CN211669454U

CN211669454U - Optical path splitting and combining prism module device of range finder

Info

Publication number: CN211669454U
Application number: CN202020358472.5U
Authority: CN
Inventors: 刘云坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-10-13
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to a distancer light path deciliter prism module device. The problem of current distancer have structure and prism combination unreasonable place, increased the volume, increased the cost is solved. The device comprises an ocular group and an ocular group, wherein a roof prism, a first prism, a second prism, an auxiliary prism and an auxiliary assembly are arranged between the ocular group and the ocular group, the first prism and the second prism are glued to form a light splitting prism group, the auxiliary prism is arranged on the light splitting prism group, and the auxiliary assembly comprises a detector and one of a self-luminous OLED display and a fully-transparent display. The utility model discloses make the prism quantity that uses still less, avoided the skew serious problem of optical axis angle because of the too many and lead to of prism quantity. The prism structure is more favorable for the assembly and adjustment of products, improves the stability of the products, has lower cost, ensures the optical performance index, simultaneously leads the structure space to be more compact, and is favorable for the miniaturization design and the lightweight design of the products.

Description

Optical path splitting and combining prism module device of range finder

Technical Field

The utility model relates to an optics technical field especially relates to a distancer light path deciliter prism module device.

Background

The optical system of the existing distance measuring instrument has some unreasonable structures, so that the structure is not compact, and the volume of the distance measuring instrument is increased. And the prism combination is not reasonable enough, the number of prisms is large, the product adjustment and the product stability are not facilitated, and the cost is increased.

Disclosure of Invention

The utility model discloses mainly solved current distancer and had structure and the unreasonable place of prism combination, increased the volume, increased the problem of cost, provided a distancer light path deciliter prism module device.

The utility model provides a technical scheme that its technical problem adopted is: a distance meter light path splitting and combining prism module device comprises an ocular group and an objective group, wherein a roof prism, a first prism, a second prism, an auxiliary prism and an auxiliary component are arranged between the objective group and the ocular group, the roof prism and the first prism are respectively arranged at two sides of the second prism, the first prism and the second prism are glued to form a beam splitting prism group, the auxiliary prism is arranged on the beam splitting prism group, one of the roof prism and the first prism faces the objective lens group/eyepiece group, the other one faces the objective lens group/eyepiece group, the auxiliary component comprises a detector, and one of the self-luminous OLED display and the fully-transparent display, wherein one of the detector and the self-luminous OLED display is arranged outside the auxiliary prism, the other one of the detector and the self-luminous OLED display is arranged outside the first prism, and the fully-transparent display is arranged on an incident light path in front of the eyepiece group. The utility model discloses well first prism and second prism glue mutually and constitute beam splitting prism group, owing to adopt the structure that roof prism and beam splitting prism group constitute for the prism quantity that uses still less, compare the current structure that sets up beam splitting cube prism between roof prism and second prism, avoided because of the too skew serious problem of optical axis angle that leads to of prism quantity, the utility model discloses the prism structure more is favorable to the dress of product to transfer, has improved the stability of product to the cost is lower. Additionally the utility model discloses the prism structure is when guaranteeing the optical property index for the structure space is compacter, is favorable to product miniaturization design and lightweight design. The utility model discloses prism size standard and simple structure, roof prism are standard 45 degrees or 48 degrees schmidt roof prisms on the market, and the second prism is simple pentagon prism. In the scheme, the auxiliary component is a combination of a detector and a self-luminous OLED display or a combination of a detector and an LED display. When the detector is combined with the self-luminous OLED display, the detector is arranged on the outer side of the auxiliary prism, the self-luminous OLED display is arranged on the outer side of the first prism, or the self-luminous OLED display is arranged on the outer side of the auxiliary prism, and the detector is arranged on the outer side of the first prism. The auxiliary prism in the scheme comprises a third prism, a fourth prism, a fifth prism or a sixth prism, the corresponding self-luminous OLED display or the full-transparent display is configured according to different auxiliary prisms, the detector is arranged outside the auxiliary prisms, multiple different schemes are formed, the structure is compact, and the effects of product miniaturization design and light weight design are facilitated.

As a preferable scheme of the above scheme, the first prism includes a second light splitting surface, a second transmitting and receiving surface, and a second reflecting surface, the second prism includes a first light splitting surface, a first transmitting and receiving surface, and a third light splitting surface, the ridge prism includes a fifth transmitting and receiving surface, a third transmitting and receiving surface, and a first reflecting surface, the first light splitting surface is glued with the second light splitting surface, and the first transmitting and receiving surface is opposite to the fifth transmitting and receiving surface. An included angle of 24 degrees is formed between the second light splitting surface and the second light receiving and transmitting surface in the first prism, an included angle of 24 degrees is formed between the second light receiving and transmitting surface and the second reflecting surface, an included angle of 132 degrees is formed between the second light splitting surface and the second reflecting surface, or an included angle of 22.5 degrees is formed between the second light splitting surface and the second light receiving and transmitting surface, an included angle of 22.5 degrees is formed between the second light receiving and transmitting surface and the second reflecting surface, and an included angle of 135 degrees is formed between the second light splitting surface and the second reflecting surface. An included angle of 24 degrees is formed between the first transmitting and receiving surface and the first light splitting surface in the second prism, an included angle of 24 degrees is formed between the first transmitting and receiving surface and the third light splitting surface, and an included angle of 132 degrees is formed between the first light splitting surface and the third light splitting surface, or an included angle of 22.5 degrees is formed between the first transmitting and receiving surface and the first light splitting surface in the second prism, an included angle of 22.5 degrees is formed between the first light splitting surface and the third light splitting surface, and an included angle of 135 degrees is formed between the first light splitting surface and the third light splitting surface. An included angle of 66 degrees is formed between the fifth transmitting and receiving surface and the first reflecting surface in the ridge prism, an included angle of 48 degrees is formed between the fifth transmitting and receiving surface and the third transmitting and receiving surface, an included angle of 66 degrees is formed between the first reflecting surface and the third transmitting and receiving surface, or an included angle of 67.5 degrees is formed between the fifth transmitting and receiving surface and the first reflecting surface, an included angle of 45 degrees is formed between the fifth transmitting and receiving surface and the third transmitting and receiving surface, and an included angle of 67.5 degrees is formed between the first reflecting surface and the third transmitting and receiving surface.

As a preferable scheme of the above scheme, the second transceiving surface faces the objective lens group, the third transceiving surface faces the eyepiece lens group, the detector is disposed outside the second transceiving surface, the first focusing lens is disposed between the detector and the second transceiving surface, the fully transparent display is disposed on an incident light path in front of the eyepiece lens group, the auxiliary assembly further includes a laser, an emission lens is disposed at one end where the objective lens group is located, and laser of the laser enters an external environment through the emission lens. In the scheme, the auxiliary assembly adopts a detector and a full-transmission display combination under the structure that the first prism faces the objective lens group and the roof prism faces the eyepiece lens group. The detector is arranged outside the second transceiving surface, namely in the space between the objective lens group and the first prism, and the fully transparent display is arranged in the space between the ridge prism and the eyepiece lens group, so that the original space is fully utilized, and the additional arrangement space is not required, and the structure is more compact. The emission lens and the objective lens are arranged side by side, the laser is arranged in the laser and faces the emission lens, and laser of the laser emits to the emission lens and enters the external environment after passing through the emission lens. This scheme includes the laser instrument, and the laser instrument passes through optical system and enough carries out laser emission, has increased the distancer function.

