# US 2024/0201085 A1 · Optical measurement device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2024/0201085 A1
- Document ID: US20240201085A1
- Status: Published application
- Kind: A1
- Application number: 18/554,145
- Filed: 2022-03-15
- Published: 2024-06-20
- Earliest claimed: 2021-04-07
- Assignees: Ushio Denki Kabushiki Kaisha
- Applicants: Ushio Denki Kabushiki Kaisha
- Inventors: Toshikazu NAGASHIMA
- Web page: https://patentgrep.com/patent/US20240201085A1

## CPC

- G01N 21/359: using near infrared light
- G01N 21/49: within a body or fluid
- G01N 21/255: {Details, e.g. use of specially adapted sources, lighting or optical systems}
- G01N 21/84: Systems specially adapted for particular applications
- G01N 21/8806: {Specially adapted optical and illumination features}
- G01N 21/474: {Details of optical heads therefor, e.g. using optical fibres}
- G01N 2021/4707: {Forward scatter; Low angle scatter}
- G01N 2021/4735: {Solid samples, e.g. paper, glass}
- G01N 2021/845: {Objects on a conveyor}
- G01N 2021/8835: {Adjustable illumination, e.g. software adjustable screen}
- G01N 2021/8845: {Multiple wavelengths of illumination or detection}
- G01N 2201/04: Batch operation; multisample devices
- G01N 2201/06113: Coherent sources; lasers
- G01N 2201/0636: Reflectors
- G01N 2201/0638: Refractive parts
- G01N 2201/0696: Pulsed
- G01N 2201/0697: Pulsed lasers
- G01N 2201/1042: X, Y scan, i.e. object moving in X, beam in Y
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

A conveyance device supports and conveys an object. The conveyance device has a support portion in which an opening narrower than the object is provided at a position where the object is supported. A lighting device irradiates a first surface of the object with measurement light having a wavelength changing over time through the opening of the support portion. A light receiving device detects object light that is diffusely transmitted light emitted from a second surface of the object.

## Claims

### Claim 1

An optical measurement device comprising:
a conveyance device configured to support and convey an object and including a support portion configured to support the object;
a lighting device configured to irradiate a first surface of the object with measurement light having a wavelength changing over time through the support portion; and
a light receiving device configured to detect diffusely transmitted light emitted from a second surface of the object.

### Claim 2 (depends on 1)

The optical measurement device according to claim 1, wherein
the support portion has an opening narrower than the object, and
the lighting device irradiates the first surface of the object with the measurement light through the opening of the support portion.

### Claim 3 (depends on 2)

The optical measurement device according to claim 2, wherein the conveyance device includes a plurality of the support portions each configured to support the object, each of the plurality of support portions including a recessed portion provided on a common surface of the conveyance device, and the opening is a through hole formed in a bottom surface of the recessed portion.

### Claim 4 (depends on 1)

The optical measurement device according to claim 1, wherein the lighting device includes a folding mirror provided inside the conveyance device, the folding mirror reflecting measurement light incident from a side surface of the conveyance device toward the first surface of the object.

### Claim 5 (depends on 1)

The optical measurement device according to claim 1, wherein
the light receiving device includes:
a light sensor having a size smaller than the object; and
a condensing optical system including a lens having a size larger than the object.

### Claim 6 (depends on 1)

The optical measurement device according to claim 1, wherein the light receiving device includes a light sensor, and a component of the diffusely transmitted light of the object emitted in a direction deviated from an optical axis of the measurement light is incident on the light sensor.

### Claim 7

An optical measurement device comprising:
a conveyance device configured to support and convey an object;
a lighting device configured to irradiate the object with measurement light having a wavelength changing over time; and
a light receiving device configured to detect diffusely transmitted light emitted from the object, wherein
the light receiving device includes:
a light sensor having a size smaller than the object; and
a condensing optical system including a lens having a size larger than the object.