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CN-122018167-A - Color combining optical engine and assembling method thereof

CN122018167ACN 122018167 ACN122018167 ACN 122018167ACN-122018167-A

Abstract

The application discloses a color combining optical engine and an assembling method thereof. The color combining camera comprises a bracket, a color combining prism and at least one projection component. The bracket comprises a containing space and at least one opening, the color combining prism is arranged in the containing space, the projection components are arranged in one-to-one correspondence with the openings, and the projection paths of the at least one projection component are converged to the color combining prism and projected. The bracket also comprises a window, wherein the window and the opening are positioned on different sides of the bracket, and the window is used for enabling ultraviolet rays to irradiate into the bracket. Therefore, through the window opening arranged on the side of the bracket, ultraviolet light can accurately cover all glued glue layers of the projection components by utilizing the ultraviolet light transmittance and the optical guiding function of the color combining prism, and the pre-curing conversion rate is improved. After the glue is fully solidified, the bonding strength is improved, the stability of the relative positions of the projection assembly and the color combining prism is improved, the error of light convergence precision is reduced, the color uniformity of the projection picture of the color combining camera is improved, and the fusion effect is obviously optimized.

Inventors

  • CUI TING

Assignees

  • 昆山丘钛智行致远科技有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (11)

  1. 1. A color combining machine, comprising: a bracket comprising a containing space and at least one opening; The color combining prism is arranged in the accommodating space; The projection components are arranged in one-to-one correspondence with the openings, and the projection paths of the at least one projection component are converged to the color combining prism and projected; the bracket further comprises a window, the window and the opening are positioned on different sides of the bracket, and the window is used for enabling ultraviolet rays to irradiate into the bracket.
  2. 2. The color mixing machine of claim 1, wherein the projection assembly comprises a first projection assembly, a second projection assembly and a third projection assembly, the at least one opening comprises a first opening, a second opening and a third opening, the first projection assembly corresponds to the first opening, the second projection assembly corresponds to the second opening, the third projection assembly corresponds to the third opening, the first projection assembly comprises a first circuit board, the second projection assembly comprises a second circuit board, the third projection assembly comprises a third circuit board, and the first circuit board, the second circuit board and the third circuit board are electrically connected.
  3. 3. The color combining machine of claim 2, wherein the first circuit board, the second circuit board and the third circuit board are electrically connected through anisotropic conductive films, the anisotropic conductive films comprise a first anisotropic conductive film and a second anisotropic conductive film, the first circuit board and the second circuit board are electrically connected with the first anisotropic conductive film through a hot pressing process, and the second circuit board and the third circuit board are electrically connected with the second anisotropic conductive film through a hot pressing process.
  4. 4. The color combining machine of claim 3, wherein the first circuit board, the first anisotropic conductive film, the second circuit board, the second anisotropic conductive film, and the third circuit board are all disposed on a side of the support, where the opening is not disposed, and are stacked in sequence along a first direction, the first anisotropic conductive film and the second anisotropic conductive film form a conductive path along the first direction, and the first anisotropic conductive film and the second anisotropic conductive film remain insulated along a plane perpendicular to the first direction.
  5. 5. The color combiner of claim 2, wherein the first projection assembly comprises a first light emitting unit electrically connected to the first circuit board, the second projection assembly comprises a second light emitting unit electrically connected to the second circuit board, the third projection assembly comprises a third light emitting unit electrically connected to the third circuit board, and the light emission colors of the first light emitting unit, the second light emitting unit, and the third light emitting unit are any one of red, green, and blue and are different.
  6. 6. The color combiner of claim 5, wherein the first, second and third light units are chips formed by micro light emitting diodes.
  7. 7. The color combining machine of claim 5, wherein the first projection assembly comprises a light-transmitting cover plate disposed on a side of the first light-emitting unit facing the color combining prism.
  8. 8. The color combining machine of any one of claims 2-7, wherein the color combining machine comprises a lens, the bracket comprises a fourth opening, the lens is installed corresponding to the fourth opening, and the projection paths of the first projection assembly, the second projection assembly and the third projection assembly converge on the color combining prism and project on the lens.
  9. 9. An assembling method of a color combining machine for assembling the color combining machine according to claim 8, comprising the steps of: s1, assembling the color combining prism and the bracket into a semi-finished product; S2, assembling the first projection assembly and the first semi-finished product into a second semi-finished product through laser and charge coupled device positioning; s3, assembling the lens and the second semi-finished product into a third semi-finished product through automatic correction; S4, automatically correcting and assembling the second projection assembly and the third semi-finished product into a fourth semi-finished product, and correcting the center offset and the rotation offset of the second projection assembly relative to the third semi-finished product by using a correcting piece; s5, automatically correcting and assembling the third projection assembly and the fourth semi-finished product, and calibrating the center offset and the rotation offset of the third projection assembly relative to the fourth semi-finished product by using the calibration piece.
  10. 10. The assembly method according to claim 9, wherein the calibration piece comprises a first image card and a second image card, and in steps S4 and S5, the first projection component is lightened to project a first reference part and a second reference part on the first image card, and then the second projection component or the third projection component is lightened to project a first calibration part and a second calibration part on the second image card, so that the first calibration part is aligned with the first reference part and the second calibration part is aligned with the second reference part when the assembly is automatically corrected.
  11. 11. The method of assembling of claim 10, wherein the first graphic card and the second graphic card are the same graphic card.