The incident light enters the first prism from the second transceiving surface, is reflected by the second beam splitting surface, the second transceiving surface and the second reflecting surface in the first prism, then is emitted out of the first prism from the second transceiving surface, and enters the detector through the first focusing lens. The incident light enters the first prism from the second transmitting and receiving surface, is emitted out of the first prism from the second light splitting surface, then enters the second prism through the first light splitting surface, is emitted out of the second prism from the first transmitting and receiving surface after being reflected by the first transmitting and receiving surface and the third light splitting surface in sequence, enters the roof prism through the fifth transmitting and receiving surface, is emitted out of the roof prism from the third transmitting and receiving surface after being reflected by the third transmitting and receiving surface, the first reflecting surface and the fifth transmitting and receiving surface, and finally light is imaged on the fully-transparent display.

As a preferred scheme of the above scheme, the second transceiving surface faces the objective lens group, the third transceiving surface faces the eyepiece lens group, the detector is disposed outside the second transceiving surface, a first focusing lens is disposed between the detector and the second transceiving surface, the auxiliary prism includes a third prism, the third prism includes a fourth transceiving surface, a third reflecting surface and a fourth light dividing surface, the fourth light dividing surface is glued with the third light dividing surface, the self-luminous OLED display is disposed outside the fourth transceiving surface, a first projection lens is disposed between the self-luminous OLED display and the fourth transceiving surface, the auxiliary assembly further includes a laser, a transmitting lens is disposed at one end of the objective lens group, and the laser of the laser enters an external environment through the transmitting lens. An included angle of 24 degrees is formed between the fourth transmitting and receiving surface and the third reflecting surface in the third prism, an included angle of 84 degrees is formed between the third reflecting surface and the fourth light dividing surface, and an included angle of 72 degrees is formed between the fourth transmitting and receiving surface and the fourth light dividing surface. Or an included angle of 22.5 degrees is formed between the fourth transmitting and receiving surface and the third reflecting surface, an included angle of 90 degrees is formed between the third reflecting surface and the fourth light dividing surface, and an included angle of 67.5 degrees is formed between the fourth transmitting and receiving surface and the fourth light dividing surface.

In the scheme, the auxiliary assembly adopts the combination of the detector and the self-luminous OLED display under the structure that the first prism faces the objective lens group and the roof prism faces the eyepiece lens group. The third prism sets up the interior concave part position that forms between third light splitting face and the second plane of reflection, and the part that the third prism surpasss interior concave part is located in laser instrument place rear side, has utilized the space that the laser instrument installation formed for the structure is compacter.

The incident light enters the first prism from the second transceiving surface, is reflected by the second beam splitting surface, the second transceiving surface and the second reflecting surface in the first prism, then is emitted out of the first prism from the second transceiving surface, and enters the detector through the first focusing lens. Light rays of the self-luminous OLED display enter the third prism from the fourth light-receiving surface after passing through the first projection lens, are reflected by the third reflecting surface and the fourth light-receiving surface and then exit the third prism from the fourth light-splitting surface, then enter the second prism from the third light-splitting surface, then exit the second prism from the first light-receiving surface, enter the ridge prism through the fifth light-receiving surface, exit the ridge prism from the third light-receiving surface after being reflected by the third light-receiving surface, the first reflecting surface and the fifth light-receiving surface in sequence, and finally are imaged on the imaging focal plane.

As a preferred scheme of the above scheme, the third transceiving surface faces the objective lens group, the second transceiving surface faces the eyepiece lens group, the self-luminous OLED display is arranged outside the second transceiving surface, a plane mirror and a second projection lens are arranged between the self-luminous OLED display and the second transceiving surface, the auxiliary prism comprises a fourth prism, the fourth prism comprises a first emergent surface and a fifth emergent surface, the fifth emergent surface is glued with the third emergent surface, the detector is arranged outside the first emergent surface, the auxiliary assembly further comprises a laser, an emitting lens is arranged at one end where the objective lens group is located, and laser of the laser enters an external environment through the emitting lens. The first emergent surface of the fourth prism is positioned on one side of the fifth light-dividing surface close to the first prism, and an included angle of 24 degrees is formed between the fifth light-dividing surface and the first emergent surface, or an included angle of 22.5 degrees is formed between the fifth light-dividing surface and the first emergent surface.

In the scheme, the auxiliary assembly adopts the combination of the detector and the self-luminous OLED display under the structure that the first prism faces the ocular lens group and the roof prism faces the objective lens group. Incident light enters the roof prism from the third transceiving surface through the objective lens group, is reflected by the fifth transceiving surface, the first reflecting surface and the third transceiving surface in the roof prism, then is emitted out of the roof prism from the fifth transceiving surface, then enters the second prism from the first transceiving surface, is reflected by the third beam splitting surface and the first transceiving surface in the second prism, then is emitted out of the second prism from the first beam splitting surface, then enters the first prism from the second beam splitting surface, then is emitted out of the first prism from the second transceiving surface, and then is emitted into the eyepiece lens group. Incident light enters the roof prism from the third transmitting and receiving surface, is reflected by the fifth transmitting and receiving surface, the first reflecting surface and the third transmitting and receiving surface in sequence, then is emitted out of the roof prism from the fifth transmitting and receiving surface, enters the second prism through the first transmitting and receiving surface, is emitted out of the second prism through the third light dividing surface, then enters the fourth prism through the fifth light dividing surface, is emitted out of the fourth prism through the first emitting surface, and finally enters the detector. The light rays of the self-luminous OLED display are reflected by the plane reflector, enter the first prism through the second transmitting and receiving surface after passing through the second focusing lens, are reflected by the second reflecting surface, the second transmitting and receiving surface and the second light splitting surface in the first prism, are emitted out of the first prism through the second transmitting and receiving surface, and are imaged on the imaging focal plane.

An inner concave part is formed between the third light splitting surface and the second reflecting surface, the fourth prism is located in the inner concave part and glued with the second prism, and the detector is located on the outer side of the fourth prism and in the inner concave part. In this scheme form inside sunken space between second prism third light splitting face and first prism second plane of reflection, and with concave part including fourth prism and detector setting in, make full use of the space for the structure is compacter, has reduced distancer's volume.

As a preferable scheme of the above scheme, the second transceiving surface faces the objective lens group, the third transceiving surface faces the eyepiece lens group, the detector is disposed outside the second transceiving surface, the first focusing lens is disposed between the detector and the second transceiving surface, the transflective display is disposed on an incident light path in front of the eyepiece lens group, the auxiliary prism includes a fifth prism, the fifth prism includes a sixth splitting surface and a first incident surface, the sixth splitting surface is bonded to the third splitting surface, the auxiliary assembly further includes a laser, the laser is disposed outside the first incident surface, and the second focusing lens is disposed between the laser and the first incident surface. The first incidence plane of the fifth prism is positioned on one side of the sixth light splitting plane far away from the first prism, and 24 degrees are formed between the sixth light splitting plane and the first incidence plane, or 22.5 degrees are formed between the sixth light splitting plane and the first incidence plane.

