Apparatus and method for assembling optical module

{
  "publication_number": "US11899221B2",
  "country": "US",
  "kind": "B2",
  "title": "Apparatus and method for assembling optical module",
  "abstract": "An apparatus and a method for assembling optical module. The apparatus includes: a plurality of fixtures, an alignment mechanism, a power supply, a spectroscopic prism with a light incident surface close to the plurality of optical modules to be aligned, a first color image collecting means close to a first light emitting surface of the spectroscopic prism and a second color image collecting means with a second light emitting surface of the spectroscopic prism; the controller is configured to determine a light spot that does not meet a quality requirement according to the positions and/or sizes of the plurality of imaging light spots, and generate a corresponding aligning instruction, and determine a to-be-assembled lens necessary to be adjusted according to a color of the light spot that does not meet quality requirements, and output the aligning instruction to an alignment mechanism to adjust a position of the lens necessary to be adjusted.",
  "claims": [
    "1. An apparatus for assembling optical module, comprising: a plurality of fixtures configured to fix a plurality of to-be-assembled optical parts respectively, an alignment mechanism configured to place a plurality of to-be-assembled lenses to designated positions of the plurality of to-be-assembled optical parts respectively to obtain a plurality of optical modules to be aligned; and a power supply configured to supply power to the plurality of optical modules to be aligned; a spectroscopic prism with a light incident surface close to the plurality of optical modules to be aligned, a first color image collecting units close to a first light emitting surface of the spectroscopic prism and being coaxial with the first light emitting surface, and a second color image collecting units with a second light emitting surface of the spectroscopic prism and being coaxial with the second light emitting surface; the first color image collecting units and the second color image collecting units are respectively configured to collect positions and sizes of a plurality of imaging light spots corresponding to the plurality of optical modules to be aligned, and feed the positions and sizes to a controller; the controller is configured to determine a light spot that does not meet a quality requirement according to the positions and/or sizes of the plurality of imaging light spots, and generate a corresponding aligning instruction, and determine a to-be-assembled lens necessary to be adjusted according to a color of the light spot that does not meet quality requirements, and output the aligning instruction to an alignment mechanism holding the lens necessary to be adjusted to adjust a position of the lens necessary to be adjusted.",
    "2. The apparatus according to claim 1, further comprising: a positive lens provided between the first color image collecting units and the spectroscopic prism and being coaxial with the first color image collecting units.",
    "3. The apparatus according to claim 2, wherein the positive lens comprises an aspherical positive lens.",
    "4. The apparatus according to claim 1, wherein the spectroscopic prism comprises two right-angle prisms with oblique surfaces bonded, and bonded surfaces are coated with a transflective dielectric film having a transmittance and a reflectance in a ratio of 1:1.",
    "5. The apparatus according to claim 1, wherein the alignment mechanism further comprises: a first robot arm electrically connected to the controller, and an integration mechanism mounted on the first robot arm, and a plurality of aligning heads are integrated on the integration mechanism.",
    "6. The apparatus according to claim 1, further comprising: a dispensing mechanism; the dispensing mechanism comprises a second robot arm electrically connected to the controller and a UV glue dispensing syringe fixed on the second robot arm; the dispensing mechanism is configured to perform dispensing on the plurality of to-be-assembled optical parts according to a dispensing instruction of the controller.",
    "7. The apparatus according to claim 6, wherein the dispensing mechanism further comprises: a third image collecting units fixed on the second robot arm.",
    "8. The apparatus according to claim 5, wherein a UV lamp is provided on the alignment mechanism and electrically connected to the controller.",
    "9. The apparatus according to claim 1, wherein a sensor is provided on each of the plurality of fixtures and configured to detect whether a to-be-assembled optical part is placed on the fixture.",
    "10. A method for assembling optical module applicable to the apparatus according to claim 1, comprising: controlling the alignment mechanism to place the plurality of to-be-assembled lenses to designated positions of the plurality of to-be-assembled optical parts respectively to obtain the plurality of optical modules to be aligned; controlling the power supply to supply power to the plurality of optical modules to be aligned, so that the plurality of optical modules to be aligned generate images; collecting, by the first color image collecting units and the second color image collecting units, positions and sizes of the plurality of imaging light spots corresponding to the plurality of optical modules to be aligned, and feeding the positions and sizes to the controller; determining a light spot that does not meet a quality requirement according to the positions and/or sizes of the plurality of imaging light spots, and generating a corresponding aligning instruction, and determining the to-be-assembled lens necessary to be adjusted according to a color of the light spot that does not meet quality requirements; outputting the aligning instruction to the alignment mechanism holding the lens necessary to be adjusted to adjust a position of the lens necessary to be adjusted."
  ],
  "cpc": [
    "G02B 27/62",
    "B23P 19/10",
    "B23P 21/00",
    "G02B 7/005",
    "G02B 7/023",
    "G02B 7/025",
    "G05B 19/41805",
    "G05B 2219/32368",
    "G05B 2219/45064",
    "G05B 2219/45178",
    "G06T 2207/10024",
    "G06T 7/0004",
    "G06T 7/50",
    "G06T 7/70",
    "Y02P 90/02"
  ],
  "assignees": [
    "GOER OPTICAL TECH CO LTD"
  ],
  "filing_date": "2018-09-06",
  "publication_date": "2024-02-13",
  "grant_date": "2024-02-13",
  "priority_date": "2017-10-17",
  "application_number": "US-201816753308-A",
  "family_id": "61696167",
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}