摘要:
A multiple discharge lamp lighting device in which lamp current of discharge lamps is equalized by using a circuit structure having transformers on both sides of the discharge lamps and in which the number of parts can be reduced. A multiple discharge lamp lighting device 10 according to the present invention includes the same number of first transformers TA1 to TAn as the number of discharge lamps La1 to Lan and one second transformer TB. One end of a secondary winding (e.g., Ns1) on the non-grounded side of the first transformer (e.g., TA1) is connected to one end of one corresponding discharge lamp (e.g., La1). One end of a secondary winding Ws on the non-grounded side of the second transformer TB is connected to a second end of each of the discharge lamps La1 to Lan. The potentials of the secondary windings Ns1 to Nsn on the non-grounded side of the first transformer TA1 to TAn and the potential of the secondary winding Ws on the non-grounded side of the second transformer TB are mutually changed with inverse phases.
摘要:
A self-lubricating bearing comprising a self-lubricating liner and a bearing element having a counterface in sliding contact with the liner. The bearing element is of a titanium alloy having a nitride diffusion layer at the counterface, and the counterface has a surface roughness less than 18 nm.
摘要:
A spread illuminating apparatus (22) includes a plurality of lighting units (12) which are arranged two dimensionally, and each of which includes light sources (14) and a light conductor plate (16) which has a light inlet surface (16a) having the light sources (14) disposed thereat, an opposite end surface (16b) opposite to the light inlet surface (16a), and a major surface (16c) defined as a light outlet surface for the lighting unit (12), wherein an overhang (24) is formed integrally with the light conductor plate (16) so as to protrude from the opposite end surface (16b), and wherein every two adjacent lighting units (12-1, 12-2) of the plurality of lighting units (12) are jointed to each other such that the light outlet surface side faces of the light sources (14) of the lighting unit (12-1) are covered by the overhang (24), and wherein a light diffusing means (25) is disposed at a side surface of the overhang (24) positioned toward the light outlet surface (16c).
摘要:
A spread illuminating apparatus (22) includes a plurality of lighting units (12) each of which includes a light conductor plate (16) having a light outlet surface and a light inlet surface, and a light source (14) disposed at the light inlet surface, and which are arranged two dimensionally. The spread illuminating apparatus (22) further includes a plurality of light transmissive members (24) each of which is provided with means to reflect and diffuse light from the light source (14), and each of which is disposed at the light outlet surface side of the lighting unit (12). Leakage light from the light source (14) is reflected and disused by the light transmissive member (24) thereby reducing stray light, and at the same time the light transmissive member (24) receives the leakage light and emits it from the outlet surface as effective light thereby enhancing the overall brightness in a uniform manner.