Optical device

Abstract

The present invention relates to an optical device comprising: a base assembly for connecting a prism module lens group; a first optical component; the first optical component bearing seat is connected to the base and is used for bearing the first optical component; the adjusting assembly comprises an adjustable part, an elastic part and a connecting part, the adjustable part and the connecting part penetrate through the first optical assembly bearing seat and then are movably connected to the base assembly, and the elastic part abuts against the position between the first optical assembly bearing seat and the base assembly; when the adjustable part is adjusted relative to the base assembly, the elastic force of the elastic part between the first optical assembly bearing seat and the base assembly can be adjusted in a linkage mode, and the first optical assembly bearing seat can move in the axial direction of the connecting part or rotate around the axial direction of the connecting part.

Description

Technical Field

[0001] This invention relates to an optical device. Background Technology

[0002] like Figure 1 As shown, the existing rangefinder 10 includes an objective lens group (not shown), a prism module 11, an organic light-emitting diode 12, a light emitter 13, a light receiver (not shown), and an eyepiece group (not shown). The prism module 11 is disposed between the objective lens group and the eyepiece group, and includes a first prism 14, a second prism 15, and a third prism 16.

[0003] During operation, a first light beam A emitted by an object (not shown) passes sequentially through the objective lens group, the second prism 15, the third prism 16, and the eyepiece group to allow the user to view the image of the object. A second light beam B emitted by an organic light-emitting diode 12 is reflected by a reflector 17 and passes sequentially through a first prism 14, a second prism 15, a third prism 16, and the eyepiece group to allow the user to view the image information and crosshairs generated by the organic light-emitting diode 12. A third light beam C emitted by a light emitter 13 reaches the object via another reflector 18, a first prism 14, a second prism 15, and the objective lens group, and is reflected back to the light receiver by the object to calculate the distance of the object from the rangefinder 10.

[0004] In existing rangefinders, the light spot is usually not adjustable or is inconvenient to adjust, which is not conducive to user operation. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an optical device that can adjust its light spot, addressing the shortcomings of existing optical devices where the light spot cannot be adjusted or is inconvenient to adjust.

[0006] The technical solution adopted by this invention to solve its technical problem is: construction

[0007] An optical device, comprising:

[0008] Base assembly for connecting the lens group of the prism module;

[0009] First optical component;

[0010] A first optical component carrier, connected to the base and used to support the first optical component; and

[0011] The adjustment component includes an adjustable member, an elastic member, and a connecting member. The adjustable member and the connecting member are movably connected to the base assembly after passing through the first optical component carrier. The elastic member abuts against the first optical component carrier and the base assembly. When the adjustable member is adjusted relative to the base assembly, it will adjust the elastic force of the elastic member between the first optical component carrier and the base assembly, and allow the first optical component carrier to move along the axial direction of the connecting member or rotate around the axial direction of the connecting member.

[0012] According to the optical device of the present invention, the adjustable member is threadedly connected to the base assembly, and the elastic member is sleeved outside the adjustable member.

[0013] According to the optical device of the present invention, the first optical component is used to reflect light to the prism module, or reflect light from the prism module, or emit light to the prism module; the first optical component carrier is provided with a hole, and the adjustable member passes through the hole on the first optical component carrier and is connected to the base assembly. The size of the hole is larger than the size of the corresponding part in which the adjustable member is accommodated. When the first optical component carrier rotates relative to the base assembly, the hole on the first optical component carrier provides space for the first optical component carrier to rotate relative to the adjustable member.

[0014] According to the optical device of the present invention, the optical device further includes: a PCB assembly, the PCB assembly including a shield and a PCB disposed therein; and

[0015] A transmitter or receiver electrically connected to the PCB, wherein the transmitter is used to emit light to the first optical component, and the receiver is used to receive light reflected by the first optical component;

[0016] The PCB assembly is disposed on the base assembly, and at least the PCB is capable of linear movement relative to the base assembly for adjustment.

[0017] According to the optical device of the present invention, the first optical component carrier includes: a first support portion for supporting the first optical component; a connector connected to the first support portion, the connector being a rotating shaft rotatably connected to the base assembly; and an adjustment component connecting portion fixedly connected to at least one of the first support portion and the connector, the adjustable component being adjustablely connected to the base assembly after passing through the adjustment component connecting portion.

[0018] According to the optical device of the present invention, the optical device further includes a limiting member, which is an integrally bent pressure plate and includes a PCB assembly limiting part, a carrier limiting part, and an intermediate part connected between the two; the carrier limiting part is fixedly connected to the base assembly and presses against the connector of the first optical assembly carrier; the PCB assembly limiting part presses against the PCB assembly, so that the PCB assembly is limited in a second direction perpendicular to the first direction, but can be moved upward along the first direction and a third direction for adjustment under the action of external force; wherein the first direction is parallel to the axial direction of the connector.

[0019] According to the optical device of the present invention, the included angle between the PCB assembly limiting part and the middle part is no greater than 90 degrees, and the second direction and the third direction are both perpendicular to the first direction.

[0020] According to the optical device of the present invention, the optical device further includes a carrier connecting portion, the carrier connecting portion being fixed to the base assembly, a connector being provided on one of the carrier connecting portion and the first optical component carrier, and a hole cooperating with the connector being provided on the other of the carrier connecting portion and the first optical component carrier; wherein the first direction is parallel to the axial direction of the connector.

