Abstract: An electronic imaging apparatus includes a connecting section connected to an optical apparatus; an optical element having a preset transmittance with respect to light in a preset wavelength region, incident from the optical apparatus; and an electronic image sensor receiving the light transmitted through the optical element.

Abstract: An electronic imaging apparatus includes a connecting section connected to an optical apparatus; an optical element having a preset transmittance with respect to light in a preset wavelength region, incident from the optical apparatus; and an electronic image sensor receiving the light transmitted through the optical element.

Abstract: An observation or measurement device has, at least, an infinity-corrected objective lens and an imaging lens, and satisfies a condition, 4.56?D·NA??30, where D is the parfocal distance of the objective lens and NA? is the numerical aperture of the imaging lens. It is desirable to make a distance from the mount position of the objective lens to the most object-side surface of the imaging lens variable and to satisfy a condition, 0.5 FL<W<1.2 FL, where W is the variable amount of the distance from the mount position of the objective lens to the most object-side surface of the imaging lens, and FL is the focal length of the imaging lens. It is more desirable to satisfy conditions, 0.4<D/FL<5 and 1?D/?d<3, where ?d is the outside diameter of a connection at the mount of the objective lens.

Abstract: A microscope includes an optical element provided with an anti-reflection film applied thereto. The anti-reflection film has the following layered structure: having first to sixth layers of films, in order from the surface of the optical element, formed of a high-refractive-index material for each of the first, third and fifth layers, a low-refractive-index material or a middle-refractive-index material for each of the second and fourth layers, and a low-refractive-index material for the sixth layer, with a range of the optical film-thickness nd of each layer in reference to the design wavelength ? being “(0.13˜0.35)×?/4” for the first layer, “(0.18˜0.75)×?/4” for the second layer, “(0.28˜2.31)×?/4” for the third layer, “(0.26˜0.92)×?/4” for the fourth layer, “(0.20˜0.37)×?/4” for the fifth layer, and “(1.09˜1.18)×?/4” for the sixth layer.

Abstract: A microscope includes an optical element provided with an anti-reflection film applied thereto. The anti-reflection film has the following layered structure: having first to sixth layers of films, in order from the surface of the optical element, formed of a high-refractive-index material for each of the first, third and fifth layers, a low-refractive-index material or a middle-refractive-index material for each of the second and fourth layers, and a low-refractive-index material for the sixth layer, with a range of the optical film-thickness nd of each layer in reference to the design wavelength ? being “(0.13˜0.35)×?/4” for the first layer, “(0.18˜0.75)×?/4” for the second layer, “(0.28˜2.31)×?/4” for the third layer, “(0.26˜0.92)×60 /4” for the fourth layer, “(0.20˜0.37)×?/4” for the fifth layer, and “(1.09˜1.18)×?/4” for the sixth layer.

Abstract: A microscope includes an optical element provided with an anti-reflection film applied thereto. The anti-reflection film has the following layered structure: having first to sixth layers of films, in order from the surface of the optical element, formed of a high-refractive-index material for each of the first, third and fifth layers, a low-refractive-index material or a middle-refractive-index material for each of the second and fourth layers, and a low-refractive-index material for the sixth layer, with a range of the optical film-thickness nd of each layer in reference to the design wavelength ? being “(0.13˜0.35)×?/4” for the first layer, “(0.18˜0.75)×?/4” for the second layer, “(0.28˜2.31)×?/4” for the third layer, “(0.26˜0.92)×?/4” for the fourth layer, “(0.20˜0.37)×?/4” for the fifth layer, and “(1.09˜1.18)×?/4” for the sixth layer.

Abstract: A microscope includes an optical element provided with an anti-reflection film applied thereto. The anti-reflection film has the following layered structure: having first to sixth layers of films, in order from the surface of the optical element, formed of a high-refractive-index material for each of the first, third and fifth layers, a low-refractive-index material or a middle-refractive-index material for each of the second and fourth layers, and a low-refractive-index material for the sixth layer, with a range of the optical film-thickness nd of each layer in reference to the design wavelength ? being “(0.13˜0.35)×?/4” for the first layer, “(0.18˜0.75)×?/4” for the second layer, “(0.28˜2.31)×?/4” for the third layer, “(0.26˜0.92)×?/4” for the fourth layer, “(0.20˜0.37)×?/4” for the fifth layer, and “(1.09˜1.18)×?/4” for the sixth layer.

