# US 11,441,768 B1 · Adjustable lighting device module and system

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- Number: US 11,441,768 B1
- Document ID: US11441768B1
- Status: Granted
- Kind: B1
- Application number: 17/395,323
- Filed: 2021-08-05
- Granted: 2022-09-13
- Earliest claimed: 2021-08-05
- Assignees: Troy-CSL Lighting, Inc.
- Applicants: Troy-CSL Lighting Inc.
- Inventors: Joshua Portinga; Calvin Wong
- Web page: https://patentgrep.com/patent/US11441768B1

## CPC

- F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling}
- F21V 29/73: the elements being adjustable with respect to each other, e.g. hinged
- F21S 2/005: {of modular construction}
- F21V 19/02: with provision for adjustment, e.g. for focusing
- F21V 21/30: Pivoted housings or frames
- F21Y 2115/10: Light-emitting diodes [LED]
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A lighting device system has a lighting device module including a movable heat sink member configured to be received within the inner volume of a module housing. At least one rail on an inner surface of the module housing or on the movable heat sink member is received in a corresponding one or more grooves on the other of the inner surface of the module housing or the movable heat sink member. The movable heat sink member is slidably movable along the at least one rail or groove. A light source is attached to the heat sink member for directing light out of the first open end of the module housing, and is movable with the heat sink member to change a tilt angle of the light source.

## Claims

### Claim 1

A lighting device system comprising at least one lighting device module, each lighting device module comprising:
a module housing having an inner volume, at least one inner surface at least partially surrounding the inner volume, a first open end and a second end;
a movable heat sink member configured to be received within the inner volume of the module housing;
at least one rail on at least one of the at least one inner surface of the module housing or on the movable heat sink member;
at least one groove on the other of the at least one inner surface of the module housing or the movable heat sink member, the at least one groove receiving the at least one rail when the movable heat sink member is received within the inner volume of the module housing;
the movable heat sink member being slidably movable along the at least one rail or the at least one groove;
a light source attached to the heat sink member for directing light out of the first open end of the module housing, the light source being movable with the heat sink member to change a tilt angle of the light source with movement of the heat sink member;
wherein each rail has an elongated lengthwise dimension extending along an elongated lengthwise dimension of the groove in which it is received, when the movable heat sink member is received within the inner volume of the module housing; and
wherein each groove has an inner wall facing and engaging a surface of a respective one of the rails for providing thermal communication between the movable heat sink member and the module housing.

### Claim 2 (depends on 1)

The lighting device system of claim 1, wherein the at least one lighting device module comprises a plurality of lighting device modules.

### Claim 3 (depends on 2)

The lighting device system of claim 2, further comprising a base plate having at least one opening through which the plurality of lighting device modules are selectively received and held, or selectively removed from a received position.

### Claim 4 (depends on 3)

The lighting device system of claim 3, further comprising a cover member that covers the base plate and the plurality of lighting device modules, the base plate being supported for rotation relative to the cover member.

### Claim 5 (depends on 2)

The lighting device system of claim 2, further comprising a trim panel connected to the plurality of lighting device modules, and at least one lens connected to the trim panel.

### Claim 6 (depends on 1)

The lighting device system of claim 1, wherein the module housing comprises a first housing side and a second housing side, the first and second housing sides being separable and connectable to each other, each housing side having one of the inner surfaces that at least partially surrounds the inner volume when the first and second housing sides are connected, on which the at least one rail or the at least one groove is provided.

### Claim 7 (depends on 6)

The lighting device system of claim 6, wherein the module housing defines an axis extending from the first end to the second end, and wherein the first and second housing sides are separable on a plane along the axis of the module housing.

### Claim 8 (depends on 6)

The lighting device system of claim 6, further comprising at least one tensioning ring that surrounds the module housing to help hold the first and second housing sides together, wherein each of the first and second housing sides has at least one recessed groove section that forms an annular groove in which the at least one tensioning ring is located when the first and second housing sides are connected.

### Claim 9 (depends on 1)

The lighting device system of claim 1 further comprising at least one biasing device for pressing the wall of the at least one groove with the surface of the at least one rail when the movable heat sink member is received within the inner volume of the module housing, to improve thermal communication between the heat sink member and the module housing.

### Claim 10 (depends on 9)

The lighting device system of claim 9, wherein the at least one biasing device comprises at least one spring-biased ball or plunger partially extending from a second inner wall of each groove.

### Claim 11 (depends on 1)

The lighting device system of claim 1, wherein the heat sink member has a first surface on which the light source is mounted, the heat sink member has a second surface that faces an inner surface of the module housing when the heat sink member is in the second position, the second surface of the heat sink member defining an oblique angle relative to the first surface of the heat sink member, to increase the oblique angle at which the optic member emits light when the heat sink member is in the second position.

### Claim 12 (depends on 11)

The lighting device system of claim 11, wherein the module housing has a side opening separate from the first open end, that receives a portion of the heat sink member to further increase the oblique angle at which the optic member emits light when the heat sink member is in the second position.