The scheme is that the first prism faces the objective lens group, the roof prism faces the eyepiece lens group, and the auxiliary assembly adopts the combination of a detector and a full-transmission display. Incident light enters the first prism from the second transmitting and receiving surface, is emitted from the second light splitting surface, then enters the second prism through the first light splitting surface, is emitted from the first transmitting and receiving surface after being reflected by the first transmitting and receiving surface and the third light splitting surface in sequence, enters the roof prism through the fifth transmitting and receiving surface, is emitted from the third transmitting and receiving surface after being reflected by the third transmitting and receiving surface, the first reflecting surface and the fifth transmitting and receiving surface, and finally enters the eyepiece group after passing through the fully-transparent display. The incident light enters the first prism from the second transceiving surface, is reflected by the second beam splitting surface, the second transceiving surface and the second reflecting surface in the first prism, then is emitted out of the first prism from the second transceiving surface, and enters the detector through the first focusing lens. Laser enters the fifth prism from the first incidence plane after passing through the second focusing lens, exits the fifth prism through the sixth light splitting plane, enters the second prism from the third light splitting plane, exits the second prism from the first light splitting plane after being reflected by the first receiving and transmitting plane in the second prism, enters the first prism from the second light splitting plane, exits the first prism through the second receiving and transmitting plane, and finally enters the outside through the objective lens group.

As a preferable scheme of the above scheme, the second transceiving surface faces the objective lens group, the third transceiving surface faces the eyepiece lens group, the detector is disposed outside the second transceiving surface, the first focusing lens is disposed between the detector and the second transceiving surface, the transflective display is disposed on an incident light path in front of the eyepiece lens group, the auxiliary prism includes a sixth prism, the sixth prism includes a seventh splitting surface and a second incident surface, the seventh splitting surface is bonded to the second reflecting surface, the auxiliary assembly further includes a laser, the laser is disposed outside the second incident surface, and the second focusing lens is disposed between the laser and the second incident surface. The second incident surface is positioned on one side of the seventh splitting surface, which is far away from the second prism, and a 24-degree included angle is formed between the second incident surface and the seventh splitting surface, or a 22.5-degree included angle is formed between the second incident surface and the seventh splitting surface.

The scheme is that the first prism faces the objective lens group, the roof prism faces the eyepiece lens group, and the auxiliary assembly adopts the combination of a detector and a full-transmission display. Incident light enters the first prism from the second transmitting and receiving surface, is emitted out of the first prism from the second light splitting surface, then enters the second prism through the first light splitting surface, is emitted out of the second prism from the first transmitting and receiving surface after being reflected by the first transmitting and receiving surface and the third light splitting surface in sequence, enters the roof prism through the fifth transmitting and receiving surface, is emitted out of the roof prism from the third transmitting and receiving surface after being reflected by the third transmitting and receiving surface, the first reflecting surface and the fifth transmitting and receiving surface, and finally enters the eyepiece group after passing through the fully transparent display. The incident light enters the first prism from the second transceiving surface, is reflected by the second beam splitting surface, the second transceiving surface and the second reflecting surface in the first prism, then is emitted out of the first prism from the second transceiving surface, and enters the detector through the first focusing lens. Laser enters the sixth prism from the second incidence surface after passing through the second focusing lens, exits the sixth prism from the seventh light splitting surface, enters the first prism through the second reflecting surface, exits the first prism from the second transceiving surface after being reflected by the second transceiving surface and the second light splitting surface in the first prism, and finally enters the outside through the objective lens group.

As a preferable scheme of the above scheme, the third transceiving surface faces the objective lens group, the second transceiving surface faces the eyepiece lens group, the auxiliary prism includes a seventh prism, the seventh prism includes a second exit surface, a seventh splitting surface, a third incident surface and a third exit surface, the seventh splitting surface is cemented with the third splitting surface, the detector is disposed outside the second exit surface, the first focusing lens is disposed between the detector and the second exit surface, the self-luminous OLED display is disposed outside the third incident surface, and the third projection lens is disposed between the self-luminous OLED display and the third incident surface; the auxiliary assembly further comprises a laser, wherein an emission lens is arranged at one end where the objective lens group is located, and laser of the laser enters the external environment through the emission lens. The seventh splitting surface in the seventh prism is respectively adjacent to the third incident surface and the third emergent surface, the second emergent surface is respectively adjacent to the third incident surface and the third emergent surface, and the third emergent surface is positioned on one side of the seventh splitting surface close to the first prism. An included angle of 60 degrees is formed between the seventh light splitting surface and the third incident surface, an included angle of 120 degrees is formed between the seventh light splitting surface and the third emergent surface, an included angle of 96 degrees is formed between the third incident surface and the second emergent surface, an included angle of 84 degrees is formed between the third emergent surface and the second emergent surface, or an included angle of 67.5 degrees is formed between the seventh light splitting surface and the third incident surface, an angle of 112.5 degrees is formed between the seventh light splitting surface and the third emergent surface, an angle of 90 degrees is formed between the third incident surface and the second emergent surface, and an included angle of 90 degrees is formed between the third emergent surface and the second emergent surface. In addition, due to the existence of the seventh prism, the shape of the first prism is changed, wherein an angle of 108 degrees is formed between the second light splitting surface and the second reflecting surface, an angle of 48 degrees is formed between the second reflecting surface and the second transmitting and receiving surface, or an angle of 112.5 degrees is formed between the second light splitting surface and the second reflecting surface, and an angle of 45 degrees is formed between the second reflecting surface and the second transmitting and receiving surface. The angle between the second light splitting surface and the second transceiving surface is unchanged.

In the scheme, the auxiliary assembly adopts the combination of the detector and the self-luminous OLED display under the structure that the first prism faces the ocular lens group and the roof prism faces the objective lens group. Incident light enters the roof prism from the third transceiving surface through the objective lens group, is reflected by the fifth transceiving surface, the first reflecting surface and the third transceiving surface in the roof prism, then is emitted out of the roof prism from the fifth transceiving surface, then enters the second prism from the first transceiving surface, is reflected by the third beam splitting surface and the first transceiving surface in the second prism, then is emitted out of the second prism from the first beam splitting surface, then enters the first prism from the second beam splitting surface, then is emitted out of the first prism from the second transceiving surface, and finally enters the eyepiece lens group. Incident light enters the roof prism from the third transmitting and receiving surface, is reflected by the fifth transmitting and receiving surface, the first reflecting surface and the third transmitting and receiving surface in sequence, then is emitted out of the roof prism from the fifth transmitting and receiving surface, enters the second prism through the first transmitting and receiving surface, is emitted out of the second prism through the third light splitting surface, then enters the seventh prism through the seventh light splitting surface, is emitted out of the seventh prism through the second emitting surface, and enters the detector after passing through the first focusing lens. Light rays from the light-emitting OLED display enter the seventh prism from the third incident surface, are emitted out of the seventh prism from the third emergent surface, then enter the first prism from the second reflecting surface, are reflected by the second transmitting and receiving surface and the second light splitting surface in the first prism, are emitted out of the first prism from the second transmitting and receiving surface, and finally are imaged on the imaging focal plane.

