摘要:
A handheld electromotive tool capable of efficient execution of a floor board and a ceiling board is provided. The tool is used in combination with a beam emitting device for emitting a radiation beam in a reference plane, and is provided with a housing held by an operator. The housing has a work member driven by an electric motor and a photo detector for receiving the radiation beam projected in the reference plane. Output signals indicating positional deviation of the photo detector from the reference plane are generated on the basis of output of the photo detector. Rotation of the motor is controlled as follows. Rotation of the electric motor is stopped when the radiation beam is received at a reference position of the photo detector. The electric motor rotates at high speed until the radiation beam is received in the vicinity of the reference position. The electric motor rotates at low speed from the time the radiation beam is received in the vicinity of the reference position to the time the radiation beam is received at the reference position.
摘要:
An optical apparatus having at least one optical element arranged along an optical path of an irradiation light. A first hermetic chamber is defined along the optical path separating the optical path from ambient air and charged with a predetermined gas. A second hermetic chamber is located in the first hermetic chamber separating the optical path from the gas in the first hermetic chamber and retaining the optical elements.
摘要:
A coarse/fine adjustment of a rotary body, comprising: a worm wheel fitted to a rotary shaft of a rotary body; a worm meshing with the worm wheel and having a first screw; a rotary driving shaft having a second screw engaging with the first screw and rotated by a manipulation member and a switching means for effecting a switchover to rotationally or rectilinearly move the worm engaging with the rotary driving shaft. The worm is biased by a biasing means to mesh with the worm wheel while keeping a thrust state.
摘要:
The present invention provides a variable slit apparatus, which can rapidly change the shape of the slit width of the illumination light while finely controlling the shape of the slit-shaped illumination light, an illumination apparatus that uses such, an exposure apparatus, and the like. The variable slit apparatus for forming a slit-shaped illumination light comprises: a first light-shielding mechanism that comprises a plurality of blades for defining one long side of the illumination light; a second light-mechanism configured to define another long side of the illumination light; and a drive mechanism that changes the width of the illumination light in the latitudinal direction orthogonal to the longitudinal direction by driving the first light-shielding mechanism and the second light-shielding mechanism.
摘要:
An accommodating unit capable of accommodating a culture vessel, a transfer unit supporting and transferring the culture vessel, and taking in and out the culture vessel relative to the accommodating unit, and an observation unit observing a sample inside of the culture vessel via an observation optical system under a state in which the culture vessel is supported by the transfer unit, are included. The transfer unit performs a positioning of each part of the sample on an optical axis of the observation optical system by moving the culture vessel at the time of observation of the sample by the observation unit. Consequently, it is possible to provide an incubator having a simple configuration.
摘要:
The illuminating optical system is divided into a first portion including movable blades moving during exposure, and a second portion not containing a movable portion moving over the movable blade during exposure. The second portion is installed on the exposure main portion, and the first portion, separately from the exposure main portion. The frames configuring the first and the second optical units, the second optical unit having optical elements of a smaller movable amount than the movable amount of the movable blades, are relatively displaceably connected via the bellows-shaped member. The frames configuring the second optical units are fixed to each other via the O-ring suppressing relative displacement. As a result, the effect of vibration of the illuminating optical system during exposure on the main portion can be reduced. Upon purging nitrogen gas or the like in the space interior of the frame and the space between adjacent frames, the degree of air-tightness and chemical cleanliness is improved, consequently improving the exposure accuracy.
摘要:
A measuring apparatus having a high water-proof property has water-proof rings rotatably disposed about outer peripheries of a horizontal shaft and a vertical shaft bearing. Gaps between the rings and the peripheries of corresponding openings in a housing are blocked by respective deformable elastic water-proof members which secure the rings to the housing.
摘要:
The present application includes a culture chamber, an observation chamber having an optical system of observation to observe samples to be cultured in the culture chamber, and a movement stage provided at a boundary which separates the culture chamber and the observation chamber, functioning as a wall to maintain an environment of both of the chambers, bearing the samples, and moving the samples on a light axis of observation of the optical system of observation. Due to such an arrangement, a culture observation equipment which has good response and excellent environmental resistance can be achieved, preventing problems such as the overall size of the device became large, maintenance work was difficult, and device cost became expensive.
摘要:
The present application includes a culture chamber, an observation chamber having an optical system of observation to observe samples to be cultured in the culture chamber, and a movement stage provided at a boundary which separates the culture chamber and the observation chamber, functioning as a wall to maintain an environment of both of the chambers, bearing the samples, and moving the samples on a light axis of observation of the optical system of observation. Due to such an arrangement, a culture observation equipment which has good response and excellent environmental resistance can be achieved, preventing problems such as the overall size of the device became large, maintenance work was difficult, and device cost became expensive.
摘要:
The present invention provides a variable slit apparatus, which can rapidly change the shape of the slit width of the illumination light while finely controlling the shape of the slit-shaped illumination light, an illumination apparatus that uses such, an exposure apparatus, and the like. The variable slit apparatus for forming a slit-shaped illumination light comprises: a first light-shielding mechanism that comprises a plurality of blades for defining one long side of the illumination light; a second light-mechanism configured to define another long side of the illumination light; and a drive mechanism that changes the width of the illumination light in the latitudinal direction orthogonal to the longitudinal direction by driving the first light-shielding mechanism and the second light-shielding mechanism.