Red and green double-color sighting telescope based on super lens

Abstract

The invention discloses a red-green sighting telescope based on a super lens. The red-green sighting telescope comprises a telescope body, the super lens and a red-green light source, wherein the super lens and the red-green light source are arranged in the telescope body; the red-green double-color light source emits red or green division patterns to the super lens according to setting, and the super lens converts the division patterns into parallel light entering human eyes. According to the sighting telescope, free switching of red and green double-color division is achieved, and the requirement for conversion of division colors in different scenes can be met.

Description

Technical Field

[0001] The present invention relates to the field of aiming technology, and in particular to a red and green two-color sight based on a super lens. Background Art

[0002] Traditional red dot sights use a light source plus a reticle style, and the optical system uses ordinary glass as a beam splitter. Ordinary glass will have high parallax and aberration problems due to uneven thickness; affected by material dispersion, its focusing effect on red and green light and the reflection effect of high-transmittance and high-reflection film are different. In addition, since the optical path has strict requirements on the installation of lamp beads, the lamp beads must be at the focus of the optical axis to achieve parallel light emission. Therefore, existing sights cannot use the same set of optical paths to achieve efficient focusing and reflection of red and green light, and thus cannot achieve arbitrary switching of red and green reticle, and cannot adapt to complex aiming environment requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a red-green two-color sight based on a metalens, so as to realize the switching of red and green scales on the same sight to meet the aiming requirements of different scenarios.

[0004] In order to solve the above technical problems, the present invention provides a red-green two-color sight based on a metalens, comprising a mirror body, a metalens and a red-green two-color light source arranged in the mirror body; the red-green two-color light source emits a red or green divided pattern to the metalens according to the setting, and the metalens converts the divided pattern into parallel light that enters the human eye.

[0005] According to the above scheme, the angle between the super lens and the bottom surface of the mirror body is 63~73°.

[0006] According to the above scheme, the focal length of the superlens is ≤15mm, the focal length is ≥1mm, the wavelength offset is ≤20nm, and the off-axis angle is ≥10°.

[0007] According to the above scheme, the superlens has a planar structure and the thickness of the superlens is ≤500 μm.

[0008] According to the above solution, the red and green dual-color light source includes a red light source and a green light source respectively arranged on both sides of the optical axis.

[0009] According to the above scheme, control buttons are included; the control buttons adjust the color, brightness, size and style of the division pattern.

[0010] According to the above scheme, the styles of the dividing patterns include dots, circles, and crosses.

[0011] According to the above scheme, a protective mirror is included, and the protective mirror is arranged between the red and green dual-color light source and the super lens.

[0012] According to the above solution, a bracket is included, which is connected to the bottom of the mirror body and is used to connect the mirror body with other devices.

[0013] According to the above solution, a light source adjustment mechanism is included, which is transmission-connected to the red and green dual-color light source and is used to adjust the horizontal and vertical positions of the red and green dual-color light source in the mirror body.

[0014] Beneficial effects By adopting a superlens, the present invention can effectively reduce parallax and aberration, and can simultaneously convert red and green point light sources that deviate from the optical axis into parallel light, thereby realizing parallel control of red and green dual optical paths and precise, fast and stable non-mechanical two-color switching, thereby meeting the use requirements of different grating colors.

[0015] Furthermore, the present invention can adjust the horizontal and vertical positions of the red and green light sources in the mirror body by providing a light source adjustment mechanism, thereby achieving rapid adjustment of the position of the graticule pattern. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance of a red and green dual-color sight based on a metalens according to an embodiment of the present invention; Figure 2 A first exploded view of a red-green dual-color sight based on a metalens according to an embodiment of the present invention; Figure 3 A second exploded view of a red-green dual-color sight based on a metalens according to an embodiment of the present invention; Figure 4 A third exploded view of a red-green dual-color sight based on a metalens according to an embodiment of the present invention; Figure 5 An exploded view of a power supply assembly according to an embodiment of the present invention; Figure 6 A side cross-sectional view of a red-green dual-color sight based on a metalens according to an embodiment of the present invention; Figure 7 This is an electrical framework diagram of a red-green dual-color sight based on a metalens according to an embodiment of the present invention; Figure 8 This is a circuit diagram of a red-green dual-color sight based on a superlens according to an embodiment of the present invention.