The utility model discloses well auxiliary assembly includes detector and laser instrument, and the position of detector and laser instrument can be exchanged, and when placing the detector, the optical axis that corresponds just receives the optical axis for the detector, and when placing the laser instrument, the optical axis that corresponds is laser instrument transmission optical axis. Depending on the interchangeable relationship of the detector and the laser, one of the detector/laser and the self-emissive OLED display is disposed outside the auxiliary prism, the other is disposed outside the first prism, and the laser/detector is disposed inside the emitter lens, or outside the auxiliary prism. The detector/laser and the laser/detector are in corresponding relation, that is, when the detector/laser is a detector, the laser/detector is a laser, and when the detector/laser is a laser, the laser/detector is a detector.

As a preferable scheme of the above scheme, the first light splitting surface or the second light splitting surface is plated with a light splitting film layer, and parameters of the light splitting film layer are as follows:

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

the second reflecting surface is plated with a reflecting film layer, and the parameters of the reflecting film layer are as follows:

in = 850 nm-950 nm, R > 99%;

a reflection film layer is plated on the third light splitting surface, and the parameters of the reflection film layer are as follows:

in =400 nm-720nm, R > 99%;

wherein, the input is the wavelength, T is the antireflection film, and R is the reflection film.

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

the third light splitting surface or the fourth light splitting surface is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, T: r = 1: 1, R + T > 99%;

a reflection film layer is plated on the third reflection surface, and the parameters of the reflection film layer are as follows:

in =400 nm-720nm, R > 99%.

in =400 nm-720nm, T: r = 1: 1, R + T > 99%;

the third light splitting surface or the fifth light splitting surface is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%;

in =400 nm-720nm, R > 99%.

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, T: r = 1: 1, T + R > 99%;

in = 850 nm-950 nm, R > 99%;

The third light splitting surface or the sixth light splitting surface is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%.

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

the second reflecting surface or the seventh splitting surface is plated with a splitting film layer, and the parameters of the splitting film layer are as follows:

in = 850 nm-950 nm, T: r = 1: 1, T + R > 99%;

in =400 nm-720nm, R > 99%.

in =400 nm-720nm, T: r = 1: 1, T + R > 99%;

the third light splitting surface or the seventh light splitting surface is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%.

The utility model has the advantages that:

1. the structure that adopts roof prism and beam splitting prism group to constitute for the prism quantity that uses is still less, compares current set up the structure of beam splitting cube prism between roof prism and second prism, has avoided the serious problem of optical axis angle deviation because of the prism quantity is too many and leads to.

2. The prism structure is more beneficial to the assembly and adjustment of products, improves the stability of the products and has lower cost.

3. The prism structure ensures the optical performance index, simultaneously, the structure space is more compact, and the miniaturization design and the lightweight design of the product are facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a sixth embodiment of the present invention;

fig. 7 is a schematic structural diagram of a seventh embodiment of the present invention.

11-first prism 111-second transmitting and receiving surface 112-second light splitting surface 113-second reflecting surface 12-second prism 121-first light splitting surface 122-third light splitting surface 123-first transmitting and receiving surface 13-roof prism 131-fifth transmitting and receiving surface 132-third transmitting and receiving surface 133-first reflecting surface 14-third prism 141-fourth transmitting and receiving surface 142-third reflecting surface 143-fourth light splitting surface 15-fourth prism 151-first exit surface 152-fifth light splitting surface 16-fifth prism 161-sixth light splitting surface 162-first incident surface 17-sixth prism 171-seventh light splitting surface 172-second incident surface 18-seventh prism 181-second exit surface 182-seventh light splitting surface 183-third incident surface 184-third exit surface 20 -objective lens group 30-ocular lens group 40-detector 50-first focusing lens 60-fully transparent display 70-self-emissive OLED display 71-first projection lens 72-second projection lens 73-third projection lens 74-plane mirror 80-laser 90-emission lens 91-second focusing lens.

Detailed Description

The technical solution of the present invention is further described below by way of examples and with reference to the accompanying drawings.

Example 1:

a distance meter light path splitting and combining prism module device is shown in figure 1 and comprises an objective lens group 20 and an eyepiece lens group 30, wherein a first prism 11, a second prism 12, a roof prism 13 and an auxiliary assembly are arranged between the objective lens group and the objective lens group, the first prism and the roof prism are respectively arranged on two sides of the second prism, the first prism and the second prism are glued to form a gluing prism group, the first prism faces to the objective lens group, and the roof prism faces to the eyepiece lens group. The second prism, the first prism and the roof prism jointly form the prism module device of the optical system, so that the product is small in size, low in cost, easy to assemble and adjust, reliable in system and high in stability.

The second prism includes a first light-dividing surface 121, a first transmitting-receiving surface 123, and a third light-dividing surface 122. The included angle B1 between the first light receiving and emitting surface and the first light splitting surface in the second prism is 24 degrees, the included angle B2 between the first light receiving and emitting surface and the third light splitting surface is 24 degrees, and the included angle B3 between the first light splitting surface and the third light splitting surface is 132 degrees. The first prism includes a second light-splitting surface 112, a second transmitting and receiving surface 111, and a second reflecting surface 113. An included angle A1 between the second light splitting surface and the second light receiving and transmitting surface in the first prism is 24 degrees, an included angle A2 between the second light receiving and transmitting surface and the second reflecting surface is 24 degrees, and an included angle A3 between the second light splitting surface and the second reflecting surface is 132 degrees. The roof prism includes a fifth transceiving surface 131, a third transceiving surface 132, and a first reflecting surface 133. An included angle C1 between the fifth transmitting and receiving surface and the first reflecting surface in the roof prism forms a 66 degree angle, an included angle C2 between the fifth transmitting and receiving surface and the third transmitting and receiving surface forms a 48 degree angle, and an included angle C3 between the first reflecting surface and the third transmitting and receiving surface forms a 66 degree angle. The first light splitting surface and the second light splitting surface are glued oppositely, the second receiving and transmitting surface faces the objective lens group, and the third receiving and transmitting surface faces the eyepiece lens group.

In addition, the angles of the first prism, the second prism and the roof prism can also be arranged in a second mode. The included angle B1 between the first transmitting and receiving surface and the first light splitting surface in the second prism is 22.5 degrees, the included angle B2 between the first light splitting surface and the third light splitting surface is 22.5 degrees, and the included angle B3 between the first light splitting surface and the third light splitting surface is 135 degrees. An included angle A1 between the second light splitting surface and the second light receiving and transmitting surface in the first prism forms 22.5 degrees, an included angle A2 between the second light receiving and transmitting surface and the second reflecting surface forms 22.5 degrees, and an included angle A3 between the second light splitting surface and the second reflecting surface forms 135 degrees. An included angle C1 between the fifth transmitting and receiving surface and the first reflecting surface in the roof prism forms 67.5 degrees, an included angle C2 between the fifth transmitting and receiving surface and the third transmitting and receiving surface forms 45 degrees, and an included angle C3 between the first reflecting surface and the third transmitting and receiving surface forms 67.5 degrees.

The auxiliary components include a detector 40, a laser 80, and a fully transmissive display 60. The probe is disposed outside the second transmitting/receiving surface 111, and a first focusing lens 50 is disposed between the probe and the second transmitting/receiving surface. An emission lens 90 is arranged on one side of the objective lens group, the emission lens is positioned below the objective lens group, the laser is arranged on the inner side of the emission lens, and the laser enters the external environment through the emission lens. The full-transmission display is arranged between the roof prism and the eyepiece group and is positioned on an incident light path.