[0021] According to the optical device of the present invention, the first optical component carrier includes:

[0022] Main body;

[0023] A lug extending perpendicular to the first direction, the lug having a hole that mates with the connector, the lug being connected to a first side edge of the main body, and the lug being capable of linear movement along the connector in the first direction; and

[0024] A first support portion for supporting the first optical component is connected to the second side edge of the main body portion, and a hole through which the adjustable member passes is located near the third side edge of the main body portion;

[0025] The optical device further includes a lens module disposed between the first optical component and the prism module;

[0026] The carrier connection portion includes: a first part fixed to the base assembly, the first part being L-shaped; a second part fixed at an angle to the first part, on which the connector is provided; and a third part, in which the lens module is sleeved within the third part and is capable of linear movement relative to the third part along the optical axis of the lens module, and a lens adjustment groove extending along the optical axis of the lens module is provided on the carrier connection portion, the lens module cooperating with the lens adjustment groove.

[0027] According to the optical device of the present invention, the base assembly is a second base assembly.

[0028] The optical device also includes a first base assembly;

[0029] The first optical component carrier is connected to the first base assembly via the second base assembly. The connector is provided on one of the second base assembly and the first optical component carrier, and a guide hole is provided on the other. The connector engages with the guide hole and both extend in a first direction; wherein the first direction is parallel to the axial direction of the connector.

[0030] The optical device of this application allows for very convenient adjustment of the reflector that mates with the prism module, thereby achieving adjustment of the light spot. Adjustment of the PCB assembly allows for adjustment of the light spot in another direction. Furthermore, adjustment of the lens frame allows for adjustment of the focal length of the entire optical device. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of an existing rangefinder;

[0033] Figure 2A This is a schematic diagram of the optical system according to the present invention;

[0034] Figure 2B This is a schematic diagram of the prism module of the optical system of the present invention;

[0035] Figure 3 This is a perspective view of the emission system of an optical device according to an embodiment of the present invention;

[0036] Figure 4 This is another perspective view of the emission system of an optical device according to an embodiment of the present invention;

[0037] Figure 5 yes Figure 3 The exploded view of the launch system shown;

[0038] Figure 6 yes Figure 3 Another exploded view of the launch system shown, in which the prism module is omitted;

[0039] Figure 7 This is a perspective view of the receiving system of an optical device according to another embodiment of the present invention;

[0040] Figure 8 This is another perspective view of the receiving system of an optical device according to another embodiment of the present invention;

[0041] Figure 9 yes Figure 7 The exploded view of the receiving system shown;

[0042] Figure 10 yes Figure 9 The diagram shows some components of the receiving system.

[0043] Figure 11 This is an exploded view of the display module of an optical device according to another embodiment of the present invention;

[0044] Figure 12 This is another exploded view of the display module of an optical device according to yet another embodiment of the present invention;

[0045] Figure 13 This is a schematic diagram of a display module of an optical device according to another embodiment of the present invention;

[0046] Figure 14 This is a schematic diagram of a display module of an optical device according to another embodiment of the present invention, showing a cross-sectional view of a portion of the structure;

[0047] Figure 15 This is a schematic diagram of a display module of an optical device according to another embodiment of the present invention, showing a cross-sectional view of another part of the structure. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0049] Please see Figure 2A and 2BThe first embodiment of the optical device of the present invention is a telescope with a rangefinding function, which includes two optical systems 1 and 2. The main difference between the two optical systems 1 and 2 is that one optical system 1 is equipped with a light emitter 23, while the other optical system 2 is equipped with a light receiver 24. The other components and their configurations are largely the same. Optical system 1 is located in the transmitting system of the optical device, and the other optical system 2 is located in the receiving system of the optical device.

[0050] In this exemplary embodiment, the optical system 1 includes an objective lens unit 21, an eyepiece unit 22, a display 26, a reflector 27, a lens group 28, a prism module 10, and a light emitter 23. Light emitted from the object 3 passes sequentially through the objective lens unit 21, the prism module 10, and the eyepiece unit 22. Secondary light emitted from the display unit 26 is reflected by the reflector 27 and then sequentially passes through the lens group 28, the prism module 10, and the eyepiece unit 22. Thirdary light emitted from the light emitter 23 passes sequentially through the prism module 10 and the objective lens unit 21, reaches the object 3, is reflected back to the other optical system 2 of the telescope, and is received by the light receiver 24. With this configuration, the user can view the image of the object 3 and the image generated by the display unit 26 through the eyepiece unit 22, and determine the distance between the object 3 and the telescope.

[0051] The prism module 10 may include multiple prisms. The following is an example illustrated, but the invention is not limited thereto, and the composition of the prism module 10 may also be in other forms. In the illustrated embodiment, the prism module 10 is disposed between the objective lens unit 21 and the eyepiece unit 22, and includes a first prism 11, a second prism 12, and a third prism 13.

[0052] In the first embodiment, the first prism 11 is a roof prism and includes a face 111, a second face 112, a thirteenth face 113, a third face 114, and a fourteenth face 115 that are connected to each other. Specifically, in the first embodiment, the first face 111 is adjacent to the second face 112, the thirteenth face 113 is adjacent to both the second face 112 and the third face 114, and the fourteenth face 115 is adjacent to both the third face 114 and the first face 111. It is worth noting the angle between the third face 114 and the first face 111 and the second face 112.