[0017] In the figure: 1-mirror body, 2-super lens, 3-protective mirror, 4-longitudinal adjustment screw, 5-lateral adjustment screw, 6-longitudinal adjustment slider, 7-first lateral adjustment slider, 8-second lateral adjustment slider, 9-light source holder, 10-pressing ring, 11-key cover, 12-first spring, 13-second spring, 14-electrode sheet, 15-bracket, 16-negative electrode sheet, 17-key board, 19-battery, 19-red and green dual-color light source, 20-power board, 21-screw sealing ring, 22-bracket fixing screw, 23-retaining ring, 24-steel ball. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0019] See also Figures 1 to 6 This embodiment provides a red-green dual-color sight based on a metalens 2, comprising a mirror body 1, a metalens 2 disposed in the mirror body 1, and a red-green dual-color light source 19; the red-green dual-color light source 19 emits a red or green graticule pattern toward the metalens 2 according to the setting (the light generated by the light source is perpendicular to the metalens 2), and the metalens 2 converts the graticule pattern into parallel light that enters the human eye.

[0020] Furthermore, the angle between the superlens 2 and the bottom surface of the mirror body 1 is 63~73°; in a preferred embodiment of the present invention, the angle between the superlens 2 and the bottom surface of the mirror body 1 is 68°, and the superlens 2 is fixed to the mirror body 1 by silicone and a pressure ring 10, and has a certain impact resistance; the superlens 2 can simultaneously convert red and green point light sources that deviate from the optical axis into parallel light, breaking the limitation of traditional spectroscopes on the position of the light source, thereby realizing parallel control of red and green dual light paths and precise, fast and stable non-mechanical two-color switching.

[0021] Furthermore, the focal length of the metalens 2 is ≤15 mm, the focal length is ≥1 mm, the wavelength offset is ≤20 nm, and the off-axis angle is ≥10°; the metalens 2 can achieve large-angle light deflection and off-axis focusing that traditional optical lenses cannot achieve. The short focal length, ultra-thinness, and light weight of the metalens 2 can reduce the volume and weight of the sight.

[0022] Furthermore, the superlens 2 has a planar structure, and the thickness of the superlens 2 is ≤500μm; the superlens 2 solves the high parallax and aberration problems caused by the uneven thickness of traditional lenses; the ultra-thin and uniform thickness can not only reduce the weight of the device, but also reduce the difficulty of assembly and gluing, so that it can better withstand harsh environments and avoid falling off.

[0023] Furthermore, the metalens 2 uses diamond as a substrate, and thus has the characteristics of high temperature resistance, wear resistance, scratch resistance, and anti-fog, which improves the overall reliability of the red and green two-color sight.

[0024] Furthermore, the red and green dual-color light source 19 includes a red light source and a green light source respectively arranged on both sides of the optical axis; in this embodiment, both the red light source and the green light source are LEDs.

[0025] According to the above scheme, a control button is included; the control button adjusts the color, brightness, size and style of the reticle pattern; in this embodiment, the red and green two-color sight includes a control circuit for adjusting the reticle pattern, and the control button and the red and green two-color light source 19 are electrically connected to the control circuit respectively; the control button is located in the square groove on the front side of the mirror body 1, and includes a button cover 11 and a button plate 17. A threading hole is provided in the square groove for the button plate 17 to thread the circuit.

[0026] Furthermore, the styles of the graticule pattern include dots, circles, and crosses.

[0027] Furthermore, a protective mirror 3 is included, which is arranged between the red and green dual-color light source 19 and the super lens 2.

[0028] Furthermore, the protective mirror 3 is made of H-K9L glass substrate, which has good transmittance.

[0029] Furthermore, it includes a bracket 15, which is connected to the bottom of the mirror body 1 and is used to connect the mirror body 1 with other devices; in this embodiment, the bracket 15 is fixed to the mirror body 1 by two bracket fixing screws 22, and a sealing ring is provided between the mirror body 1 and the bracket 15, and the sealing ring is used to seal the internal structure of the mirror body 1.

[0030] Furthermore, it includes a light source adjustment mechanism, which is transmission-connected to the red and green dual-color light source 19 and is used to adjust the horizontal and vertical positions of the red and green dual-color light source 19 in the mirror body 1.