In fig. 1, 1A is an aiming optical axis of the distance measuring device, an incident light ray passes through the objective lens group 20, enters the first prism from the second transmitting and receiving surface 111, exits the first prism from the second light splitting surface 112, enters the second prism from the first light splitting surface 121, is reflected by the first transmitting and receiving surface 123 and the third light splitting surface 122 in the second prism in sequence, exits the second prism from the first transmitting and receiving surface, enters the roof prism from the fifth transmitting and receiving surface 131, exits the roof prism from the third transmitting and receiving surface 132 after being reflected by the third transmitting and receiving surface 132, the first reflecting surface 133 and the fifth transmitting and receiving surface 131 in the roof prism, finally is imaged on the fully transparent display 60, and a human eye observes an image of an object formed by the optical axis through the ocular lens group 30.

And 1B is a detector receiving optical axis, incident light enters the first prism from the second transmitting and receiving surface 111 through the objective lens group 20, is reflected by the second light splitting surface 112, the second transmitting and receiving surface 111 and the second reflecting surface 113 in sequence in the first prism, then exits the first prism from the second transmitting and receiving surface, and enters the detector 40 after passing through the first focusing lens 50.

And 1C is a laser emission optical axis, and laser is emitted by the laser 80 and directed to a target to be measured after passing through the emission lens 90.

In addition, the positions of the detector and the laser can be interchanged, when the detector is placed, the corresponding optical axis is the detector receiving optical axis, and when the laser is placed, the corresponding optical axis is the laser emitting optical axis.

A light splitting film layer is plated on the first light splitting surface 121 or the second light splitting surface 112, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

the second reflecting surface 113 is plated with a reflecting film layer, and the parameters of the reflecting film layer are as follows:

in = 850 nm-950 nm, R > 99%;

the third light splitting surface 122 is plated with a reflection film layer, and the parameters of the reflection film layer are as follows:

in =400 nm-720nm, R > 99%;

Example 2:

this embodiment shows a second structure of the distance meter optical path splitting and combining prism module device, as shown in fig. 2, compared with embodiment 1, the device further has an auxiliary prism, which includes a third prism 14, and replaces the full-transparent display with a self-luminous OLED display 70. Wherein the third prism is glued to the third light dividing surface 122 of the second prism. The third prism comprises a fourth transmitting and receiving surface 141, a third reflecting surface 142 and a fourth light dividing surface 143, the fourth light dividing surface is glued with the third light dividing surface, and the fourth transmitting and receiving surface is positioned on one side of the fourth light dividing surface, which is close to the first prism. The self-luminous OLED display is disposed outside the fourth transmitting and receiving surface, and a first projection lens 71 is disposed between the self-luminous OLED display and the fourth transmitting and receiving surface. First prism, second prism, third prism and roof prism constitute optical system's prism module device jointly for the product is small, and is with low costs, easily assembles the timing, and the system is reliable, and stability is high. In addition, because no optical part or display is arranged on the focal plane FP of the optical axis, the light transmittance can be improved, and the observation is brighter and clearer.

An included angle D1 between the fourth transmitting and receiving surface and the third reflecting surface in the third prism is 24 degrees, an included angle D2 between the third reflecting surface and the fourth light dividing surface is 84 degrees, and an included angle D3 between the fourth transmitting and receiving surface and the fourth light dividing surface is 72 degrees. Or corresponding to the second setting of the angle, the included angle D1 between the fourth transmitting and receiving surface and the third reflecting surface in the third prism is 22.5 degrees, the included angle D2 between the third reflecting surface and the fourth light-dividing surface is 90 degrees, and the included angle D3 between the fourth transmitting and receiving surface and the fourth light-dividing surface is 67.5 degrees.

In fig. 2A, 2A is an observation optical axis of the distance measuring apparatus, an incident light ray passes through the objective lens group 20, enters the first prism from the second transmitting and receiving surface 111, exits the first prism from the second light splitting surface 112, enters the second prism from the first light splitting surface 121, is reflected by the first transmitting and receiving surface 123 and the third light splitting surface 122 in the second prism in sequence, exits the second prism from the first transmitting and receiving surface, enters the roof prism from the fifth transmitting and receiving surface 131, exits the roof prism from the third transmitting and receiving surface 132 after being reflected by the third transmitting and receiving surface 132, the first reflecting surface 133 and the fifth transmitting and receiving surface 131 in the roof prism, and then enters the eyepiece lens group.

The 2B detector receives the optical axis, the incident light beam enters the first prism through the objective lens group 20 and the second transceiving surface 111, the incident light beam is reflected by the second beam splitting surface 112, the second transceiving surface 111 and the second reflecting surface 113 in the first prism in sequence and then exits the first prism through the second transceiving surface, and the light beam enters the detector 40 after passing through the first focusing lens 50.

And 2C is a laser emission optical axis, and the laser is emitted by the laser and points to the measured object after passing through the emission lens 90.

And 2D is a projection optical axis of the self-luminous OLED display, light rays are emitted from the self-luminous OLED display, enter the third prism through the fourth transmitting and receiving surface 141 after passing through the first projection lens 71, are reflected by the third reflecting surface 142 and the fourth transmitting and receiving surface 141 in the third prism, are emitted from the fourth light-emitting surface 143 out of the third prism, enter the second prism through the third light-dividing surface 122, are emitted from the second prism through the first transmitting and receiving surface 123, enter the roof prism through the fifth transmitting and receiving surface 131, are emitted from the third transmitting and receiving surface 132 out of the roof prism after being reflected by the third transmitting and receiving surface 132, the first reflecting surface 133 and the fifth transmitting and receiving surface 131 in the roof prism, and are imaged on the imaging focal plane.

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

the third light splitting surface 122 or the fourth light splitting surface 143 is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, T: r = 1: 1, R + T > 99%;

the third reflecting surface 142 is plated with a reflecting film layer, and the parameters of the reflecting film layer are as follows:

in =400 nm-720nm, R > 99%;

Example 3:

this embodiment provides a third structure of the distance meter optical path splitting and combining prism module device, as shown in fig. 3, compared with embodiment 1, the structure is different in that the roof prism 13 faces the objective lens group 20, the first prism 11 faces the ocular lens group 30, the device further has an auxiliary prism, the auxiliary prism includes a fourth prism 15, and a self-luminous OLED display 70 is used to replace a fully transparent display. The fourth prism glue is glued on the third light splitting surface. The fourth prism comprises a first exit face 151 and a fifth facet 152, glued to the third facet, wherein the first exit face is located on the side of the fifth facet close to the first prism. The detector is located outside the first exit surface, and a first focusing lens 50 is disposed between the detector and the first exit surface. The self-luminous OLED display is disposed outside the second transmitting and receiving surface, and a plane mirror 74 and a second projection lens 72 are disposed between the self-luminous OLED display and the second transmitting and receiving surface. The first prism, the second prism, the fourth prism and the roof prism jointly form the prism module device of the optical system, so that the product is small in size, low in cost, easy to assemble and adjust, reliable in system and high in stability. In addition, because no optical part or display is arranged on the focal plane FP of the optical axis, the light transmittance can be improved, and the observation is brighter and clearer.