[0053] The second prism 12 is disposed next to the first prism 11 with a gap between them. In the first embodiment, the second prism 12 is a half-pentagonal prism and includes a first part 121 and a second part 122. The first part 121 includes a fourth face 1211, a fifteenth face 1212, a fifth face 1213, a sixteenth face 1214, and a sixth face 1215 that are connected to each other. Specifically, the fourth face 1211 faces the second face 112, the fifteenth face 1212 is adjacent to both the fourth face 1211 and the fifth face 1213, the fifth face 1213 is opposite to the fourth face 1211, the sixteenth face 1214 is adjacent to the fifth face 1213, and the sixth face 1215 is adjacent to both the fourth face 1211 and the sixteenth face 1214. The second part 122 includes the seventh face 1222, the seventeenth face 1223, the eighth face 1224 and the ninth face 1221 that are connected to each other. Specifically, the seventh face 1222 faces the sixth face 1215, the eighth face 1224 is opposite to the seventh face 1222, and the ninth face 1221 is adjacent to both the seventh face 1222 and the eighth face 1224.

[0054] In the first embodiment, a thin film 15 may be disposed between the first part 121 and the second part 122. Specifically, the thin film 15 is disposed between the seventh surface 1222 and the sixth surface 1215. The thin film 15 may be formed on the seventh surface 1222 or the sixth surface 1215 first. The thin film 15 allows visible light of a specific wavelength (e.g., the aforementioned first light) to pass through but reflects visible light of another specific wavelength (e.g., the aforementioned second light).

[0055] The third prism 13 is attached to the second prism 12. In the first embodiment, the third prism 13 is a triangular prism and includes a tenth facet 131, an eleventh facet 132, an eighteenth facet 133, and a twelfth facet 134 that are connected to each other. Specifically, the tenth facet 131 is adjacent to both the eleventh facet 132 and the twelfth facet 134, and the eighteenth facet 133 is adjacent to both the eleventh facet 132 and the twelfth facet 134 and is opposite to the tenth facet 131.

[0056] In the first embodiment, a thin film 14 is disposed between the second prism 12 and the third prism 13. Specifically, the thin film 14 is disposed between the fifth surface 1213 and the tenth surface 131. The thin film 14 may be formed on the fifth surface 1213 or the tenth surface 131. The thin film 14 allows visible light of a specific wavelength (such as the aforementioned first light) to pass through but reflects invisible light of a specific wavelength (such as the aforementioned third light).

[0057] In addition to the above embodiments, the first prism 11, the second prism 12, and the third prism 13 may also be combined in other ways, and the composition of the prism module 10 may also be in other ways.

[0058] Figure 3This is a perspective view of the emission system of an optical device according to an embodiment of the present invention; Figure 4 This is another perspective view of the emission system of an optical device according to an embodiment of the present invention; Figure 5 yes Figure 3 The exploded view of the launch system shown; Figure 6 yes Figure 3 Another exploded view of the launch system shown, in which the prism module is omitted; as Figures 3 to 6 As shown, the emission system 100 of the optical device includes: a prism module 10; a first base assembly 101 for housing the prism module 10; a first optical component 29 for reflecting light to or from the prism module 10; a first optical component carrier 102 connected to the first base assembly 101 and for supporting the first optical component 29; a PCB (Printed Circuit Board) assembly 103; and an adjustment assembly 105 for adjusting the first optical component carrier 102 to adjust the light spot. In this embodiment, the first optical component 102 is a reflector used to reflect light to or from the prism module 10, but it does not necessarily mean that it directly reflects light to or from the prism module 10. Other reflectors may also be provided between the first optical component 29 and the prism module 10.

[0059] The structure of the receiving system 200 is basically the same as that of the transmitting system 100. The only difference between the two is that the transmitting system 100 is equipped with an optical transmitter 23, while the receiving system 200 is equipped with an optical receiver 24.

[0060] Specifically, the first base assembly 101 includes a first base 1011, a second base 1012, and a third base 1013. The first base 1011 has a hole 1011a for light to pass through; in the illustrated embodiment, the first base 1011 is generally annular. The second base 1012 and the third base 1013 are generally plate-shaped, with one end connected to the same side of the first base 1011 and extending parallel to the axial direction of the hole 1011a on the first base 1011. The second base 1012 and the third base 1013 are located on opposite sides of the hole 1011a to avoid interfering with the light entering through the hole 1011a. In the illustrated embodiment, the first to third bases 1011-1013 together enclose a receiving space, in which the aforementioned prism module 10 is connected and received.

[0061] On the inner surfaces of the second base 1012 and the third base 1013 facing each other, a first limiting portion is provided. This first limiting portion, together with the first base 1011, limits the first prism 11 of the prism module 10 in an axial direction parallel to the hole 1011a. In the illustrated embodiment, on the inner surfaces of the second base 1012 and the third base 1013 facing each other, taking the second base 1012 as an example (the third base 1013 is exactly the same), the first portion 1012b near the first base 1011 is thinner, while the second portion 1012c away from the first base 1011 is thicker, thereby forming a stepped surface 1012f opposite to the first base 1011 on the inner surface. The stepped surface 1012f serves as the first limiting part. One surface of the first prism 11 (e.g., the first surface 111) abuts against the first base 1011, and the other opposite surface (e.g., the second surface 112) abuts against the stepped surface 1012f, thereby limiting the first prism 11 in the axial direction parallel to the hole 1011a.

