# US 2013/0155649 A1 · Phosphor Device and Lighting Apparatus Comprising the Same

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- Number: US 2013/0155649 A1
- Document ID: US20130155649A1
- Status: Published application
- Kind: A1
- Application number: 13/818,399
- Filed: 2010-08-24
- Published: 2013-06-20
- Earliest claimed: 2010-08-24
- Assignees: OSRAM GmbH
- Inventors: Mathias Bruemmer; Ulrich Hartwig; Nico Morgenbrod; Matthias Morkel; Henning Rehn
- Web page: https://patentgrep.com/patent/US20130155649A1

## CPC

- G21K 4/00: Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens (photographic processes using X-ray intensifiers G03C5/17; discharge tubes comprising luminescent screens H01J1/62; cathode ray tubes for X-ray conversion with optical output H01J31/50)
- F21V 9/32: characterised by the arrangement of the photoluminescent material
- F21V 9/45: by adjustment of photoluminescent elements
- F21V 13/14: the elements being filters or photoluminescent elements, reflectors and refractors
- G03B 21/14: Details
- 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)
- H04N 9/315: {Modulator illumination systems (general applications of lighting devices F21V; general optical systems G02B; lamp houses for projectors not peculiar to the presence of an electronic spatial light modulator G03B21/20)}
- H04N 9/3158: {for controlling the spectrum}
- H04N 9/3197: {using light modulating optical valves}
- A61B 1/0653: {with wavelength conversion}
- G21K 2004/06: {with a phosphor layer}
- G21K: HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- 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)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A phosphor device (1) comprising a carrier member (2) having upper and lower faces; a phosphor layer (3) being arranged at the upper face of the carrier member (2), wherein the phosphor layer (3) comprises at least two tiled phosphor zones (R, G, B); an optical transmitting member (4) having a first end face (7) and a second end face (9), the optical transmitting member (4) being arranged at the top portion of the phosphor layer (3), whereby the first end face (7) of the optical transmitting member (4) covers at least a subarea (8) of each of the at least two phosphor zones (R, G, B).

## Claims

### Claim 1

A phosphor device comprising:
a carrier member having upper and lower faces;
a phosphor layer being arranged at the upper face of the carrier member, wherein the phosphor layer comprises at least two tiled phosphor zones;
an optical transmitting member having a first end face and a second end face, the optical transmitting member being arranged at the top portion of the phosphor layer, whereby the first end face of the optical transmitting member covers at least a subarea of each of the at least two phosphor zones.

### Claim 2 (depends on 1)

The phosphor device according to claim 1, wherein the phosphor zones are separated from each other by division bars.

### Claim 3 (depends on 1)

The phosphor device according to claim 1, wherein the phosphor zones are individually embedded into the carrier member.

### Claim 4 (depends on 1)

The phosphor device according to claim 1, wherein each phosphor zone comprises a phosphor component or a phosphor mixture.

### Claim 5 (depends on 4)

The phosphor device according to claim 4, wherein the phosphor component is any member of the following group: a phosphor for emitting red light, a phos-phor for emitting green light, a phosphor for emitting blue light.

### Claim 6 (depends on 4)

The phosphor device according to claim 4, wherein the phosphor mixture is suitable emitting white light.

### Claim 7 (depends on 1)

The phosphor device according to claim 1, wherein the phosphor device is configured to enable relative lateral movement between the first end face of the optical transmitting member and the phosphor zones.

### Claim 8 (depends on 7)

The phosphor device according to claim 7, wherein the phosphor zones are configured such that the proportions of the subareas of the phosphor zones covered by the first end face of the optical transmitting member change in directions of the relative lateral movement.

### Claim 9 (depends on 1)

The phosphor device according to claim 1, wherein the optical transmitting member is elongated and has a polygonal cross section.

### Claim 10 (depends on 1)

The phosphor device according to claim 1, further comprising a reflective zone arranged adjacent to a phosphor zone.

### Claim 11 (depends on 1)

A lighting apparatus comprising:
a phosphor device according to claim 1;
an exciting light source for emitting exciting light;
wherein the phosphor device and the exciting light source are arranged such that the exciting light is enabled to enter the phosphor device through the second end face of the optical transmitting member.

### Claim 12 (depends on 11)

The lighting apparatus according to claim 11, wherein the exciting light source comprises a laser light source.

### Claim 13 (depends on 11)

A method of operation of a lighting apparatus according to claim 11 comprising the following steps:
positioning the optical transmitting member such that at least subareas of the at least two phosphor zones of the phosphor layer are covered by the first end face of the optical transmitting member;
guiding the exciting light for entering the optical transmitting member through its second end face and for impinging on the phosphor layer through its first end face.

### Claim 14 (depends on 13)

The method according to claim 13, further comprising the steps of collecting and mixing the light, wave-length-converted by the area of the phosphor layer irradiated by the exciting light, with the optical transmitting member.

### Claim 15 (depends on 13)

The method according to claim 13, further comprising the step of moving the optical transmitting member over the surface of the phosphor layer for adjusting the properties of the wavelength-converted and mixed light, thereby covering various subareas of the phosphor zones of the phosphor layer, resulting in various proportions of irradiated subareas of the phosphor zones.
