摘要:
A scanning objective lens for scanning on an observation target with light emitted from an exit end face of an optical fiber moving on a curved plane formed to be convex on an objective lens side, including first and second lens groups each having a positive power, wherein the first lens group and the second lens group are arranged in this order from the optical fiber's exit end face side, and the scanning objective lens satisfies conditions: 0.60
摘要:
An endoscope illumination optical system includes a surface light source, a positive first lens element, a positive second lens element, in this order from the surface light source.The endoscope illumination optical system satisfies the following conditions: 0.40
摘要翻译:内窥镜照明光学系统从表面光源依次包括表面光源,正的第一透镜元件,正的第二透镜元件。 内窥镜照明光学系统满足以下条件:<?in-line-formula description =“In-line formula”end =“lead”?> 0.40 <?in-line-formula description =“In-line formula”end =“lead”?> 0.40 <0.5.D.the <0.56(2)<? in-line-formula description =“In-line Formulas”end =“tail”?>其中f:正的第一透镜元件和正的第二透镜元件的组合焦距; D:表面光源的最大直径; R 1:正的第一透镜元件的面向面光源的第一表面的曲率半径; R 2:正的第一透镜元件的第二表面的曲率半径面向要被照射的表面; n 1:正的第一透镜元件的折射率; d 1:正的第一透镜元件的厚度; θ表示定义为(1 + 0.85d 1 / R 2)(1-1 / n 1)/ R 1 -1.05 / R 2的角度。
摘要:
A panel instrument apparatus of reduced size, comprising a printed circuit board on which light emitting elements and switches are mounted, and a panel cover to the rear of which the front face of the printed circuit board is attached. The panel cover comprises reflecting holes arranged in positions corresponding to the light emitting elements on the printed circuit board to guide light from the light emitting elements to the surface of the panel cover; and furthermore comprises resilient links and coupled thereto keys which are located in positions corresponding to the switches on the printed circuit board.
摘要:
An automatic mask cutting/drawing apparatus for preparing a mask film and for forming both positioning holes and a desired image mask pattern or a drawing of a desired line image includes a table for supporting a film material thereon, a first carriage movable along the table surface in a first direction, a second carriage movable on the first carriage in a second direction, first and second moving elements for respectively moving the first and second carriages in their respective directions, a vertically movable drawing element on the second carriage for drawing a desired image pattern on the film material, and a vertically movable cutter element adjacent the drawing element for cutting the film material. Both the drawing element and the cutter element are selectively activatable to form the positioning holes, the image mask pattern, or the drawing as desired and in accordance with commands which are inputted to the apparatus.
摘要:
A single sheet is transported from a tray where sheets are stored to the table of a coordinate plotter by a movable device which lifts the sheet by suction from the tray and moves the attached sheet part way to a final position on the table. The sheet is released; the device retreats and then again lifts the same sheet by suction and transports the sheet to a final position on the table.
摘要:
An endoscope objective lens system includes a negative front lens group, a diaphragm, and a positive rear lens group, in this order from the object. The negative front lens group includes one lens element, or a plurality of non-cemented lens elements; and the most object-side lens element is constituted by a negative lens element. The positive rear lens group includes a plurality of non-cemented lens elements; and at least one negative lens element is provided in the positive rear lens group. The endoscope objective lens system of the present invention satisfies the following conditions: −1.45 0); and f(−): the focal length of the negative lens element of the positive rear lens group.
摘要:
Disclosed herein is a coordinate plotter with at least one automatic punching device, adapted to draw a desired picture by shifting a table and an autographic head, which is directed downwardly from a point right above the table, in the X-axis and Y-axis directions respectively. The at least one automatic punching device is provided in adjacent to a side edge parallel to the moving direction of the table and at a height equal to the upper surface of the table so as to form a positioning hole through a sheet laid on the table for drawing the desired picture thereon. The specification also discloses a method and apparatus for conveying sheets to the coordinate plotter.
摘要:
A semiconductor laser having a lower clad layer, an active layer, a first upper clad layer and a dry-etching stop layer, all the layers being successively laminated on a compound semiconductor substrate. The semiconductor laser further includes (i) a second upper clad layer, in the form of a ridge, formed above the first upper clad layer, (ii) an etching stop layer present only between the dry-etching stop layer and the second upper clad layer, and (iii) block layers formed at sides of the second upper clad layer.
摘要:
An endoscope objective optical system includes a negative first lens group, a positive second lens group, and an imaging device, in this order from the object. Zooming is performed by moving the positive second lens group in the optical axis direction, and the endoscope objective optical system satisfies the following condition: m2T
摘要:
Plural images and plural register marks are printed on a photosensitive material with an original plate including an original image and register marks. Two kinds of masks are prepared before the printing: a photocomposing mask for masking the original image and the register marks on the original plate, and an exposing-out mask for masking the images and the register marks on the photosensitive material. First, the plural images and the register marks are printed on the photosensitive material while overlaying the original plate with the photocomposing mask by a photocomposer. Secondly, the photosensitive material is exposed with the exposing-out mask overlaid. Even if the plural images complementary are to each other, the total procedure can be performed easily while using the two masks. The two masks can be fabricated easily on the basis of the shape of the original image and of the positions and orientations of the plural images on the photosensitive material.