[0062] Other structures can also be used to form the first limiting part. In one embodiment, a through hole 1012d is formed below the stepped surface 1012f on the inner surfaces of the second base 1012 and the third base 1013 that are opposite to each other. Adhesive can be applied through the through hole 1012d to accommodate the adhesive and bond and fix the first prism 11 and the first base assembly 101.

[0063] In one embodiment, the first base assembly 101 further includes a spacer 1014, the main body of which is generally plate-shaped. The spacer 1014 has multiple through holes 1014a and 1014b, which allow light rays from different paths or different directions along the same path to pass through, thus preventing interference between light rays. The spacer 1014 abuts against the stepped surface 1012f and against the second surface 112 of the first prism 11, thereby limiting the position of the first prism 11. On both sides of the main body of the spacer 1014, ears extending towards the first base 1011 are also provided. These ears are perpendicular to the main body of the spacer 1014 and parallel to and abut against the inner surfaces of the second base 1012 and the third base 1013, facilitating the positioning of the spacer 1014.

[0064] Second limiting portions 1012e and 1013e ​​are provided on the second base 1012 and the third base 1013, respectively. These second limiting portions 1012e and 1013e ​​extend towards each other from the side edges of the second base 1012 and the third base 1013 along a direction perpendicular to the second base 1012 and the third base 1013. When the second prism 12 is installed, the second limiting portions 1012e and 1013e, together with the second surface of the first prism 11, limit the second prism 12. In an embodiment where a spacer 1014 is provided, the second limiting portions 1012e and 1013e, together with the spacer 1014, limit the second prism 12. The fourth surface 1211 abuts against the spacer 1014, and the fifth surface 1213 abuts against the second limiting portions 1012e and 1013e. Similarly, a through hole is provided on the second part 1012c, through which the second prism 12 and the first base assembly 101 can be bonded and fixed by applying adhesive.

[0065] If the prism module 10 also has a third prism 13, the third prism 13 can be glued and fixed to the second prism 12, for example, fixed to the fifth face 1213.

[0066] The first optical component carrier 102 is connected to the first base assembly 101 and is used to carry the first optical component 29, which may be a reflective element. In the transmitting system 100, the first optical component 29 is used to reflect the light emitted by the light emitter 23, causing it to travel to the prism module 10, such as the third prism 13. In the receiving system 200, the first optical component 29 is used to reflect the light emitted from the prism module 10 to the light receiver 24. In addition to the first optical component 29, the optical device may also include a second optical component 30 that cooperates with the first optical component 29. The second optical component 30 may be a reflective element, and the light travels after being reflected by both the first optical component 29 and the second optical component 30.

[0067] The first optical component carrier 102 is rotatably connected to the outer surface of one of the second base 1012 and the third base 1013, and is close to its aforementioned side edge. In the illustrated embodiment, the first optical component carrier 102 is connected to the second base 1012 and is close to the second limiting portions 1012e and 1013e.

[0068] The first optical component carrier 102 includes: a first support portion 1021 for supporting the first optical component 29; a connector 1022 connected to the first support portion 1021, wherein the connection point between the connector 1022 and the first support portion 1021 is the fixed end of the connector 1022, and the opposite end is the free end; and an adjustment component connecting portion 1023 fixedly connected to at least one of the first support portion 1021 and the connector 1022. The connector 1022 may be a connecting shaft with an axial direction extending along a first direction X, such that the axial direction of the connector 1022 passes through the fixed end and the free end. That is, the axial direction of the connector 1022 is parallel to the first direction X. The first support portion 1021 and the adjustment component connecting portion 1023 may be fixed to the connector 1022 and extend in opposite directions toward both sides of the axis of the connector 1022. A limiting groove 1012g is provided on the second base 1012, and the connector 1022 is accommodated in the limiting groove 1012g. The length of the limiting groove 1012g is equal to the distance between the two ends of the connector 1022, so that the connector 1022 cannot move linearly along its axial direction (i.e., the first direction X).

[0069] The PCB assembly 103 includes a shield and a PCB disposed therein, the PCB assembly 103 is placed on the same of the second base 1012 and the third base 1013, and is connected to the transmitter 23 and / or the receiver 24.

[0070] The transmitting system 100 also includes a limiting member 104 for positioning the first optical component carrier 102 and the PCB assembly relative to the first base assembly 101. Since the PCB assembly 103 has a certain thickness and its height is greater than the height of the connector 1022, in the illustrated embodiment, the limiting member 104 can be a pressure plate, generally bent, comprising a PCB assembly limiting portion 1041, a carrier limiting portion 1042, and an intermediate portion 1043 connecting the two. The included angle between the PCB assembly limiting portion 1041 and the intermediate portion 1043 is no greater than 90 degrees. The carrier limiting portion 1042 is fixed to the same entity as the second base 1012 and the third base 1013 by the connector, pressing down on the connector 1022, preventing the connector 1022 from moving linearly. The PCB assembly limiting part 1041 limits the PCB assembly 103 in the second direction Y, preventing it from moving along the direction that pushes against the PCB assembly limiting part 1041. However, it can be adjusted by moving in the axial direction of the connector 1022 (i.e., the first direction X) and in the third direction Z perpendicular to the axial direction, thereby realizing the adjustment of the position and focus of the light spot.

