CN211601732U - Double-light three-color optical system and sighting device thereof - Google Patents

Abstract

The utility model provides a double-light three-color optical system and an aiming tool thereof, which comprises a green light chip module, a red light chip module and a right-angle prism; the green light chip module and the red light chip module are vertically arranged; the geometric center of the cubic prism is arranged on the intersection point of the emergent rays of the green light chip module and the red light chip module; a diagonal surface of the cubic prism, which extends along a bisector of an included angle of the emergent light of the green light chip module and the emergent light of the red light chip module, is plated with a composite film, and the composite film is used for totally reflecting the emergent red light of the red light chip module and transmitting the emergent green light of the green light chip module. Through the arranged red and green light sources with the emergent light vertical to each other, the generation of green light, red light or yellow light and the like through a control circuit is realized by means of the prism and the total reflection film or the transmission film, and the quantity of the light sources and the volume and the weight of the sighting telescope are greatly reduced.

Description

Double-light three-color optical system and sighting device thereof

Technical Field

The utility model relates to a two light three-colour optical system and aim utensil thereof.

Background

The existing inner red spot collimator has single-light and double-light or three-light (multiple-light), but the three-color function is realized by using a multicolor LED as a light source, and a diaphragm is added in front of the light source to form an inner red spot light spot, so that the electric power consumption is large, the pattern cannot be switched, the structure is complex, and meanwhile, the volume of the collimator is also increased, so that the carrying weight and the volume are increased in different degrees and the collimator is not portable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the electric work that current many light sighting telescope exists and consuming greatly, the unable switching of figure, the structure is complicated, weight and volume cause cost and inconvenient problem of taking partially greatly.

Therefore, the utility model provides a double-light three-color optical system, which comprises a green light chip module, a red light chip module, a right-angle prism and a cemented lens;

the green light chip module and the red light chip module are vertically arranged;

the geometric center of the right-angle prism is arranged on the intersection point of the emergent rays of the green light chip module and the red light chip module;

the cemented lens is arranged on an emergent light path of the cubic prism;

the cemented lens consists of a positive lens and a negative lens which are arranged in the order of distance from the cubic prism; the negative lens is plated with a narrow-band light filter film with the center wavelength of 545 +/-15 nm and a long-wave cut-off light filter film with the wavelength of more than 600 nm;

the right-angle prism is plated with a composite film on a diagonal surface extending along an angular bisector of an included angle of emergent rays of the green light chip module and the red light chip module, the composite film is used for totally reflecting emergent red light of the red light chip module and transmitting emergent green light of the green light chip module

The cube prism is formed by gluing two isosceles right-angle prisms, the diagonal surfaces are gluing surfaces, and A, B, C surfaces of the cube prism are plated with antireflection film antireflection films corresponding to light wavelengths; the A surface and the C surface are two mutually vertical adjacent surfaces and are illumination incidence surfaces of the green light chip module and the red light chip module respectively; the surface B is a light emergent surface of the green light chip module and the red light chip module after passing through the gluing surface.

An aiming tool containing the double-light three-color optical system comprises an LED mounting seat arranged at the rear end of a body, wherein a green light chip module is arranged on the front end surface of the LED mounting seat, and a red light chip module is arranged on one side of the front end of the LED mounting seat through an LED base; the mounting plane of the LED base is perpendicular to the front end face of the LED mounting seat.

The utility model has the advantages that: through the two red and green light sources with mutually vertical emergent light, the generation of green light, red light or yellow light and the like through a control circuit is realized by means of the prism and the total reflection film or the transmission film, the device is suitable for different aiming background environments, and the number of the light sources and the volume and weight of the aiming device are greatly reduced.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of a two-light three-color optical system.

Fig. 2 is a perspective view of an aimer having a dual-light three-color optical system.

Fig. 3 is an axial cross-sectional view of an eyepiece incorporating a dual-light three-color optical system.

FIG. 4 is a schematic diagram of the operation of the optical path of a cube prism.

FIG. 5 is a graph of light reflected at wavelengths greater than 600 nm.

