CN114442411A

CN114442411A - Optical fiber assembling mechanism and projection device thereof

Info

Publication number: CN114442411A
Application number: CN202110163756.8A
Authority: CN
Inventors: 陈庆兆; 叶佳胜; 尹维矿; 江馥任
Original assignee: Delta Electronics Inc
Current assignee: Delta Electronics Inc
Priority date: 2020-11-02
Filing date: 2021-02-05
Publication date: 2022-05-06
Anticipated expiration: 2041-02-05
Also published as: CN114442411B; TWI792176B; TW202219578A

Abstract

The invention provides an optical fiber assembling mechanism and a projection device thereof. The optical fiber assembling mechanism comprises an optical fiber, a signal line and an assembling structure. The optical fiber extends along a first direction. The signal line extends along a first direction. The assembly structure is arranged at the tail ends of the optical fiber and the signal line. The assembling structure surrounds the optical fiber and the signal circuit, and is provided with an installing part, the installing part extends radially by taking the first direction as an axis direction, the installing part is provided with a plurality of elements, the elements are exposed from the surface of the installing part, and the surface of the elements has a normal direction parallel to the first direction.

Description

Optical fiber assembling mechanism and projection device thereof

Technical Field

The present disclosure relates to optical fiber assembling mechanisms, and particularly to a projection apparatus using an optical fiber assembling mechanism to connect a projection module and a light source module.

Background

The demand for optical fibers applied to projector systems is increasing day by day, and the optical transmission and flexibility of the optical fibers can enable the projection systems to have flexible application characteristics. The projector system may have a separate imaging system and light source system, and the imaging system and light source system may be connected by optical fibers for light transmission. However, the design of the assembly mechanism of the optical fiber and the ganged switch of the light source module may have a 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 on, so that the light is emitted out and the application risk is caused.

Therefore, it is still an objective of the present invention to provide an optical fiber assembly mechanism capable of preventing light from being exposed.

Disclosure of Invention

The disclosure provides an optical fiber assembly mechanism capable of preventing light from being exposed and a projection apparatus thereof.

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 a first direction. The assembling structure is arranged at the tail end of the optical fiber and the signal circuit, surrounds the optical fiber and the signal circuit, and is provided with an installing part, the installing part extends radially by taking the first direction as an axis direction, the installing part is provided with a plurality of elements, the elements are exposed from the surface of the installing part, and the surface of the elements has a normal direction parallel to the first direction.

In one embodiment of the present disclosure, the component of the mounting portion includes a plurality of signal terminals connected to the signal lines, and the signal terminals extend along the first direction.

In one embodiment of the present disclosure, the element of the mounting portion includes a magnetic element.

In one embodiment of the present disclosure, the component of the mounting portion includes a positioning structure, and the positioning structure protrudes from the mounting portion along the first direction.

In one embodiment of the present disclosure, the component of the mounting portion includes a locking member, which passes through the mounting portion along a first direction and protrudes from a surface of the mounting portion.

In an embodiment of the present disclosure, a projection apparatus includes a plurality of optical fiber assembling mechanisms, a light source module, and a projection module. Each optical fiber assembling mechanism comprises an optical fiber, a signal line and an assembling structure. The optical fiber extends along a first direction. The signal line extends along a first direction. The assembling structure is arranged at the tail end of the optical fiber and the signal circuit, surrounds the optical fiber and the signal circuit, and is provided with an installing part, the installing part extends radially by taking the first direction as an axis direction, the installing part is provided with a plurality of elements, the elements are exposed from the surface of the installing part, and the surface of the elements has a normal direction parallel to the first direction. The light source module comprises a butting part which is configured to be butted with the mounting part of one of the optical fiber assembling mechanisms along a first direction. The projection module comprises a butting part configured to be butted with the mounting part of the other optical fiber assembling mechanism along a first direction.

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

In one embodiment of the present disclosure, each of the mounting portions includes a plurality of signal terminals connected to the signal lines, each of the connecting portions includes a plurality of contact terminals configured to electrically contact the signal terminals along a first direction, and the depth of the receiving cavity is greater than an effective contact distance between the signal terminals and the contact terminals.

In an embodiment of the disclosure, the element of each of the mounting portions includes a magnetic element, each of the mating portions includes a magnetic sensing switch, the magnetic sensing switch is configured to be magnetically connected to the magnetic element along a first direction, and a depth of the accommodating cavity is greater than an effective sensing distance between the magnetic sensing switch and the magnetic element.

