Abstract: An illumination optical system of a projector apparatus includes a rod lens which equalizes illuminance of illumination light incident on a micromirror device from lamps, and a plurality of light-shielding plates that shields unnecessary light not incident on the rod lens among the illumination light. The plurality of light-shielding plates is disposed on the incidence side of the rod lens such that each light-shielding plate is provided at a predetermined gap in an optical axis direction of the rod lens. Openings of each light-shielding plate are formed such that a light-shielding plate disposed on an emission side has a smaller passage area of illumination light than on an incidence side.

Abstract: An illumination optical system of a projector apparatus includes a rod lens which equalizes illuminance of illumination light incident on a micromirror device from lamps, and a plurality of light-shielding plates that shields unnecessary light not incident on the rod lens among the illumination light. The plurality of light-shielding plates is disposed on the incidence side of the rod lens such that each light-shielding plate is provided at a predetermined gap in an optical axis direction of the rod lens. Openings of each light-shielding plate are formed such that a light-shielding plate disposed on an emission side has a smaller passage area of illumination light than on an incidence side.

Abstract: A terminal device includes a first housing, a key attached to a cut portion in a corner of the first housing, a key support portion configured to support the key, the key support portion including a shaft portion having a rotation axis on a side of a side face of the corner and attached to a bearing portion provided in the first housing and a peripheral edge portion caught by a peripheral edge of the cut portion, a transmitting portion configured to transmit a predetermined pressing force to a switch provided on the substrate via the key support portion when the predetermined pressing force is applied to the key in a rotation direction determined by the rotation axis, and a second housing combined with the first housing to which the key and the key support portion are attached so as to store the transmitting portion, the substrate, and the switch.

Abstract: A key input device including a keyboard which includes a plurality of key switches including at least two adjacent key switches, and a stopper disposed between the two adjacent key switches and configured to inhibit one of the at least two adjacent key switches from receiving a pressing force when the other of the at least two adjacent key switches is pressed by a user.

Abstract: A terminal device includes a first housing, a key attached to a cut portion in a corner of the first housing, a key support portion configured to support the key, the key support portion including a shaft portion having a rotation axis on a side of a side face of the corner and attached to a bearing portion provided in the first housing and a peripheral edge portion caught by a peripheral edge of the cut portion, a transmitting portion configured to transmit a predetermined pressing force to a switch provided on the substrate via the key support portion when the predetermined pressing force is applied to the key in a rotation direction determined by the rotation axis, and a second housing combined with the first housing to which the key and the key support portion are attached so as to store the transmitting portion, the substrate, and the switch.

Abstract: Disclosed is an input pen for entering information into an input device by a handwriting input operation. The input pen includes: a grip, to be held by a user for a handwriting input operation, having a shape substantially resembling a flat plate; and a pointed tip continuous with the grip. The grip contains an axis aligned with a center axis of the pointed tip.