The fifth light-dividing surface in the fourth prism forms an angle E1 with the first emergent surface, wherein the angle E1 is 24 degrees. Corresponding to the second setting of the angle, the fifth facet makes an angle E1 of 22.5 ° with the first exit face.

In fig. 3A, which is an observation optical axis of the distance measuring instrument, an incident light ray passes through the objective lens group 20, enters the roof prism from the third transmitting and receiving surface 132, is reflected by the fifth transmitting and receiving surface 131, the first reflecting surface 133 and the third transmitting and receiving surface 132 in the roof prism, then exits the roof prism from the fifth transmitting and receiving surface 131, enters the second prism from the first transmitting and receiving surface 123, is reflected by the third light splitting surface 122 and the first transmitting and receiving surface 123 in the second prism, exits the second prism from the first light splitting surface 121, then enters the first prism from the second light splitting surface 112, exits the first prism from the second transmitting and receiving surface 111, and then enters the ocular lens group.

And 3B is a detector receiving optical axis, incident light passes through the objective lens group 20, enters the roof prism from the third transmitting and receiving surface 132, is reflected by the fifth transmitting and receiving surface 131, the first reflecting surface 133 and the third transmitting and receiving surface 132 in the roof prism, then is emitted out of the roof prism from the fifth transmitting and receiving surface 131, then enters the second prism from the first transmitting and receiving surface 123, is emitted out of the second prism from the third light splitting surface, then enters the fourth prism from the fifth light splitting surface, is emitted out of the fourth prism from the first emitting surface, and enters the detector after passing through the first focusing lens 50.

And 3C is a laser emission optical axis, and laser is emitted by the laser and points to the target to be detected after passing through the emission lens 90.

The 3D is a projection optical axis of the self-luminous OLED display, light rays are emitted from the self-luminous OLED display, reflected by the plane mirror 74, enter the first prism through the second transmitting and receiving surface after passing through the second projection lens 72, are emitted from the second transmitting and receiving surface out of the first prism after being reflected by the second reflecting surface 113, the second transmitting and receiving surface 111 and the second light splitting surface 112 in the first prism, and are imaged on an imaging focal plane.

in =400 nm-720nm, T: r = 1: 1, R + T > 99%;

the third light splitting surface 122 or the fifth light splitting surface 152 is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%;

in =400 nm-720nm, R > 99%;

Example 4:

in this embodiment, a fourth structure of the optical path splitting and combining prism module device for a range finder is shown in fig. 4, and compared with embodiment 1, the device further includes an auxiliary prism, where the auxiliary prism includes a fifth prism 16, and the fifth prism is glued on a third light splitting surface 122 of the second prism. The fifth prism includes a sixth splitting surface 161 and a first incident surface 162, the sixth splitting surface 161 is glued with the third splitting surface 122, and the first incident surface is located on a side of the sixth splitting surface far away from the first prism. The probe 40 is disposed outside the second transmitting/receiving surface, and a first focusing lens 50 is disposed between the probe and the second transmitting/receiving surface.

The auxiliary assembly further comprises a laser 80 arranged outside the first entrance face 162, with a second focusing lens 91 arranged between the laser and the first entrance face.

An included angle F1 between the sixth beam splitting surface and the first incidence surface of the fifth prism is 24 degrees, or an included angle F1 between the sixth beam splitting surface and the first incidence surface is 22.5 degrees corresponding to the second arrangement of the angles

In fig. 4, 4A is an observation optical axis of the range finder, an incident light ray passes through the objective lens group 20, enters the first prism from the second transmitting and receiving surface 111, exits the first prism from the second light splitting surface 112, enters the second prism from the first light splitting surface 121, is reflected by the first transmitting and receiving surface 123 and the third light splitting surface 122 in the second prism in sequence, exits the second prism from the first transmitting and receiving surface, enters the roof prism from the fifth transmitting and receiving surface 131, exits the roof prism from the third transmitting and receiving surface 132 after being reflected by the third transmitting and receiving surface 132, the first reflecting surface 133 and the fifth transmitting and receiving surface 131 in the roof prism, finally forms an image on the fully transparent display 60, and a human eye observes the image of the object formed by the optical axis through the ocular lens group 30.

And 4B is a receiving optical axis of the detector, the incident light enters the first prism from the second transceiving surface, is reflected by the second beam splitting surface 112, the second transceiving surface 111 and the second reflecting surface 113 in the first prism, then exits the first prism from the second transceiving surface, and enters the detector through the first focusing lens 50.

4C is a laser emission optical axis, and laser light of the laser enters the fifth prism 16 through the first incident surface 162 after passing through the second focusing lens 91, exits the fifth prism through the sixth light splitting surface 161, enters the second prism through the third light splitting surface 122, exits the second prism through the first light splitting surface 121 after being reflected by the first light splitting surface 123 in the second prism, enters the first prism through the second light splitting surface 112, exits the first prism through the second light splitting surface 111, and finally enters the outside through the objective lens group.

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, T: r = 1: 1, T + R > 99%;

in = 850 nm-950 nm, R > 99%;

the third light splitting surface 122 or the sixth light splitting surface 161 is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%;

Example 5:

in this embodiment, a fifth structure of the optical path splitting and combining prism module device of the range finder is provided, as shown in fig. 5, compared with the device of embodiment 1, the device further includes an auxiliary prism, and the auxiliary prism includes a sixth prism 17, and the sixth prism is glued on the second reflecting surface 113 on the first prism. The sixth prism includes a seventh splitting surface 171 cemented with the second reflecting surface 113 and a second incident surface 172 located on a side of the seventh splitting surface away from the second prism. The probe 40 is disposed outside the second transmitting/receiving surface, and a first focusing lens 50 is disposed between the probe and the second transmitting/receiving surface. The auxiliary assembly further comprises a laser 80 arranged outside the second entrance face, and a second focusing lens 91 is arranged between the laser and the second entrance face.

An included angle G1 between the second incident surface and the seventh splitting surface in the sixth prism forms 24 °, and an included angle G1 between the second incident surface and the seventh splitting surface forms 22.5 ° corresponding to the second arrangement of angles.

In fig. 5A, an observation optical axis of the range finder is shown in fig. 5, an incident light ray passes through the objective lens group 20, enters the first prism from the second transmitting and receiving surface 111, exits the first prism from the second light splitting surface 112, enters the second prism from the first light splitting surface 121, is reflected by the first transmitting and receiving surface 123 and the third light splitting surface 122 in the second prism in sequence, exits the second prism from the first transmitting and receiving surface, enters the roof prism from the fifth transmitting and receiving surface 131, exits the roof prism from the third transmitting and receiving surface 132 after being reflected by the third transmitting and receiving surface 132, the first reflecting surface 133 and the fifth transmitting and receiving surface 131 in the roof prism, finally forms an image on the fully transparent display 60, and a human eye observes an image of an object formed by the optical axis through the ocular lens group 30.

And 5B is a receiving optical axis of the detector, incident light enters the first prism from the second transceiving surface, is reflected by the second beam splitting surface, the second transceiving surface and the second reflecting surface in the first prism, then is emitted out of the first prism from the second transceiving surface, and enters the detector through the first focusing lens.