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

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

In an embodiment of the present disclosure, each of the elements of the mounting portion includes a locking member, each of the abutting portions includes a locking hole, and the locking holes of the abutting portions are configured to connect the locking members of the mounting portion along the first direction.

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

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

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

In the above embodiments, the optical fiber assembly mechanism of the present disclosure may ensure that the power switch is turned off before the optical fiber assembly mechanism is completely detached from the light source module (or the projection module) by making 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 effective sensing distance between the magnetic sensing switch and the magnetic element. 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 be ensured that the connection section of the optical fiber is already assembled into the accommodating cavity when the light source module is started. Therefore, the danger caused by the exposure of light can be avoided.

Drawings

FIG. 1 is a schematic diagram of an optical fiber assembly mechanism according to an embodiment of the present disclosure.

Fig. 2 is a partially enlarged view of the light source module and the optical fiber assembly mechanism of fig. 1.

FIG. 3 is a schematic diagram of an optical fiber assembly mechanism.

Fig. 4 is a schematic view of a light source module.

Fig. 5 is a cross-sectional view of the light source module and the optical fiber assembly mechanism of fig. 2 assembled together.

FIG. 6 is a schematic diagram of electrical connections of an optical fiber assembly mechanism according to an embodiment of the disclosure.

Fig. 7 is a schematic view of a projection apparatus according to another embodiment of the present disclosure.

Fig. 8 is a schematic view of a projection apparatus according to another embodiment of the present disclosure.

Fig. 9 is a schematic view of a projection apparatus according to another embodiment of the present disclosure.

Fig. 10 is a schematic diagram of electrical connections of the projection apparatus of fig. 9 according to the disclosure.

The reference numbers are as follows:

100,100a,100b,100c projection apparatus

110,110a,110b,110c,110d,110e,110f light source module

112 main body

114,124 butt joint part

1142. plate body

1144 containing cavity

1162,1262 contact terminal

1164,1264 magnetic sensing switch

1166 positioning structure

1168 locking hole

1182 power supply unit

1184,1184a,1184b power switch

1186 light source driving unit

1188,1188a,1188b detection circuit

120,120a,120b,120c projection module

130,130a,130b,130c optical fiber assembling mechanism

132 optical fiber

132E end

1322 connecting segment

134 signal line

134E end

136 assembly structure

1362 installation part

1362A surface

1382 Signal terminal

1384 magnetic element

1386 positioning structure

1388 locking and fixing part

D1 first direction

H1 depth

H2 effective contact distance

H3 effective sensing distance

L is light

IL switch control circuit

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some well-known and conventional structures and elements are shown in the drawings in a simple schematic manner for the sake of simplifying the drawings. And the thickness 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 apparatus 100 according to an embodiment of the disclosure. The projection apparatus 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 assembling mechanism 130 of fig. 1. Refer to fig. 1 and 2. The light source module 110 includes a main body 112 and a docking portion 114. The projection module 120 also includes a body and a docking portion (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 an optical fiber assembly mechanism 130. See also fig. 3-4. In fig. 2, only the light source module 110 and the assembling structure 136 close to the light source module 110 are illustrated, and the end of the optical fiber assembling 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 assembling structures 136 are disposed at two opposite ends of the optical fiber 132 and the signal line 134, that is, two ends of the optical fiber near the light source module 110 and the projection module 120 shown in fig. 1. Only the ends 132E, 134E near the light source module 110 are labeled in fig. 2. The assembly structure 136 surrounds the optical fiber 132 and the signal line 134. The assembly structure 136 has a mounting portion 1362, and the mounting portion 1362 extends radially in the first direction D1. 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 for disposing a plurality of elements, and the elements can transmit signals, avoid light leakage, and avoid misalignment when the optical fiber assembly mechanism 130 is assembled with the light source module 110 or the projection module 120.

The components on the mounting portion 1362 include signal terminals 1382, magnetic elements 1384, positioning structures 1386, and locking elements 1388. The signal terminals 1382 are connected to the signal lines 134, and the signal terminals 1382 extend along the first direction D1 to protrude from the surface 1362A. The magnetic element 1384 is, for example, a magnet. The magnetic element 1384 is embedded in the mounting portion 1362, and the magnetic element 1384 has an outer surface that exposes a surface 1362A of the mounting portion 1362. Further, the outer surface of the magnetic element 1384 is substantially parallel to the surface 1362A of the mount 1362. The positioning structures 1386 of the mount 1362 protrude from a surface 1362A of the mount 1362 in the first direction D1. For example, the positioning structure 1386 may be a positioning post. The locking member 1388 of the mount 1362 passes through the mount 1362 in the first direction D1 and protrudes from a surface 1362A of the mount 1362. For example, the locking member 1388 may be a screw.

