摘要:
A method of photolithography including coupling a first aperture to a lithography system, then performing a first illumination process to form a first pattern on a layer of a substrate using the first aperture, thereafter coupling a second aperture to the lithography system, and performing a second illumination process to form a second pattern on the layer of the substrate using the second aperture. The first aperture includes a first pair and a second pair of radiation-transmitting regions. The second aperture includes a second plate having a third pair and a fourth pair of radiation-transmitting regions.
摘要:
A lens selection device for placing any one of three or more magnification lenses in an operative position where its optical axis aligns with a respective reference axis, a selected lens being shifted along a fixed path from a retracted position to the operative position thereof by separate drive means numbering one less than the quantity of the lenses. In the case of three lenses, for instance, a first drive means is used to shift a first lens, a second drive means is used to shift a second lens, and a follower means coupled with a third lens is used to shift it to its operative position when the first (or the second) lens is driven to its retracted position.
摘要:
An optical system is disclosed for substantially doubling the capacity of a photocopying apparatus or the like. It provides alternative modes of operation; adjacent imaging of adjacent objects or double imaging of a single object. In the adjacent imaging mode, a single projection lens projects adjacent images of two adjacent objects in a straightforward way. In the alternative double imaging mode, a pair of projection lenses projects twin images of a single object along "parallel" optical paths. In the double imaging mode, a field stop is included to block light from the vacated half of the object station. The field stop is located near the first lens on its object side.
摘要:
This invention is directed to an assembly for adjustably mounting the optical system of a reproduction apparatus, having an optical system for projecting a light image of information to be reproduced on to a recording medium, relative to a frame of the reproduction apparatus. The adjustable mounting assembly comprises at least one stud supported by the frame and selectively moveable relative thereto. The optical system is clamped to at least one stud for movement therewith, the clamping mechanism including an elastomeric member for substantially isolating the optical system from any shock imparted to the frame.
摘要:
A copying apparatus having a stationary or movable original to be copied, a lens movable parallel to the original and perpendicular to its optical axis, a photosensitive medium movable parallel to the lens and a flash lamp device for illuminating the entire surface of the original wherein movement of the elements satisfies the condition ##EQU1## where V.sub.1 is the velocity of movement of the photosensitive medium and V.sub.1 ' the velocity of movement of the light image at the surface of the medium.
摘要:
Apparatus for shifting a lens carriage including a variable magnification pancratic lens assembly having a plurality of relatively movable optical elements. The lens carriage is mounted to move a first lens element to a plurality of discrete positions along a travel path (oblique to the optical axis established at the 1:1 magnification ratio) for maintaining registration of the light image projected by the lens assembly in the image plane when the image-to-object distance is fixed. A second element of the lens assembly is carried by the first element and is longitudinally movable to a plurality of discrete positions relative to the first element. An arm is positioned in the path of movement of the second lens element to engage the second element to effect particular longitudinal movement thereof relative to the first lens element as the carriage is moved. A series of stops interact with the lens elements to establish specific optical relationships therebetween at discrete positions of the second lens element and discrete positions of the first lens element to provide the varying magnifications.
摘要:
A copying machine which can image the upper side or the underside of an original onto a photosensitive surface. The original is placed onto a copyboard or between two copyboards, and the projection system for integral imaging of the upper side or the underside of such original comprises two units one of which images the upper side and the other of which images the underside of the original. A switchover device, which may constitute a component of one of the projection units, is provided to select that side of an original which is to be imaged. Alternatively, the switchover device activates the lamps for illumination of the upper side or the underside of an original.
摘要:
A photocomposing apparatus for positioning of an optical exposure system so that different size originals supported in the object plane of the system can be recorded within a predetermined format upon a sensitized recording medium supported in the image plane of the system. The optical system is arranged so that movement of the system causes an image of the original to be either minified or magnified at the image plane at the operator''s option. A light image of the outer margins of the desired format is projected back through the optical system thereby presenting to the operator an outline at the object plane of the area upon the original that will be recordable within the format. The original is then placed over the image outline and the optics are adjusted so that the image encompasses the original to be reproduced.
摘要:
An electrophotographic copier/duplicator having a 17".times.11" wide endless photoconductor includes single imaging apparatus for forming and processing a single 17".times.11" image at a time, within a 17".times.11 " image frame of its photoconductor, and dual imaging apparatus for simultaneously forming and processing two 8.5".times.11" images at a time, within a 17".times.11" image frame of such photoconductor.