WO2016074578A1

WO2016074578A1 - Optical path system combining dual light into one and laser collimator containing same

Info

Publication number: WO2016074578A1
Application number: PCT/CN2015/093693
Authority: WO
Inventors: 孙建华; 张哲子; 郝志强
Original assignee: 西安华科光电有限公司; 孙建华
Priority date: 2014-11-14
Filing date: 2015-11-03
Publication date: 2016-05-19
Also published as: CN204269921U

Abstract

Provided are an optical path system combining dual light into one and a laser collimator containing same, comprising a first laser light source (3) and a second laser light source (4), and further comprising an agglutinate prism (2) formed by parallel agglutination of bottom faces of a first prism (2a) and a second prism (2b), wherein a transflective coating is plated on the bottom face of the second prism (2b), the first prism (2a) and the second prism (2b) are both right-angled prisms, emergent light of the first laser light source (3) is perpendicularly incident on the horizontally extending side face (2ba) of the second prism (2b), and emergent light of the second laser light source (4) is perpendicularly incident on a first perpendicular side face (2aa) of the first prism (2a). Good synthesis of dual light is ensured, and the mechanical structure of combining dual light into one is simplified. Moreover, because of good mutual superposition of the optical paths, debugging precision is substantially improved and the debugging becomes simple and easy. The illumination direction of a light source device such as a collimator or a flashlight can be adjusted and changed very easily by using an adjusting screw and an adjusting spring.

Description

Double-photosynthetic optical path system and laser sighting device containing the same

Technical field

The utility model belongs to the field of optoelectronic technology, and particularly relates to a dual photosynthetic optical path system and a laser aiming device comprising the optical path system, which can be applied to various technical fields such as a synthetic light source, various sighting devices and illumination light sources.

Background technique

The existing multi-source optical path is synthesized in the same optical path, and has poor synthesis, large volume, and inconvenient debugging. Moreover, most of the two lasers are output. For example, the two-beam laser with the patent number of 00230860.6 is mainly composed of two reversing devices arranged in front and rear, and a semi-reflective film is used in the first incident refractor to reflect a part of the beam and then emit it. The remaining part of the transmitted light beam is reflected by the back-return device using the full-reflection film to form a bundle of incident light to generate two beams of emitted light. The main purpose is to simultaneously process two workpieces to improve productivity, which is not strictly speaking. Dual light source.

Another example is a dual-light flashlight with the patent number 201320152642.4, which mainly installs an LED lamp and a laser module in the lamp head, so that the flashlight has the function of simultaneously outputting ordinary illumination and laser irradiation, although The foregoing patents use two separate light sources, but the output light paths are different, and do not need to be overlapped or combined. For this reason, if it is necessary to use different light sources in different situations or simultaneously use two light sources whose optical paths are almost coincident. The need to re-develop the optical path system.

Utility model content

The purpose of the utility model is to solve the problems of poor synthesis, large volume and inconvenient debugging in the existing dual light source power supply.

To achieve the above object, the present invention provides a dual photosynthetic optical path system comprising a first laser source (3) and a second laser source (4), characterized in that it further comprises a first prism (2a) and a a cemented prism (2) in which the bottom surfaces of the prisms (2b) are glued together in parallel;

a semi-transparent film is plated on the bottom surface of the second prism (2b);

The first prism (2a) and the second prism (2b) are both right angle prisms;

The emitted light of the first laser light source (3) is perpendicularly incident on a horizontally extending side surface (2ba) of the second prism (2b);

The outgoing light of the second laser light source (4) is incident perpendicularly onto the first vertical side (2aa) of the first prism (2a).

A focusing lens or a focusing lens group (1) is disposed on the second vertical side surface (2bb) of the second prism (2b).

A laser sight comprising the above-mentioned dual-photosynthetic optical path system, comprising a casing (10) having a light exit hole, in particular, the first laser light source (3) and the second laser light source (4) are installed in the house In the housing (10) and respectively placed in mutually perpendicular directions, such that the outgoing light of the first laser source (3) and the second laser source (4) are perpendicular and intersect each other, and through the cemented prism (2) After exiting through the housing (10) through the exit aperture (5).

An inner casing (7) is disposed in the casing (10), and the inner casing (7) includes a light hole portion (7a) and a cylindrical portion for mounting the focusing lens or the focusing lens group (1) ( 7b) the connected outer surface is a spherical hollow ball head adjustment portion (7c);

The light hole portion (7a) is installed in the light exit hole (5), and a vertical horizontal screw hole (10a) extending inward from the outer casing (10) is formed on the peripheral wall of the light exit hole (5) and a vertical screw hole (10b), on the inner wall of the peripheral wall corresponding to the horizontal screw hole (10a) and the vertical screw hole (10b) respectively provided with a blind hole for the adjustment spring (6);

An end mounting end of the hollow ball head adjusting portion (7c) is provided with an end mounting hole for mounting the second laser light source (4); the top of the hollow ball head adjusting portion (7c) is provided with the mounting portion a top mounting hole (15) of a laser source (3);

The cementing prism (2) is mounted on a prism holder (8) placed in the hollow ball head adjusting portion (7c).

