摘要:
The invention is concerned with a small-format yet high-performance zoom optical system with a fewer lenses count, and an electronic system that incorporates it. The zoom optical system comprises, in order from its object side, a first lens unit G1 of negative refracting power, a second lens unit G2 of positive refracting power and a third lens unit G3 of negative refracting power, in which zooming is implemented by movement of at least the second lens unit G2 and the third lens unit G3, thereby varying a space between adjacent lens units. The negative first lens unit G1 is composed of one negative lens, the positive second lens unit G2 is composed of one positive lens, and the negative third lens unit G3 is composed of one negative lens. The negative lens in the third lens unit G3 is in a negative meniscus shape with a concave surface on its image plane side.
摘要:
A method for producing from one of the optical isomers (optical isomer I) of an amino acid represented by Formula (1):R—CH(NH2)—COOH (1), wherein R is defined in the specification, the other of the optical isomers (optical isomer II), said method comprising reacting a biological material which has an ability of converting said one of the optical isomers (optical isomer I) to said the other of the optical isomers (optical isomer II), the isomerism being on the basis of an assymetric carbon atom to which both of an amino group and a carboxyl group are bound and said ability being not inhibited seriously by an amino acid transferase inhibitor &bgr;-chloro-D-alanine, &bgr;-chloro-L-alanine or gabaculine, with said one of the optical isomers (optical isomer I).
摘要:
Pharmaceutical agents for inhibiting the production of 20-HETE which participates in constriction or dilation of microvessels in major organs such as the kidneys and the cerebral blood vessels, or participates in causing cell proliferation are provided. The present invention relates to hydroxyamidine compounds represented by the formula: wherein R1 represents a group represented by the formula: R2—(CH2)m— (wherein R2 represents a C3-8 cycloalkyl group, a C2-6 alkoxycarbonyl group, a C2-10 alkenyl group, a C2-6 alkynyl group, a substituted or non-substituted aryl group, or the like, and m is an integer of 1 to 8), a group represented by the formula: R3—A— (wherein R3 represents a hydrogen atom, a C1-6 alkoxy group, a C3-8 cycloalkoxy group, or the like, and A represents a straight-chain C2-10 alkylene group which may be substituted with a C1-6 alkyl group or a trifluoromethyl group), or a C3-8 cycloalkyl group, and X represents an oxygen atom or a sulfur atom, or pharmaceutically acceptable salts thereof, and relates to medicines including the same as active ingredients.
摘要:
The present invention provides a novel gene encoding a protein having an excellent catalyst ability for producing (S)-N-substituted cyclic imino acid represented by formula (2): and provides a novel method for producing (S)-N-substituted cyclic imino acid represented by formula (2) by an asymmetric hydrolization of the N-substituted cyclic imino acid ester represented by formula (1): in a manner of gene engineering technology utilizing the novel gene provided.
摘要:
There is an indicating device constituted so as to be apt to indicate the data such as the magnification ratio of an objective lens, the value of NA, the data or the like in the visual field of a microscope and at the same time to record these data in photograph. This indicating device is provided with a display means (17) able to indicate various sorts of data informations through the data processor (16) and polarizing prisms (10, 11) arranged between the objective lens (9), display means (17), photographing lens (14) and eyepiece (13) to divide the light bundle from the objective lens (9) and the light bundle from the data display means (17) respectively and to make them advance to the eyepiece (13) and photographing lens (14), and the data informations displayed on the display means (17) are imaged on the image forming face (12) inside the eyepiece (13) and on the dry-plate (15). This indicating device may use, instead of the above mentioned polarizing prism, the optical fiber bundle (19) arranged between the data display means (17) and eyepiece barrel (22) to image the data information displayed on the display means (17) on the image forming face (12) inside the eyepiece (13).
摘要:
A constant-speed scanning lens system comprising a first, second, third, fourth and fifth lens components, the first lens component being a positive meniscus lens arranged concave toward the incident side, the second lens component being a negative lens, the third, fourth and fifth lens components being positive meniscus lenses respectively arranged concave toward the incident side, the constant-speed scanning lens system having a small F number, wide field angle and compact size.
摘要:
According to one embodiment, a medium convey apparatus is provided with an oscillation unit, a cooling unit, a convey unit, a temperature detector and a controller. The oscillation unit applies oscillation to a thin medium as a to-be-conveyed target. The cooling unit cools the air around the thin medium. The convey unit conveys the thin medium. The temperature detector detects the temperature around the medium. The controller controls the cooling unit based on the temperature detected by the temperature detector.
摘要:
There is provided a high quality liquid crystal panel having a thickness with high accuracy, which is designed, without using a particulate spacer, within a free range in accordance with characteristics of a used liquid crystal and a driving method, and is also provided a method of fabricating the same. The shape of a spacer for keeping a substrate interval constant is made such that it is a columnar shape, a radius R of curvature is 2 μm or less, a height H is 0.5 μm to 10 μm, a diameter is 20 μm or less, and an angle α is 65° to 115°. By doing so, it is possible to prevent the lowering of an opening rate and the lowering of light leakage due to orientation disturbance.
摘要:
In an apparatus, a pile of sheets is mounted on a support base, and is brought into contact with a guide. A high-frequency vibration is applied to the sheets from a vibrating part which is pressed to the pile. A sheet on the uppermost surface of the pile is transferred by a feed roller. The guide has a guide end defining a guide entrance between the guide end and the feed roller, through which the sheets is passed. The guide end is arranged substantially in a virtual plane including a contact position at which the vibrating part is in contact with the uppermost surface of the pile, and substantially parallel with the sheets. A separation section for separating sheets from each other is arranged behind the entrance, and an air blow-off section for blowing air into the side of the pile is provided in the vicinity of the entrance.
摘要:
A zoom optical system that comprising: a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; and a third lens unit having a positive refractive power which are arranged in order from an object side, a space between the lens units being changed to perform variation of magnification, the first lens unit includes a negative lens, the second lens unit includes a positive lens and a negative lens in order from the object side, the third lens unit includes a positive lens, and an electronic equipment provided with the zoom optical system.