Abstract: The present invention generally relates to an optical projecting system having a light generating means, a light splitting and synthesizing means, a beam polarization converter, a red light reflective crystal panel, a green light reflective crystal panel, a blue light reflective liquid crystal panel and a projecting lens. The beam polarization converter polarizes lights to a specific polarization distribution. Further the light splitting and synthesizing means splits the polarized light to three beams with different colors respectively. Thus, three different color beams are modulated by three reflective liquid crystal panels to produce three color projecting beams. After the light splitting and synthesizing means synthesizes the color projecting beams, the synthesized projecting light is emitted out via the projecting lens.

Abstract: The invention relates to a liquid crystal display projector with a lens protecting device capable of protecting and positioning lens of liquid crystal display projector. The lens protecting device of the invention comprises a cover, a top housing, a bottom housing, an actuating device, a plurality of springs and a mirror, where the lens is secured in the top housing and the actuating device also is connected to the top housing. Moreover, the mirror is located in the cover, and the top housing and the bottom housing are connected to each other by said springs. Further, the cover can be connected to the top housing or the projector with at least one hinge and projection of the projector is adjusted by only rotating the cover around the hinge. When the top housing is gradually covered by the cover, the actuating device will touch the top housing and deform these springs such that the top housing is located into the LCD projector and the lens is located in the protecting position.

Abstract: A swivel plate device has a base plate, a rotating plate disposed on the base plate, and a cover covering the rotating plate. The base plate has a center hole, an annular groove, an annular protuberance, and positioning holes. A chain-shaped ring has round holes. A plurality of balls are inserted in the round holes. The rotating plate has a central through hole, a plurality of oblong holes, an annular recess, an annular protrusion, an annular channel and a post. A rivet passes through an annular bearing, the central through hole, and the center hole. A pillar is disposed on the rivet. A spring has a first end hook hooking the pillar and a second end hook hooking the post. A rim of the cover is inserted in the annular recess. The chain-shaped ring is inserted in the annular groove and the annular channel.

Abstract: A plastic squeeze container including a fluid container body having a neck and a side notch near the neck, a cap covered on the neck of the fluid container body and having side notch and a guide tube in the side notch, and a guide block fitted into the side notch of the container body and the side notch of the cap and turned about an axis on the cap between the close position in which the guide tube is closed to stop the fluid, and the open position in which the guide tube is opened to guide the fluid from the container body to the spout at one end of the guide block.