CN111830698B - Optical device - Google Patents
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- CN111830698B CN111830698B CN201910312331.1A CN201910312331A CN111830698B CN 111830698 B CN111830698 B CN 111830698B CN 201910312331 A CN201910312331 A CN 201910312331A CN 111830698 B CN111830698 B CN 111830698B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
- G02B23/10—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator
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Abstract
The invention relates to an optical device comprising a reflection unit, an eyepiece unit and a light source. The reflection unit comprises a first lens and a second lens, wherein the first lens is a part of a first meniscus lens, the second lens is a part of a second meniscus lens, the first meniscus lens and the second meniscus lens are combined with each other to form a third meniscus lens, and the third meniscus lens has a first optical axis and a focus. The light source is arranged on the first optical axis and the focus and is positioned between the reflection unit and the eyepiece unit. The optical device satisfies the relation D1/D2 ≤ 4.5 ≤ 2.5, wherein D1 is a first distance between the light source and the reflection unit on the first optical axis, and D2 is a second distance between the light source and the eyepiece unit on the first optical axis.
Description
Technical Field
The present invention relates to an optical device, and more particularly, to an optical device having a point light source aiming system.
Background
The conventional sighting device usually includes an objective lens, a reflector, an eyepiece and a light source, wherein the objective lens and the eyepiece mainly function as a waterproof and dustproof lens, and the reflector not only reflects a light beam emitted from the light source to the eyes of a user, but also allows a light beam emitted from an object observed by the user to pass through. So configured, the user can observe the image of the object and a light spot generated by the light source through the collimator simultaneously, so as to aim the object by the light spot.
However, if the light beam received by the user (such as the light beam emitted by the light source or the light beam emitted by the object) is not a parallel light beam, when the user's eye moves away from the optical axis of the sighting device along a direction perpendicular to the optical axis of the sighting device, the image of the object or the light spot is easily distorted, thereby causing inaccuracy in the operation of the user.
Disclosure of Invention
The present invention is directed to an optical device, which has an optical design that helps to keep parallel a light beam reaching a user to avoid distortion of an image of an object or a light spot generated by a light source, and helps to reduce mechanical components to reduce the size and cost of the optical device.
The present invention provides an optical device, wherein one embodiment of the optical device includes a reflection unit, an eyepiece unit, and a light source. The reflection unit comprises a first lens and a second lens, wherein the first lens is a part of a first meniscus lens, the second lens is a part of a second meniscus lens, the first meniscus lens and the second meniscus lens are combined with each other to form a third meniscus lens, and the third meniscus lens has a first optical axis and a focus. The light source is arranged on the first optical axis and the focus and is positioned between the reflection unit and the eyepiece unit. The optical device satisfies the relation D1/D2 ≤ 4.5 ≤ 2.5, wherein D1 is a first distance between the light source and the reflection unit on the first optical axis, and D2 is a second distance between the light source and the eyepiece unit on the first optical axis.
In another embodiment, a reflective surface is disposed between the first lens and the second lens for selectively reflecting the light beam. The optical device further satisfies the relation D3/D2 ≤ 5.5 on the basis of 3.5 ≤ D3/D2 ≤ 5.5, wherein D3 is a third distance between the reflection unit and the eyepiece unit on the first optical axis, and D2 is a second distance between the light source and the eyepiece unit on the first optical axis.
In another embodiment, the first optical axis is located above or below the upper edge of the reflection unit and is separated from the upper edge of the reflection unit by a distance of approximately 5 millimeters (mm). The optical device further satisfies 1.20 ≦ D3/D1 ≦ 1.5, wherein D3 indicates a third distance between the reflection unit and the eyepiece unit on the first optical axis, and D1 indicates a first distance between the light source and the reflection unit on the first optical axis.
In another embodiment, the eyepiece unit and the reflection unit form a second optical axis, the reflection unit has a central axis, and the central axis passes through the light source and is inclined with respect to the second optical axis by an angle in a range of 10 to 16 degrees, the optical device further satisfies a conditional expression of 0.15 ≦ θ/D3 ≦ 0.30, where θ is the angle, and D3 is a third distance between the reflection unit and the eyepiece unit on the first optical axis.
