TWI792176B - Optical fiber mounting mechenism and projection device having the same - Google Patents

Abstract

An optical fiber mounting mechanism includes an optical fiber, a signal circuit, and a mounting structure. The optical fiber extends along a first direction. The signal circuit extends along the first direction. The mounting structure is disposed at ends of the optical fiber and the signal circuit. The mounting structure surrounds the optical fiber and the signal circuit. The mounting structure has an installation portion. The installation portion extends radially relative to the first direction as the axis direction. The installation portion has a plurality of elements. The elements are exposed from a surface of the installation portion. The surface has a normal direction parallel with the first direction.

Description

Optical fiber assembly mechanism and projection device with optical fiber assembly mechanism

The present disclosure relates to an optical fiber assembly mechanism, in particular to a projection device using the optical fiber assembly mechanism to connect a projection module and a light source module.

The demand for fiber optics to be used in projector systems is increasing day by day. The optical transmission and flexibility of optical fibers can make projection systems more flexible. The projector system may have separate imaging system and light source system, and the imaging system and light source system are connected by optical fiber for light transmission. However, the design of the optical fiber assembly mechanism and the linkage switch of the light source module may have the risk of exposing the light of the optical fiber. For example, when the optical fiber is detached from the light source module or the projection module, the light source is still turned on so that the light passes through and causes danger in application.

Therefore, in view of this, how to provide an optical fiber assembly mechanism that can avoid light exposure is still one of the goals that the industry needs to study urgently.

One technical aspect of the present disclosure is an optical fiber assembly mechanism.

In an embodiment of the present disclosure, the optical fiber assembly mechanism includes an optical fiber, a signal line, and an assembly structure. The optical fiber extends along a first direction. The signal line extends along the first direction. The assembly structure is arranged at the end of the optical fiber and the signal line, the assembly structure surrounds the optical fiber and the signal line, the assembly structure has an installation part, the installation part extends radially with the first direction as the axis direction, the installation part has a plurality of components, the components The surface of the installation part is exposed, and the surface has a normal direction parallel to the first direction.

In an embodiment of the present disclosure, the components of the installation portion include a plurality of signal terminals connected to the signal lines, and the signal terminals extend along the first direction.

In an embodiment of the present disclosure, the elements of the mounting portion include magnetic elements.

In an embodiment of the present disclosure, the components of the installation portion include a positioning structure, and the positioning structure protrudes from the installation portion along a first direction.

In an embodiment of the present disclosure, the components of the mounting portion include locking pieces, passing through the mounting portion along a first direction and protruding from the surface of the mounting portion.

Another technical aspect of the disclosure is a projection device.

In an embodiment of the present disclosure, the projection device includes a plurality of optical fiber assembly mechanisms, a light source module and a projection module. Each optical fiber assembly mechanism includes an optical fiber, a signal line and an assembly structure. The optical fiber extends along a first direction. The signal line extends along the first direction. The assembly structure is arranged at the end of the optical fiber and the signal line, the assembly structure surrounds the optical fiber and the signal line, the assembly structure has an installation part, the installation part extends radially with the first direction as the axis direction, the installation part has a plurality of components, the components The surface of the installation part is exposed, and the surface has a normal direction parallel to the first direction. The light source module includes a docking portion configured to dock with a mounting portion of one of the optical fiber assembly mechanisms along a first direction. The projection module includes a docking part configured to dock with the mounting part of the other one of the optical fiber assembly mechanisms along a first direction.

In an embodiment of the present disclosure, each abutting portion includes a plate body and an accommodating cavity, the plate body extends radially with the first direction as the axis, and the accommodating cavity is recessed along the first direction.

In an embodiment of the present disclosure, the components of each installation portion include a plurality of signal terminals connected to the signal lines, each docking portion includes a plurality of contact terminals, and the contact terminals are configured to electrically contact with the signal terminals along the first direction , and the depth of the accommodating cavity is greater than the effective contact distance between the contact terminal and the signal terminal.