[0071] An adjustment assembly 105 is also provided on the same of the second base 1012 and the third base 1013. The adjustment assembly 105 includes an adjustable member 1051 and an elastic member 1052. The adjustable member 1051 passes through the first optical component carrier 102 and is adjustablely connected to the same of the second base 1012 and the third base 1013. The elastic member 1052 abuts against the first optical component carrier 102 and the first base assembly 101, and constantly applies a spring force to the first optical component carrier 102 to move it away from the first base assembly 101 and press against the adjustable member 1051. When the adjustable member 1051 is adjusted relative to the first base assembly 101, the first optical component carrier 102 rotates relative to the first base assembly 101 around the connector 1022.

[0072] In the illustrated embodiment, the adjustable member 1051 is connected to the same bolt 1051 on the second base 1012 and the third base 1013 by a threaded connection, and the elastic member 1052 is sleeved on the shank of the bolt 1051. The adjusting component connecting portion 1023 of the first optical component carrier 102 has a hole 1023a. The bolt 1051 is connected to the first base assembly 101 through the hole 1023a. The elastic member 1052 constantly applies a spring force to the adjusting component connecting portion 1023, causing it to abut against the cap of the bolt 1051 to maintain fixation.

[0073] When adjustment of the first optical component 29 is required, rotating the bolt 1051 changes its height, causing the first optical component carrier 102 to rotate around the connector 1022, thus adjusting the position of the light spot. To prevent jamming, the hole 1023a can be an elongated hole, or its size can be larger than the size of the corresponding portion of the adjustable member 1051 in which it is received, providing space for the first optical component carrier 102 to rotate relative to the adjustable member 10511. For example, the elongated hole can extend in a direction perpendicular to the first direction X, or its size in a direction perpendicular to the first direction X can be larger than the size of the corresponding portion of the adjustable member 1051 in which it is received.

[0074] The second optical component 30 is fixed by a second optical component carrier 106. The second optical component carrier 106 includes a first portion 1061 fixed to the other of the second base 1012 and the third base 1013, a second portion 1062 connected at an angle to 1061, and a second support portion 1063 connected to the end of the second portion 1062. The second portion 1062 extends from the first portion 1061 to between the second base 1012 and the third base 1013. The second optical component 30 is fixed to the second support portion 1063 at the end of the second portion 1062. The first portion 1061 and the second portion 1062 can be arranged at a right angle.

[0075] Figure 7This is a perspective view of the receiving system of an optical device according to another embodiment of the present invention; Figure 8 This is another perspective view of the receiving system of an optical device according to another embodiment of the present invention; Figure 9 yes Figure 7 The exploded view of the receiving system shown; Figure 10 yes Figure 9 The diagram shows some components of the receiving system. Similar to the above embodiments, the structure of the receiving system 200 can also be applied to the transmitting system 100. The only difference is that the transmitting system 100 has an optical transmitter 23, while the receiving system 200 has an optical receiver 24. For simplicity, the parts that are the same as in the above embodiments will not be described again here.

[0076] In this embodiment, the receiving system 200 of the optical device includes: a prism module 10; a first base assembly 201 for connecting and fixing the prism module 10; a first optical component 29; a first optical component carrier 202 connected to the first base assembly 201 and used to carry the first optical component 29; a PCB assembly 203; and an adjustment assembly 205 for adjusting the first optical component carrier 202, thereby adjusting the light spot. In this embodiment, the first optical component 29 may be, for example, a reflector.

[0077] The first base assembly 201 includes a first base 2011, a second base 2012, and a third base 2013. Furthermore, the first base assembly 201 also includes a fourth base 2015. Similar to the above embodiment, the second base 2012 and the third base 2013 are generally plate-shaped, with one end connected to the same side of the first base 2011. The fourth base 2015 is connected to the other end of the second base 2012 and the third base 2013; that is, the second base 2012 and the third base 2013 are connected between the first base 2011 and the fourth base 2015. The fourth base 2015 is generally annular or cylindrical and can be used to limit the axial displacement of the prism module 10. In the illustrated embodiment, the fourth base 2015 includes an annular first portion 2015a and a second portion 2015b fixedly connected axially to the first portion 2015a. The second part 2015b has smaller external dimensions than the first part 2015a, and includes a generally D-shaped outer peripheral wall 2015b-1 and a bottom wall 2015b-2 connected within the outer peripheral wall 2015b-1. The number of bottom walls 2015b-2 can be two oppositely arranged pieces. This application is not limited to this; the number of bottom walls 2015b-2 can be a single integral piece. The bottom wall 2015b-2 can be perpendicular to the axis of the first part 2015a.

[0078] On the other end of the second base 2012 and the third base 2013, there are connecting flanges 2012a and 2013a corresponding to the bottom wall 2015b-2, respectively. The bottom wall 2015b-2 is connected to the connecting flanges 2012a and 2013a along the axial direction of the fourth base 2015 through the connector, thereby fixing the fourth base 2015.