In another embodiment, one surface of the reflection unit facing the object side has a positive refractive index, and the other surface of the reflection unit facing the image side has a negative refractive index.
In another embodiment, a mark is disposed on the upper edge of the reflection unit, and the reflection unit is positioned at a default position by the mark.
In another embodiment, the eyepiece unit and the reflection unit form a second optical axis, the light source is configured to emit a first light beam, the first light beam enters the reflection unit, is reflected by the reflection unit, and passes through the eyepiece unit along the second optical axis; after entering the optical device, a second light beam emitted by an object sequentially passes through the reflection unit and the eyepiece unit along the second optical axis.
In another embodiment, a reflective surface is disposed between the first lens and the second lens, and the first light beam incident on the reflective unit passes through the second lens, is reflected by the reflective surface, and sequentially passes through the second lens and the eyepiece unit along the second optical axis. The second light beam sequentially passes through the first lens, the reflecting surface, the second lens and the eyepiece unit.
In another embodiment, the optical device further includes a body, a pair of objective rings, a pair of eyepiece barrels, an inner barrel, a compensation device, and an elastic member. The body has a front end and a rear end. The object pressing ring is arranged at the front end part. The pair of eyepiece barrels is arranged at the rear end part and is used for bearing the eyepiece unit. The inner lens cone is arranged in the body, is positioned between the object pressing rings and the eyepiece sleeve, and is provided with a first end part and a second end part, wherein the reflection unit is arranged at the first end part, the light source is arranged at the second end part, and the first end part is fixed by the object pressing rings. The compensation device penetrates through the body, abuts against the second end part of the inner lens cone and is used for adjusting the inner lens cone relative to the body. The elastic element is arranged in the body and is abutted against the inner lens cone and is used for pushing the inner lens cone through the restoring force of the elastic element so as to keep the inner lens cone in contact with the compensation device.
In another embodiment, the optical device further includes a power supply unit and a control unit, wherein the power supply unit is disposed on the body and connected to the light source for supplying power, and the control unit is disposed on the body and connected to the light source for controlling the light source.
The optical device of the invention has the following beneficial effects: the optical design helps to keep the light beam reaching the user parallel, so as to avoid distortion of the image of the object or the light spot generated by the light source, and simultaneously helps to reduce the mechanism components, so as to reduce the volume and the cost of the optical device.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a targeting system for an optical device according to the present invention.
Fig. 2 is a front view of the reflection unit of fig. 1.
Fig. 3 is an optical path diagram of a light beam emitted by the light source of fig. 1.
Fig. 4 is an optical path diagram of the targeting system of fig. 1 receiving a light beam emitted by an object.
FIG. 5 is a schematic diagram of an embodiment of an optical device according to the present invention.
Detailed Description
Referring to fig. 1 and 5, fig. 5 shows an embodiment of an optical device 200 of the present invention, fig. 1 shows a targeting system 100 of the optical device 200, and the following describes the targeting system 100 first and then the optical device 200.
As shown in fig. 1, the aiming system 100 includes a reflection unit 11, an eyepiece unit 13, and a light source 15, wherein a user can simultaneously observe an image of an object 19 and a light spot (not shown) generated by the light source 15 through the eyepiece unit 13 of the aiming system 100 to aim the object 19 with the light spot. The arrangement of these components is described in detail below:
the reflection unit 11 is mainly composed of a first lens 111 and a second lens 113. It is noted that the first lens element 111 is a portion of the complete first meniscus lens element 1 (shown in phantom in fig. 1), and the second lens element 113 is a portion of the complete second meniscus lens element 3 (shown in phantom in fig. 1). Specifically, the concave surface of the first meniscus lens 1 and the convex surface of the second meniscus lens 3 are firstly adhered to each other to form a third meniscus lens, and the third meniscus lens is then cut to form the reflection unit 11. Thus, one surface of the reflection unit 11 facing the object side (i.e., the surface of the first lens element 111 facing the object side) has a positive refractive index, and the other surface of the reflection unit 11 facing the image side (i.e., the surface of the second lens element 113 facing the image side) has a negative refractive index. A reflective surface 115 is disposed between the first lens 111 and the second lens 113, and the reflective surface 115 is used for selectively reflecting the light beam (i.e. reflecting a part of the light beam and allowing another part of the light beam to pass through). In addition, a mark 117 is disposed on the upper edge of the reflection unit 11, and the mark 117 can be positioned at a default position in the aiming system 100.