[0031] Furthermore, the light source adjustment mechanism includes a light source seat 9, a transverse adjustment mechanism and a longitudinal adjustment mechanism; The red and green dual-color light source 19 is fixed on the light source base 9 . The light source base 9 is provided with a transverse long strip hole. Both sides of the light source base 9 are provided with V-shaped protrusions.

[0032] The longitudinal adjustment mechanism includes a longitudinal adjustment screw 4, a longitudinal adjustment slider 6, and a first spring 12. The longitudinal adjustment screw 4 is axially limited and mounted in the mirror body 1 and can rotate in the mirror body 1. The longitudinal adjustment screw 4 is threadedly connected to the longitudinal adjustment slider 6. The side of the longitudinal adjustment slider 6 is provided with a protrusion that is inserted into the elongated hole of the light source seat 9. The bottom of the longitudinal adjustment slider 6 is provided with a first spring 12. When the longitudinal position of the red and green two-color light source 19 needs to be adjusted, the longitudinal adjustment screw 4 is rotated. The rotation of the longitudinal adjustment screw 4 drives the longitudinal adjustment slider 6 to move in the longitudinal direction, thereby causing the red and green two-color light source 19 to move in the longitudinal direction. The first spring 12 provides elastic force during the longitudinal adjustment process, eliminates gaps, and optimizes the adjustment feel. The lateral adjustment mechanism includes a lateral adjustment screw 5, a first lateral adjustment slider 7, a first lateral adjustment slider 8, and a first spring 12; the lateral adjustment screw 5 is axially limited and installed in the mirror body 1 and can rotate in the mirror body 1, and the lateral adjustment screw 5 is threadedly connected to the first lateral adjustment slider 7; the lateral adjustment screw 5 and the first lateral adjustment slider 7, the first lateral adjustment slider 7 and the first lateral adjustment slider 8 are respectively located on both sides of the light source seat 9, and the inner sides of the first lateral adjustment slider 7 and the first lateral adjustment slider 8 are both provided with V-shaped grooves that match the V-shaped protrusions on the side of the light source seat 9, and a first spring 12 is provided at the bottom of the first lateral adjustment slider 8; when the lateral position of the red and green dual-color light source 19 needs to be adjusted, the lateral adjustment screw 5 is rotated, and the rotation of the lateral adjustment screw 5 drives the first lateral adjustment slider 7 to move laterally, thereby causing the red and green dual-color light source 19 to move laterally together with the first lateral adjustment slider 8; the first spring 12 provides elastic force during the lateral adjustment process, eliminates gaps, and optimizes the adjustment feel.

[0033] Furthermore, the longitudinal adjustment screw 4 and the transverse adjustment screw 5 are both axially fixed in the mirror body 1 by a retaining ring 23 sleeved between the screw head and the threaded end.

[0034] Furthermore, screw sealing rings 21 are provided between the screw heads of the longitudinal adjustment screw 4 and the transverse adjustment screw 5 and the mirror body 1 .

[0035] Furthermore, the screw heads of the longitudinal adjustment screw 4 and the transverse adjustment screw 5 are both provided with evenly distributed V-shaped teeth on the side, and a blind hole is provided on the side of the countersunk hole of the mirror body 1 that contacts the V-shaped teeth. A second spring 12 and a steel ball 24 are provided in the blind hole. The second spring 12 presses the steel ball 24 toward the V-shaped teeth, so that the longitudinal adjustment screw 4 or the transverse adjustment screw 5 has a gear segment sense when rotating and adjusting; in this embodiment, adjusting one gear is 1.5MOA, taking into account both processability and adjustment accuracy.

[0036] Furthermore, a power supply assembly is provided in the mirror body 1, and the power supply assembly includes a power board 20, an electrode sheet 14, and a negative electrode sheet 16; the positive electrode is located above the power board 20, the electrode sheet 14 is bent and fixed on the power board 20, and the negative electrode sheet 16 is welded to the bottom of the power board 20; the electrode sheet 14 has elastic force and is an interference fit with the battery 19, which can ensure the reliability of the battery 19.

