Adjustable lighting device module and system

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.

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.

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.