Abstract: A high-performance dioptric reduction projection lens and projection exposure apparatus and projection exposure method using same. The projection lens includes six lens groups and has a positive negative positive negative positive refractive power arrangement. The third and fifth lens groups have overall positive refractive power and include at least three lens elements having positive refractive power. The fourth lens group has negative refractive power and includes at least three lens elements having negative refractive power. At least one lens element in either the fourth lens group or the fifth lens group includes an aspheric surface. The projection lens preferably satisfies at least one of a number of design conditions.

Abstract: A projection optical system is provided which forms an image of a first object onto a second object and includes, in order from the first object side:a first positive lens group G1 with a subgroup G-1p having at least two positives lenses;a second negative lens group G2 with a subgroup G-2n having at least three negative lenses;a third lens group G3 with a subgroup G-3p having at least three positives lenses and one negative lens;a four negative lens group G4 with a subgroup G-4n having at least three negative lenses;a fifth positive lens group G5 with a subgroup G-5p having at least five positives lenses and having a positive lens G-5g arranged closer to the second object side than the subgroup G-5p and having a concave surface facing the second object side. The projection optical system provides an optimal range for the focal length and the preferable range of the radius of curvature for the concave surface R5g of the positive lens G-5g.

Abstract: An objective lens system for a microscope has a high magnification and high numerical aperture. Corrections for various aberrations, and especially coma, can be made over a wide field of view. The system can be used as an objective lens system for a fluorescence microscope. The objective lens system contains a first lens group which has multiple lenses placed in sequence as counted from the object side. The first lens group has a positive focal power. A second lens group includes a first compound lens, prepared by cementing a negative meniscus lens with its convex surface facing the object side and a biconvex lens, and a second compound lens, prepared by cementing a biconcave lens and a biconvex lens. A third lens group has multiple lenses and a negative focal power. A change in aberration can be corrected for by moving the second lens group with respect to the first and third lens groups along the optical axis. The objective lens system meets certain prescribed conditions.

Abstract: In a printer server system in which a file server controls image data to be output by a printer server and information for performing queuing of a print command, when there is a request of an interrupt input job without passing through the file server from another client terminal while a job of a client terminal is being executed, a priority level for the job being executed and a priority level for the interrupt input job are compared with each other. The job being executed is interrupted when it has been determined that the priority level for the interrupt input job is higher than the priority level for the job being executed. A trigger command for output processing for the printer server from the client terminal which has provided the interrupt input job is accepted, and a corresponding image is output from the printer server in response to the trigger command.

Abstract: There is disclosed a chocolate containing disaturated monolinoleate and non-tempering type hard butter as its oil ingredients. A process for producing a rolled chocolate by rolling-up a chocolate containing disaturated monolinoleate and non-tempering type hard butter as its oil ingredients is also disclosed.

Abstract: There is disclosed a chocolate containing as its oil ingredients 10-85 wt % of di-saturated mono-unsaturated glycerides (S.sub.2 U) and 15-90 wt % of di-unsaturated mono-saturated glycerides (SU.sub.2) plus tri-unsaturated glycerides (U.sub.3), at least 35 wt % of the di-saturated mono-unsaturated glycerides (S.sub.2 U) being di-saturated mono-linoleate (S.sub.2 L). Chocolate-utilizing food containing this chocolate such as in frozen desserts and the like are also disclosed.