Method for manufacturing optical device, optical device, non-transitory computer-readable storage medium, and color adjusting device

An optical device comprising:

• an optical element configured to adjust a light intensity of a first color component and a light intensity of a second color component in light transmitted through the optical element, based on a spectral intensity Rs and a spectral intensity Gs, a wavelength of the second color component being shorter than a wavelength of the first color component, wherein
• the spectral intensity Rs and the spectral intensity Gs are determined by:
• obtaining a plurality of at least three test images in each of which a spectral intensity of the first color component, a spectral intensity of the second color component, and a spectral intensity of a third color component are separately changeable, a wavelength of the third color component being shorter than the wavelength of the second color component, and the at least three test images having colors that are different from each other;
• simultaneously changing the respective spectral intensities of the first color components in the at least three test images without changing the spectral intensities of the second color component and without changing the spectral intensities of the third color components in the at least three test images;
• obtaining a spectral intensity Rs of the first color component that is set in common for the at least three test images, the spectral intensity Rs satisfying a first particular test condition when a subject is looking at the at least three test images in which the respective spectral intensities of the first color components are being simultaneously changed;
• simultaneously changing the spectral intensities of the second color components in the at least three test images without changing the spectral intensities of the first color components and without changing the spectral intensities of the third color components, in the at least three test images;
• and
• obtaining a spectral intensity Gs of the second color component that is set in common for the at least three test images, the spectral intensity Gs satisfying a second particular test condition when the subject is looking at the at least three test images in which the respective spectral intensities of the second color component are being simultaneously changed.

A non-transitory computer-readable storage medium storing computer-readable instructions configured to, when executed by a computer, cause the computer to perform steps comprising:

• obtaining a plurality of at least three test images in each of which a spectral intensity of a first color component, a spectral intensity of a second color component, and a spectral intensity of a third color component are separately changeable, a wavelength of the second color component being shorter than a wavelength of the first color component, a wavelength of the third color component being shorter than the wavelength of the second color component, and the at least three test images having colors that are different from each other;
• simultaneously changing the respective spectral intensities of the first color components in the at least three test images without changing the spectral intensities of the second color components and without changing the spectral intensities of the third color components, in the at least three test images;
• obtaining a spectral intensity Rs of the first color component that is set in common for the at least three test images, the spectral intensity Rs satisfying a first particular test condition when a subject is looking at the at least three test images in which the respective spectral intensities of the first color components are being simultaneously changed;
• simultaneously changing the spectral intensities of the second color components in the at least three test images without changing the spectral intensities of the first color components and without changing the spectral intensities of the third color components, in the at least three test images;
• obtaining a spectral intensity Gs of the second color component that is set in common for the at least three test images, the spectral intensity Gs satisfying a second particular test condition when the subject is looking at the at least three test images in which the respective spectral intensities of the second color component are being simultaneously changed;
• displaying an image based on an image signal;
• and
• adjusting at least one of a spectral intensity of the first color component and a spectral intensity of the second color component, in the image based on the image signal, based on the spectral intensity Rs and the spectral intensity Gs.

A color adjusting device, comprising:

• a test image setter configured to obtain a plurality of at least three test images in each of which a spectral intensity of a first color component, a spectral intensity of a second color component, and a spectral intensity of a third color component are separately changeable, a wavelength of the second color component being shorter than a wavelength of the first color component, a wavelength of the third color component being shorter than the wavelength of the second color component, and the at least three test images having colors that are different from each other;
• a spectral intensity changer configured to:
• simultaneously change the respective spectral intensities of the first color components in the at least three images without changing the spectral intensities of the second color components and without changing the spectral intensities of the third color components, in the at least three test images;
• and
• simultaneously change the spectral intensities of the second color components in the at least three images without changing the spectral intensities of the first color components and without changing the spectral intensities of the third color components, in the at least three test images;
• a spectral intensity obtainer configured to:
• obtain a spectral intensity Rs of the first color component that is set in common for the at least three test images, the spectral intensity Rs satisfying a first particular test condition when a subject is looking at the at least three test images in which the respective spectral intensities of the first color components are being simultaneously changed, and
• obtain a spectral intensity Gs of the second color component that is set in common for the at least three test images, the spectral intensity Gs satisfying a second particular test condition when the subject is looking at least three images in which the respective spectral intensities of the second color components are being simultaneously changed;
• an image displayer configured to display an image based on an image signal;
• and
• a spectral intensity adjuster configured to adjust at least one of a spectral intensity of the first color component and a spectral intensity of the second color component, in the image based on the image signal, based on the spectral intensity Rs and the spectral intensity Gs.