| CPC G02B 6/4228 (2013.01) [G02B 6/424 (2013.01); G02B 6/428 (2013.01)] | 1 Claim |
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1. An optical fiber signal direct guided optical module comprising a connector, a control circuit board and a plastic optical fiber, wherein the control circuit board is connected to the connector and is provided with a functional optical module, and the plastic optical fiber has an optical fiber end surface corresponding to the functional optical module, the distance L between the optical fiber end surface and the top surface of the functional optical module is controlled to be 50 μm to 150 μm, optical signals emitted from the optical fiber end surface can be received directly by the functional optical module, and optical signals emitted from the functional optical module can also directly penetrate through the end surface of the optical fiber to be received by the plastic optical fiber, the plastic optical fiber comprises an optical fiber core and a wrapping layer wrapping the optical fiber core, and an optical transmission reflecting surface is formed between the optical fiber core and the wrapping layer, the ratio between aperture D1 of fiber core and aperture D2 of wrapping layer: D1/D2 is greater than or equal to 0.6 and less than 1,
wherein the optical module further comprises an optical fiber connector connected between the plastic optical fiber and the control circuit board, the optical fiber connector is used to fix plastic optical fiber on the control circuit board, while the optical fiber end surface of the plastic optical fiber corresponds to functional optical module provided on the control circuit board,
wherein the optical fiber connector comprises an optical fiber fixed portion in which the plastic optical fiber is disposed and an assembly alignment portion, and the optical fiber fixed portion is configured to fix and position the plastic optical fiber, the assembly alignment portion is used to fix and position the optical fiber connector on the control circuit board such that the fiber end surface of the plastic optical fiber can correspond to the functional optical modules provided on the control circuit board,
wherein the optical fiber fixed portion is a trunk provided in the optical fiber connector, and the trunk has an optical fiber inlet and an optical fiber outlet, the plastic optical fiber is fixed in the trunk, and the optical fiber end surface of the plastic optical fiber is located at the optical fiber outlet,
wherein the optical fiber fixed portion further comprises an adjuster acting on the plastic optical fiber to adjust the distance L between the end surface of the optical fiber and the top surface of the functional optical module, the adjuster comprises a presser and an ejector, wherein the presser comprises a stud screwed in the optical fiber connector and a press block pivoted below the stud, an arc plate is provided below the press block and is pressed against the plastic optical fiber, the optical fiber connector is provided with an adjusting cavity disposed directly below the presser, the ejector is arranged in the adjusting cavity and comprises a pivoting ball and a top cap, the pivoting ball is pivoted in a ball cavity arranged at the bottom of the adjusting cavity, the top cap is made of an elastic material and fixedly covers the pivoting ball and can rotate synchronously with the pivoting ball.
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