Fig. 4 is a schematic view of the light source module 110. The docking portion 114 of the light source module 110 includes a plate body 1142 and a receiving cavity 1144. The plate body 1142 extends radially with the first direction D1 as an axis, and the receiving 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 receiving cavity 1144 of the docking portion 114. When the mounting portion 1362 is abutted against the abutting portion 114, the surface 1362A of the mounting portion 1362 and the outer surface of the magnetic element 1384 are in contact with the plate body 1142 of the abutting portion 114. Since the plate 1142 has a larger area, it can block the mounting portion 1362, so as to increase the stability of the mounting portion 1362 in abutting against the abutting portion 114.

A plurality of elements including contact terminals 1162, a magnetic sensing switch 1164, a positioning structure 1166, and a locking hole 1168 are disposed on the board body 1142 of the docking portion 114. The contact terminals 1162 are configured to electrically contact the signal terminals 1382 of the mounting portion 1362. In other words, the mounting portion 1362 and the docking portion 114 are docked in contact to electrically connect the optical fiber assembly mechanism 130 and the light source module 110 and 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, 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 assembly 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 mount portion 1362. When the light source module 110 and the projection module 120 are assembled with the optical fiber assembly mechanism 130, the contact-type electrical connection between the contact terminal 1162 and the signal terminal 1382 and the non-contact-type electrical connection between the magnetic sensing switch 1164 and the magnetic element 1384 form a linked switch capable of controlling the light source to be turned on or off. The mechanism of the ganged switch described above will be described in detail later.

The positioning structures 1166 of the docking portion 114 are configured to mate with the positioning structures 1386 of the mounts 1362. For example, the positioning structure 1166 may be a positioning through hole configured to receive a positioning pillar. In addition, the positioning structure 1386 on the mounting portion 1362 protrudes along the first direction D1 by a length greater than the length of the signal terminal 1382, so that the rotational misalignment between the abutting portion 114 and the mounting portion 1362 can be avoided by the engagement between the positioning through hole and the positioning boss before the contact terminal 1162 and the signal terminal 1382 contact each other. In this way, the damage to the contact terminals 1162 and the signal terminals 1382 during the assembly process can be avoided. In other embodiments, the

positioning structures

1166 and 1386 may be other structures with positioning functions, which are not intended to limit the disclosure.

The locking hole 1168 of the docking portion 114 is configured to connect with the locking member 1388 of the mounting portion 1362 to fix the docking portion 114 and the mounting portion 1362 relative to each other. For example, the locking holes 1168 are threaded holes that mate with screws. In other embodiments, the locking member 1388 and the locking hole 1168 may be other structures with locking function, which is not intended to limit the disclosure.

Fig. 5 is a cross-sectional view of the light source module 110 and the optical fiber assembling mechanism 130 of fig. 2 assembled together. The receiving cavity 1144 has a depth H1, and the signal terminals 1382 and the contact terminals 1162 have an effective contact distance H2. The depth H1 of the receiving cavity 1144 is greater than the effective contact distance H2 between the signal terminals 1382 and the contact terminals 1162. In other words, the length of the engaging segments 1322 is also equal to the depth H1 of the receiving cavity 1144, and the length of the engaging segments 1322 is greater than the effective contact distance H2 between the signal terminals 1382 and the contact terminals 1162. In some embodiments, the 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 millimeters to 0.9 millimeters, and the effective contact distance H2 is preferably 0.8 millimeters.

The magnetic sensing switch 1164 has an effective sensing distance H3 from the magnetic element 1384. The depth H1 of the receiving 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 engaging segment 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 millimeters, and the effective sensing distance H3 preferably falls within a range of about 6 millimeters to 7 millimeters.

Fig. 6 is an electrical connection diagram of the projection apparatus 100 according to an embodiment of the disclosure. The contact terminal 1162 of the light source module 110 and the magnetic sensing switch 1164 are electrically connected to each other, and the contact terminal 1262 of the projection module 120 and the magnetic sensing switch 1264 are also electrically connected to each other. The signal terminals 1382 of the assembly structure 136 at the 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 1264 of the projection module 120) is electrically connected to the magnetic element 1384, the switch control loop IL may be connected to enable the detection circuit 1188 to transmit a command to turn on the power switch 1184. At this time, power may 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 is transmitted to the projection module 120 through the optical fiber assembly mechanism 130.

