Abstract: A stable isotope-labeled indole carboxylic acid compound represented by Formula (I) is provided. In Formula (I), X1 to X8 are each independently C or 13C; Y is N or 15N; M is H, Na, K, Li, CH3, or C2H5; R1 is H or D; R2 is H, CH3, 13CH3, C2H5, or 13C2H5; R3 is H, CH3, 13CH3, C2H5, or 13C2H5; R4 is H or D; and R5 is H or D.

Abstract: In a spherical lens surface processing method, a lens surface is ground to a spherical surface by forming a contact state in which a rotating cup-shaped grinding stone is placed in contact with the lens surface and a sphere center oscillation state in which the cup-shaped grinding stone oscillates along the lens surface centered on a sphere center. In the sphere center oscillation state, the distance from the center of the sphere center oscillation to the contact point of the cup-shaped grinding stone with the lens surface is set to be the same as the radius of the spherical surface. The oscillation width of the sphere center oscillation is set so that the contact point of the cup-shaped grinding store with the lens surface can move from one peripheral edge of the lens surface past the lens center on the lens surface to the other peripheral edge.

Abstract: In a spherical lens surface processing method, a lens surface is ground to a spherical surface by forming a contact state in which a rotating cup-shaped grinding stone is placed in contact with the lens surface and a sphere center oscillation state in which the cup-shaped grinding stone oscillates along the lens surface centered on a sphere center. In the sphere center oscillation state, the distance from the center of the sphere center oscillation to the contact point of the cup-shaped grinding stone with the lens surface is set to be the same as the radius of the spherical surface. The oscillation width of the sphere center oscillation is set so that the contact point of the cup-shaped grinding store with the lens surface can move from one peripheral edge of the lens surface past the lens center on the lens surface to the other peripheral edge.

Abstract: According to this lens-centering method, a state in which a lens is sandwiched at prescribed pressing force between a lens holder and a lens processing dish is brought about. Next, the lens-processing dish is rotated at slow speed about a rotation axis line that passes through the center and the spherical center of the lens-processing surface thereof, and is made to oscillate at a slight angle about the spherical center of the lens-processing surface as the center of oscillating action. The spherical center of a first lens spherical surface of the lens is guided to the spherical center of a lens-retaining surface of the lens holder, and the spherical center of a second lens spherical surface is guided to the spherical center of the lens-processing surface. A lens mounted in the spherical center-type processing machine can be set to an accurately centered state thereby.

Abstract: According to this lens-centering method, a state in which a lens is sandwiched at prescribed pressing force between a lens holder and a lens processing dish is brought about. Next, the lens-processing dish is rotated at slow speed about a rotation axis line that passes through the center and the spherical center of the lens-processing surface thereof, and is made to oscillate at a slight angle about the spherical center of the lens-processing surface as the center of oscillating action. The spherical center of a first lens spherical surface of the lens is guided to the spherical center of a lens-retaining surface of the lens holder, and the spherical center of a second lens spherical surface is guided to the spherical center of the lens-processing surface. A lens mounted in the spherical center-type processing machine can be set to an accurately centered state thereby.

Abstract: A spherical core type lens grinding device (1) performs an operation wherein a dish-shaped grindstone (8) provided with a spherical grindstone surface (8a) which is equipped with diamond abrasive grains, is pressed against a surface-to-be-ground (7a) of a lens blank (7) to be ground, and wherein the dish-shaped grindstone (8) is rotated and is simultaneously swung, resulting in said surface-to-be-ground (7a) being ground to a spherical surface. In an initial-stage grinding process, grinding is performed at first processing pressure and first rotational speed. In an intermediate-stage grinding process, grinding is performed at second processing pressure and second rotational speed. In a last-stage grinding process, grinding is performed at third processing pressure and third rotational speed. The second processing pressure is a pressure at which the spherical grindstone surface (8a) can bite into the lens blank (7).

Abstract: A lens processing device (1) is adapted such that a lens (11) is sucked and held by a lens holder (12) rotatably and rockably supported on the front end of a lens holder shaft (13) through a pivot bearing mechanism (14) and then such that a lens surface (11a) is processed by moving the lens (11) and a lens processing tool (31) relative to each other with the lens processing tool (31) pressed to the lens (11). The lens (11) can be moved along a desired trajectory on a vertical plane containing a Z-axis and an X-axis, which are perpendicular to each other, by controlling feeding of the lens holder (12) in the Z-axis and X-axis directions by means of a Z-axis movement mechanism (19) and an X-axis movement mechanism (15). Thus, the lens surface (11a) can be processed with the lens (11) horizontally pressed to a circular arc-shaped processing surface (31a) of the lens processing tool (31).