[0037] See also Figure 8The electronic control design of the red-green dual-color sight in this embodiment includes a wiring board, a red-green dual-color light source 19, and a keypad 17. Its primary function is to control the graphics and brightness of the red and green light beads using two buttons. Specifically, the power supply is a CR1216 button battery 19. The positive terminal of the battery 19 is connected to the positive terminal of the wiring board via an electrode sheet 14, and the negative terminal of the battery 19 is connected to the negative terminal of the wiring board via a negative electrode sheet 16. The wiring board is equipped with a filter circuit to protect the subsequent circuits from surge pulses. The filtered power can be directly supplied to the wiring board, which is responsible for providing power and related drivers for the entire circuit. The wiring board has an external interface and is connected to the keypad 17 and LED board via a GPIO port. To meet the design requirements for low power consumption, a low-power chip is used to support multiple power modes. Power consumption is as low as microamperes in operating mode and as low as nanoamperes in standby mode. The red dot lamp beads and the green dot lamp beads both have two graphics, dots and circles. Therefore, the sight can switch between red and green colors, dots, circles, and dots and circles. The two lamp beads cannot be lit at the same time; when the red and green lamp beads switch, the brightness of the lamp beads remains consistent; by controlling the size of the duty cycle, the current size of the lamp beads is affected, and then the 12-level brightness adjustment of the lamp beads is achieved, which meets the needs of clear observation and aiming under various natural environment conditions during the day.

[0038] The dimensions of the red and green dual-color sight of this embodiment are: 30mm in length, 25mm in width, and 22mm in height, which are smaller than similar products on the market.

[0039] The sighting scope of the present invention has high reliability and cost-effectiveness. According to the material characteristics of the metalens 2, it is resistant to falling and knocking, has good shockproof performance, and the position deviation of the lens will not lead to a decrease in accuracy. The optical path structure is simple, the price is low, and the cost-effectiveness is high; the aiming accuracy is high, the planar structure can solve the high parallax and aberration problems caused by the uneven thickness of traditional lenses, and the achromatic design can reduce chromatic aberration; it is light and small in size, and the short focal length, ultra-thinness, and light weight of the metalens 2 can reduce the volume and weight of the sighting scope; it is simple to operate and has a wide range of applications, and can realize non-mechanical red and green light multi-graphic fast, unobstructed, and accurate switching, which is not only simple to operate but also can meet the application needs of multiple scenarios.

[0040] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, or two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0041] It will be easily understood by those skilled in the art that the above description is merely 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 in the scope of protection of the present invention.

Claims

1. A red and green dual-color sight based on a superlens, characterized in that: It includes a mirror body, a super lens and a red and green two-color light source arranged in the mirror body; the red and green two-color light source emits red or green dividing patterns to the super lens according to the setting, and the super lens converts the dividing patterns into parallel light incident on the human eye.

2. The red-green dual-color sight based on the superlens according to claim 1, characterized in that: The angle between the super lens and the bottom surface of the mirror body is 63~73°.

3. The red-green dual-color sight based on the super lens according to claim 1, characterized in that: The focal length of the metalens is ≤15 mm, the focal length is ≥1 mm, the wavelength offset is ≤20 nm, and the off-axis angle is ≥10°.

4. The red-green dual-color sight based on the superlens according to claim 1, characterized in that: The superlens has a planar structure and the thickness of the superlens is ≤500 μm.

5. The red-green dual-color sight based on the superlens according to claim 1, characterized in that: The red and green dual-color light source includes a red light source and a green light source respectively arranged on both sides of the optical axis.

6. The red-green dual-color sight based on the super lens according to claim 1, characterized in that: Includes control buttons; the control buttons adjust the color, brightness, size, and style of the reticle pattern.

7. The red-green dual-color sight based on the superlens according to claim 6, characterized in that: Graticule patterns include dots, circles, and crosses.

8. The red-green dual-color sight based on a superlens according to claim 1, characterized in that: The invention comprises a protective mirror which is arranged between the red and green dual-color light source and the super lens.

9. The red-green dual-color sight based on a superlens according to claim 1, characterized in that: It includes a bracket connected to the bottom of the mirror body and used for connecting the mirror body with other devices.

10. The red-green dual-color sight based on a superlens according to claim 1, characterized in that: It includes a light source adjustment mechanism, which is transmission-connected to the red and green dual-color light source and is used to adjust the horizontal and vertical positions of the red and green dual-color light source in the mirror body.

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