Title:
ILLUMINATING DEVICE, ILLUMINATING METHOD AND SCANNING OPTICAL MICROSCOPE
Document Type and Number:
WIPO Patent Application WO/2008/020548
Kind Code:
A1
Abstract:
Emitter excitation light (108) having a wavelength of λ1 emitted
from a light source (101) is collected by a collecting lens (102) to an emitter
(107). The emitter (107) is held on a substrate (104), and emits fluorescence
having a wavelength of λ2 when irradiated with the emitter excitation
light (108) having the wavelength of λ1. Since the diameter
(a) of the emitter (107) is smaller than the wavelength λ2, the
fluorescent includes an evanescent wave and travels in the substrate (104) as
object illuminating light (109) having the emitter (107) as a point light source.
A negative refractive lens (105) is arranged to focus the image of the emitter
(107) on the surface of the object (106). Thus, not only propagating light components
included in the object illuminating light (109) but also the evanescent wavelength
components are collected at the same time, and a fine beam spot having a size substantially
the same as that of the emitter (107) is formed on the surface of the object (106).
Inventors:
FUKUYAMA, hiroya (OLYMPUS CORPORATION, 43-2 Hatagaya 2-chomeShibuya-ku Tokyo, 72, 1510072, JP)
Application Number:
JP2007/065146
Publication Date:
February 21, 2008
Filing Date:
August 02, 2007
Export Citation:
Assignee:
OLYMPUS CORPORATION (43-2, Hatagaya 2-chome Shibuya-k, Tokyo 72, 1510072, JP)
オリンパス株式会社 (〒72 東京都渋谷区幡ヶ谷２丁目４３番２号 Tokyo, 1510072, JP)
オリンパス株式会社 (〒72 東京都渋谷区幡ヶ谷２丁目４３番２号 Tokyo, 1510072, JP)
International Classes:
G02B21/00; G02B21/06
Attorney, Agent or Firm:
SAITO, Keisuke (Takou Building Kudan 6F, 8-5 Iidabashi 2-chom, Chiyoda-ku Tokyo 72, 1020072, JP)
Download PDF:
Previous Patent: COMMUNICATION PROCESSING DEVICE, COMMUNICATION CONTROL METHOD, AND COMPUTER PROGRAM
Next Patent: METHOD OF COOLING STEEL SHEET
Next Patent: METHOD OF COOLING STEEL SHEET