Description

Color combining optical engine and assembling method thereof Technical Field The application belongs to the technical field of development of optical machines, and particularly relates to a color combining optical machine and an assembly method thereof. Background With the development of electronic technology, technologies such as Virtual Reality (VR), augmented Reality (AR) and Mixed Reality (MR) are favored by consumers, especially the development of existing Micro LED chips and the gradual maturation of mass production technologies, and the number of AR opto-mechanical devices configured with the opto-mechanical devices is also significantly increased because the opto-mechanical devices based on the Micro LED chips become hot spots in the global AR field. Further, the monochromic light machine cannot meet the requirements of users, in order to improve the imaging quality of the light machine, the color combining light machine has become a main flow development direction, the color combining light machine usually adopts three single-color Micro LED packages to combine three-color lights together, the three Micro LED packages are positioned on different three faces of the same circle of the cube prism, the fourth face of the circle is the light outlet of the three Micro LEDs, and after the three light sources are all lightened, the three-color combined light images can be obtained at the light outlet through the action of the prism, so that the color effect is realized. In the assembly process, the imaging quality of the terminal equipment is often poor due to insufficient precision and accuracy. Disclosure of Invention The application aims to at least solve the technical problems of larger occupied space, insufficient assembly precision and insufficient accuracy of the color combining optical machine to a certain extent. Therefore, the application provides a color combining optical engine and an assembling method thereof. In a first aspect, the color combining optical machine provided by the embodiment of the application comprises a support, a color combining prism, at least one projection component and an opening, wherein the support comprises an accommodating space and at least one opening, the color combining prism is arranged in the accommodating space, the projection component is arranged in one-to-one correspondence with the opening, the projection path of the projection component is converged to the color combining prism and projected, the support further comprises an opening window, the opening window and the opening are positioned on different sides of the support, and the opening window is used for enabling ultraviolet rays to irradiate into the support. Therefore, through the window opening arranged on the side of the bracket, ultraviolet light can accurately cover all glued glue layers of the projection components by utilizing the ultraviolet light transmittance and the optical guiding function of the color combining prism, and the pre-curing conversion rate is improved. After the glue is fully solidified, the bonding strength is improved, the stability of the relative positions of the projection assembly and the color combining prism is improved, the error of light convergence precision is reduced, the color uniformity of the projection picture of the color combining camera is improved, and the fusion effect is obviously optimized. In one possible implementation manner, the projection assembly comprises a first projection assembly, a second projection assembly and a third projection assembly, wherein the at least one opening comprises a first opening, a second opening and a third opening, the first projection assembly corresponds to the first opening, the second projection assembly corresponds to the second opening, the third projection assembly corresponds to the third opening, the first projection assembly comprises a first circuit board, the second projection assembly comprises a second circuit board, the third projection assembly comprises a third circuit board, and the first circuit board, the second circuit board and the third circuit board are electrically connected. Therefore, the positioning precision and the assembly efficiency of the color combining machine are improved. In a possible implementation manner, the first circuit board, the second circuit board and the third circuit board are electrically connected through an anisotropic conductive film, the anisotropic conductive film comprises a first anisotropic conductive film and a second anisotropic conductive film, the first circuit board and the second circuit board are electrically connected with the first anisotropic conductive film through a hot pressing process, and the second circuit board and the third circuit board are electrically connected with the second anisotropic conductive film through a hot pressing process. Therefore, the anisotropic conductive film replaces the traditional mechanical connection, and the compact