摘要:
An optical module and its manufacturing method are provided which are capable of forming an optical waveguide by making the most of characteristics of a material having small optical transmission loss and excellent machinability or processibility. The optical module includes an optical waveguide sheet having a first optical waveguide and an optical component having a second optical waveguide, wherein the optical component is disposed in an aperture portion in the optical waveguide sheet and an end face of a large diameter portion of a core layer in the second optical waveguide is formed so as to be disposed opposite to an end face of a core layer of the first optical waveguide so that the first optical waveguide and the second optical waveguide are optically coupled.
摘要:
Provided are a manufacturing method of an optical fiber base material and an optical fiber base material manufactured in the manufacturing method, the manufacturing method including: a process of combining at least two core base materials 70 by fusion-bonding to produce a single core base material; a process of fusion-bonding a pair of dummy glass rods 61 and 62 at both ends of the core base material 70 to produce a starting glass rod; a process of depositing, at an outer surface of the starting glass rod, glass particles generated by flame hydrolysis, to produce a porous base material 80; and a process of sintering and vitrifying, into transparent glass, the porous base material 80, to produce an optical fiber base material 310 that includes a core portion and a clad portion.
摘要:
A silver halide emulsion comprises silver halide grains 35% or more of the total projected area of which are tabular grains having a {100} plane as a main plane and having an average aspect ratio of 1.3 to 7.9 which have been prepared via at least nucleation and ripening procedures. The emulsion is characterized in that said ripening procedure is conducted with substantially no NH.sub.3 present in the system. In a preferred embodiment, the ripening procedure is followed by the addition of fine silver halide grains substantially free of screw dislocation defects and having a diameter of 0.15 .mu.m or less that causes crystal growth. The nucleation is effected by the simultaneous addition of a silver salt and a halide salt solution to a dispersant solution. The resulting nuclei have a Br.sup.- content of 60 mol % or more. Cl.sup.- is present in said dispersant solution in an amount of 10.sup.-5 mol/l or more before the simultaneous addition.
摘要:
A silver halide photographic material is disclosed, which comprises a support having thereon at least one silver halide emulsion layer, wherein the swelling amount of the hydrophilic colloid layers including the light-sensitive silver halide emulsion layer and a protective layer coated on at least one side of the support is not more than 10 .mu.m in thickness and at least 60% of the total projected area of the total silver halide grains in at least one silver halide emulsion layer includes tabular silver halide grains having a Cl.sup.- content of at least 20 mole %, a {100} plane as the major plane, a thickness of 0.35 .mu.m or less, and an aspect ratio (diameter/thickness) of at least 2, and further a developing process for developing the above silver halide photographic material with a developer containing ascorbic acid or the derivative thereof is disclosed.
摘要:
A method for preparing silver halide emulsion grains by a crystal growth method comprising feeding fine silver halide grains to a reaction vessel containing seed crystals of a silver halide emulsion and dissolving the fine grains in the reaction vessel by Ostwald ripening to grow said seed crystals, wherein the fine grains are non-twinned crystal fine grains having substantially no twinning plane.
摘要:
The present invention can reduce the warping of the printed circuit board of a display device. This advantage can be obtained by providing a display device which includes a display element; a printed circuit board which is arranged in a state that the printed circuit board extends over a peripheral portion of the display element; and a plurality of flexible printed circuit boards which connect the display element and the printed circuit board, wherein the printed circuit board is connected with the plurality of flexible printed circuit boards using a plurality of connection terminal groups corresponding to the plurality of flexible printed circuit boards, dummy terminal groups are provided between the plurality of connection terminal groups, and the dummy terminal groups are arranged on a side close to the display element side and a side remote from the display element side in the direction orthogonal to the extension direction of the printed circuit board in a state that respective dummy terminal rates are made close to each other.
摘要:
A silver halide emulsion comprises at least a dispersion medium, water and a silver halide grain, wherein grains occupying from 40 to 100% of the total projected area of said gains have an AgI content of 85 to 100 mol %, a single kind of outer shape except for size and the equivalent-circle projected diameter of from 0.002 to 20 μm.
摘要:
There is disclosed a silver halide emulsion that comprises at least a dispersion medium and silver halide grains, wherein 60% or more of the total projected area of the silver halide grains is occupied by tabular grains having an epitaxial junction, which grains each have a {100} face as a main plane and an aspect ratio (diameter/thickness ratio) of from 2.0 to 100; and wherein a right-angled parallelogram enclosed with {100} side faces at the main plane edges on the portion of the tabular grains, which portion does not have the epitaxial junction, or if the tabular grains have at least one corner broken off, a right-angled parallelogram formed by extending the {100} side faces at the main plane edges, has a slenderness side ratio (a ratio of the length of the long side to that of the short side) of 1 to 6; and wherein the tabular grains have the epitaxial junction with a silver halide protrusion that has a higher solubility than the portion of the tabular grains, which portion does not have the epitaxial junction. There is also disclosed a silver halide emulsion the same to the above, except that (A) the tabular grains have no epitaxy but crystal defects for anisotropic growth and an aspect ratio of 2.0 or more, and (B) a six-coordinate dopant capable of forming a shallow electron trap is present in a crystal lattice. The silver halide emulsions are high in sensitivity and image quality, and they are excellent in suppression of dependency on a processing solution pH and in preservability of latent image, and they can be utilized in silver halide color photographic light-sensitive materials.
摘要:
A silver halide emulsion is described, which comprises at least a dispersion medium and silver halide grains, wherein from 40 to 100% of the total projected area of the entire silver halide grains are occupied by tabular grains having a thickness of from 0.01 to 0.50 .mu.m, an aspect ratio (diameter/thickness) of from 1.6 to 500, and main planes of {100} faces, and the aspect ratio of a right angled parallelogram surrounded by edge sides of {100} face of the tabular grains or a right angled parallelogram formed by extending the edge sides (long side length/short side length) is from 1 to 8, and the tabular grains are tabular grains formed by the adsorption of compound A.sup.0 represented by formula (Z.sup.1), (Z.sup.2), (Z.sup.3) or (Z.sup.4) onto silver halide grains:B.sup.1 --S--B.sup.2 (Z.sup.1)B.sup.1 --S(O)--B.sup.2 (Z.sup.2)B.sup.1 --S(O.sub.2)--B.sup.2 (Z.sup.3)B.sup.1 --S.sup.+ (R.sup.0)--B.sup.2 .multidot.Y.sub.0.sup.-(Z.sup.4)wherein B.sup.1 represents a residue having two or more repeating units of polyvinyl alcohol in B.sup.1 ; --S-- represents a thioether group; B.sup.2 represents a residue having two or more repeating units of polyacrylic acid or polyacrylamide; R.sup.0 represents an alkyl group having from 1 to 20 carbon atoms, an aryl group, or an amino group; and Y.sub.0.sup.- represents an anion.
摘要:
In a silver halide color photographic photo-sensitive material comprising a reflective support having thereon photographic structural layers comprising one or more silver halide emulsion layers, pH of a coating of the silver halide color photographic photo-sensitive material ranges from 4.0 to 6.5 and at least one of the silver halide emulsion on layers contains at least one mercapto heterocyclic compound and tabular silver halide grains having {100} planes was main planes and having a silver chloride content of not less than 80 mol %, the silver halide grains containing at least one selected from the group consisting of metal complexes of Fe, Ru, Re, Os, Rh and Ir.