Multi-dimensional imaging using multi-focus microscopy
First Claim
1. An optical imaging system comprising:
- a first diffractive element configured to receive a multi-wavelength beam of light and separates the received beam of light into diffractive orders, each diffractive order comprising a multi-wavelength beam of light that propagates away from the first diffractive element in a different direction, the first diffractive element comprising a grating pattern configured to apply a focus shift to the diffractive orders;
a second diffractive element comprising panels displaced along the second diffractive element in at least one direction, each panel positioned to receive and pass the multi-wavelength beam of one of the diffractive orders;
a refractive optical element positioned to receive multi-wavelength beams of the diffractive orders that pass through the second diffractive element; and
an optical lens that receives the multi-wavelength beams of the diffractive orders that pass through the refractive element and focuses each of the multi-wavelength beams of the diffractive orders to a different location on an image plane at the same time, whereinthe grating pattern being configured to apply a focus shift to the diffractive orders comprises the grating pattern being configured to apply a phase shift to the diffractive orders.
2 Assignments
0 Petitions
Accused Products
Abstract
An optical imaging system includes a first diffractive optical element that receives a multi-wavelength beam of light and separates the received beam of light into diffractive orders. The optical imaging system also includes a second diffractive optical element that includes panels displaced along the second diffractive element in at least one direction, where each panel is positioned to receive and pass the multi-wavelength beam of one of the diffractive orders. A refractive optical element is positioned to receive multi-wavelength beams of the diffractive orders that pass through the second diffractive element, and an optical lens that receives the multi-wavelength beams of the diffractive orders that pass through the refractive element and focuses each of the multi-wavelength beams of the diffractive orders to a different location on an image plane at the same time.
14 Citations
44 Claims
-
1. An optical imaging system comprising:
-
a first diffractive element configured to receive a multi-wavelength beam of light and separates the received beam of light into diffractive orders, each diffractive order comprising a multi-wavelength beam of light that propagates away from the first diffractive element in a different direction, the first diffractive element comprising a grating pattern configured to apply a focus shift to the diffractive orders; a second diffractive element comprising panels displaced along the second diffractive element in at least one direction, each panel positioned to receive and pass the multi-wavelength beam of one of the diffractive orders; a refractive optical element positioned to receive multi-wavelength beams of the diffractive orders that pass through the second diffractive element; and an optical lens that receives the multi-wavelength beams of the diffractive orders that pass through the refractive element and focuses each of the multi-wavelength beams of the diffractive orders to a different location on an image plane at the same time, wherein the grating pattern being configured to apply a focus shift to the diffractive orders comprises the grating pattern being configured to apply a phase shift to the diffractive orders. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. An imaging system comprising:
-
a dichroic mirror positioned to receive a multi-wavelength beam of light; a first color channel and a second color channel that receive, respectively, a light beam of a first color from the dichroic mirror and a light beam of a second color from the dichroic mirror;
wherein each of the first color channel and the second color channel comprise;a first diffractive element comprising a diffraction pattern, the first diffractive element configured to separate the light beam into diffractive orders, each diffractive order comprising a beam of light, a module comprising a second diffractive element and a refractive element, the module being positioned to receive and transmit the diffractive orders that propagate away from the first diffractive element, and a lens that receives the beams of the diffractive orders that pass through the module and focuses each of the beams to a different location on an image plane at the same time, wherein the first diffractive element in the first color channel has a diffraction pattern that is proportional to a wavelength of the first color, the first diffractive element in the second color channel has a grating pattern that is proportional to a wavelength of the second color, and each of the grating patterns of the first color channel, the second color channel, and the third color channel is configured to apply a focus shift. - View Dependent Claims (31)
-
-
32. A method of imaging, the method comprising:
-
passing a multi-wavelength beam of light through a first diffractive element to generate diffractive orders, each diffractive order comprising a multi-wavelength beam of light that propagates away from the first diffractive element in a different direction, wherein the first diffractive element applies a focus shift to each of the diffractive orders, the focus shift comprising an amount of re-focus determined by the Abbe sine condition; passing each of the beams of the multiple diffractive orders through a different panel of a second diffractive element; and passing the beams of the multiple diffractive orders that pass through the second diffractive element through a refractive element. - View Dependent Claims (33, 34, 35, 36, 37)
-
-
38. A method of generating a three-dimensional representation of a volume of material, the method comprising:
-
receiving a multi-wavelength beam of light, the beam of light comprising light from different depths within a volume of material; diffracting the received multi-wavelength beam of light into multiple beams that are spatially distinct from each other, each of the multiple beams comprising light from a particular one of the different depths within the volume of material; applying a focus shift to the multiple beams to generate multiple focus-shifted and spatially distinct beams; correcting the multiple focus-shifted beams that are spatially distinct from each other for chromatic dispersion; directing each of the multiple beams that are spatially distinct from each other onto a different portion of an image plane at substantially the same time; and generating a three-dimensional representation of the volume of material based on the directed multiple beams, the three-dimensional representation of the volume of material comprising a two-dimensional image of two or more of the different depths within the volume of material, wherein applying a focus shift to the multiple beams comprises applying a phase shift that is opposite to a depth-induced phase error. - View Dependent Claims (39)
-
-
40. A method of generating a three-dimensional representation of a volume of material, the method comprising:
-
receiving a multi-wavelength beam of light, the beam of light comprising light from different depths within a volume of material; diffracting the received multi-wavelength beam of light into multiple beams that are spatially distinct from each other, each of the multiple beams comprising light from a particular one of the different depths within the volume of material; applying a focus shift to the multiple beams to generate multiple focus-shifted and spatially distinct beams, wherein applying a focus shift to the multiple beams comprises applying an amount of re-focus to the multiple beams, the amount of re-focus being determined based on the Abbe sine condition; correcting the multiple focus-shifted beams that are spatially distinct from each other for chromatic dispersion; directing each of the multiple beams that are spatially distinct from each other onto a different portion of an image plane at substantially the same time; and generating a three-dimensional representation of the volume of material based on the directed multiple beams, the three-dimensional representation of the volume of material comprising a two-dimensional image of two or more of the different depths within the volume of material. - View Dependent Claims (41, 42, 43, 44)
-
Specification