Optical device, phase plate, and image forming method
AssigneeSysmex Corporation
InventorsMasaya OKADA, Shigeki IWANAGA
Life of this patent
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Abstract
An optical device comprises a shared phase modulation mask configured to impart a first phase modulation to light of a first wavelength, and imparts a second phase modulation to light of a second wavelength, an irradiation optical system configured to cause the light of the first wavelength and the light of the second wavelength to enter the same incident region in the phase modulation mask, and a light collecting optical system configured to collect the light of the first phase-modulated first wavelength and the light of the second phase-modulated second wavelength to form an image corresponding to a point spread function.
Claims20
A method for forming images according to a point spread function, the method comprising:
- directing light of a first wavelength and light of a second wavelength to a phase plate to modulate the phases of the light, a thickness of the phase plate being set between a thickness of a phase plate for the first wavelength and a thickness of a phase plate for the second wavelength, and
- collecting phase-modulated light of the first wavelength and phase-modulated light of the second wavelength to form images respectively for each light of wavelength.
A method for forming images according to a point spread function, the method comprising:
- directing light of a first wavelength and light of a second wavelength to a phase plate to modulate the phases of the light, the phase plate comprising a geometry hybrid of a first phase modulation pattern for the light of the first wavelength and a second phase modulation pattern for the light of the second wavelength, and
- collecting phase-modulated light of the first wavelength and phase-modulated light of the second wavelength to form images respectively for each light of wavelength.
A method for forming images according to a point spread function, the method comprising:
- configuring a phase modulation mask to represent on its surface a hybrid phase modulation pattern of a first phase modulation pattern for the light of the first wavelength and a second phase modulation pattern for the light of the second wavelength
- directing light of a first wavelength and light of a second wavelength to a phase modulation mask to modulate the phases of the light with the hybrid phase modulation pattern, and
- collecting phase-modulated light of the first wavelength and phase-modulated light of the second wavelength to form images respectively for each light of wavelength.
Dependencies are inferred from the claim text.