In an embodiment of the present disclosure, the elements of each mounting portion include a magnetic element, each docking portion includes a magnetic sensing switch configured to magnetically connect with the magnetic element along a first direction, and the accommodating cavity The depth is greater than the effective sensing distance between the magnetic sensing switch and the magnetic element.

In an embodiment of the present disclosure, each docking portion includes a plurality of signal terminals and a magnetic sensing switch, and the contact terminal of each docking portion is electrically connected to the magnetic sensing switch.

In an embodiment of the present disclosure, the elements of each mounting portion include a positioning structure, each docking portion includes a positioning structure, and the positioning structure of the docking portion is configured to cooperate with the positioning structure of the mounting portion along the first direction.

In an embodiment of the present disclosure, the elements of each mounting portion include a locking piece, each of the docking portions includes a locking hole, and the locking holes of the docking portion are configured to connect with the locking piece of the mounting portion along a first direction.

In an embodiment of the present disclosure, the number of light source modules is plural.

In an embodiment of the present disclosure, the number of projection modules is plural.

In an embodiment of the present disclosure, the number of light source modules is plural, and the number of projection modules is plural.

In the above embodiments, the optical fiber assembly mechanism of the present disclosure can make the depth of the accommodating cavity (or the length of the connecting section of the optical fiber) greater than the effective contact distance between the signal terminal and the contact terminal and/or the magnetic sensing switch The effective sensing distance between the magnetic element and the magnetic element ensures that the power switch is turned off before the optical fiber assembly mechanism is completely separated from the light source module (or projection module). Similarly, since the depth of the accommodating cavity is greater than the effective contact distance between the signal terminal and the contact terminal and/or the effective sensing distance between the magnetic sensing switch and the magnetic element, it can ensure that the optical fiber is connected when the light source module is turned on. The segments have been assembled into the housing cavity. In this way, the danger caused by light exposure can be avoided.

Several embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some well-known structures and components will be shown in a simple and schematic manner in the drawings. Also, the thicknesses of layers and regions in the drawings may be exaggerated for clarity, and the same reference numerals denote the same elements in the description of the drawings.

FIG. 1 is a schematic diagram of a projection device 100 according to an embodiment of the present disclosure. The projection device 100 includes a light source module 110 , a projection module 120 and an optical fiber assembly mechanism 130 . FIG. 2 is a partially enlarged view of the light source module 110 and the optical fiber assembly mechanism 130 in FIG. 1 . Also refer to Figure 1 and Figure 2. The light source module 110 includes a main body 112 and a docking portion 114 . The projection module 120 also includes a main body and a docking part (not shown) similar to the light source module 110 . The optical fiber assembly mechanism 130 includes an optical fiber 132 , a signal line 134 and an assembly structure 136 . The optical fiber assembly mechanism 130 connects the docking portion 114 of the light source module 110 and the docking portion of the projection module 120 through the assembly structure 136 .

FIG. 3 is a schematic diagram of the fiber assembly mechanism 130 . Also refer to Figures 3 to 4. In FIG. 3 , only the light source module 110 and the assembly structure 136 close to the light source module 110 are used for illustration. The end of the optical fiber assembly mechanism 130 connected to the projection module 120 also has the same structure. The optical fiber 132 and the signal line 134 extend along the first direction D1. The assembly structure 136 is disposed at opposite ends of the optical fiber 132 and the signal line 134 , that is, the two ends near the light source module 110 and the projection module 120 shown in FIG. 1 . In FIG. 3 , only the ends 132E, 134E close to the light source module 110 are marked. The assembly structure 136 surrounds the optical fiber 132 and the signal line 134 . The assembly structure 136 has an installation portion 1362 , and the installation portion 1362 extends radially with the first direction D1 as the axis direction. The mounting portion 1362 has a plurality of elements exposed from a surface 1362A of the mounting portion 1362 , and the surface 1362A has a normal direction parallel to the first direction D1 . In other words, the surface 1362A of the mounting portion 1362 has a larger area and can be used to set a plurality of components. These components can transmit signals and avoid light leakage when the optical fiber assembly mechanism 130 is assembled with the light source module 110 or the projection module 120. And avoid docking misalignment and other effects.

