# US 10,481,389 B2 · Curved-surface apparatus for wavelength converting

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- Number: US 10,481,389 B2
- Document ID: US10481389B2
- Status: Granted
- Kind: B2
- Application number: 16/206,459
- Filed: 2018-11-30
- Published: 2019-03-28
- Granted: 2019-11-19
- Earliest claimed: 2016-12-12
- Assignees: Iview Displays (Shenzhen) Company Ltd.
- Applicants: Iview Displays (Shenzhen) Company Ltd.
- Inventors: Zhiqiang Gao; Steve Yeung; Augustus Yeung; Manying Ning
- Web page: https://patentgrep.com/patent/US10481389B2

## CPC

- G02B 26/008: {in the form of devices for effecting sequential colour changes, e.g. colour wheels}
- F21V 9/45: by adjustment of photoluminescent elements
- G03B 21/16: Cooling; Preventing overheating
- G03B 21/204: {using secondary light emission, e.g. luminescence or fluorescence (using different colours G03B33/00; if related to video signals H04N9/3197)}
- G03B 33/08: Sequential recording or projection (G03B33/02, G03B33/04, G03B33/06 take precedence)
- G03B 21/2013: {Plural light sources}
- G03B 21/2066: {Reflectors in illumination beam (in projection beam G03B21/28)}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)

## Abstract

A curved-surface apparatus for wavelength converting. The apparatus includes: a light source excitation unit comprising a plurality of light source exciters for emitting identical or different excited light, respectively; a wavelength conversion unit provided with annular structure; a plurality of component sets circularly disposed on a curved surface of the annular structure and divided into a plurality of component regions provided with predetermined color wavelength conversion substances; a beam splitter set configured to reflect the excited light emitted by the light source excitation unit and transmit predetermined light; a condenser lens set disposed near the wavelength conversion unit.

## Claims

### Claim 1

A curved-surface apparatus for wavelength converting, comprising
a light source excitation unit comprising a plurality of light source exciters for emitting identical or different excited light, respectively;
a wavelength conversion unit provided with an annular structure;
a plurality of component sets circularly disposed on a curved surface of the annular structure and divided into a plurality of component regions provided with predetermined color wavelength conversion substances;
a beam splitter set configured to reflect the excited light emitted by the light source excitation unit and transmit a predetermined light;
a condenser lens set disposed near the wavelength conversion unit;
wherein the excited light emitted by the light source exciter is reflected by the beam splitter set, passes through the condenser lens set, and penetrates the component region to generate the predetermined light having a corresponding color and the predetermined light passes through the condenser lens set and projects through the beam splitter set.

### Claim 2 (depends on 1)

The curved-surface apparatus according to claim 1, wherein one of the plurality of component sets comprises a first component region having red wavelength conversion substances, a second component region having green wavelength conversion substances, and a third component region being a blank region.

### Claim 3 (depends on 2)

The curved-surface apparatus according to claim 2, wherein the light source excitation unit comprises two blue light source exciters and the beam splitter set is provided with a first beam splitter configured to reflect blue light and transmit red light and green light.

### Claim 4 (depends on 3)

The curved-surface apparatus according to claim 3, wherein the two blue light source exciters are disposed opposite to each other and separated by the first beam splitter;
wherein a blue light emitted by one of the blue light source exciters is reflected at the first beam splitter, passes through the condenser lens set and penetrates the wavelength conversion unit, while another blue light emitted by the other one blue light source exciter is reflected at the first beam splitter and emitted outwards.

### Claim 5 (depends on 1)

The curved-surface apparatus according to claim 1, wherein one of the plurality of component sets comprises a component region having green wavelength conversion substances.

### Claim 6 (depends on 5)

The curved-surface apparatus according to claim 5, wherein the light source excitation unit comprises two blue light source exciters and one red light source exciter and the beam splitter set comprises: a third beam splitter configured to reflect blue light and transmit green light and a fourth beam splitter configured to reflect the blue light and transmit the green light and red light.

### Claim 7 (depends on 6)

The curved-surface apparatus according to claim 6, wherein the two blue light source exciters are disposed opposite to each other and separated by the third beam splitter;
an optical axes of the two blue light source exciters being in a same straight line or parallel;
wherein a red light emitted by the red light source exciter is reflected at the fourth beam splitter and a blue light emitted by one of the blue light source exciters is reflected at the third beam splitter, passes through the condenser lens set and penetrates the wavelength conversion unit, while another blue light emitted by the other one blue light source exciter is reflected at the third beam splitter and project through the fourth beam splitter.

### Claim 8 (depends on 1)

The curved-surface apparatus according to claim 1, wherein the component sets are each provided with a marker for identifying an initial position of each component set;
wherein a working state of the light source exciter of the light source excitation unit is determined according to the initial position of each component set.

### Claim 9

A curved-surface apparatus for wavelength converting, comprising:
a light source excitation unit comprising a blue light source exciter for emitting blue light;
a wavelength conversion unit provided with an annular structure;
a component set disposed on a curved-surface of the annular structure and comprising a first component region having red wavelength conversion substances, a second component region having green wavelength conversion substances, and a third component region configured to reflect all colored light;
a beam splitter set configured to reflect red light and green light and transmit blue light;
a second condenser lens set and a third condenser lens set which are disposed near the wavelength conversion unit;
a first reflector configured to reflect all colored light;
wherein a red light or blue light is generated respectively, when the blue light emitted by the blue light source exciter obliquely penetrates the first component region or the second component region of the wavelength conversion unit, passes through the second condenser set and is reflected at the second beam splitter set to project;
the blue light is reflected when the blue light emitted by the blue light source exciter obliquely penetrates the third component region, passes the third condenser set, is reflected to the beam splitter set by the first reflector and projected through the beam splitter set.

### Claim 10 (depends on 9)

The curved-surface apparatus according to claim 9, wherein the component set is provided with a marker for identifying an initial position of the component set;
wherein a working state of the light source exciter of the light source excitation unit is determined according to the initial position of the component set.