A target simulation device for out-of-field optical device alignment

Abstract

The utility model belongs to optical equipment adjusting and testing technical field discloses a target simulation device for field optical equipment alignment, it includes: fixed subassembly, zoom lens, zoom lens includes lens shell and coaxial arrangement's point light source, primary mirror, secondary mirror, the central inner chamber and the annular chamber that surrounds in the central inner chamber outside are set up on fixed subassembly, the lens shell is through the threaded connection cover and is arranged in fixed subassembly front end outside, the point light source is installed in the central inner chamber bottom center of fixed subassembly, the primary mirror is installed in the annular chamber bottom of fixed subassembly, the secondary mirror is installed in the lens shell, the light of point light source is reflected to primary mirror after passing through secondary mirror, and the light is changed into parallel light after reflecting to primary mirror and emits. The utility model target simulation device is not influenced by the environment of optical equipment alignment site, reduces the time of finding and aiming at target, reduces the error of calibration by target distance near, can fast, accurate target is provided for optical equipment.

Description

Technical Field

[0001] This utility model belongs to the field of optical assembly and testing technology, and relates to a target simulation device for calibrating the axis of field optical equipment. Background Technology

[0002] Some optical equipment, such as optoelectronic pods, panoramic sights, sighting devices, or television goniometers, require optical axis calibration before use when conducting field tests.

[0003] When calibrating the optical axis of optical equipment in the field, a typical target is usually found within the line of sight, and the optical equipment is then aimed at the target for calibration. However, when a typical target cannot be found in the field due to factors such as visibility or illuminance, the difficulty of field optical calibration is increased.

[0004] Currently, optical axis calibration mostly uses large-aperture collimator equipment, which generates a parallel beam by placing the target light source on the focal plane of an off-axis parabolic mirror. However, large-aperture parabolic mirrors are difficult to manufacture, costly, difficult to install and adjust, and inconvenient to carry, making them particularly unsuitable for field use. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] The purpose of this invention is to provide a target simulation device that can replace large-diameter collimators, is easy to carry, and can be used for calibrating the axis of outdoor optical equipment under all-day outdoor conditions.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides a target simulation device for calibrating the axis of an outdoor optical device, which includes: a fixed component 2 and a zoom lens 3. The zoom lens 3 includes a lens housing and a point light source 9, a primary mirror 10, and a secondary mirror 11 arranged coaxially. The fixed component 2 has a central inner cavity and an annular cavity surrounding the central inner cavity. The lens housing is threaded onto the front end of the fixed component 2. The point light source 9 is installed at the bottom center of the central inner cavity of the fixed component 2. The primary mirror 10 is installed at the bottom of the annular cavity of the fixed component 2. The secondary mirror 11 is installed inside the lens housing. The light emitted by the point light source 9 is reflected by the secondary mirror 11 to the primary mirror 10. After being reflected by the primary mirror 10, the light becomes parallel light and is emitted.

[0009] Furthermore, a battery assembly 5 is provided at the bottom of the fixing component 2 to power the point light source 9.

[0010] Furthermore, a panel 1 is provided at the rear end of the fixed component 2, and a Type-C charging port 7 and a button switch 8 are provided on the panel 1; the Type-C charging port 7 is connected to the battery component 5, and an external power source is used to charge the battery component 5; the button switch 8 is connected to the battery component 5 and controls the battery component 5 to supply power to the point light source 9.

[0011] Furthermore, a dovetail mount 6 is provided at the bottom of the battery assembly 5 for fixing the fixing assembly 2 and the zoom lens 3 to the support device.

[0012] Furthermore, a protective cover 4 is provided at the front end of the lens housing of the zoom lens 3.

[0013] Furthermore, the secondary mirror 11 is mounted inside the lens housing by an annular frame, and its center is located on the axis of the fixed assembly 2 and the zoom lens 3, along with the point light source.

[0014] Furthermore, the annular frame is made of transparent glass.

[0015] Furthermore, the primary mirror 10 is a concave parabolic reflector, and the secondary mirror 11 is a convex hyperboloid reflector.