Referring to fig. 2, if the reflection unit 11 is viewed from the side where the second lens 113 is located, it can be seen that the shape of the reflection unit 11 is circular (but the present invention is not limited thereto). As shown in fig. 1, the circular reflection unit 11 has a central axis C passing through a center thereof, the third meniscus lens (i.e., the bonded first meniscus lens 1 and the bonded second meniscus lens 3) has a first optical axis O, and the central axis C is inclined by an angle θ with respect to the first optical axis O, wherein the angle θ is in a range of 11 to 15 degrees in the preferred embodiment of the present invention, and a tolerance range understood by those skilled in the art is about ± 5%, i.e., the angle θ is in a range of 10.45 to 15.75 degrees. It should be noted that the light source 15 is disposed on the central axis C and the first optical axis O, at the focal point of the third meniscus lens, and between the reflection unit 11 and the eyepiece unit 13, and the reflection unit 11 and the eyepiece unit 13 form a second optical axis L.
After being engaged with the mechanism assembly (not shown), the reflection unit 11 and the ocular unit 13 can generate waterproof and dustproof functions as a first protection of the aiming system 100. Compared with the conventional collimator having the objective lens unit, the collimator system 100 of the present invention replaces the conventional objective lens unit with the reflection unit 11, and reduces the number of mechanical components of the corresponding objective lens unit. In addition, the aiming system 100 of the present invention has a significant reduction in both volume and cost due to the reduction in mechanical components.
The Light source 15 is a Laser Diode (LD) or a Light Emitting Diode (LED), the first meniscus lens 1 is a meniscus lens, the second meniscus lens 3 is a convex-concave lens, and the reflection unit 11 is a lens having a concave surface and a convex surface, and the concave surface and the convex surface have the same curvature.
In this embodiment, the first optical axis O is located below the upper edge of the reflection unit 11 and is separated from the upper edge of the reflection unit 11 by a distance T, and the distance T is approximately 5 millimeters (mm). In another embodiment, the optical axis (not shown) of the third meniscus lens is located above the upper edge of the reflecting unit 11 and is separated from the upper edge of the reflecting unit 11 by a distance of approximately 5 millimeters (mm).
Referring to fig. 3, in operation, the light source 15 emits a light beam a to the reflection unit 11. After entering the reflection unit 11, the light beam a passes through the second lens 113, is reflected by the reflection surface 115, and passes through the second lens 113 and the eyepiece unit 13 along the second optical axis L in sequence to be received by the eye 17 of the user. This light spot generated by the aforementioned light source 15 is observed when the user looks through the eyepiece unit 13. It is noted that, since the light source 15 is located on the first optical axis O and the focal point of the third meniscus lens, the light beam a reflected by the reflecting surface 115 and reaching the user's eye 17 is a parallel light beam. With this arrangement, when the user's eyes 17 move up and down in a direction perpendicular to the second optical axis L and away from the second optical axis L, the spot is not easily distorted. In other words, the parallax of the light spot approaches zero.
In addition to the light beam a emitted by the light source 15, the user receives a light beam B emitted by the object 19 when operating the targeting system 100. Referring to fig. 4, a light beam B emitted from the object 19 enters the aiming system 100 and passes through the first lens 111, the reflecting surface 115, the second lens 113 and the eyepiece unit 13 in sequence to be received by the eye 17 of the user. When the user observes through the eyepiece unit 13, an image of the object 19 can be observed. It is to be noted that, since the refractive power of the reflection unit 11 approaches zero, the light beam B reaching the eye 17 of the user through the reflection unit 11 and the eyepiece unit 13 is a parallel light beam. With this arrangement, when the user's eyes 17 move up and down in the direction perpendicular to the second optical axis L and leave the second optical axis L, the image of the object 19 is not distorted. In other words, the parallax of the image of the object 19 approaches zero.
