Nikon Corporation

Akira Adachi

Hisao Osawa

Hisashi Okugawa

Shinichi Tsukada

Naoshi Aikawa

Hiroyuki Sugimura

Tadashi Uchida

Mikio Aoshima

Toshiro Umeda

Asaji Masuko

Noboru Yoneya

A spectroscope capable of suppressing the dimension and the cost with avoiding a problem caused by polarization dependency of the diffraction grating. The spectroscope includes a polarizing beam splitter platethat divides the light from an input fiberinto a first and a second optical paths and polarizes each light of each optical path having different direction of polarization with each other, a Fresnel rhomb half wave platethat arranges the direction of polarization of the light in the first optical path into that in the second optical path and a plane mirrorthat deflects the second optical path such that at least a portion of an area where the light through the first optical path is incident on the diffraction gratingand an area where the light through the second optical path is incident on the diffraction grating overlap each other.

Spectroscope and microspectroscope equipped therewith

A light path deviation detecting apparatus has a diverging element for diverging a detection target light path into two light paths, and detects light receiving position on light receiving surfaces disposed spaced light path lengths different from each other in the diverged light paths. A tilt of the detection target light path is detected from the light receiving positions detected respectively.

Light path deviation detecting apparatus and confocal microscope

A soundproofing device for a resonant scanner for deflecting a laser beam includes a plate member for fixing the resonant scanner, a plurality of stanchions for supporting the plate member, and a base for fixing the stanchions. The stanchions support the plate member at a position at which an amplitude of the plate member at a resonant frequency of the resonant scanner is minimum.

Soundproofing device for a resonant scanner

A focusing screen of the type composed of a multitude of micro-lens-like curved surfaces arranged on a given plane is substantially regular in terms of their two-dimensional arrangement on the above-mentioned plane but exhibits some variation in terms of the height of the microscopic surface roughness formed by the micro-lens-like curved surfaces. The variation range is determined in correspondence with the pitch of the above-mentioned two-dimensional arrangement. Also disclosed is a method of manufacturing a focusing screen exhibiting an appropriate degree of randomness in terms of its surface configuration.

Focusing screen and method of manufacturing same

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Sagamihara, Japan

Akira Adachi