# US 2025/0093261 A1 · Line-illuminating light source for imaging apparatus, imaging apparatus including the same, and skin analyzing apparatus including the imaging apparatus

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- Number: US 2025/0093261 A1
- Document ID: US20250093261A1
- Status: Published application
- Kind: A1
- Application number: 18/887,698
- Filed: 2024-09-17
- Published: 2025-03-20
- Earliest claimed: 2023-09-18
- Assignees: Samsung Electronics Co., Ltd.; Chung Ang University Industry Academic Cooperation Foundation
- Applicants: Samsung Electronics Co., Ltd.; CHUNG ANG University Industry Academic Cooperation Foundation
- Inventors: Unjeong KIM; Hojung KIM; Hyungbin SON; Suyeon LEE
- Web page: https://patentgrep.com/patent/US20250093261A1

## CPC

- A61B 5/441: {Skin evaluation, e.g. for skin disorder diagnosis}
- G01N 21/33: using ultraviolet light (G01N21/39 takes precedence)
- A61B 5/0077: {Devices for viewing the surface of the body, e.g. camera, magnifying lens}
- G01N 21/27: using photo-electric detection (G01N21/31 takes precedence){; circuits for computing concentration (logarithmic circuits G06G7/24; photometric circuits in general G01J)}
- G01N 21/4738: {Diffuse reflection (precedence is given to G01N21/55 - G01N21/57 if specular component is taken into consideration), e.g. also for testing fluids, fibrous materials}
- G01N 2021/1765: {Method using an image detector and processing of image signal}
- G01N 2021/4764: {Special kinds of physical applications}
- G01N 2201/0636: Reflectors
- G01N 2201/0638: Refractive parts
- G01N 2201/064: Stray light conditioning
- G01N 2201/0686: Cold filter; IR filter
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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

An imaging apparatus may include a light source emitting linear light, a light reflector configured to reflect the linear light incident from the light source unit, a first filter configured to filter the linear light reflected from the light reflector, a light transmission reflector configured to reflect the linear light passing through the first filter toward an object and transmit light incident from the object, a second filter configured to filter the light that has passed through the light transmission reflector after being incident from the object, and a camera configured to capture the light passing through the second filter.

## Claims

### Claim 1

A line-illuminating light source comprising:
a light emitter;
a first lens provided at a position where light emitted from the light emitter is incident;
a slit comprising a linear opening through which the light incident from the first lens passes; and
a second lens provided at a position where the light passing through the linear opening is incident, and configured to direct the light toward an object.

### Claim 2 (depends on 1)

The line-illuminating light source of claim 1, wherein the first lens is an aspherical lens.

### Claim 3 (depends on 1)

The line-illuminating light source of claim 1, wherein the second lens is an achromatic lens.

### Claim 4 (depends on 1)

The line-illuminating light source of claim 1, wherein the light emitter is configured to emit ultraviolet light.

### Claim 5 (depends on 1)

The line-illuminating light source of claim 1, wherein the light emitter, the first lens, the slit, and the second lens are aligned on a same optical axis.

### Claim 6

An imaging apparatus comprising:
a light source configured to emit linear light;
a light reflector configured to reflect the linear light incident from the light source;
a first filter configured to filter the linear light reflected from the light reflector;
a light transmission reflector configured to reflect the linear light passing through the first filter toward an object and transmit light incident from the object;
a second filter configured to filter the light that has passed through the light transmission reflector after being incident from the object; and
a camera configured to capture the light passing through the second filter, wherein the light transmission reflector, the second filter, and the camera are aligned on a same optical axis.

### Claim 7 (depends on 6)

The imaging apparatus of claim 6, wherein the light source comprises:
a light emitter;
a first lens provided at a position where the light emitted from the light emitter is incident;
a slit comprising a linear opening through which the light incident from the first lens passes; and
a second lens provided at a position where the light passing through the linear opening is incident.

### Claim 8 (depends on 7)

The imaging apparatus of claim 7, wherein the light emitter is configured to emit ultraviolet light.

### Claim 9 (depends on 6)

The imaging apparatus of claim 6, wherein the camera comprises a hyperspectral image sensor.

### Claim 10 (depends on 6)

The imaging apparatus of claim 6, wherein the light reflector is configured to rotate about two axes perpendicular to each other so that the linear light incident from the light source moves toward the object in two different perpendicular directions.

### Claim 11 (depends on 6)

The imaging apparatus of claim 6, wherein the light transmission reflector is configured to reflect ultraviolet rays and transmit visible light.

### Claim 12 (depends on 6)

The imaging apparatus of claim 6, wherein the light source, the light reflector, the first filter, and the light transmission reflector are aligned on a same optical axis.

### Claim 13 (depends on 6)

The imaging apparatus of claim 6, wherein the light source, the light reflector, the first filter, the light transmission reflector, the second filter, and the camera are aligned so that light reflected from the light transmission reflector and radiated to the object and light incident from the object to the light transmission reflector due to the radiated light are parallel to each other.

### Claim 14 (depends on 6)

The imaging apparatus of claim 6, wherein the light reflector comprises a folding mirror.

### Claim 15 (depends on 6)

The imaging apparatus of claim 6, wherein the light reflector comprises a dichroic mirror.

### Claim 16 (depends on 6)

The imaging apparatus of claim 6, wherein the first filter comprises an excitation filter.

### Claim 17 (depends on 6)

The imaging apparatus of claim 6, wherein the second filter comprises an emission filter.

### Claim 18 (depends on 6)

A skin analyzing apparatus comprising:
a mask structure configured to cover a surface of an object; and
the imaging apparatus of claim 6 provided in an region of the mask structure facing the surface of the object.

### Claim 19 (depends on 18)

The skin analyzing apparatus of claim 18, wherein the imaging apparatus is mounted in the mask structure.

### Claim 20 (depends on 18)

The skin analyzing apparatus of claim 18, wherein the imaging apparatus is attachable to and detachable from the mask structure.