The components on the mounting portion 1362 include signal terminals 1382 , magnetic components 1384 , positioning structures 1386 and locking pieces 1388 . The signal terminal 1382 is connected to the signal line 134 , and the signal terminal 1382 protrudes from the surface 1362A along the first direction D1 . The magnetic element 1384 is, for example, a magnet. The magnetic element 1384 is buried in the installation portion 1362 , and the magnetic element 1384 has an outer surface exposed from the surface 1362A of the installation portion 1362 . In addition, the outer surface of the magnetic element 1384 is substantially parallel to the surface 1362A of the mounting portion 1362 . The positioning structure 1386 of the mounting portion 1362 protrudes from the surface 1362A of the mounting portion 1362 along the first direction D1. For example, the positioning structure 1386 can be a positioning protrusion. The locking member 1388 of the mounting portion 1362 passes through the mounting portion 1362 along the first direction D1 and protrudes from the surface 1362A of the mounting portion 1362 . For example, the locking member 1388 can be a screw.

FIG. 4 is a schematic diagram of the light source module 110 . The docking portion 114 of the light source module 110 includes a board body 1142 and an accommodating cavity 1144 . The plate body 1142 extends radially with the first direction D1 as the axis, and the accommodating cavity 1144 is recessed along the first direction D1. The optical fiber 132 includes an engaging segment 1322 protruding from the surface 1362A of the mounting portion 1362 and configured to engage with the accommodating cavity 1144 of the docking portion 114 . After the mounting portion 1362 is docked with the docking portion 114 , the surface 1362A of the mounting portion 1362 and the outer surface of the magnetic element 1384 are in contact with the board 1142 of the docking portion 114 . Due to the larger area of the plate body 1142 , it can block the mounting portion 1362 , thus increasing the stability when the mounting portion 1362 is docked with the docking portion 114 .

A plurality of components are disposed on the board body 1142 of the docking portion 114 , including a contact terminal 1162 , a magnetic sensing switch 1164 , a positioning structure 1166 and a locking hole 1168 . The contact terminal 1162 is configured to electrically contact the signal terminal 1382 of the mounting portion 1362 . In other words, the installation part 1362 is contacted with the docking part 114 to electrically connect the optical fiber assembly mechanism 130 and the light source module 110 and to electrically connect the optical fiber assembly mechanism 130 and the projection module 120 . When the light source module 110 is electrically connected to the projection module 120 , the connecting section 1322 of the optical fiber 132 is matched with the accommodating cavity 1144 of the light source module 110 . That is to say, the light source module 110 and the optical fiber assembly mechanism 130 are assembled along the extending direction of the optical fiber 132 , and the projection module 120 and the optical fiber assembling mechanism 130 are also assembled along the extending direction of the optical fiber 132 .

The magnetic sensing switch 1164 of the docking portion 114 is magnetically connected to the magnetic element 1384 of the installation portion 1362 . When the light source module 110 and the projection module 120 are assembled with the optical fiber assembly mechanism 130 respectively, the contact electrical connection between the contact terminal 1162 and the signal terminal 1382 and the non-contact between the magnetic sensor switch 1164 and the magnetic element 1384 The contact electrical connections together constitute a linkage switch that can control the light source to be turned on or off. The mechanism of the above linkage switch will be described in detail later.

The positioning structure 1166 of the docking portion 114 is configured to cooperate with the positioning structure 1386 of the mounting portion 1362 . For example, the positioning structure 1166 may be a positioning through hole configured to receive a positioning post. In addition, the positioning structure 1386 on the installation portion 1362 protrudes along the first direction D1 longer than the length of the signal terminal 1382, so before the contact terminal 1162 and the signal terminal 1382 contact each other, they can communicate with each other through the positioning through hole. The cooperation between the positioning protrusions avoids the rotational misalignment between the docking portion 114 and the mounting portion 1362 . In this way, damage to the contact terminals 1162 and the signal terminals 1382 can be avoided during the assembly process. In other embodiments, the positioning structures 1166 and 1386 may also be other structures with positioning functions, which are not intended to limit the present disclosure.