[0079] The second part 2015b-1 includes an interconnected arc-shaped portion and a straight portion, which together form a D-shaped outer contour. One end of the straight portion is close to the second base 2012, and the other end is close to the third base 2013. Two bottom walls 2015b-2 can be connected to the two ends of the straight portion, respectively. In the illustrated embodiment, the central angle corresponding to the arc-shaped portion is greater than 180 degrees. The bottom wall 2015b-2 and the outer peripheral wall 2015b-1 together define a light-transmitting hole 2015c corresponding to the prism module 10. A fixing post 2015b-2 is provided on the outer surface of the straight portion of the outer peripheral wall 2015b-1. This fixing post 2015b-2 can extend in a direction perpendicular to the axis of the first part 2015a, or it can form an acute angle with the axis. A corresponding clearance notch 2015a-1 is provided on the first part 2015a.

[0080] PCB assembly 203 is fixed to one of the second base 2012 and the third base 2013, with receiver 24 protruding from the side edge of the latter. First optical component carrier 202 is connected to the other of the second base 2012 and the third base 2013, such that the receiver on PCB assembly 203 and the first optical component 29 carried by the first optical component carrier 202 are opposite to each other. PCB assembly 203 includes an adjustment slot 2031 and a PCB connector 2032 disposed thereon. The adjustment slot 2031 passes through the shield and PCB of PCB assembly 203, and the PCB connector 2032 is connected to the first base assembly 201 via the adjustment slot 2031. Adjustment can be achieved by moving the shield and PCB relative to the PCB connector 2032. Alternatively, the adjustment slot 2031 may only pass through the PCB, allowing adjustment of the PCB alone, thereby adjusting the receiver 24 disposed thereon.

[0081] The receiving system 200 also includes a carrier connection portion 207, which is fixed to one of the second base portion 2012 and the third base portion 2013. A rotating shaft is provided on one of the carrier connection portion 207 and the first optical component carrier 202, and a hole that mates with the rotating shaft is provided on the other of the carrier connection portion 207 and the first optical component carrier 202.

[0082] In the illustrated embodiment, the support connection portion 207 includes a first portion 2071 for fixing to one of the second base portion 2012 and the third base portion 2013, and a second portion 2072 disposed at an angle to the first portion 2071. The first portion 2071 is generally L-shaped, fixed to the other of the second base portion 2012 and the third base portion 2013, and bends and extends above the side edge of the other and close to the second limiting portion 2012d.

[0083] The second portion 2072 extends from the first portion 2071 toward the fourth base 2015, and a connector 2073 extending in the first direction X is provided on the second portion 2072. In the illustrated embodiment, the second portion 2072 may be substantially parallel to the second base 2012 and the third base 2013.

[0084] One side of the first optical component carrier 202 is fitted onto the connector 2073, and can move linearly along the connector 2073 in the first direction X, and can rotate around the connector 2073. The first direction X can be parallel to the axis of the annular first portion 2015a of the fourth base 2015, and forms an acute angle with the side edges of the second base 2012 and the third base 2013.

[0085] An adjustment assembly 205 is provided on the fourth base 2015. The adjustment assembly 205 includes an adjustable member 2051 and an elastic member 2052. The adjustable member 2051 passes through a hole 2024 on the first optical component carrier 202 and is adjustablely connected to the fourth base 2015, for example, to the straight portion of the second part 2015b-1 of the fourth base 2015. The elastic member 2052 abuts against the first optical component carrier 202 and the first base assembly 201, and constantly applies a spring force to the first optical component carrier 202 to move it away from the first base assembly 201 and press it against the adjustable member 2051; when the adjustable member 2051 is adjusted relative to the first base assembly 201, the first optical component carrier 202 rotates relative to the first base assembly 201. The structure of the adjustable member 2051 is the same as in the embodiment described above.

[0086] In the illustrated embodiment, the first optical component carrier 202 comprises three parts: a main body 2021, which may be generally triangular in shape and parallel to the first direction X; a lug 2022 extending perpendicular to the first direction X, connected to the first side edge of the main body 2021, the lug 2022 being of two sizes and having a hole for fitting onto the connector 2073; and a support portion 2023 connected to the second side edge of the main body 2021, which may form an acute angle with the main body 2021, the support portion 2023 being used to directly support the first optical component 29. The hole 2024 on the first optical component carrier 202 is located near the third side edge of the main body 2021.

[0087] In an embodiment where a lens module 206 is provided in the receiving system 200, a lens adjustment groove 2074 is also provided on the support connecting portion 207. The lens module 206 is disposed between the reflector and the prism module 10, for example, between the first optical component 29 and the prism module 10 shown in the figure. The lens adjustment groove 2074 extends along the optical axis of the lens module 206, which may form an acute angle with the first direction X, for example, 45 degrees. The lens module 206 includes a lens frame 2061 and a lens 2062 disposed within the lens frame 2061. Lens frame shafts 2063 are provided on both sides of the lens frame 2061, extending perpendicularly to the third direction Z, cooperating with the lens adjustment groove 2074, and can move linearly along the third direction Z within the lens adjustment groove 2074 and rotate around the lens frame shafts 2063.

[0088] Specifically, in the illustrated embodiment, the support connecting portion 207 further includes a third portion 2075, which, along with the first portion 2071, can be located on opposite sides of the second portion 2072. The third portion 2075 can be annular or a portion of annular, and the lens frame 2061 is fitted within the third portion 2075. A lens adjustment groove 2074 is disposed on the third portion 2075 and extends into the second portion 2072.

[0089] Of course, by providing guide protrusions on the inner surface of the third part 2075 and providing guide recesses that cooperate with them on the outer surface of the frame 2061, the frame 2061 can only move along the third direction Z straight line and cannot rotate.