See also fig. 5 and 6. Since the depth H1 (i.e., the length of the engaging section 1322) of the receiving cavity 1144 is greater than the effective contact distance H2 and the effective sensing distance H3, it can be ensured that the engaging section 1322 of the optical fiber 132 of the optical fiber assembling mechanism 130 is already assembled in the receiving cavity 1144 when the power supply unit 1182 supplies power. In other words, the engaging segments 1322 are assembled into the receiving cavities 1144 before the distance between the contact terminals 1162 and the signal terminals 1382 is reduced to be less than the effective contact distance H2 without causing a risk due to the exposure of the light L. Similarly, the engaging segment 1322 is assembled into the receiving cavity 1144 before the distance between the magnetic sensor switch 1164 and the magnetic element 1384 is reduced to be less than the effective sensing distance H3, so as to prevent the light L from exposing to cause a danger.

In other words, when the contact terminal 1162 and the signal terminal 1382 are separated by a distance greater than the effective contact distance H2 during the process of detaching the optical fiber assembly mechanism 130 from the light source module 110, a portion of the engaging segment 1322 remains in the receiving cavity 1144. Similarly, when the magnetic sensing switch 1164 and the magnetic element 1384 are separated by a distance greater than the effective sensing distance H3 during the process of detaching the optical fiber assembly mechanism 130 from the light source module 110, a portion of the engaging segment 1322 remains in the accommodating cavity 1144. Therefore, the projection apparatus 100 can ensure that the switch control circuit IL is turned off before the optical fiber assembling mechanism 130 is completely detached from the light source module 110, and the detection circuit 1188 transmits a command to turn off the power switch 1184. Therefore, the danger caused by the light L being exposed 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 apparatus 100a according to another embodiment of the disclosure. The projection apparatus 100 is substantially the same as the projection apparatus 100 shown in fig. 1, and the difference is that the projection apparatus 100a has a plurality of

light source modules

110a,110b,110c,110d,110e, and 110 f. The optical fiber assembly mechanism 130a of the projection apparatus 100 has an assembly structure (not shown) corresponding to the plurality of docking portions 114 of the light source modules 110a-110 f. The optical fiber assembly mechanism 130a can couple and transmit light to the docking portion 124 of the corresponding projection module 120 by using an optical coupler, a light equalizer, and other elements. The projection apparatus 100a has the same technical effects as the projection apparatus 100 shown in fig. 1, and the details are not repeated herein.

Fig. 8 is a schematic diagram of a projection apparatus 100b according to another embodiment of the disclosure. The projection apparatus 100b is substantially the same as the projection apparatus 100 shown in fig. 1, and differs therefrom in that the projection apparatus 100b has a plurality of

projection modules

120a,120b, and 120 c. The optical fiber assembly mechanism 130b of the projection apparatus 100b has an assembly structure (not shown) corresponding to the plurality of docking portions 114 of the projection modules 120a-120 c. The optical fiber assembly mechanism 130b may be used with an optical splitter to split and transmit light to the docking portion 124 of the corresponding projection module 120a-120 c. The projection apparatus 100b has the same technical effects as the projection apparatus 100 shown in fig. 1, and the details are not repeated herein.

Fig. 9 is a schematic diagram of a projection apparatus 100c according to another embodiment of the disclosure. The projection apparatus 100c is substantially the same as the projection apparatus 100 shown in fig. 1, and the difference is that the projection apparatus 100c has a plurality of

light source modules

110a and 110b and a plurality of

projection modules

120a,120b and 120 c. The optical fiber assembly mechanism 130c of the projection apparatus 100 has an assembly structure (not shown) corresponding to the docking portions 114 of the

light source modules

110a and 110b and an assembly structure (not shown) corresponding to the docking portions 124 of the projection modules 120a-120 c. The optical fiber assembly mechanism 130c may be used with optical couplers, optical equalizers, and optical splitters to transmit light from the

light source modules

110a,110b to the projection modules 120a-120 c. The projection apparatus 100c has the same technical effects as the projection apparatus 100 shown in fig. 1, and the details are not repeated herein.

