# US 10,120,336 B2 · System, apparatus and method for extracting image cross-sections of an object from received electromagnetic radiation

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- Number: US 10,120,336 B2
- Document ID: US10120336B2
- Status: Granted
- Kind: B2
- Application number: 15/475,657
- Filed: 2017-03-31
- Published: 2017-07-20
- Granted: 2018-11-06
- Earliest claimed: 2013-02-25
- Assignees: Celloptic, Inc.
- Applicants: Celloptic, Inc.
- Inventors: Joseph Rosen
- Web page: https://patentgrep.com/patent/US10120336B2

## CPC

- G03H 1/26: Processes or apparatus specially adapted to produce multiple {sub-} holograms or to obtain images from them, e.g. multicolour technique
- G03H 1/0005: {Adaptation of holography to specific applications (holographic optical element G02B5/32; holographic scanner G02B26/106; recognition using holographic mask G06V10/88; holographic memories G11B7/0065, G11C13/042)}
- G03H 1/041: {Optical element in the object space affecting the object beam, not otherwise provided for}
- G03H 1/0443: {Digital holography, i.e. recording holograms with digital recording means (holobject computation G03H1/0866)}
- G03H 1/06: using incoherent light
- G03H 1/08: Synthesising holograms, {i.e. holograms synthesized from objects or objects from holograms}(using electric digital computers G06F; G06T)
- G03H 5/00: Holographic processes or apparatus using particles or using waves other than those covered by groups G03H1/00 or G03H3/00 for obtaining holograms; Processes or apparatus for obtaining an optical image from them (G03H1/22 takes precedence; construction of electron microscopes H01J37/26; {investigating or analysing materials by the use of microwaves G01N22/00, by the use of particles wave or X-rays G01N23/00, G21K7/00})
- G03H 2001/0033: {in hologrammetry for measuring or analysing}
- G03H 2001/0452: {arranged to record an image of the object}
- G03H 2210/33: 3D/2D, i.e. the object is formed of stratified 2D planes, e.g. tomographic data
- G03H 2223/23: Diffractive element
- G03H 2226/11: Electro-optic recording means, e.g. CCD, pyroelectric sensors
- G03H: HOLOGRAPHIC PROCESSES OR APPARATUS (holograms, e.g. point holograms, used as ordinary optical elements G02B5/32; producing stereoscopic or other three-dimensional effects G02B30/00; diffraction-grating systems G02B27/44; systems using moiré fringes G02B27/60; optical logic elements G02F3/00; stereo-photography G03B35/00; photosensitive materials or processes for photographic purposes G03C; {stereo-photographic or similar processes G03C9/00}; apparatus for processing exposed photographic materials G03D; analogue computers performing mathematical operations with the aid of optical elements G06E3/00; authentication by radiation, of concealed information carried by holograms or diffraction gratings G06K19/16; holographic storage G11B7/0065, G11C13/04; {stereoscopic or other three dimensional effects in television systems H04N13/00})

## Abstract

An apparatus and method to produce a hologram of a cross-section of an object includes an electromagnetic radiation assembly configured to receive a received electromagnetic radiation, such as light, from the object. The electromagnetic radiation assembly is further configured to diffract the received electromagnetic radiation and transmit a diffracted electromagnetic radiation. An image capture assembly is configured to capture an image of the diffracted electromagnetic radiation and produce the hologram of the cross-section of the object from the captured image. The hologram of the cross-section includes information regarding a single cross-section of the object.

## Claims

### Claim 1

An apparatus configured to produce holograms of plural cross sections of an object that emits an emitted electromagnetic radiation, said apparatus comprising:
an electromagnetic radiation assembly different from the object, said electromagnetic radiation assembly configured to receive the emitted electromagnetic radiation from the object, diffract the received electromagnetic radiation, and transmit a diffracted electromagnetic radiation;
an image capture assembly configured to capture at least one image of the diffracted electromagnetic radiation, and produce holograms of plural cross-sections of the object from the at least one captured image, each of the holograms including information regarding a single cross section of the object, and
a varying device configured to vary a location of the input object focal plane or a location of the output focal plane for each of the single cross sections of the object, wherein
the electromagnetic radiation assembly is between the object and the image capture assembly.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein
the varying device varies a distance between the object and at least one component of the electromagnetic radiation assembly.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein
the varying device varies a distance between the image capture assembly and at least one component of the electromagnetic radiation assembly.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein
the varying device varies the input object focal plane location by varying a diffracting capability of a portion of the electromagnetic radiation assembly.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein
the varying device varies the output focal plane location by varying a diffracting capability of a portion of the electromagnetic radiation assembly.