Light Generating Apparatus

• US 20180188460A1
• Filed: 01/05/2018
• Published: 07/05/2018
• Est. Priority Date: 01/05/2017
• Status: Abandoned Application

• Current Assignee: Corning Incorporated
• Original Assignee: Versalume LLC
• Application Number:
  US15/863,175
• Publication Number:
  US 20180188460A1
• Time in Patent Office: Days
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/4263 of the transisitor outline [TO] can type
• CPC Class Codes: G02B 6/4267 Reduction of thermal stress, e.g. by selecting thermal coefficient of materials
• CPC Class Codes: G02B 6/4269 with heat sinks or radiation fins
• CPC Class Codes: G02B 6/428 containing printed circuit boards [PCB]
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
• CPC Class Codes: G02B 6/4296 coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
• CPC Class Codes: H01S 5/02212 Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis
• CPC Class Codes: H01S 5/02251 using optical fibres
• CPC Class Codes: H01S 5/02325 Mechanically integrated components on mount members or optical micro-benches
• CPC Class Codes: H01S 5/02469 Passive cooling, e.g. where heat is removed by the housing as a whole or by a heat pipe without any active cooling element like a TEC
• CPC Class Codes: H01S 5/042 Electrical excitation ; Circuits therefor monolithically integrated laser drive components H01S5/0261

Abstract

A light generating apparatus that is capable of being coupled to a connector that supports the proximal end of a light diffusing fiber. According to one implementation the light generating apparatus includes a laser having a housing and a focus lens through which light generated by the laser is emitted. The apparatus also includes a heat removing metallic receptacle that has a first end that is thermally connected to the laser housing and a second end that is connectable to the light diffusing fiber connector. The metallic receptacle has an internal cavity that provides a direct line of sight between the focus lens of the laser and the proximal end of the light diffusing fiber when the connector is coupled to the second end of the metallic receptacle.

Claims

1. A light generating apparatus that is capable of being coupled to a light diffusing fiber connector that supports the proximal end of a light diffusing fiber, the apparatus comprising:

a laser having a laser housing and a focus lens through which a light beam generated by the laser is emitted,

a heat removing metallic receptacle having a first end that is thermally connected to the laser housing and a second end that is connectable to the light diffusing fiber connector, the metallic receptacle having an internal cavity that is configured to provide an unobstructed pathway for the generated light beam to pass from the focus lens of the laser and the proximal end of the light diffusing fiber when the light diffusing fiber connector is coupled to the second end of the metallic receptacle.

2. The light generating apparatus according to claim 1, further comprising a light generating apparatus housing onto which the metallic receptacle is removably attached, at least a portion of the laser and metallic receptacle residing inside the light generating apparatus housing.

3. The light generating apparatus according to claim 2, wherein the metallic receptacle is removably attached to the light generating apparatus housing without the use of an adhesive.

4. The light generating apparatus according to claim 2, wherein the metallic receptacle comprises an outer surface with one or more male parts and the light generating apparatus housing comprises one or more female parts in which the one or more male parts are housed.

5. The light generating apparatus according to claim 4, wherein the one or more male parts are press-fit into the one or more female parts.

6. The light generating apparatus according to claim 2, wherein the light generating apparatus housing comprises one or more male parts and the metallic receptacle comprises one or more female parts in which the one or more male parts are housed.

7. The light generating apparatus according to claim 6, wherein the one or more male parts are press-fit into the one or more female parts.

8. The light generating apparatus according to claim 1, wherein the metallic receptacle is made from a material selected from a group consisting of aluminum, copper, brass and zinc.

9. The light generating apparatus according to claim 1, wherein the metallic receptacle has a heat transfer coefficient of at least greater than 100 W/m·

K.

10. The light generating apparatus according to claim 1, further comprising a thermal grease disposed between a surface of the metallic receptacle and a surface of the laser housing.

11. The light generating apparatus according to claim 2, further comprising a heat spreader that is supported within the light generating apparatus housing, the metallic receptacle being thermally coupled to the heat spreader.

12. The light generating apparatus according to claim 11, wherein the heat spreader has an external surface area that is greater than an external surface area of the metallic receptacle.

13. The light generating apparatus according to claim 12, further comprising a thermal grease disposed between the metallic receptacle and the heat spreader.

14. The light generating apparatus according to claim 11, wherein the light generating apparatus housing has attached first and second parts that are separable from one another, the metallic receptacle being removable attached to the first part without the use of an adhesive, the heat spreader being attached to the second part.

15. The light generating apparatus according to claim 1, further comprising:

a first printed circuit board electrically connected to an energy source,

a second printed circuit board on which the laser is mounted and electrically connected, the second printed circuit board being electrically coupled to the first printed circuit board and removably attached to the first printed circuit board, the second printed circuit board including a microcontroller.

16. The light generating apparatus according to claim 15, wherein the first printed circuit board includes a sensor that is configured to generate an electrical output signal deliverable to the microcontroller, the microcontroller being configured to generate an electrical output signal in response to the electrical output signal of the sensor, the electrical output signal of the microcontroller being indicative of a type of light to be emitted by the laser.

17. The light generating apparatus according to claim 16, wherein the second printed circuit board includes circuitry to receive and convert the electrical output signal of the microcontroller signal received from the first printed circuit board into a current that is deliverable to the laser to generate the light beam.

18. The light generating apparatus according to claim 16, wherein the first printed circuit board comprises an antenna that is capable of receiving a short-range control signal from a remote controller.

19. The light generating apparatus according to claim 18, wherein the short-range control signal is a Bluetooth signal.