Fig. 10 is an electrical connection diagram of the projection apparatus 100c of fig. 9 according to the disclosure. The detecting circuit 1188a of the light source module 110a of the projecting apparatus 100c and the detecting circuit 1188b of the light source module 110b are electrically connected to each other. 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 120 c. The optical fiber assembly mechanism 130c is electrically connected to the signal lines 134 of the plurality of projection modules 120a-120 c. When the optical fiber assembly mechanism 130c is abutted with the

light source modules

110a and 110b and the projection modules 120a to 120c, as long as any one of the electrical connection relations is not established, the

detection circuits

1188a and 1188b transmit instructions to turn off the

power switches

1184a and 1184 b.

In summary, the optical fiber assembly mechanism of the present disclosure can ensure that the power switch is turned off before the optical fiber assembly mechanism is completely detached from the light source module (or the projection module) by making 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 effective sensing distance between the magnetic sensing switch and the magnetic element. 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 be ensured that the connection section of the optical fiber is already assembled into the accommodating cavity when the light source module is started. Therefore, the danger caused by the exposure of light can be avoided.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. An optical fiber assembly mechanism including

An optical fiber extending along a first direction;

a signal line extending along the first direction; and

the assembling structure is arranged at the tail ends of the optical fiber and the signal line, surrounds the optical fiber and the signal line, and is provided with an installing part, the installing part extends radially by taking the first direction as an axis direction, the installing part is provided with a plurality of elements, the elements are exposed out of one surface of the installing part, and the surface has a normal direction parallel to the first direction.

2. The optical fiber assembly mechanism of claim 1, wherein the component of the mounting portion includes a plurality of signal terminals connected to the signal line, and the plurality of signal terminals extend along the first direction.

3. The optical fiber assembly mechanism of claim 1, wherein the component of the mounting portion comprises a magnetic component.

4. The optical fiber assembly mechanism of claim 1, wherein the component of the mounting portion includes a positioning structure, and the positioning structure protrudes from the mounting portion along the first direction.

5. The optical fiber assembly mechanism of claim 1, wherein the component of the mounting portion includes a locking member that extends through the mounting portion in the first direction and protrudes from the surface of the mounting portion.

6. A projection apparatus, comprising:

a plurality of optical fiber assembly mechanisms, wherein each optical fiber assembly mechanism comprises:

an optical fiber extending along a first direction;

a signal line extending along the first direction; and

the assembling structure is arranged at the tail ends of the optical fiber and the signal line, surrounds the optical fiber and the signal line, and is provided with an installing part, the installing part radially extends by taking the first direction as an axis direction, the installing part is provided with a plurality of elements, the elements are exposed out of one surface of the installing part, and the surface has a normal direction parallel to the first direction;

at least one light source module, which comprises a butt joint part configured to be in butt joint with the installation part of one of the optical fiber assembly mechanisms along the first direction; and

at least one projection module comprises a butting part which is configured to be butted with the mounting part of another one of the optical fiber assembling mechanisms along the first direction.

7. The projection apparatus according to claim 6 wherein each of the docking portions comprises a plate extending radially around the first direction and a cavity recessed along the first direction.

8. The projection apparatus according to claim 7, wherein each of the components of the mounting portion comprises a plurality of signal terminals connected to the signal lines, each of the mating portions comprises a plurality of contact terminals configured to electrically contact the plurality of signal terminals along the first direction, and the receiving cavity has a depth greater than an effective contact distance between the plurality of contact terminals and the plurality of signal terminals.

9. The projection apparatus according to claim 7, wherein each of the elements of the mounting portion comprises a magnetic element, each of the mating portions comprises a magnetic sensing switch, the magnetic sensing switches are configured to be magnetically connected to the magnetic elements along the first direction, and a depth of the receiving cavity is greater than an effective sensing distance between the magnetic sensing switches and the magnetic elements.

10. The projection apparatus according to claim 8, wherein each of the docking portions comprises a plurality of signal terminals and a magnetic sensing switch, and the plurality of contact terminals of each of the docking portions are electrically connected to the magnetic sensing switch.

11. The projection apparatus according to claim 6, wherein the component of each of the mounting portions comprises a positioning structure, each of the mating portions comprises a positioning structure, and the positioning structure of the mating portion is configured to mate with the positioning structure of the mounting portion along the first direction.

12. The projection apparatus according to claim 6, wherein each of the elements of the mounting portion comprises a locking member, each of the mating portions comprises a locking hole, and the locking holes of the mating portions are configured to connect the locking members of the mounting portion along the first direction.

13. The projection apparatus according to claim 6, wherein the number of the light source modules is plural.

14. The projection apparatus according to claim 6 wherein the number of projection modules is plural.

15. The projection apparatus according to claim 6 wherein the number of the light source modules is plural, and the number of the projection modules is plural.