The locking hole 1168 of the docking portion 114 is configured to connect with the locking member 1388 of the mounting portion 1362 , so that the docking portion 114 and the mounting portion 1362 are relatively fixed. For example, the locking hole 1168 is a screw hole matched with a screw. In other embodiments, the locking member 1388 and the locking hole 1168 may also be other structures with a locking function, which are not intended to limit the present disclosure.

FIG. 5 is a cross-sectional view when the light source module 110 and the optical fiber assembly mechanism 130 in FIG. 2 are assembled together. The accommodating cavity 1144 has a depth H1, and an effective contact distance H2 exists between the signal terminal 1382 and the contact terminal 1162 . The depth H1 of the accommodating cavity 1144 is greater than the effective contact distance H2 between the signal terminal 1382 and the contact terminal 1162 . In other words, the length of the connecting section 1322 is also equal to the depth H1 of the accommodating cavity 1144 , and the length of the connecting section 1322 is greater than the effective contact distance H2 between the signal terminal 1382 and the contact terminal 1162 . In some embodiments, depth H1 falls within a range of about 42 millimeters to 44 millimeters. In some embodiments, the effective contact distance H2 falls within a range of about 0.7 mm to 0.9 mm, and the effective contact distance H2 is preferably 0.8 mm.

There is an effective sensing distance H3 between the magnetic sensing switch 1164 and the magnetic element 1384 . The depth H1 of the accommodating cavity 1144 is greater than the effective sensing distance H3 between the magnetic sensing switch 1164 and the magnetic element 1384 . In other words, the length of the connecting section 1322 is greater than the effective sensing distance H3 between the magnetic sensing switch 1164 and the magnetic element 1384 . In some embodiments, the effective sensing distance H3 is less than 20 mm, and the effective sensing distance H3 preferably falls within a range of about 6 mm to 7 mm.

FIG. 6 is a schematic diagram of the electrical connection of the projection device 100 according to an embodiment of the disclosure. The contact terminal 1162 of the light source module 110 is electrically connected to the magnetic sensing switch 1164 , and the contact terminal 1262 of the projection module 120 is also electrically connected to the magnetic sensing switch 1264 . The signal terminals 1382 of the assembly structures 136 at two ends of the optical fiber assembly mechanism 130 are electrically connected to each other. The light source module 110 further includes a power supply unit 1182 , a power switch 1184 , a light source driving unit 1186 and a detection circuit 1188 . The power switch 1184 is electrically connected to the power supply unit 1182 and the light source driving unit 1186 , and the power switch 1184 is electrically connected to the contact terminal 1162 of the light source module 110 and the magnetic sensing switch 1164 through the detection circuit 1188 .

When the contact terminal 1162 of the light source module 110 (and the contact terminal 1262 of the projection module 120) is electrically connected to the signal terminal 1382, and the magnetic sensing switch 1164 of the light source module 110 (and the magnetic sensing switch of the projection module 120 1264 ) is electrically connected to the magnetic element 1384 , the switch control loop IL can be connected and the detection circuit 1188 transmits a command to turn on the power switch 1184 . At this time, power can be supplied to the light source driving unit 1186 through the power supply unit 1182 . The main body 112 of the light source module 110 emits light L, and the light L can be transmitted to the projection module 120 through the optical fiber assembly mechanism 130 .

Also refer to Figures 5 and 6. Since the depth H1 of the accommodating cavity 1144 (that is, the length of the connecting section 1322) is greater than the effective contact distance H2 and the effective sensing distance H3, it can be ensured that when the power supply unit 1182 supplies power, the connecting section 1322 of the optical fiber 132 of the optical fiber assembly mechanism 130 has been assembled. to the accommodating cavity 1144 . In other words, before the distance between the contact terminal 1162 and the signal terminal 1382 is reduced to less than the effective contact distance H2, the connecting section 1322 has been assembled into the accommodating cavity 1144 and there will be no danger due to exposure of the light L. Similarly, before the distance between the magnetic sensing switch 1164 and the magnetic element 1384 is reduced to less than the effective sensing distance H3, the connecting section 1322 has been assembled into the accommodating cavity 1144, which can avoid the danger caused by exposure of the light L.