[0016] Furthermore, the center of the primary mirror 10, the center of the secondary mirror 11, and the point light source 9 are located on the same axis, and the point light source 9 is located at the focal plane of the optical system of the target simulation device.

[0017] (III) Beneficial Effects

[0018] The target simulation device for calibrating the optical axis of field optical equipment provided by the above technical solution has the advantages of simple structure, light weight, small size, easy portability, simple operation, and no need for additional power supply. The light-emitting device uses a battery to excite a specific spectral point light source, which emits a stable parallel light source through a collimator. The collimator is mounted on a tripod by a quick-release structure. By adjusting the height of the tripod and the angle of the collimator, the optical equipment is aligned with the light-transmitting aperture of the optical equipment. The optical equipment aims at the light source inside the collimator to achieve the purpose of optical axis calibration. The target simulation device is not affected by the environment of the optical equipment calibration site, reduces the time for finding and aiming at the target, reduces calibration errors caused by the short distance of the target, and can quickly and accurately provide a target for the optical equipment. Attached Figure Description

[0019] Figure 1 This is a front view of the target simulation device in an embodiment of this utility model.

[0020] Figure 2 This is a top view of the target simulation device in an embodiment of this utility model.

[0021] Figure 3 This is a front view of the target simulation device in an embodiment of this utility model.

[0022] Figure 4 This is a three-dimensional schematic diagram of the target simulation device in an embodiment of this utility model.

[0023] Figure 5 This is a schematic diagram of the optical path of the target simulation device in an embodiment of this utility model.

[0024] Figure 6 This is a cross-sectional view of the target simulation device in an embodiment of this utility model.

[0025] Figure 7 This is a perspective view of the target simulation device (excluding the lens cap) according to an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the target simulation device used on a tripod in an embodiment of this utility model. Detailed Implementation

[0027] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0028] Reference Figures 1 to 8 As shown, the target simulation device for calibrating the axis of an outdoor optical device in this embodiment includes a fixed assembly 2 and a zoom lens 3. The zoom lens 3 includes a lens housing and a point light source 9, a primary mirror 10, and a secondary mirror 11 arranged coaxially. The fixed assembly 2 has a central inner cavity and an annular cavity surrounding the central inner cavity. The lens housing is threaded onto the front end of the fixed assembly 2. The point light source 9 is installed at the bottom center of the central inner cavity of the fixed assembly 2. The primary mirror 10 is installed at the bottom of the annular cavity of the fixed assembly 2. The secondary mirror 11 is installed inside the lens housing. The light emitted by the point light source 9 is reflected by the secondary mirror 11 to the primary mirror 10. After being reflected by the primary mirror 10, the light becomes parallel light and is emitted.

[0029] A battery assembly 5 is installed at the bottom of the fixed component 2 to power the point light source 9.

[0030] The rear end of the fixed component 2 is equipped with a panel 1, on which a Type-C charging port 7 and a button switch 8 are provided; the Type-C charging port 7 is connected to the battery component 5, and an external power source is used to charge the battery component 5; the button switch 8 is connected to the battery component 5 and controls the battery component 5 to supply power to the point light source 9.

[0031] A dovetail mount 6 is provided at the bottom of the battery assembly 5 to fix the fixing assembly 2 and the zoom lens 3 to the support device.

[0032] A protective cover 4 is provided at the front end of the lens housing of zoom lens 3.

[0033] The secondary lens 11 is mounted inside the lens housing by a ring frame, and its center is located on the axis of the fixed assembly 2 and the zoom lens 3, along with the point light source.

[0034] The ring frame is made of transparent glass.

[0035] The primary mirror 10 is a concave parabolic reflector, and the secondary mirror 11 is a convex hyperboloid reflector. The center of the primary mirror 10, the center of the secondary mirror 11, and the point light source 9 are located on the same axis, and the point light source 9 is located at the focal plane of the optical system of the target simulation device.

[0036] The principle of the target simulation device in this embodiment is as follows: the point light source 9 is powered by the battery assembly 5 and emits light with stable brightness and constant spectrum. The light emitted by the point light source 9 is reflected by the hyperbolic convex secondary mirror 11 to the primary mirror 10. After being reflected by the primary mirror 10, the light becomes parallel light, and the light emitted through the lens port is parallel light.

