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US 5,078,150 AGranted
Spectral diagnosing apparatus with endoscope
AssigneeOlympus Optical Co., Ltd.
InventorsTadayoshi Hara, Yoichi Miyake, Takao Tsuruoka, Kazunari Nakamura
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Abstract
An object is illuminated sequentially with light of wavelengths in respective narrow bands through a light guide in an electronic endoscope provided with an imaging device. The picture images are photoelectrically converted by the imaging device and are temporarily stored respectively in memories. The spectral distribution characteristics of the object are calculated by using spectral distribution calculating data and are displayed on a display.
Claims28
A spectral distribution measuring apparatus using an endoscope comprising:
- an electronic endoscope formed of an elongate insertable section, a light guide inserted through said insertable section and emitting form another end an illuminating light input to one end surface, an objective optical system arranged on a tip side of said insertable section and an imaging means photoelectrically converting an optical image by said objective system;
- a driving means for producing a driving signal driving said imaging means;
- a light source means for sequentially outputting a light having a wavelength in a plurality of narrow bands to one end surface of said light guide, said plurality of narrow bands substantially determine a characteristic of spectral distribution by spectral measurement;
- a memory means for temporarily storing respective picture images signals imaged by said imaging means under illuminating of the light of said respective wavelengths;
- a data holding means for storing spectral data for spectral distribution calculation;
- a designating means for designating an arbitrary part of said picture image signal;
- a spectral distribution calculation means for calculating the spectral distribution of said arbitrary part from the picture image signal data stored in said memory means using said spectral data;
- and
- a display means for displaying a presumed spectral distribution calculated by said spectral distribution calculating means.
6 more elements
An endoscope apparatus comprising:
- an electronic endoscope formed of an elongated insertable section, a light guide inserted though said insertable section and emitting from another end an illuminating light into to one end surface, an objective optical system arranged on a tip side of said insertable section and an imaging means photoelectrically converting an optical image by said objective optical system;
- a driving means for producing a driving signal driving said imaging means;
- a light source means for sequentially outputting a light having a wavelength in a plurality of narrow bands, for spectral measurement, to one end surface of said light guide;
- a memory means for temporarily storing respective picture image signals of each narrow band imaged by said imaging means under illumination of the light of said respective wavelengths;
- a selecting means for freely selecting the picture image signals of narrow bands of interest read out of said memory means;
- a signal processing means for processing the picture image signals selected by said selecting means to produce a standard video signal;
- and
- a monitor means for displaying said standard video signal.
5 more elements
Dependencies are inferred from the claim text.