And 5C is a laser emission optical axis, laser light of the laser enters the sixth prism 17 through the second incidence surface 172 after passing through the second focusing lens 91, exits the sixth prism through the seventh light splitting surface 171, enters the first prism through the second reflection surface 113, exits the first prism through the second light transmitting and receiving surface 111 after being reflected by the second light transmitting and receiving surface 111 and the second light splitting surface 112 in the first prism, and finally enters the outside through the objective lens group.

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

a light splitting film layer is plated on the second reflecting surface 113 or the seventh light splitting surface 171, and the parameters of the light splitting film layer are as follows:

in = 850 nm-950 nm, T: r = 1: 1, T + R > 99%;

in =400 nm-720nm, R > 99%;

Example 6:

the sixth structure of the optical path splitting and combining prism module device of the distance meter is provided in this embodiment, as shown in fig. 5, compared with embodiment 3, the structure is different in that the auxiliary prism includes a seventh prism 18, and the seventh prism is glued on the third light splitting surface 122. The seventh prism includes a second exit surface 181, a seventh splitting surface 182, a third entrance surface 183, and a third exit surface 184, and the seventh splitting surface is glued to the third splitting surface 122, wherein the seventh splitting surface in the seventh prism is adjacent to the third entrance surface and the third exit surface, the second exit surface is adjacent to the third entrance surface and the third exit surface, and the third exit surface is located on one side of the seventh splitting surface close to the first prism. The detector 40 is arranged outside the second exit surface, and a first focusing lens 50 is arranged between the detector and the second exit surface. The self-luminous OLED display 70 is disposed outside the third incident surface, and a third projection lens 73 is disposed between the laser and the third incident surface. The auxiliary assembly further comprises a laser 80, at the end of which the objective lens is located, a transmitting lens 90 is arranged, through which the laser light of the laser enters the external environment. The first prism, the second prism, the seventh prism and the roof prism jointly form the prism module device of the optical system, so that the product is small in size, low in cost, easy to assemble and adjust, reliable in system and high in stability. In addition, because no optical part or display is arranged on the focal plane FP of the optical axis, the light transmittance can be improved, and the observation is brighter and clearer.

An included angle H1 between the seventh splitting surface and the third incident surface is 60 degrees, an included angle H2 between the seventh splitting surface and the third emergent surface is 120 degrees, an included angle H3 between the third incident surface and the second emergent surface is 96 degrees, an included angle H4 between the third emergent surface and the second emergent surface is 84 degrees, or the angle is arranged corresponding to the second type of angle, an included angle H1 between the seventh splitting surface and the third incident surface is 67.5 degrees, an included angle H2 between the seventh splitting surface and the third emergent surface is 112.5 degrees, an included angle H3 between the third incident surface and the second emergent surface is 90 degrees, and an included angle H4 between the third emergent surface and the second emergent surface is 90 degrees.

In addition, due to the existence of the seventh prism, the shape of the first prism is changed, wherein an included angle A3 between the second light splitting surface and the second reflecting surface is 108 degrees, an included angle A2 between the second reflecting surface and the second transceiving surface is 48 degrees, or corresponding to the second arrangement of the angles, an included angle A3 between the second light splitting surface and the second reflecting surface is 112.5 degrees, and an included angle A2 between the second reflecting surface and the second transceiving surface is 45 degrees.

In fig. 6A, which is an observation optical axis of the distance measuring instrument, 6A is an observation optical axis of the distance measuring instrument, an incident light ray enters the roof prism through the objective lens group 20, enters the roof prism through the third transceiving surface 132, is reflected by the fifth transceiving surface 131, the first reflecting surface 133 and the third transceiving surface 132 in the roof prism, exits the roof prism through the fifth transceiving surface 131, enters the second prism through the first transceiving surface 123, exits the second prism through the first light splitting surface 121 after being reflected by the third light splitting surface 122 and the first transceiving surface 123 in the second prism, enters the first prism through the second light splitting surface 112, exits the first prism through the second transceiving surface 111, and then enters the ocular lens group.

And 6B is a receiving optical axis of the detector, incident light enters the roof prism from the third receiving and transmitting surface, is reflected by the fifth receiving and transmitting surface, the first reflecting surface and the third receiving and transmitting surface in sequence, then exits the roof prism from the fifth receiving and transmitting surface, enters the second prism through the first receiving and transmitting surface, exits the second prism from the third light splitting surface, then enters the seventh prism through the seventh light splitting surface, exits the seventh prism from the second exit surface, and finally enters the detector through the first focusing lens.

And 6C is a laser emission optical axis, and laser is emitted by the laser and enters the outside after passing through the emission lens 90.

And 6D is a projection optical axis of the self-luminous OLED display, light rays of the self-luminous OLED display enter the seventh prism from the third incidence surface, exit the seventh prism from the third exit surface, enter the first prism from the second reflection surface, exit the first prism from the second receiving and transmitting surface after being reflected by the second receiving and transmitting surface and the second light splitting surface in the first prism, and are imaged on the imaging focal plane.

in =400 nm-720nm, T: r = 1: 1, T + R > 99%;

the third light splitting surface 122 or the seventh light splitting surface 182 is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%;

Example 7:

the seventh structure of the optical path splitting and combining prism module device of the range finder is provided in this embodiment, as shown in fig. 7, compared with embodiment 1, the shape of the first prism in this embodiment is different, an included angle a1 between the second light splitting surface and the second transmitting and receiving surface in the first prism is 24 °, an included angle a2 between the second transmitting and receiving surface and the second reflecting surface is 90 °, and an included angle A3 between the second light splitting surface and the second reflecting surface is 66 °. The second light splitting surface 112 is glued to the first light splitting surface 121, and the second light splitting surface is longer than the first light splitting surface, and the second light splitting surface is partially located at the lower side of the second prism. The probe 40 is located outside the second transceiving surface.

In fig. 7B, the optical axis of the detector is shown as 7B, the incident light beam enters the first prism from the second transmitting/receiving surface 111 through the objective lens group 20, and then leaves the first prism from the second transmitting/receiving surface after being reflected by the second light splitting surface, the second transmitting/receiving surface, the second reflecting surface, and the second light splitting surface in sequence in the first prism, and then enters the detector 40 through the first focusing lens 50.

A light splitting film layer is plated on the second light splitting surface, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

in =400 nm-720nm, R > 99%.

Other structures and optical axis routes are the same as those of embodiment 1.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms objective lens, first prism, second transmitting and receiving surface, second light splitting surface, second reflecting surface, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a distancer light path divides and shuts prism module device, includes eyepiece group and objective lens group, its characterized in that: a roof prism (13), a first prism (11), a second prism (12), an auxiliary prism and an auxiliary assembly are arranged between an objective lens group (20) and an eyepiece lens group (30), the roof prism and the first prism are respectively arranged on two sides of the second prism, the first prism and the second prism are glued to form a light splitting prism group, the auxiliary prism is arranged on the light splitting prism group, one of the roof prism and the first prism faces the objective lens group/the eyepiece lens group, the other one faces the objective lens group/the eyepiece lens group, the auxiliary assembly comprises a detector (40), a self-luminous OLED display (70) and a full-transparent display (60), one of the detector and the self-luminous OLED display is arranged on the outer side of the auxiliary prism, the other one is arranged on the outer side of the first prism, and the full-transparent display is arranged on an incident light path in front of the eyepiece lens group.

