Abstract:
The invention discloses an optical device and an optical module, the optical device includes a collimation lens (11) arranged on an outer surface (171) and used for converting incident light emitted by a light source (3) to parallel light, the optical device further includes a transmission light total reflection surface (14) used for totally reflecting a part of the parallel light transmitted by the collimation lens at a first predetermined angle so that the part of the parallel light is finally coupled to an external optical fiber (5), a detection light total reflection surface (18) used for totally reflecting a part of the parallel light transmitted by the collimation lens at a second predetermined angle so that the part of the parallel light is finally coupled to an external optical detector (4), and at least one attenuation light reflection surface used for totally reflecting parallel light to be attenuated which is transmitted by the collimation lens (11) at a third predetermined angle before the parallel light to be attenuated leaves the optical device. By arranging the plurality of total reflection surfaces in the optical device, the invention achieves the purpose of light intensity attenuation while realizing the direction-changing transmission of light signals.
Abstract:
The invention discloses an optical device and an optical module, the optical device includes a collimation lens (11) arranged on an outer surface (171) and used for converting incident light emitted by a light source (3) to parallel light, the optical device further includes a transmission light total reflection surface (14) used for totally reflecting a part of the parallel light transmitted by the collimation lens at a first predetermined angle so that the part of the parallel light is finally coupled to an external optical fiber (5), a detection light total reflection surface (18) used for totally reflecting a part of the parallel light transmitted by the collimation lens at a second predetermined angle so that the part of the parallel light is finally coupled to an external optical detector (4), and at least one attenuation light reflection surface used for totally reflecting parallel light to be attenuated which is transmitted by the collimation lens (11) at a third predetermined angle before the parallel light to be attenuated leaves the optical device. By arranging the plurality of total reflection surfaces in the optical device, the invention achieves the purpose of light intensity attenuation while realizing the direction-changing transmission of light signals.
Abstract:
The invention discloses an optical module, the optical module includes a PCB, an optical component arranged on the PCB, and an optical fiber which is coupled with the optical component through an optical lens module, the optical module further includes a fixed bracket, a lens bracket which is detachably connected with the fixed bracket, and a fiber bracket which is detachably connected with the lens bracket, the fixed bracket is fixed on the PCB, the optical lens module is arranged on the lens bracket, the optical fiber is arranged on the fiber bracket, and the optical component is located between the fixed bracket and the lens bracket, the fixed bracket is provided with at least two positioning parts, the lens bracket is correspondingly provided with positioning parts which match respectively the positioning parts of the fixed bracket to achieve detachable connection. Moreover, the optical path coupling is achieved through the mechanical fixation among a plurality of brackets, the working process is simplified, the coupling cost is reduced, and the coupling consistency and accuracy are improved.