Olympus Corporation

Kunihiko Uzawa

Ken Kawamata

Nobuyoshi Toyohara

Yorio Wada

Takeshi Deguchi

Atsushi Yonetani

Joji Sakamoto

A microscope includes an optical element provided with an anti-reflection film applied thereto. The anti-reflection film has the following layered structure:

Anti-reflection film and microscope having optical element with the same anti-reflection film applied thereto

A fluorescence observing apparatus has an excitation filter unit for transmitting only exciting light with particular wavelengths, of illuminating light, and an absorption filter unit for transmitting only fluorescent light produced from a specimen by irradiating the specimen with the exciting light to block the exciting light. In this case, the space between the half-value wavelength on the long-wavelength side of the excitation filter unit and the half-value wavelength on the short-wavelength side of the absorption filter unit is in the range of 6&#x2013;12 nm, and variations in the half-value wavelengths of the excitation filter unit and the absorption filter unit where humidity is changed from 10% to 95% are within 0.5 nm. Whereby, faint fluorescent light is efficiently taken out and the observation can be made.

Fluorescence observing apparatus

Growing community of inventors

Sagamihara, Japan

Kunihiko Uzawa