In other words, during the process of detaching the optical fiber assembly mechanism 130 from the light source module 110, when the distance between the contact terminal 1162 and the signal terminal 1382 is greater than the effective contact distance H2, a part of the connecting section 1322 is still in place. in the accommodating cavity 1144 . Similarly, during the process of detaching the optical fiber assembly mechanism 130 from the light source module 110, when the distance between the magnetic sensing switch 1164 and the magnetic element 1384 is greater than the effective sensing distance H3, a part of the connecting section 1322 Still located in the accommodating cavity 1144 . Therefore, the projection device 100 can ensure that the switch control loop IL is disconnected before the optical fiber assembly mechanism 130 is completely separated from the light source module 110 , and the detection circuit 1188 transmits a command to turn off the power switch 1184 . In this way, the danger caused by exposure of the light L before the optical fiber assembly mechanism 130 is completely separated from the light source module 110 can be avoided.

FIG. 7 is a schematic diagram of a projection device 100a according to another embodiment of the present disclosure. The projection device 100 is substantially the same as the projection device 100 shown in FIG. 1 , the difference is that the projection device 100a has a plurality of light source modules 110a, 110b, 110c, 110d, 110e, 110f. The optical fiber assembly mechanism 130a of the projection device 100 has an assembly structure (not shown) corresponding to a plurality of docking portions 114 of the light source modules 110a-110f. The optical fiber assembling mechanism 130a can cooperate with components such as an optical coupler and a light homogenizer to couple and transmit the light to the corresponding docking portion 124 of the projection module 120 . The projection device 100a has the same technical functions as the projection device 100 shown in FIG. 1 , and will not be repeated here.

FIG. 8 is a schematic diagram of a projection device 100b according to another embodiment of the present disclosure. The projection device 100b is substantially the same as the projection device 100 shown in FIG. 1 , the difference is that the projection device 100b has a plurality of projection modules 120a, 120b, 120c. The optical fiber assembly mechanism 130b of the projection device 100b has an assembly structure (not shown) corresponding to the plurality of docking parts 114 of the projection modules 120a-120c. The optical fiber assembly mechanism 130b can cooperate with components such as an optical splitter to split the light and transmit it to the docking portion 124 of the corresponding projection modules 120a-120c. The projection device 100b has the same technical functions as the projection device 100 shown in FIG. 1 , and will not be repeated here.

FIG. 9 is a schematic diagram of a projection device 100c according to another embodiment of the present disclosure. The projection device 100c is substantially the same as the projection device 100 shown in FIG. 1 , except that the projection device 100c has a plurality of light source modules 110a, 110b and a plurality of projection modules 120a, 120b, 120c. The optical fiber assembly mechanism 130c of the projection device 100 has an assembly structure (not shown) corresponding to the docking portion 114 of the light source modules 110a, 110b and an assembly structure (not shown) corresponding to the docking portion 124 of the projection modules 120a-120c. The optical fiber assembly mechanism 130c can be equipped with components such as optical couplers, light homogenizers, and optical splitters to transmit light from the light source modules 110a, 110b to the projection modules 120a-120c. The projection device 100c has the same technical functions as the projection device 100 shown in FIG. 1 , and will not be repeated here.

FIG. 10 is a schematic diagram of the electrical connection of the projection device 100c according to FIG. 9 of the present disclosure. The detection circuit 1188a of the light source module 110a of the projection device 100c is electrically connected to the detection circuit 1188b of the light source module 110b. The detection circuit 1188a of the light source module 110a is electrically connected to the projection module 120a, and the detection circuit 1188b of the light source module 110b is electrically connected to the projection module 120c. The optical fiber assembly mechanism 130c is electrically connected to the signal lines 134 corresponding to the plurality of projection modules 120a-120c. When the optical fiber assembly mechanism 130c is docked with the light source modules 110a, 110b and the projection modules 120a-120c, as long as any of the above-mentioned electrical connections is not established, the detection circuits 1188a, 1188b will transmit instructions to turn off the power switches 1184a, 1184b .