[0037] Due to the inherent assembly and adjustment errors in the optical system, the target simulation device is designed with an adjustable focal length. If the light source target remains unfocused after aligning the vertical line of the focal plane with the vertical line between the positive and negative lines, the positions of the "focus +" and "focus -" points of the focal plane can be adjusted appropriately until the light source is brightest and clearest.

[0038] In this embodiment, when the target simulation device is used for optical axis calibration in an outdoor field, the battery assembly 5 excites the light source to emit a set spectrum point light source 9, which emits a stable parallel light source through a collimator. The collimator is mounted on a tripod by a dovetail mount 6. By adjusting the height of the tripod and the angle of the collimator to align with the light transmission aperture of the optical equipment, the optical equipment aims at the light source inside the collimator to achieve the purpose of optical axis calibration.

[0039] The operation procedure for optical equipment alignment using the target simulation device in this embodiment is as follows:

[0040] 1. Align the focal plane of the target simulation device. Align the vertical line of the focal plane with the vertical line between the positive and negative lines, such as... Figure 2 As shown.

[0041] 2. Connect the target simulation device components to the tripod, such as... Figure 8 As shown, place it in front of the optical equipment that needs to be aligned, and adjust the height of the tripod and the angle of its platform so that the aperture of the target simulation device is contained in the position of two or more optical paths of the optical equipment.

[0042] 4. Remove the lens cap from the target simulation device and turn on the power switch.

[0043] 5. Precisely adjust the angle of the target simulation device to align the first optical axis of the optical equipment with the light source target.

[0044] 6. Keeping the target simulation device in its current position, operate the optical equipment and, through its own structure or software, adjust the second optical axis to align with the light source target. Similarly, multiple optical axes of the optical equipment can be adjusted to align with the light source target.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A target simulation device for aligning the axis of an outdoor optical device, characterized in that, Includes: a fixed assembly (2) and a zoom lens (3). The zoom lens (3) includes a lens housing and a point light source (9), a primary lens (10), and a secondary lens (11) arranged coaxially. The fixed assembly (2) has a central inner cavity and an annular cavity surrounding the central inner cavity. The lens housing is threaded onto the front end of the fixed assembly (2). The point light source (9) is installed at the bottom center of the central inner cavity of the fixed assembly (2). The primary lens (10) is installed at the bottom of the annular cavity of the fixed assembly (2). The secondary lens (11) is installed inside the lens housing. The light emitted by the point light source (9) is reflected by the secondary lens (11) to the primary lens (10). The light is reflected by the primary lens (10) and becomes parallel light before being emitted.

2. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 1, characterized in that, The fixed component (2) has a battery component (5) at its bottom to power the point light source (9).

3. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 2, characterized in that, The fixed component (2) has a panel (1) at its rear end. The panel (1) has a Type-C charging port (7) and a button switch (8). The Type-C charging port (7) is connected to the battery component (5) and an external power source is used to charge the battery component (5). The button switch (8) is connected to the battery component (5) and controls the battery component (5) to supply power to the point light source (9).

4. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 3, characterized in that, The bottom of the battery assembly (5) is provided with a dovetail mount (6) for fixing the fixing assembly (2) and the zoom lens (3) to the support device.

5. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 4, characterized in that, The zoom lens (3) has a protective cover (4) at the front end of its lens housing.

6. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 5, characterized in that, The secondary lens (11) is mounted inside the lens housing by a ring frame, and its center is located on the axis of the fixed assembly (2) and the zoom lens (3) along with the point light source.

7. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 6, characterized in that, The ring frame is made of transparent glass.

8. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 7, characterized in that, The primary mirror (10) is a concave parabolic reflector, and the secondary mirror (11) is a convex hyperboloid reflector.

9. The target simulation device for aligning the optical equipment in an outdoor field as described in claim 8, characterized in that, The center of the primary mirror (10), the center of the secondary mirror (11), and the point light source (9) are located on the same axis, and the point light source (9) is located at the focal plane of the optical system of the target simulation device.

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