Abstract: A topper for an entertainment machine (1) is provided. The topper includes a display comprising a screen (9) arranged such that an image projected onto one side of the screen may be viewed from the opposite side of the screen. The invention enables a display of a gaming machine or associated topper to be provided by a back projected image. This enables the display content to be changed without having to physically change the screen or any associated artwork. Screens on to which images can be back projected are much less costly than electronic displays and can easily be provided in any desired shape. A further topper for an entertainment machine is also provided, the topper including a display comprising a screen (9) onto which an image can be projected, and a projector (11) arranged to project an image onto the screen.

Abstract: A push button assembly comprises a button (1) with an actuating structure (5) movably mounted within a housing (2) for operation of a switch (20). The housing (2) provides a frame (18) comprising side wall structures (16), with a flange structure (15) mounted at a top open end thereof, The axial length of the housing (2) is shorter than the horizontal length of the side wall structures (16), resulting in a short push button assembly. The button (1) is illuminable via a lamp (25) which is provided on a carrier strip (22), the switch (20) being mounted on a body (19), both of which can be removably mounted substantially within the confines of the housing (2), with respective connection terminals (23, 21) projecting outward thereof, the assembly therefore occupying minimal space behind a panel when mounted on such a panel of an amusement or gaming machine where space may be restricted.

Abstract: A push button switch has a housing, a switch actuator movably supported by the housing, an organic light emitting diode display supported by the housing in a position to be viewable by a user of the push button switch, and a switch supported by the housing so as to operable by the switch actuator when the switch actuator moves relative to the housing. A controller circuit is electrically coupled to the push button switch so as to control the organic light emitting diode display in response to operation of the switch.

Abstract: A lamp assembly, particularly for an entertainment machine, is made from one or more LEDs soldered to a printed circuit board (pcb). The pcb has an edge region with contacts which is constructed to fit into a lamp holder. The lamp assembly can be used in substitution for a conventional wedge-based push-fit bulb. The pcb edge region may be constructed so that it can only fit one way round in the lamp holder, or the pcb may include circuitry which allows connection either way round (either polarity).