### Claim 13 (depends on 1)

The lighting device system of claim 1, wherein the at least one rail is provided on the at least one inner surface of the module housing, and wherein the at least one groove is provided on the movable heat sink member.

### Claim 14 (depends on 1)

The lighting device system of claim 1, wherein the at least one groove has an arc shape and wherein the at least one rail has a corresponding arc shape to guide the movable heat sink member in an arc-shaped path of movement.

### Claim 15 (depends on 1)

The lighting device system of claim 1, further comprising:
an optic member arranged to receive light from the light source and to emit at least some of the light toward the first open end of the module housing, the optic member being attached to the movable heat sink member and movable with the movable heat sink member;
wherein the movable heat sink member is slidably moveable along a range of motion between a first position in which the optic member emits light in an axial direction of the module housing and a second position in which the optic member emits light at an oblique angle relative to the axial direction of the module housing.

### Claim 16

A lighting device system comprising at least one lighting device module, each lighting device module comprising:
a module housing having an inner volume, at least one inner surface at least partially surrounding the inner volume, a first open end and a second end;
a movable heat sink member configured to be received within the inner volume of the module housing;
at least one rail on at least one of the at least one inner surface of the module housing or on the movable heat sink member;
at least one groove on the other of the at least one inner surface of the module housing or the movable heat sink member, the at least one groove receiving the at least one rail when the movable heat sink member is received within the inner volume of the module housing;
the movable heat sink member being slidably movable along the at least one rail or the at least one groove;
a light source attached to the heat sink member for directing light out of the first open end of the module housing, the light source being movable with the heat sink member to change a tilt angle of the light source with movement of the heat sink member; and
an optic member having a focal point, the optic member being arranged to receive light from the light source and to emit at least some of the light toward the first open end of the module housing, wherein the arc shape of the at least one rail forms an arc of a circle having a center corresponding to the focal point of the optic member;
wherein the at least one rail has an arc shape to guide the movable heat sink member in an arc-shaped path of movement.

### Claim 17

A lighting device system comprising at least one lighting device module, each lighting device module comprising:
a module housing having an inner volume, at least one inner surface at least partially surrounding the inner volume, a first open end and a second end;
a movable heat sink member configured to be received within the inner volume of the module housing;
at least one rail on at least one of the at least one inner surface of the module housing or on the movable heat sink member;
at least one groove on the other of the at least one inner surface of the module housing or the movable heat sink member, the at least one groove receiving the at least one rail when the movable heat sink member is received within the inner volume of the module housing;
the movable heat sink member being slidably movable along the at least one rail or the at least one groove;
a light source attached to the heat sink member for directing light out of the first open end of the module housing, the light source being movable with the heat sink member to change a tilt angle of the light source with movement of the heat sink member;
an optic member arranged to receive light from the light source and to emit at least some of the light toward the first open end of the module housing, the optic member being attached to the movable heat sink member and movable with the movable heat sink member;
wherein the movable heat sink member is slidably moveable along a range of motion between a first position in which the optic member emits light in an axial direction of the module housing and a second position in which the optic member emits light at an oblique angle relative to the axial direction of the module housing; and
wherein the module housing has a side opening separate from the first open end, that receives a portion of the heat sink member to increase the oblique angle at which the optic member emits light when the heat sink member is in the second position.

### Claim 18

A method of making a lighting device system including making a lighting device module comprising:
providing a module housing having an inner volume, at least one inner surface at least partially surrounding the inner volume, a first open end and a second end;
receiving a movable heat sink member within the inner volume of the module housing;
providing at least one rail on at least one of the at least one inner surface of the module housing or on the movable heat sink member;
providing at least one groove on the other of the at least one inner surface of the module housing or the movable heat sink member,
receiving the at least one rail in the at least one groove when the movable heat sink member is received within the inner volume of the module housing, to allow the movable heat sink member to be slidably movable along the at least one rail or the at least one groove; and
attaching a light source to the heat sink member for directing light out of the first open end of the module housing, the light source being movable with the heat sink member to change a tilt angle of the light source with movement of the heat sink member;
wherein each rail has an elongated lengthwise dimension and is received within a respective one of the grooves with its lengthwise dimension extending along an elongated lengthwise dimension of the groove in which it is received;
wherein each groove has an inner wall facing and engaging a surface of a respective one of the rails for providing thermal communication between the movable heat sink member and the module housing.

### Claim 19 (depends on 18)

The method of claim 18 further comprising pressing the wall of the at least one groove and the surface of the at least one rail together with a biasing device, when the movable heat sink member is received within the inner volume of the module housing, to improve thermal communication between the heat sink member and the module housing.

### Claim 20 (depends on 18)

The method of claim 18, wherein the at least one lighting device module comprises a plurality of lighting device modules, the method further comprising:
providing a base plate having at least one opening through which the plurality of lighting device modules are selectively received and held, or selectively removed from a received position;
covering the base plate and the plurality of lighting device modules with a cover member; and
supporting the base plate for rotation relative to the cover member.