Patent ID: 7081952

Claim:
A method for obtaining an image using a selective combination of wavelengths of light, comprising: dispersing a light in accordance with wavelength bands of the light using a dispersing member; irradiating the dispersed light onto an object to measure reflectivities of the light reflected from the object in accordance with the wavelength bands of the light; comparing reflectivity differences between an objective region of the object and a peripheral region of the object; selecting wavelength bands having the reflectivity differences indicated as either positive values or negative values; adjusting the dispersing member to transmit only the light having the selected wavelength bands; passing light only having the selected wavelength bands through the dispersing member to irradiate the light that has passed through the dispersing member onto the object; taking photographs of the object using the irradiated light; and superposing the photographs of the object to obtain the image of the object.