# US 2018/0023943 A1 · Optical apparatuses and method of collecting three dimensional information of an object

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- Number: US 2018/0023943 A1
- Document ID: US20180023943A1
- Status: Published application
- Kind: A1
- Application number: 15/215,652
- Filed: 2016-07-21
- Published: 2018-01-25
- Earliest claimed: 2016-07-21
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: TzungHan LIN; YuLun LIU
- Web page: https://patentgrep.com/patent/US20180023943A1

## CPC

- G01B 11/00: Measuring arrangements characterised by the use of optical techniques
- G01J 3/2823: {Imaging spectrometer}
- G01J 3/0208: {using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction}
- G01J 3/0229: {using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters}
- G01J 2003/2826: {Multispectral imaging, e.g. filter imaging}
- G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)

## Abstract

The present disclosure relates to an optical apparatus of collecting three dimensional information of an object, which includes an optical detector, a mask, a first optical module and a second optical module. The mask has a first aperture and a second aperture separated from the first aperture by the mask. The first optical module in the first aperture to provide a first light beam of a first wavelength range in accordance with light reflected from the object. The second optical module in the second aperture to provide a second light beam of a second wavelength range in accordance with the light reflected from the object.

## Claims

### Claim 1

An optical apparatus of collecting three dimensional information of an object, comprising:
an optical detector; and
a mask having a first aperture and a second aperture separated from the first aperture by the mask;
a first optical module in the first aperture and providing a first light beam of a first wavelength range in accordance with light reflected from the object; and
a second optical module in the second aperture and providing a second light beam of a second wavelength range in accordance with the light reflected from the object.

### Claim 2 (depends on 1)

The optical apparatus of claim 1, wherein the first optical module comprises:
a first filter; and
a first lens between the object and the first filter,
wherein the first filter receives the light reflected from the object through the first lens and outputs the first light beam to the optical detector.

### Claim 3 (depends on 1)

The optical apparatus of claim 1, wherein the first optical module comprises:
a first lens; and
a first filter between the object and the first lens,
wherein the first filter receives the light reflected from the object and outputs the first light beam, wherein the first lens directs the first light beam to the optical detector.

### Claim 4 (depends on 1)

The optical apparatus of claim 1, wherein the first optical module comprises a lens having an optical film thereon, wherein the optical film receives the light reflected from the object and outputs the first light beam, wherein the lens directs the first light beam to the optical detector.

### Claim 5 (depends on 1)

The optical apparatus of claim 1, further comprising a lens between the object and the mask.

### Claim 6 (depends on 1)

The optical apparatus of claim 1, further comprising a mirror to direct the first light beam to the optical detector.

### Claim 7 (depends on 1)

The optical apparatus of claim 1, wherein the mask further comprises a third aperture separated from the first aperture and the second aperture by the mask and a third optical module in the third aperture, the third optical module provides a third light beam of a third wavelength range in accordance with light reflected from the object.

### Claim 8 (depends on 7)

The optical apparatus of claim 7, wherein the first optical module and the third optical module are switchable.

### Claim 9 (depends on 1)

The optical apparatus of claim 1, further comprising an illumination source illuminating a light pattern of the first wavelength range and the second wavelength range.

### Claim 10

A method of collecting three dimensional information of an object, comprising:
receiving a first light beam of a first wavelength range through a first aperture of a mask in accordance with light reflected from the object; and
receiving a second light beam of a second wavelength range through a second aperture of the mask in accordance with the light reflected from the object,
wherein the second aperture is separated from the first aperture by the mask.

### Claim 11 (depends on 10)

The method of claim 10, further comprising receiving a third light beam of a third wavelength range through a third aperture of the mask in accordance with the light reflected from the object, wherein the third aperture is separated from both the first aperture and the second aperture by the mask.

### Claim 12

An optical apparatus of collecting three dimensional information of an object, comprising:
an optical detector detecting a first light beam of a first wavelength range and a second light beam of a second wavelength range different from the first wavelength range; and
a mask comprising:
a first optical module directly providing the first light beam in accordance with light reflected from the object to the optical detector; and
a second optical module directly providing the second light beam in accordance with light reflected from the object to the optical detector.

### Claim 13 (depends on 12)

The optical apparatus of claim 12, wherein the mask further comprises a first aperture and a second aperture separated from the first aperture by the mask.

### Claim 14 (depends on 13)

The optical apparatus of claim 13, wherein the first optical module is disposed in the first aperture and the second optical module is disposed in the second aperture.

### Claim 15 (depends on 12)

The optical apparatus of claim 12, wherein the first optical module comprises:
a first filter; and
a first lens between the object and the first filter,
wherein the first filter receives the light reflected from the object through the first lens and outputs the first light beam to the optical detector.

### Claim 16 (depends on 12)

The optical apparatus of claim 12, wherein the first optical module comprises:
a first lens; and
a first filter between the object and the first lens,
wherein the first filter receives the light reflected from the object and outputs the first light beam, wherein the first lens directs the first light beam to the optical detector.

### Claim 17 (depends on 12)

The optical apparatus of claim 12, wherein the first optical module comprises a lens having an optical film thereon, wherein the optical film receives the light reflected from the object and outputs the first light beam, wherein the lens directs the first light beam to the optical detector.

### Claim 18 (depends on 12)

The optical apparatus of claim 12, further comprising a lens between the object and the mask.

### Claim 19 (depends on 12)

The optical apparatus of claim 12, wherein the mask further comprises a third aperture separated from the first aperture and the second aperture by the mask and a third optical module in the third aperture, the third optical module directly provides a third light beam of a third wavelength range in accordance with light reflected from the object.

### Claim 20 (depends on 19)

The optical apparatus of claim 19, wherein the first optical module and the third optical module are switchable.