To sum up, the optical fiber assembly mechanism of the present disclosure can make the depth of the accommodating cavity (or the length of the connecting section of the optical fiber) greater than the effective contact distance between the signal terminal and the contact terminal and/or the magnetic sensing switch and The effective sensing distance between the magnetic components ensures that the power switch is turned off before the optical fiber assembly mechanism is completely separated from the light source module (or projection module). Similarly, since the depth of the accommodating cavity is greater than the effective contact distance between the signal terminal and the contact terminal and/or the effective sensing distance between the magnetic sensing switch and the magnetic element, it can ensure that the optical fiber is connected when the light source module is turned on. The segments have been assembled into the housing cavity. In this way, the danger caused by light exposure can be avoided.

Although the present invention has been disclosed above in terms of implementation, it is not intended to limit the present invention. Anyone skilled in this art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be defined by the appended patent application scope.

100, 100a, 100b, 100c: projection device 110, 110a, 110b, 110c, 110d, 110e, 110f: light source module 112: subject 114,124: butt joint 1142: board body 1144: accommodating cavity 1162, 1262: contact terminal 1164, 1264: Magnetic sensor switch 1166: Positioning structure 1168: locking hole 1182: Power supply unit 1184, 1184a, 1184b: Power switch 1186: Light source drive unit 1188, 1188a, 1188b: detection circuit 120,120a,120b,120c: projection module 130, 130a, 130b, 130c: optical fiber assembly mechanism 132: optical fiber 132E: end 1322: Cohesion section 134: signal line 134E: end 136: Assembly structure 1362: Installation Department 1362A: surface 1382: Signal terminal 1384: Magnetic components 1386: positioning structure 1388: lock D1: the first direction H1: Depth H2: effective contact distance H3: effective sensing distance L: light IL: switch control loop

FIG. 1 is a schematic diagram of an optical fiber assembly mechanism according to an embodiment of the present disclosure. Fig. 2 is a partial enlarged view of the light source module and optical fiber assembly mechanism in Fig. 1. Fig. 3 is a schematic diagram of an optical fiber assembly mechanism. FIG. 4 is a schematic diagram of the light source module. Fig. 5 is a cross-sectional view of the light source module in Fig. 2 when it is assembled with the optical fiber assembly mechanism. FIG. 6 is a schematic diagram of electrical connections of an optical fiber assembly mechanism according to an embodiment of the present disclosure. FIG. 7 is a schematic diagram of a projection device according to another embodiment of the disclosure. FIG. 8 is a schematic diagram of a projection device according to another embodiment of the disclosure. FIG. 9 is a schematic diagram of a projection device according to another embodiment of the present disclosure. FIG. 10 is a schematic diagram of the electrical connection of the projection device shown in FIG. 9 of the present disclosure.

130: Optical fiber assembly mechanism

132: optical fiber

132E: end

1322: Cohesion section

134: signal line

134E: end

136: Assembly structure

1362: Installation Department

1362A: surface

1382: Signal terminal

1384: Magnetic components

1386: positioning structure

1388: lock

D1: the first direction

Claims (13)