The reflection focal length f of the reflection unit 11 of the present invention is about 43-53 mm (mm), and the preferred embodiment is 46-50 mm, which can be understood by those skilled in the art as a tolerance range of about ± 5%, i.e. the reflection focal length f is about 43.7-52.5 mm; wherein a first distance D1 between the light source 15 and the reflection unit 11 along the first optical axis O, a second distance D2 between the light source 15 and the eyepiece unit 13 along the first optical axis O, and a third distance D3 between the reflection unit 11 and the eyepiece unit 13 along the first optical axis O, wherein the third distance D3 is equal to the sum of the first distance D1 and the second distance D2, wherein the first distance D1 is preferably 45 mm, which is understood by those skilled in the art as a tolerance range of + -5%, i.e. the first distance D1 is about 42.75-47.25 mm, the second distance D2 is preferably 12 mm, which is understood by those skilled in the art as a tolerance range of + -5%, i.e. the second distance D2 is about 11.4-12.6 mm, the third distance D3 is preferably 12 mm, which is understood by those skilled in the art as a tolerance range of + -5%, that is, the third distance D3 is about 54.15-59.85 mm, wherein the ratio of the first distance D1, the second distance D2, the third distance D3 and the angle θ is shown in the following table, wherein when the following condition is satisfied by the present technology, i.e. represents a suitable position of the light source 15 with respect to the reflection unit 11 or the eyepiece unit 13, respectively, in particular when the position of the light source is in a suitable position, the light spot (not shown) generated by the light source 15 can be clearly seen without blurring, and the pitch of the reflection unit 11 or the eyepiece unit 13 also represents the miniaturization and compactness of the device of the present invention, the size of the angle is related to the distance between the light source and the reflection unit 11, so that any condition that the present invention satisfies represents that the light source, the reflection unit 11 or the eyepiece unit 13 of the present invention is in a proper position.
The reflection unit 11 of the aiming system 100 of the present invention can replace the objective lens unit of the conventional aiming device, and can keep the light beam a emitted by the light source 15 parallel to the light beam B emitted by the object 19, so as to avoid distortion of the light spot generated by the light source 15 and the image of the object 19. Therefore, the imaging quality of the aiming system 100 is improved, and the volume and cost thereof are reduced.
Referring to fig. 5, which shows an optical device 200 of the present invention, in addition to the above-mentioned aiming system 100, the optical device 200 further includes an outer barrel 54, an inner barrel 53, at least a compensation device 67, an elastic member 65, a power supply unit 59 and a control unit 57, and the outer barrel 54 includes a pair of object compression rings 55, a body 51 and an eyepiece barrel 63.
Specifically, the main body 51 has a front end portion to which the objective ring 55 is provided for fixing the inner barrel 53, and a rear end portion to which the eyepiece barrel 63 is screwed for receiving the eyepiece unit 13. The inner barrel 53 is disposed in the body 51, located between the object-matching ring 55 and the eyepiece unit 13 (or the eyepiece barrel 63), and is used for carrying the reflection unit 11 and the light source 15. It should be noted that the reflection unit 11 is disposed at a first end of the inner barrel 53, and the light source 15 is disposed at a second end of the inner barrel 53, the first end being opposite to the second end, and the object pressing ring 55 is fixed in the main body 51. A compensating device 67 passes through the body 51, abuts against the second end of the inner barrel 53, and is used for adjusting the inner barrel 53 relative to the body 51, wherein the compensating device has an adjusting range relative to the inner barrel 53
About 1 degree, and a tolerance range of about + -5%, as would be understood by one of ordinary skill in the art, i.e., the adjustment range
About 0.95 to about 1.05 degrees. The elastic member 65 is disposed in the body 51, abuts against the inner barrel 53, and is used to push the inner barrel 53 through the restoring force thereof, so that the inner barrel 53 keeps in contact with the compensating device 67. The power supply unit 59 is disposed on the body 51 and connected to the light source 15 to supply power. The control unit 57 is disposed on the body 51 and connected to the light source 15 to control the light source 15 (e.g., turn on, turn off, or change brightness).
The power supply unit 59 includes a battery cover 75, a battery 71, a circuit board 73 and a base 81, the base 81 is disposed on the body 51, the battery 71 and the circuit board 73 are disposed on the base 81, and the battery cover 75 is used for covering the battery 71, the circuit board 73 and the base 81. The control unit 57 comprises a circuit board 85 and two keys 83, the circuit board 85 is connected to the light source 15, and the keys 83 are connected to the circuit board 85, so that a user can control the light source 15 by operating the keys 83. The compensation device 67 may be a height compensation device disposed generally above the body 51 or a windage compensation device disposed generally to the left or right of the body 51. The arrangement and operation of the remaining components are similar to those of the previous embodiments and are not described herein.