FIG. 6 is a narrow band graph of light transmitted at 545 nm.

Fig. 7 is a graph of light transmittance for a broadband antireflection film at wavelengths of 400nm to 800 nm.

FIG. 8 is a graph of a negative lens in a cemented lens coated with a narrow band filter having a center wavelength of 545. + -.15 nm and a long wavelength cut filter having a wavelength of more than 600 nm.

Description of reference numerals:

1. a green chip module; 2. a red light chip module; 3. a cubic prism; 4. an LED mounting base; 5. a diagonal plane; 6. an LED base; 7. a slider; 8. a body; 9. 10, a light source; 11. and (4) gluing the lens.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

In the present invention, the upper, lower, left, and right in the drawings are regarded as the upper, lower, left, and right of the angle adjustment mechanism of the optical instrument described in the present specification.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, which, however, may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of thoroughly and completely disclosing the present invention and fully conveying the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments presented in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.

Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

In order to overcome the problems of large electric power consumption, incapability of switching graphs, complex structure, heavy weight and large volume, and cost and inconvenience in carrying existing in the conventional multi-optical sight, the embodiment provides a dual-optical three-color optical system shown in fig. 1, which comprises a green light chip module 1, a red light chip module 2 and a cubic prism 3; the green chip module 1 and the red chip module 2 are vertically arranged, they are mutually independent, the sharing of the green light or the red light is realized by the control circuit, in order to generate the third color light, the embodiment uses the cube prism 3 whose geometric center is arranged on the intersection point of the emergent light of the green chip module 1 and the red chip module 2 and the diagonal surface 5 of the cube prism 3 which extends along the angle bisector of the included angle of the emergent light of the green chip module 1 and the red chip module 2 to be plated with a composite film, the composite film is used for totally reflecting the emergent red light of the red chip module 2 and transmitting the emergent green light of the green chip module 1, (therefore, the composite film is formed by the coincidence of the total reflection of the red light and the anti-reflection film of the green light, which is the prior art and is not introduced too much), thereby realizing that the emergent light of the red light is totally reflected for 90 degrees and then is parallel to the emergent, both exit the pupil of the sight shown in fig. 2.

As shown in fig. 4, the incident surface a of the cubic prism 3 perpendicular to the outgoing light of the green chip module is coated with a narrow-band transmissive film for transmitting light of 545nm wavelength, ensuring that green light in a desired wavelength range is emitted through the cubic prism 3 without loss. And an incident surface C and an emergent surface B (the side opposite to the incident surface A is the emergent surface B) which are vertical to the emergent red light of the red light chip module 2 are plated with a broadband antireflection film, so that the red light and the green light are ensured to be emitted out through the cubic prism 3 without loss.

In order to generate a third color light, the embodiment provides the sighting telescope shown in fig. 2 and 3, which is installed on the LED mounting seat 4 at the rear end of the body 8, the green chip module 1 is installed on the front end surface of the LED mounting seat 4, and the red chip module 2 is installed on one side of the front end of the LED mounting seat 4 through an LED base 6; the mounting plane of the LED base 6 is perpendicular to the front end face of the LED mounting seat 4, so that the red light and the green light are ensured to be mutually overlapped to generate the emission of the third color light.

Therefore, the aim of generating various colored lights by using the minimum light sources is realized, so that the complexity and the maintenance cost of the sight are reduced.

Referring to fig. 4, the cube prism 3 in the foregoing embodiment is formed by gluing two isosceles right-angle prisms (including right-angle isosceles prism i and right-angle isosceles prism ii), the diagonal surface 5 is a gluing surface, and B, C surfaces of the cube prism 3 are all plated with a broadband antireflection film with a wavelength of 400 to 800 nm; wherein, a narrow-band light transmission film which transmits 545nm wavelength light is plated on the surface A of the adjacent surface which is vertical to the surface C, and the surface A and the surface C are respectively the illumination incidence surfaces of the green light chip module 1 and the red light chip module 2; the surface B is a light emergent surface of the green light chip module 1 and the red light chip module 2 after passing through a diagonal surface 5, namely a gluing surface.

