Abstract: An optical package having a removably attachable cover and a body is disclosed. The body comprises a ridge whereas the cover comprises a ridge opposing structure. The cover may be form-fitted onto the body defining therein a compartment for receiving an optical sensor. The optical sensor may receive light from an aperture located on the cover. The cover may be secured onto the body through an interlocking structure. Depending on the application, the optical package may further comprise a radiation source, and/or an additional compartment for the radiation source. The optical package may be suitable for navigation sensors, proximity sensors, ambient optical sensors or any other optical devices.

Abstract: An improved actuator button having components integrated therein which permit the single button to be operated in two distinct and mutually exclusive modes with each of the modes achieving respective separate functions. The improved actuator button advantageously incorporates a `press down` mode and a `slide` mode, which achieve separate functions with each operation of the modes. The features of the improved actuator button have general application in the manufacturing of electrical and electronic products. In particular, the improved actuator button has useful application in portable compact disk players (CD players) wherein the exclusively press mode operation of the actuator achieves the `open` function by opening the protective cover of the CD player, while the exclusively `slide` mode operation of the actuator achieves the `hold` function by preventing interruption of the currently played CD program.