Claims (19)
1. An optical device, comprising:
a reflection unit including a first lens and a second lens, wherein the first lens is a part of a first meniscus lens, the second lens is a part of a second meniscus lens, the first meniscus lens and the second meniscus lens are combined with each other to form a third meniscus lens, and the third meniscus lens has a first optical axis and a focus; a reflecting surface is arranged between the first lens and the second lens and used for selectively reflecting light beams;
an eyepiece unit; and
the light source is arranged on the first optical axis and the focus and is positioned between the reflecting unit and the ocular unit;
wherein, a condition is further satisfied:
2.5≤D1/D2≤4.5
wherein D1 indicates a first distance between the light source and the reflection unit on the first optical axis, and D2 indicates a second distance between the light source and the eyepiece unit on the first optical axis.
2. The optical device of claim 1, further satisfying a condition:
3.5≤D3/D2≤5.5
wherein D3 indicates a third distance between the reflection unit and the eyepiece unit on the first optical axis, and D2 indicates a second distance between the light source and the eyepiece unit on the first optical axis.
3. The optical device of claim 1, wherein the first optical axis is located above or below an upper edge of the reflective unit and spaced apart from the upper edge of the reflective unit by a distance of approximately 5 mm; wherein, a condition is further satisfied:
1.20≤D3/D1≤1.50
wherein D3 indicates the third distance between the reflection unit and the eyepiece unit on the first optical axis, and D1 indicates the first distance between the light source and the reflection unit on the first optical axis.
4. The optical device of claim 1, wherein the eyepiece unit and the reflection unit form a second optical axis, the reflection unit has a central axis, and the central axis passes through the light source and is tilted with respect to the second optical axis by an angle in a range of 10-16 degrees, wherein a condition of 0.15 ≦ θ/D3 ≦ 0.30 is further satisfied
Where θ denotes the angle, and D3 denotes a third distance between the reflection unit and the eyepiece unit on the first optical axis.
5. The optical device as claimed in claim 1, wherein one side of the reflection unit facing the object side has a positive refractive index, and the other side of the reflection unit facing the image side has a negative refractive index.
6. The optical device as claimed in claim 1, wherein the upper edge of the reflection unit is provided with a mark, and is positioned at a default position by the mark.
7. The optical device of claim 1, wherein the eyepiece unit and the reflection unit form a second optical axis, the light source is configured to emit a first light beam, the first light beam is incident on the reflection unit, reflected by the reflection unit, and passes through the eyepiece unit along the second optical axis; after entering the optical device, a second light beam emitted by an object sequentially passes through the reflection unit and the eyepiece unit along the second optical axis.
8. The optical device according to claim 7, wherein a reflective surface is disposed between the first lens and the second lens, the first light beam incident on the reflective unit passes through the second lens, is reflected by the reflective surface, and sequentially passes through the second lens and the eyepiece unit along the second optical axis;
the second light beam sequentially passes through the first lens, the reflecting surface, the second lens and the eyepiece unit.
9. The optical device of claim 1, further comprising:
a body having a front end and a rear end;
a pair of object compression rings arranged at the front end part;
an eyepiece barrel disposed at the rear end portion and used for carrying the eyepiece unit;
the inner lens cone is arranged in the body, is positioned between the object compression rings and the eyepiece cone and is provided with a first end part and a second end part, wherein the reflecting unit is arranged at the first end part, the light source is arranged at the second end part, and the first end part is fixed by the object compression rings;
the compensating device penetrates through the body, abuts against the second end part of the inner lens cone and is used for adjusting the inner lens cone relative to the body; and
the elastic piece is arranged in the body, is abutted against the inner lens cone and is used for pushing the inner lens cone through the restoring force of the elastic piece so as to ensure that the inner lens cone keeps contact with the compensating device.
10. The optical apparatus of claim 9, further comprising a power supply unit and a control unit, wherein the power supply unit is disposed on the body and connected to the light source for supplying power, and the control unit is disposed on the body and connected to the light source for controlling the light source.