[0090] This embodiment of the receiving system 200 can also be applied to the transmitting system 100, and will not be described again here. It should be noted that although this application uses the same transmitting system 100 and receiving system 200 as an example, one of the transmitting system 100 and the receiving system 200 can be the structure described in the above embodiment, while the other is not, and the same purpose can be achieved.

[0091] The optical device of this application allows for very convenient adjustment of the reflector that cooperates with the prism module 10, thereby achieving adjustment of the light spot. Adjustment of the PCB assembly allows for adjustment of the light spot in another direction. Furthermore, adjustment of the lens frame 2061 allows for adjustment of the focal length of the entire optical device.

[0092] Figure 11 This is an exploded view of the display module 300 of an optical device according to another embodiment of the present invention; Figure 12 This is another exploded schematic diagram of the display module 300 of an optical device according to yet another embodiment of the present invention; Figure 13This is a schematic diagram of a display module 300 of an optical device according to another embodiment of the present invention; Figure 14 This is a schematic diagram of a display module 300 of an optical device according to another embodiment of the present invention, showing a cross-sectional view of a portion of the structure; Figure 15 This is a schematic diagram of a display module 300 of an optical device according to another embodiment of the present invention, showing a cross-sectional view of another portion of the structure. (Refer to...) Figure 11-15 The display module 300 includes Figure 2A , 2B The display component 26, reflector 27, and lens group 28 are shown. The second light emitted by the display component 26 is reflected by the reflector 27 and then passes sequentially through the lens group 28, prism module 10, and eyepiece unit 22. The user can view the image generated by the display component 26 through the eyepiece unit 22.

[0093] The lens group 28 includes a lens barrel and lenses disposed within the lens barrel. In the illustrated embodiment, the lens barrel 28 includes a first lens barrel 281, a second lens barrel 282, a first lens 283 fixedly disposed within the first lens barrel 281, and a second lens 284 and a third lens 285 fixedly disposed within the second lens barrel 282. The second lens barrel 282 can be a focusing lens barrel, which can move relative to the first lens barrel 281 to achieve focusing. The lens assembly 28 also includes a connecting seat 286, which includes a first connecting portion 2861 and a second connecting portion 2862 arranged at an angle. The first connecting portion 2861 is used to connect the lens barrel 28. The first connecting portion 2861 is provided with a hole for light to pass through. A radially extending connecting post 2811 is provided on the outer periphery of the lens barrel 28. A connecting groove 2861a extending along the axial direction of the lens barrel 28 is provided on the side peripheral surface of the first connecting portion 2861. The connecting post 2811 can move along the connecting groove 2861a to adjust the position of the lens barrel 28 and then fix it.

[0094] The second connecting portion 2862 is used to fix the reflector 27. The entire connecting base 286 can be fixed to the first base assembly 101 of the optical device via the intermediate portion 2863 connected between the first connecting portion 2861 and the second connecting portion 2862.

[0095] The display assembly 26 includes a first optical component 261, a first optical component carrier 262 for supporting the first optical component, a second base assembly 263 for fixing it, and an adjustment assembly 264 disposed between the first optical component carrier 262 and the second base assembly 263. The adjustment assembly 264 is used to adjust the first optical component carrier 262, thereby adjusting the light emitted by the first optical component 261. In this embodiment, the first optical component 261 is a display unit.

[0096] The adjustment component 264 includes a connector 266. The first optical component carrier 262 is movably connected to the first base component 101 via a second base component 263. The first optical component carrier 262 and the second base component 263 can only move relative to each other along a predetermined direction. This predetermined direction can be along the light emission direction of the first optical component 261, i.e., a direction perpendicular to the display surface of the first optical component 261. In the illustrated embodiment, the connector 266 is provided on the second base component 263, and a guide hole 267 is provided on the first optical component carrier 262. The connector 266 and the guide hole 267 cooperate with each other, and both extend along a first direction, which is perpendicular to the display surface of the first optical component 261. Of course, the guide hole can also be provided on the second base component 263, and the connector can be provided on the first optical component carrier 262.

[0097] The adjustment assembly 264 also includes an adjustable member 2641 and an elastic member 2642. The adjustable member 2641 passes through the first optical component carrier 262 and adjustably engages with the second base assembly 263. The elastic member 2642 rests between the first optical component carrier 262 and the second base assembly 263, constantly applying a spring force to the first optical component carrier 262 to move it away from the second base assembly 263. When the adjustable member 2641 is adjusted, the first optical component carrier 262 moves along the guide hole 267 under the action of the elastic member 2642, thereby adjusting the distance between the first optical component 261 and the second base assembly 263, and realizing the adjustment of the focus.

[0098] In this embodiment, the adjustable element 2641 is a bolt, and the elastic element 2642 is a spring sleeved on the bolt. A through hole 2621 is provided on the first optical component carrier 262, and a receiving hole 2631 is provided on the second base assembly 263. The lower part of the receiving hole 2631 is provided with an internal thread that mates with the adjustable element 2641, and the spring is received in the upper part of the receiving hole 2631.