The specific light path is as follows: cube prism 3 is formed by right angle isosceles prism I and the II veneer of right angle isosceles prism, and light source 9 is that ruddiness chip module 2 launches the light that central wavelength is 658nm for lambda 0, and this light is penetrated into by the C face of right angle isosceles prism I, reflects through the cemented surface of right angle isosceles prism I and II, and the back is penetrated out by the B face of right angle isosceles prism I, and the light direction changes 90, and this cemented surface has plated the rete that the reflection that figure 5 shows is greater than 600nm light.

The light source 10, i.e. the green chip module 1, emits light with a central wavelength λ 0 ═ 545nm, which is incident from the a surface of the right-angle isosceles prism ii, and this surface is coated with the narrow-band transmission film layer capable of transmitting the wavelength of 545nm ± 15nm as shown in fig. 6, and this light passes through the bonding surface of the right-angle isosceles prisms i and ii, i.e. the diagonal surface 5, and then is emitted from the B surface of the right-angle isosceles prism i. In addition, the A, B surface of the right-angle isosceles prism I is plated with a broadband antireflection film with the wavelength of 400 to 800nm shown in FIG. 7.

In the foregoing embodiment, the cemented lens 11 is composed of positive and negative lenses, which are arranged in order from far to near from the cubic prism 3; the negative lens is plated with a narrow-band light filter film with the center wavelength of 545 +/-15 nm and a long-wave cut-off light filter film with the wavelength of more than 600 nm; therefore, when the red and green chip modules are incident on the reflecting surface of the cemented lens 11, namely the negative lens, the negative lens is plated with the narrow-band filter film and the long-wave cut-off filter film curve shown in fig. 8, so that the light rays with the corresponding wavelengths are reflected to the observation direction of the eye lens human eyes, and the green light graph or the red light graph can be observed, and the yellow graph synthesized by the red light and the green light can also be observed. The device is suitable for different aiming background environments.

The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.

Claims (3)

1. A dual-light three-color optical system, comprising: the device comprises a green light chip module (1), a red light chip module (2), a cubic prism (3) and a cemented lens (11);

the green light chip module (1) and the red light chip module (2) are vertically arranged;

the geometric center of the cubic prism (3) is arranged on the intersection point of the emergent rays of the green light chip module (1) and the red light chip module (2);

the cemented lens (11) is arranged on an emergent light path of the cubic prism (3);

the cemented lens (11) consists of a positive lens and a negative lens which are arranged in the order from far to near from the cubic prism (3); the negative lens is plated with a narrow-band light filter film with the center wavelength of 545 +/-15 nm and a long-wave cut-off light filter film with the wavelength of more than 600 nm;

a diagonal surface (5) of the cubic prism (3) extending along an angular bisector of an included angle between emergent rays of the green light chip module (1) and the red light chip module (2) is plated with a composite film, and the composite film is used for totally reflecting the emergent red light of the red light chip module (2) and transmitting the emergent green light of the green light chip module (1).

2. A dual-light, three-color optical system as recited in claim 1, wherein: the cubic prism (3) is formed by gluing two isosceles right-angle prisms, and the diagonal surface (5) is a gluing surface; the A, B, C surfaces of the cubic prisms (3) are plated with antireflection films corresponding to light wavelengths;

the A surfaces are two mutually vertical adjacent surfaces and are illumination incidence surfaces of the green light chip module (1) and the red light chip module (2) respectively;

the surface B is a light emergent surface of the green light chip module (1) and the red light chip module (2) after passing through the gluing surface.

3. A sight including the dual-light three-color optical system of claim 1 or 2, comprising an LED mount (4) mounted at a rear end of the body (8), characterized in that: the green light chip module (1) is installed on the front end face of the LED installation seat (4), and the red light chip module (2) is installed on one side of the front end of the LED installation seat (4) through an LED base (6); the mounting plane of the LED base (6) is vertical to the front end surface of the LED mounting seat (4).

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