11. An optical device, comprising:
a reflection unit including a first lens and a second lens, wherein the first lens is a part of a first meniscus lens, the second lens is a part of a second meniscus lens, the first meniscus lens and the second meniscus lens are combined with each other to form a third meniscus lens, and the third meniscus lens has a first optical axis and a focus; a reflecting surface is arranged between the first lens and the second lens and used for selectively reflecting light beams;
a mark is arranged on the upper edge of the reflection unit and is positioned at a default position by the mark;
an eyepiece unit; and
the light source is arranged on the first optical axis and the focus and is positioned between the reflecting unit and the ocular unit;
wherein, a condition is further satisfied:
2.5≤D1/D2≤4.5
wherein D1 indicates a first distance between the light source and the reflection unit on the first optical axis, and D2 indicates a second distance between the light source and the eyepiece unit on the first optical axis.
12. The optical device of claim 11, further satisfying a condition:
3.5≤D3/D2≤5.5
wherein D3 indicates a third distance between the reflection unit and the eyepiece unit on the first optical axis, and D2 indicates a second distance between the light source and the eyepiece unit on the first optical axis.
13. The optical device according to claim 11, wherein the first optical axis is located above or below the upper edge of the reflecting unit and is spaced from the upper edge of the reflecting unit by a distance of approximately 5 mm; wherein, a condition is further satisfied:
1.20≤D3/D1≤1.50
wherein D3 indicates the third distance between the reflection unit and the eyepiece unit on the first optical axis, and D1 indicates the first distance between the light source and the reflection unit on the first optical axis.
14. The optical device of claim 11, wherein the eyepiece unit and the reflection unit form a second optical axis, the reflection unit has a central axis, and the central axis passes through the light source and is tilted with respect to the second optical axis by an angle in a range of 10-16 degrees, wherein a condition of 0.15 ≦ θ/D3 ≦ 0.30 is further satisfied
Where θ denotes the angle, and D3 denotes a third distance between the reflection unit and the eyepiece unit on the first optical axis.
15. The optical device as claimed in claim 11, wherein one side of the reflection unit facing the object side has a positive refractive index, and the other side of the reflection unit facing the image side has a negative refractive index.
16. The optical device of claim 11, wherein the eyepiece unit and the reflection unit form a second optical axis, the light source is configured to emit a first light beam, the first light beam is incident on the reflection unit, reflected by the reflection unit, and passes through the eyepiece unit along the second optical axis; after entering the optical device, a second light beam emitted by an object sequentially passes through the reflection unit and the eyepiece unit along the second optical axis.
17. The optical device according to claim 16, wherein a reflective surface is disposed between the first lens and the second lens, the first light beam incident on the reflective unit passes through the second lens, is reflected by the reflective surface, and sequentially passes through the second lens and the eyepiece unit along the second optical axis;
the second light beam sequentially passes through the first lens, the reflecting surface, the second lens and the eyepiece unit.
18. The optical device of claim 11, further comprising:
a body having a front end and a rear end;
a pair of object compression rings arranged at the front end part;
an eyepiece barrel arranged at the rear end part and used for bearing the eyepiece unit;
the inner lens cone is arranged in the body, is positioned between the object compression rings and the eyepiece cone and is provided with a first end part and a second end part, wherein the reflecting unit is arranged at the first end part, the light source is arranged at the second end part, and the first end part is fixed by the object compression rings;
the compensating device penetrates through the body, abuts against the second end part of the inner lens cone and is used for adjusting the inner lens cone relative to the body; and
the elastic piece is arranged in the body, is abutted against the inner lens cone and is used for pushing the inner lens cone through the restoring force of the elastic piece so as to ensure that the inner lens cone keeps contact with the compensating device.
19. The optical apparatus of claim 18, further comprising a power supply unit and a control unit, wherein the power supply unit is disposed on the body and connected to the light source for supplying power, and the control unit is disposed on the body and connected to the light source for controlling the light source.
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| CN201910312331.1A CN111830698B (en) | 2019-04-18 | 2019-04-18 | Optical device |
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| CN201910312331.1A CN111830698B (en) | 2019-04-18 | 2019-04-18 | Optical device |
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