摘要:
An immersion microscope objective formed of thirteen or fewer lens elements includes, in order from the object side, first and second lens groups (G1,G2) of positive refractive power, a third lens group (G3), a fourth lens group (G4) having negative refractive power with its image-side surface being concave, and a fifth lens group (G5) having positive refractive power with its object-side surface being concave. The first lens group (G1) includes, in order from the object side, a lens component that consists of a lens element of positive refractive power (when computed as being in air) and a meniscus lens element having its concave surface on the object side. Various conditions are satisfied to ensure that images of fluorescence, obtained when the immersion microscope objective is used in a laser scanning microscope that employs multiphoton excitation to observe a specimen, are bright and of high resolution. Various laser scanning microscopes are also disclosed.
摘要:
An immersion microscope objective formed of thirteen or fewer lens elements includes, in order from the object side, first and second lens groups (G1,G2) of positive refractive power, a third lens group (G3), a fourth lens group (G4) having negative refractive power with its image-side surface being concave, and a fifth lens group (G5) having positive refractive power with its object-side surface being concave. The first lens group (G1) includes, in order from the object side, a lens component that consists of a lens element of positive refractive power (when computed as being in air) and a meniscus lens element having its concave surface on the object side. Various conditions are satisfied to ensure that images of fluorescence, obtained when the immersion microscope objective is used in a laser scanning microscope that employs multiphoton excitation to observe a specimen, are bright and of high resolution. Various laser scanning microscopes are also disclosed.
摘要:
The invention provides a confocal microscope comprising a light source; a light scanning unit (2); an array device (4); a line-beam generating unit (3) for imaging illumination light in the form of a straight line extending, on the array device, in a direction intersecting the scanning direction of the light scanning unit; an objective lens (5) for imaging the illumination light reflected or transmitted at the array device on a specimen; a beamsplitter (6), between the array device (4) and the light scanning unit (2), for splitting off from the illumination light detection light from the specimen; a two-dimensional image-acquisition unit (7) for acquiring the split off detection light; and a control unit (8) for controlling the light scanning unit and the array device, wherein the array device is disposed in an optically conjugate positional relationship with a focal plane of the objective lens, and the control unit performs control so as to synchronize the light scanning unit and the array device. The invention also provides a multiphoton excitation microscope with a beamsplitter (16) between the objective lens (5) and the array device (4).
摘要:
A microscope apparatus includes a laser beam source for emitting a laser beam, an objective lens for irradiating a sample with the laser beam, a phase-modulating spatial light modulator placed between the laser beam source and the objective lens at a position optically conjugate with a pupil position of the objective lens, and a beam diameter variable unit placed between the laser beam source and the phase-modulating spatial light modulator for varying a beam diameter of the laser beam incident to the phase-modulating spatial light modulator.
摘要:
A microscope apparatus includes a laser beam source for emitting a laser beam, an objective lens for irradiating a sample with the laser beam, a phase-modulating spatial light modulator placed between the laser beam source and the objective lens at a position optically conjugate with a pupil position of the objective lens, and a beam diameter variable unit placed between the laser beam source and the phase-modulating spatial light modulator for varying a beam diameter of the laser beam incident to the phase-modulating spatial light modulator.
摘要:
A scanning optical microscope includes a light source, a light converging optical system, a stage, a scanning unit which displaces an illumination light and the stage relatively, a detecting optical system, and a photodetector. A light modulation element and a relay optical system are disposed on the light converging optical system side of the light source, and a modulated signal having only amplitude changed is input to the light modulation element, and the light modulation element is positioned such that the illumination light emerged from the light modulation element with respect to the modulated signal of a predetermined amplitude coincides with an optical axis of the light converging optical system, and a position of a pupil of the light converging optical system and a position of the light modulation element are conjugate through at least the relay optical system.