An optical fiber assembly mechanism, comprising: an optical fiber extending along a first direction, wherein the optical fiber includes a splicing section; a signal line extending along the first direction; and an assembly structure arranged between the optical fiber and the signal The end of the line, the assembly structure surrounds the optical fiber and the signal line, the assembly structure has an installation part, the installation part extends radially with the first direction as the axis direction, the installation part has a plurality of elements, These elements are exposed from a surface of the installation part, and the surface has a normal direction parallel to the first direction, the connecting section of the optical fiber protrudes from the surface of the installation part, and the installation parts of the installation part The component includes a plurality of signal terminals connected to the signal line, the signal terminals extend along the first direction and are arranged on the surface of the installation part, and the connecting section and the signal terminals face the normal line of the surface direction. The optical fiber assembly mechanism as claimed in claim 1, wherein the elements of the installation part include a magnetic element. The optical fiber assembly mechanism as claimed in claim 1, wherein the components of the installation part include a positioning structure, and the positioning structure protrudes from the installation part along the first direction. The optical fiber assembling mechanism as claimed in claim 1, wherein the elements of the mounting part include a locking member passing through the mounting along the first direction The installation part protrudes from the surface of the installation part. A projection device, comprising: a plurality of optical fiber assembly mechanisms, wherein each of the optical fiber assembly mechanisms comprises: an optical fiber extending along a first direction; a signal line extending along the first direction; and an assembly structure, It is arranged at the end of the optical fiber and the signal line. The assembly structure surrounds the optical fiber and the signal line. The assembly structure has an installation part, and the installation part extends radially with the first direction as the axis direction. The installation part The installation part has a plurality of elements, and these elements are exposed from a surface of the installation part, and the surface has a normal direction parallel to the first direction, and the elements of the installation part include a plurality of signal terminal; at least one light source module, including a docking portion, configured to dock with the mounting portion of one of the optical fiber assembly mechanisms along the first direction; and at least one projection module, including a docking portion, Configured to dock with the mounting portion of the other of the optical fiber assembly mechanisms along the first direction, wherein each of the docking portions includes a plate body, an accommodating cavity and a plurality of contact terminals, the plate body Extending radially with the first direction as the axis, and the accommodating cavity is recessed along the first direction, the contact terminals are configured to make electrical contact with the signal terminals along the first direction, and the accommodating A depth of the cavity is greater than an effective contact distance between the contact terminals and the signal terminals. The projection device as described in claim 5, wherein the elements of each of the installation parts include a magnetic element, and each of the docking parts includes a magnetic sensing switch, and the magnetic sensing switches are configured to communicate with the The magnetic elements are magnetically connected along the first direction, and a depth of the accommodating cavity is greater than an effective sensing distance between the magnetic sensing switches and the magnetic elements. The projection device as described in claim 5, wherein each of the docking parts includes a plurality of contact terminals and a magnetic sensing switch, and the contact terminals of each of the docking parts are electrically connected to the magnetic sensing switch . The projection device as described in claim 5, wherein the elements of each of the mounting parts include a positioning structure, and each of the docking parts includes a positioning structure, and the positioning structure of the docking part is configured to be compatible with the device The positioning structure of the setting part cooperates along the first direction. The projection device as described in claim 5, wherein the elements of each of the installation parts include a locking member, each of the docking parts includes a locking hole, and the locking hole of the docking part is configured to The locking piece is connected to the mounting part along the first direction. The projection device as claimed in claim 5, wherein the number of the light source modules is plural. The projection device as described in claim 5, wherein the projection module The number of groups is plural. The projection device according to claim 5, wherein the number of the light source modules is plural, and the number of the projection modules is plural. A projection device, comprising: a plurality of optical fiber assembly mechanisms, wherein each of the optical fiber assembly mechanisms comprises: an optical fiber extending along a first direction; a signal line extending along the first direction; and an assembly structure, It is arranged at the end of the optical fiber and the signal line. The assembly structure surrounds the optical fiber and the signal line. The assembly structure has an installation part, and the installation part extends radially with the first direction as the axis direction. The installation part The installation part has a plurality of elements, and the elements are exposed from a surface of the installation part, and the surface has a normal direction parallel to the first direction, and the elements of the installation part include a magnetic element; at least one light source A module, including a docking portion, configured to dock with the mounting portion of one of the optical fiber assembly mechanisms along the first direction; and at least one projection module, including a docking portion, configured to connect with the optical fibers The installation part of the other one of the assembly mechanisms is butted along the first direction, wherein each of the abutment parts includes a plate body, an accommodating cavity and a magnetic sensing switch, and the plate body is aligned with the first direction. The axis extends radially, and the accommodating cavity is recessed along the first direction, the magnetic sensing switches are configured to be magnetically connected with the magnetic elements along the first direction, and the accommodating cavity has a depth greater than these An effective sensing distance between the magnetic sensing switch and the magnetic elements.

Images