[0099] The first optical component carrier 262 also includes a fixing part 2622 and a second connecting member 2623. The fixing part 2622 can be bent in a direction perpendicular to the display surface of the first optical component 261. A second adjustment groove 2624 extending along a first direction is provided on the fixing part 2622. After the second connecting member 2623 passes through the second adjustment groove 2624, it is fixed to the second base assembly 263 and presses the first optical component carrier 262 tightly. When the second connecting member 2623 is loosened and the distance between the first optical component 261 and the second base assembly 263 is adjusted, the second connecting member 2623 slides along the second adjustment groove 2624. After adjustment, the second connecting member is tightened to fix the first optical component carrier 262.

[0100] The second base assembly 263 is fixed to the body of the optical device via the first connector 265. The second base assembly 263 is provided with a first adjustment groove 2632 extending along a first direction. The first connector 265 is fixed to the body of the optical device via the first adjustment groove 2632 and presses the second base assembly 263 against it. When the first connector 265 is loosened, the position of the second base assembly 263 relative to the body can be adjusted along the first direction before being fixed again.

[0101] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An optical device, characterized in that, include: Base assembly for connecting the lens group of the prism module; First optical component; A first optical component carrier is connected to the base and is used to support the first optical component; as well as The adjustment component includes an adjustable member, an elastic member, and a connecting member. The adjustable member and the connecting member are movably connected to the base assembly after passing through the first optical component carrier. The elastic member abuts against the first optical component carrier and the base assembly. When the adjustable member is adjusted relative to the base assembly, it will adjust the elastic force of the elastic member between the first optical component carrier and the base assembly, and allow the first optical component carrier to move along the axial direction of the connecting member or rotate around the axial direction of the connecting member.

2. The optical device according to claim 1, characterized in that, The adjustable component is threadedly connected to the base assembly, and the elastic component is sleeved outside the adjustable component.

3. The optical device according to claim 1, characterized in that, The first optical component is used to reflect light to the prism module, or reflect light from the prism module, or emit light to the prism module; the first optical component carrier is provided with a hole, and the adjustable member passes through the hole on the first optical component carrier and is connected to the base assembly. The size of the hole is larger than the size of the corresponding part of the adjustable member that is accommodated therein. When the first optical component carrier rotates relative to the base assembly, the hole on the first optical component carrier provides space for the first optical component carrier to rotate relative to the adjustable member.

4. The optical device according to claim 1, characterized in that, The optical device further includes: PCB assembly, the PCB assembly including a shield and a PCB disposed therein; and A transmitter or receiver electrically connected to the PCB, wherein the transmitter is used to emit light to the first optical component, and the receiver is used to receive light reflected by the first optical component; The PCB assembly is disposed on the base assembly, and at least the PCB is capable of linear movement relative to the base assembly for adjustment.

5. The optical device according to any one of claims 1 to 4, characterized in that, The first optical component carrier includes: a first support portion for supporting the first optical component; a connector connected to the first support portion, the connector being a pivot rotatably connected to the base assembly; and an adjustment component connecting portion fixedly connected to at least one of the first support portion and the connector, the adjustment component passing through the adjustment component connecting portion and being adjustablely connected to the base assembly.

6. The optical device according to claim 5, characterized in that, The optical device further includes a limiting member, which is a bent pressure plate and includes a PCB assembly limiting part, a carrier limiting part, and an intermediate part connecting the two. The carrier limiting part is fixedly connected to the base assembly and presses against the connector of the first optical assembly carrier. The PCB assembly limiting part presses against the PCB assembly, so that the PCB assembly is limited in a second direction perpendicular to the first direction, but can be moved upward along the first direction and a third direction for adjustment under the action of external force. The first direction is parallel to the axis of the connector.

7. The optical device according to claim 6, characterized in that, The angle between the PCB assembly limiting part and the middle part is no greater than 90 degrees, and the second direction and the third direction are both perpendicular to the first direction.

8. The optical device according to any one of claims 1 to 4, characterized in that, The optical device further includes a carrier connection portion, which is fixed to the base assembly. The connector is provided on one of the carrier connection portion and the first optical component carrier, and a hole that mates with the connector is provided on the other of the carrier connection portion and the first optical component carrier; wherein the first direction is parallel to the axial direction of the connector.

9. The optical device according to claim 8, characterized in that, The first optical component carrier includes: Main body; A lug extending perpendicular to the first direction, the lug having a hole that mates with the connector, the lug being connected to a first side edge of the main body, and the lug being capable of linear movement along the connector in the first direction; and A first support portion for supporting the first optical component is connected to the second side edge of the main body portion, and a hole through which the adjustable member passes is located near the third side edge of the main body portion; The optical device further includes a lens module disposed between the first optical component and the prism module; The carrier connection portion includes: a first part fixed to the base assembly, the first part being L-shaped; a second part fixed at an angle to the first part, on which the connector is provided; and a third part, in which the lens module is sleeved within the third part and is capable of linear movement relative to the third part along the optical axis of the lens module, and a lens adjustment groove extending along the optical axis of the lens module is provided on the carrier connection portion, the lens module cooperating with the lens adjustment groove.

10. The optical device according to any one of claims 1 to 4, characterized in that, The base assembly is a second base assembly. The optical device also includes a first base assembly; The first optical component carrier is connected to the first base assembly via the second base assembly. The connector is provided on one of the second base assembly and the first optical component carrier, and a guide hole is provided on the other. The connector engages with the guide hole and both extend in a first direction; wherein the first direction is parallel to the axial direction of the connector.

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