Abstract: A culture microscope apparatus has an illumination unit to apply excitation light to the specimen, a specimen observing portion to observe light generated from the specimen due to the excitation light, and a dimmer unit to dim the excitation light that has penetrated the specimen.

Abstract: The relay optical system comprises, in order from the intermediate image position I toward the the exit pupil EXP side, a first unit G1 having a negative refracting power and a second unit G2 having a positive refracting power, wherein the distance from the rearmost surface of the second unit to the exit pupil position is at least 30 mm. The relay optical system allows a photographing apparatus to be mounted on a microscope without the microscope and the photographing apparatus excluding each other from their predetermined positions.

Abstract: An electronic imaging apparatus includes a connecting section connected to an optical apparatus; an optical element having a preset transmittance with respect to light in a preset wavelength region, incident from the optical apparatus; and an electronic image sensor receiving the light transmitted through the optical element.

Abstract: The relay optical system comprises, in order from the intermediate image position I toward the the exit pupil EXP side, a first unit G1 having a negative refracting power and a second unit G2 having a positive refracting power, wherein the distance from the rearmost surface of the second unit to the exit pupil position is at least 30 mm. The relay optical system allows a photographing apparatus to be mounted on a microscope without the microscope and the photographing apparatus excluding each other from their predetermined positions.

Abstract: A microscope includes a column which stands upright on a base, an LED light source, a stage for placing a specimen irradiated with light from the LED light source, a lens barrel which is arranged to face the specimen on the stage, and has an observation optical system for acquiring the observation image of the specimen, an image sensing element which is arranged at the imaging position of the observation optical system of the lens barrel, and senses the observation image of the specimen, a monitor for displaying the observation image sensed by the image sensing element, and a recording unit for recording image data of the observation image sensed by the image sensing element. At least the LED light source, stage, observation optical system, and image sensing element are arranged along the optical axis of the observation optical system, and supported along the column.

Abstract: Microscope apparatus and a method are disclosed for avoiding a reduction in intensity at the periphery of a microscope image that is detected by an electronic image-detector and then displayed. The method includes inserting one or more stops along the optical axis of the microscope, said stop(s) having a central transmissive region and a blocking region outside the central transmissive region; and positioning at least one stop so as to simultaneously block peripheral portions of axial and abaxial light fluxes from a sample under observation from being incident onto the electronic image detector, thereby making the axial and abaxial light fluxes that are incident onto the electronic image detector substantially equal in detected brightness.

Abstract: The relay optical system comprises, in order from the intermediate image position I toward the the exit pupil EXP side, a first unit G1 having a negative refracting power and a second unit G2 having a positive refracting power, wherein the distance from the rearmost surface of the second unit to the exit pupil position is at least 30 mm. The relay optical system allows a photographing apparatus to be mounted on a microscope without the microscope and the photographing apparatus excluding each other from their predetermined positions.

Abstract: Microscope apparatus and a method are disclosed for avoiding a reduction in intensity at the periphery of a microscope image that is detected by an electronic image-detector and then displayed. The method includes inserting one or more stops along the optical axis of the microscope, said stop(s) having a central transmissive region and a blocking region outside the central transmissive region; and positioning at least one stop so as to simultaneously block peripheral portions of axial and abaxial light fluxes from a sample under observation from being incident onto the electronic image detector, thereby making the axial and abaxial light fluxes that are incident onto the electronic image detector substantially equal in detected brightness.

Abstract: The relay optical system comprises, in order from the intermediate image position I toward the the exit pupil EXP side, a first unit G1 having a negative refracting power and a second unit G2 having a positive refracting power, wherein the distance from the rearmost surface of the second unit to the exit pupil position is at least 30 mm. The relay optical system allows a photographing apparatus to be mounted on a microscope without the microscope and the photographing apparatus excluding each other from their predetermined positions.

Abstract: A conversion optical system is interposed between an optical system for transmitting, at least once, an image formed by an objective lens and a final image transmitted and obtained by the optical system so that a convergent beam of light is converted into a nearly infinite optical beam.

Abstract: A stereo camera is designed to photograph images of an object on a plurality of frames and includes a device for securing focus detecting data of a distance to a chief object and a data recording device for recording parallax data derived from the focus detecting data or data capable of finding the parallax data on an image recording medium. A printing system for stereoscopic photography is such that images to be printed are recorded on the image recording medium by the stereo camera, and has a device for using the parallax data, as data independent of a photographic image, derived from the focus detecting data of the distance to the chief object or the data capable of finding the parallax data to automatically adjust the position of a combined image.