摘要:
A microscope examination apparatus is provided that includes a light source for emitting excitation light or illumination light to a specimen placed on a stage; an objective lens opposing the stage and capable of focusing fluorescence or reflected light from the specimen; an image-forming lens for forming an image of the specimen obtained by the objective lens; and an image-capturing unit for capturing the image of the specimen forming by the image-forming lens, wherein a plurality of the objective lenses having different magnifying powers is provided, and an objective-lens switching mechanism for switching among the objective lenses is provided, and wherein a plurality of the image-forming lenses having different magnifying powers is provided, and an image-forming-lens switching mechanism for switching among the image-forming lenses is provided.
摘要:
A transmission illumination apparatus for a microscope has an optically transparent sample mount plate on which a sample is mounted, a surface light source that projects substantially uniform illumination light toward the sample mount plate, and a light orientation member that restricts diffusion of the illumination light in relation to at least one direction.
摘要:
A piston-type compressor has a plurality of cylinder bores, each of which receives a piston assembly. Each piston assembly reciprocates between a top dead center and a bottom dead center in each cylinder bores. Each piston assembly includes a piston and a piston ring. A first groove is formed on an outer peripheral surface and at about a first end of the piston. The piston ring, which has a truncated cone-shape is inserted into the first groove, such that a wider edge of the piston ring opens toward a piston skirt portion of the piston and a narrower edge of the piston ring abuts a bottom surface of the first groove. A second groove is formed on an interior wall of the cylinder bore, and extends along an axial line between a crank-chamber-side end of the cylinder bore and about an end of bottom dead center position.
摘要:
A cross-sectional area calculation section calculates a cross-sectional area of a subject as physical quantity with respect to a size of the subject, and an NEC calculation section calculates a noise equivalent count NEC as physical quantity for evaluating an image. The C-NEC calculation section calculates a noise equivalent count per unit area C-NEC as physical quantity for evaluating an image as per size of the subject in accordance with the cross-sectional area of the subject calculated in the cross-sectional area calculation section and the noise equivalent count NEC calculated in the NEC calculation section. Accordingly, the noise equivalent count per unit area C-NEC is calculated as noted above, whereby an index may be determined that is independent of the cross-sectional area of the subject in evaluating the image.
摘要:
An optical apparatus minimizes autofluorescence and stray light as well as leakage of excitation light and efficiently utilizes illuminating light from a fluorescence illumination optical system to allow observation of a bright fluorescence image. An observation apparatus has an objective, an observation optical system unit including a variable magnification optical system, and an imaging optical system unit including an imaging lens and an eyepiece. A fluorescence illumination apparatus, which is provided separately, is removably attached to the observation apparatus. The fluorescence illumination apparatus has a light source, a collector lens unit, and a reflecting member placed between the objective and the observation optical system unit at a position displaced from the optical axis of the objective to make light from the light source incident on the objective. An excitation filter is provided between the light source and the reflecting member. An optical member for selectively transmitting fluorescent light emitted from a sample is placed between the objective and the observation optical system unit.
摘要:
Even when the magnifying power is reduced, an image can be obtained at high resolution without significantly reducing the numerical aperture, and examination accuracy is improved. There is provided a microscope examination apparatus including a light source for emitting excitation light or illumination light to a specimen placed on a stage; an objective lens opposing the stage and capable of focusing fluorescence or reflected light from the specimen; an image-forming lens for forming an image of the specimen obtained by the objective lens; and an image-capturing unit for capturing the image of the specimen forming by the image-forming lens, wherein a plurality of the objective lenses having different magnifying powers is provided, and an objective-lens switching mechanism for switching among the objective lenses is provided, and wherein a plurality of the image-forming lenses having different magnifying powers is provided, and an image-forming-lens switching mechanism for switching among the image-forming lenses 5a and 5b is provided.
摘要:
An incident-light fluorescence microscope including: (i) a transmission illuminating optical system which has a first optical member for receiving light emitted from a light source and extracting transmitted light and which irradiates the transmitted light onto a sample, and (ii) an observation optical system which has an objective lens and a second optical member and which is positioned closer to the objective lens than the sample. An incident-light fluorescence illuminating optical system is provided in the observation optical system, wherein the first optical member has a peak of transmittance at a wavelength longer than the fluorescent wavelength, and the second optical member selectively modulates only a wavelength transmitted through the first optical member.