magnet is received in the receiving groove. The locating block, made from magnetic material such that the magnet is capable of firmly and stably holding the locating block on the shoulder in the channel, is disposed on the shoulder in the channel and above the magnet.

Abstract: A camera module includes a circuit board, an image sensor, a lens module, and a filter. The image sensor is mounted on the circuit board. The lens module is mounted on the circuit board and receives the image sensor therein. The lens module includes a barrel with at least one lens received therein and a holder. The holder defines a cavity. The cavity includes a first receiving portion, with the lens module received therein, and a second receiving portion, with the image sensor received therein. The filter covers an inner surface of the holder bounding the second receiving portion for trapping dust entered into the second receiving portion.