Abstract: A silver halide color photographic photosensitive material having, on a support, at least one layer of a blue sensitive emulsion layer unit containing a yellow color forming coupler, a green sensitive emulsion layer unit containing a magenta color forming coupler, and a red sensitive emulsion layer unit containing a cyan color forming coupler, wherein 70% or more of the projection area of the entire silver halide grains has at least one layer of a silver halide photographic emulsion layer containing silver halide grains satisfying the following (a) to (c), and (1) the photosensitive material contains at least one inter-image effect providing layer, or (2) the photosensitive material contains a compound represented by the following Formula (I): (a) the material comprises a tabular silver halide host grain with an aspect ratio of 5 or more having two principal surfaces parallel with each other and a protrusion portion of silver halide epitaxially joined onto the surface of the tabular silver halide host grain,

Abstract: A silver halide color photographic photosensitive material having, on a support, at least one layer of a blue sensitive emulsion layer unit containing a yellow color forming coupler, a green sensitive emulsion layer unit containing a magenta color forming coupler, and a red sensitive emulsion layer unit containing a cyan color forming coupler, wherein 70% or more of the projection area of the entire silver halide grains has at least one layer of a silver halide photographic emulsion layer containing silver halide grains satisfying the following (a) to (c), and (1) the photosensitive material contains at least one inter-image effect providing layer, or (2) the photosensitive material contains a compound represented by the following Formula (I): (a) the material comprises a tabular silver halide host grain with an aspect ratio of 5 or more having two principal surfaces parallel with each other and a protrusion portion of silver halide epitaxially joined onto the surface of the tabular silver halide host grain,

Abstract: A silver halide color photosensitive material comprising a 1H-pyrazolo[3,2-c]-1,2,4-triazole type coupler having, in its molecule, at least one substituent represented by the following general formula (I): wherein R1 represents a substituent; m represents an integer of 0 to 4; and R2 represents an alkyl group, alkenyl group or aryl group.

Abstract: A silver halide color photosensitive material comprising a 1H-pyrazolo[3,2-c]-1,2,4-triazole type coupler having, in its molecule, at least one substituent represented by the following general formula (I): 1

Abstract: A silver halide color photographic lightsensitive material comprises a support and a silver halide emulsion layer.

Abstract: A silver halide color photographic lightsensitive material comprising at least one photosensitive silver halide emulsion layer on a support, wherein the emulsion layer contains a magenta coupler represented by formula (M-1) below: wherein R1 represents a substituted or nonsubstituted alkyl group, each of L1 and L2 independently represents a substituted or nonsubstituted alkylene group, or substituted or nonsubstituted arylene group, in —L3—G, L3 represents —NH—SO2— or —SO2—NH—CO— (in these representations, bonding direction is not defined) and G represents a substituted or nonsubstituted alkyl group or substituted or nonsubstituted aryl group, alternatively —L3—G represents —COOH or OH, X represents a hydrogen atom or a group which splits off when coupling with an oxidized form of a developing agent, n represents 1 or 2, when L2 is an alkylene group, or n represents an integer from 1 to 5, when L2 is an arylene group, an

Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, said at least one emulsion layer containing a magenta coupler represented by formula (M-1): where R1 represents a substituted or unsubstituted alkyl group, each of L1 and L2 independently represents a substituted or unsubstituted alkylene group, or a substituted or unsubstituted arylene group, and A represents a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkyl group, with the proviso that A is neither a 2-octyloxy-5-tert-octylphenyl group nor a 2-(4-methylphenoxy)ethoxy-5-tert-octylphenyl group.

Abstract: A silver halide color photographic lightsensitive material includes at least one emulsion layer on a support. At least one of the emulsion layers contains a coupler represented by formula (1) below and a coupler represented by formula (2) below at a molar ratio of 1:9 to 9:1. In formulas (1) and (2), each of R1, R2, R3, and R4 independently represents a hydrogen atom or a substituent. Each of X1 and X2 represents a hydrogen atom or a group capable splitting off by coupling with the oxidized form of a developing agent. At least one of X1 and X2 is a hydrogen atom.

Abstract: A silver halide color photographic lightsensitive material comprising at least one photosensitive silver halide emulsion layer on a support, wherein the emulsion layer contains a magenta coupler represented by formula (M-1) below: 1

Abstract: A silver halide color photographic lightsensitive material comprises a support and a silver halide emulsion layer.

Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, said at least one emulsion layer containing a magenta coupler represented by formula (M-1): 1

Abstract: A silver halide color photosensitive material is disclosed, which has on a support at least one photosensitive silver halide emulsion layer, wherein at least one nondiffusible compound represented by the following formulas (I), (I-1), or (I-2) is contained to inhibit generation of color stain and color fog and to ensure excellent keeping quality: ##STR1## wherein Y.sup.1 represents atoms completing a phosphorus-containing heterocyclic ring; and ##STR2## wherein R.sup.1 represents an aryl group or a heterocyclic group; R.sup.2 represents an alkyl group, a cycloalkyl group, an aryl group (formula (I-2)), a heterocyclic group (formula CI-2)), an alkoxy group or an aryloxy group; A.sup.1 and A.sup.2 each represent a hydrogen atom or a hydrolyzable group; G represents a carbon atom or a phosphorus atom; X represents an oxygen atom or a sulfur atom; and R.sup.3 represents an alkyl group, a cycloalkyl group, an aryl group, or a heterocyclic group.

Abstract: A silver halide color photographic material is disclosed, wherein it comprises a support having thereon one or more constituent layers including at least one silver halide emulsion layer, wherein at least one hydrophilic colloid layer of said constituent layers contains a coupler represented by the following formula (M) or formula (I) and at least one hydrophilic colloid layer of said constituent layers contains a compound represented by the following formula (H): ##STR1##