2. The optical path splitting and combining prism module device of the range finder according to claim 1, wherein the first prism comprises a second light splitting surface (112), a second transceiving surface (111) and a second reflecting surface (113), the second prism comprises a first light splitting surface (121), a first transceiving surface (123) and a third light splitting surface (122), the ridge prism comprises a fifth transceiving surface (131), a third transceiving surface (132) and a first reflecting surface (133), the first light splitting surface (121) is glued with the second light splitting surface (112), and the first transceiving surface (123) is opposite to the fifth transceiving surface (131).

3. The distance meter optical path splitting and combining prism module device according to claim 2, wherein the second transmitting and receiving surface (111) faces the objective lens group (20), the third transmitting and receiving surface (132) faces the eyepiece lens group (30), the detector is disposed outside the second transmitting and receiving surface, the first focusing lens (50) is disposed between the detector and the second transmitting and receiving surface, the fully transparent display (60) is disposed on an incident light path in front of the eyepiece lens group, the auxiliary assembly further comprises a laser (80), a transmitting lens (90) is disposed at an end where the objective lens group is located, and laser light of the laser enters an external environment through the transmitting lens.

4. The distance meter optical path splitting and combining prism module device according to claim 2, wherein the second transceiving surface (111) faces the objective lens group (20), the third transceiving surface (132) faces the eyepiece lens group (30), the detector is disposed outside the second transceiving surface, the first focusing lens (50) is disposed between the detector and the second transceiving surface, the auxiliary prism comprises a third prism (14) including a fourth transceiving surface (141), a third reflecting surface (142) and a fourth dispersing surface (143), the fourth dispersing surface is glued with the third dispersing surface, the self-luminous OLED display (70) is disposed outside the fourth transceiving surface, the first projection lens (71) is disposed between the self-luminous OLED display and the fourth transceiving surface, the auxiliary assembly further comprises a laser (80), and the emission lens (90) is disposed at an end where the objective lens group is located, the laser light enters the external environment through the transmitting lens.

5. The distance meter optical path splitting and combining prism module device according to claim 2, wherein the third transmitting and receiving surface (132) faces the objective lens group (20), the second transmitting and receiving surface (111) faces the eyepiece lens group (30), the self-luminous OLED display is disposed outside the second transmitting and receiving surface, a plane mirror (74) and a second projection lens (72) are disposed between the self-luminous OLED display and the second transmitting and receiving surface, the auxiliary prism comprises a fourth prism (15), the fourth prism comprises an exit surface (151) and a fifth light-dividing surface (152), the fifth light-dividing surface (152) is glued with the third light-dividing surface (122), the detector is disposed outside the exit surface, the auxiliary assembly further comprises a laser (80), and an emission lens (90) is disposed at one end where the objective lens group is located, and laser of the laser enters an external environment through the emission lens.

6. The distance meter optical path splitting and combining prism module device according to claim 2, wherein the second transmitting and receiving surface (111) faces the objective lens group (20), the third transmitting and receiving surface (132) faces the eyepiece lens group (30), the detector (40) is disposed outside the second transmitting and receiving surface, a first focusing lens (50) is disposed between the detector and the second transmitting and receiving surface, the fully transparent display (60) is disposed in an incident light path in front of the eyepiece lens group, the auxiliary prism comprises a fifth prism (16) including a sixth splitting surface (161) and a first incident surface (162), the sixth splitting surface (161) is glued to the third splitting surface (122), the auxiliary assembly further comprises a laser (80) disposed outside the first incident surface, and a second focusing lens (91) is disposed between the laser and the first incident surface.

7. The distance meter optical path splitting and combining prism module device according to claim 2, wherein the second transmitting and receiving surface (111) faces the objective lens group (20), the third transmitting and receiving surface (132) faces the eyepiece lens group (30), the detector (40) is disposed outside the second transmitting and receiving surface, the first focusing lens (50) is disposed between the detector and the second transmitting and receiving surface, the fully transparent display (60) is disposed on the incident light path in front of the eyepiece lens group, the auxiliary prism comprises a sixth prism (17) which comprises a seventh splitting surface (171) and a second incident surface (172), the seventh splitting surface is glued to the second reflecting surface (113), the auxiliary assembly further comprises a laser (80) which is disposed outside the second incident surface, and a second focusing lens (91) is disposed between the laser and the second incident surface.

8. The distance meter optical path splitting and combining prism module device according to claim 2, wherein the third transmitting and receiving surface (132) faces the objective lens group (20), the second transmitting and receiving surface (111) faces the eyepiece lens group (30), the auxiliary prism comprises a seventh prism (18), the seventh prism comprises a second exit surface (181), a seventh splitting surface (182), a third entrance surface (183) and a third exit surface (184), the seventh splitting surface is glued with the third splitting surface (122), the detector (40) is arranged outside the second exit surface, the first focusing lens (50) is arranged between the detector and the second exit surface, the self-luminous OLED display (70) is arranged outside the third entrance surface, and the third projecting lens (73) is arranged between the self-luminous OLED display and the third entrance surface; the auxiliary assembly further comprises a laser (80), an emission lens (90) is arranged at one end where the objective lens group is located, and laser of the laser enters an external environment through the emission lens.

9. The distance meter optical path splitting and combining prism module device according to claim 3, wherein

A light splitting film layer is plated on the first light splitting surface (121) or the second light splitting surface (112), and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

the second reflecting surface (113) is plated with a reflecting film layer, and the parameters of the reflecting film layer are as follows:

in = 850 nm-950 nm, R > 99%;

a reflection film layer is plated on the third light splitting surface (122), and the parameters of the reflection film layer are as follows:

in =400 nm-720nm, R > 99%;

10. The distance meter optical path splitting and combining prism module device according to claim 4, wherein

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

the third light splitting surface (122) or the fourth light splitting surface (143) is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, T: r = 1: 1, R + T > 99%;

a reflecting film layer is plated on the third reflecting surface (142), and the parameters of the reflecting film layer are as follows:

in =400 nm-720nm, R > 99%;

11. The distance meter optical path splitting and combining prism module device according to claim 5, wherein

in =400 nm-720nm, T: r = 1: 1, R + T > 99%;

the third light splitting surface (122) or the fifth light splitting surface (152) is plated with a light splitting film layer, and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%;

in =400 nm-720nm, R > 99%;

12. The distance meter optical path splitting and combining prism module device according to claim 6, wherein

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, T: r = 1: 1, T + R > 99%;

in = 850 nm-950 nm, R > 99%;

a light splitting film layer is plated on the third light splitting surface (122) or the sixth light splitting surface (211), and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%;

13. The distance meter optical path splitting and combining prism module device according to claim 7, wherein

in =400 nm-720nm, T > 99%; in = 850 nm-950 nm, R > 99%;

a light splitting film layer is plated on the second reflecting surface (113) or the seventh light splitting surface (231), and the parameters of the light splitting film layer are as follows:

in = 850 nm-950 nm, T: r = 1: 1, T + R > 99%;

in =400 nm-720nm, R > 99%;

14. The distance meter optical path splitting and combining prism module device according to claim 8, wherein

in =400 nm-720nm, T: r = 1: 1, T + R > 99%;

a light splitting film layer is plated on the third light splitting surface (122) or the seventh light splitting surface (182), and the parameters of the light splitting film layer are as follows:

in =400 nm-720nm, R > 99%; in = 850 nm-950 nm, T > 99%;