The prism holder (8) has a circular tube portion (8a) whose front end is placed in the cylindrical portion (7b) and a mounting groove (8b) which is integral with the circular tube portion (8a) and whose inner and outer surfaces are spherical. Composition

The slot of the mounting slot (8b) is opposite to the first laser source (3); and the rear end of the mounting slot (8b) is open, facing the second laser source (4);

The inside of the top of the notch of the mounting groove (8) is provided with two axially extending slots (8c) for locking against the horizontally extending side of the second prism (2b) (2ba) At the top edge of the ;

a second vertical side (2bb) of the second prism (2ba) is disposed opposite the rear port of the circular tube portion (8a);

The inner surface of the hollow ball head adjusting portion (7c) is a spherical surface;

a pitch adjusting screw for adjusting a pitch angle of the round pipe portion (8a) is opened on the cylindrical portion (7b) (9), the pitch adjustment screws (9) are four, and are circumferentially disposed evenly at the annular step (7e) on the outer surface of the rear end portion of the cylindrical portion (7b);

The bottom of the hollow ball head adjusting portion (7c) is provided with two horizontal adjusting screws (11) for adjusting the relative arrangement of the left and right angles of the mounting groove (8b);

The bottom of the mounting groove (8b) is provided with two grooves (8d) symmetrically about the line, and an axial arc-shaped baffle (8e) is formed at the center line so that the two oppositely disposed levels Adjustments are respectively pushed on both sides of the axial arc-shaped barrier (8e) to achieve adjustment of the left-right deflection of the mounting groove (8).

The utility model has the advantages that the wavelength of the light source may be the same or different as needed. Control can be controlled individually or simultaneously.

The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

DRAWINGS

Figure 1 is a schematic diagram of a dual photosynthetic optical path system.

Fig. 2 is a schematic view showing a state in which the first prism and the second prism bottom surface constituting the cemented prism are opposed to each other.

3 is an axial cross-sectional view of a laser sight having the dual photosynthetic optical path system shown in FIG. 1.

Figure 4 is a diagram showing the structure of the inner casing.

Fig. 5 is a schematic view showing the outline of a laser sight of the dual-photosynthetic optical path system shown in Fig. 1.

Figure 6 is a schematic view of the prism holder structure

Figure 7 is a schematic transverse cross-sectional view of Figure 5 at the mounting groove of the prism holder.

DESCRIPTION OF REFERENCE NUMERALS: 1. Focusing lens or focusing lens group; 2. Gluing prism; 2a, first prism; 2b, second prism; 2ba, side surface; 2aa, first vertical side; 2bb, second vertical side; , the first laser light source; 4, the second laser light source; 5, the light exit hole; 6, the adjustment spring; 7, the inner shell; 7a, the light hole portion; 7b, the cylindrical portion; 7c, the hollow ball head adjustment portion; 7e/ Annular step; 8, prism seat; 8a, round tube portion; 8b, mounting groove; 8c, card slot; 8d, groove; 9, pitch adjustment screw; 10, housing; 10a, horizontal screw hole; 10b, vertical Screw hole; 11, horizontal adjustment screw.

detailed description

In order to overcome the problems of poor synthesis, large volume, and inconvenient debugging of the existing dual-source power supply, the present embodiment provides a dual-integrated optical path system as shown in FIG. 1 , including a first laser light source 3 . And the second laser light source 4, further comprising a bottom surface parallel to each other by the first prism 2a and the second prism 2b shown in FIG. The glue prism 2 is combined; wherein the incident light of the second laser light source 4 is transmitted to the bottom surface of the second prism 2b via the bottom surface of the first prism 2a, and then passes through the bottom surface of the second prism 2b and passes through the second prism 2b. The second vertical side surface 2bb is horizontally emitted. For this purpose, a semi-transparent film is plated on the bottom surface of the second prism 2b, and the incident laser light from the first prism 2a incident on the bottom surface of the second prism 2b is ensured to be transmitted through At the same time, it is ensured that the laser light on the horizontally extending side surface 2ba of the second prism 2b is reflected and then horizontally emitted through the second vertical side surface 2bb of the second prism 2b, so that the selected first prism 2a and second prism 2b are both For the right-angle prism, the bottom surfaces of the two sides are relatively glued together to form a glued prism 2, and the externally disposed reflective film and the semi-transparent and semi-transparent film can make two laser beams that are normally incident to be emitted in the same horizontal direction to form a two-in-one optical path system. .

In order to make the emitted laser light brighter, in the present embodiment, a focus lens or a focus lens group 1 is provided on the second vertical side surface 2bb of the second prism 2b.

In summary, it is not difficult to see that the dual photosynthetic optical path system is simple and simple, which facilitates debugging and miniaturization of the structure, and the exiting optical paths of the two laser beams coincide with each other because the degree of synthesis is good, which is more conducive to the use of the pair. Commissioning of illumination sources or sights for a photosynthetic system.

3 is a laser sight having the above-described dual-photosynthetic optical path system, including a housing 10 having a light-emitting aperture, and the first laser light source 3 and the second laser light source 4 are mounted in the housing 10 and placed separately The mutually perpendicular directions are such that the outgoing lights of the first laser light source 3 and the second laser light source 4 are perpendicular to each other and intersect with each other, and are then emitted from the casing 10 through the light exiting holes 5 via the cementing prism 2. This is a relatively simple, double-photosynthetic optical path system is relatively fixed, that is, the sight can not change the direction of the outgoing light, suitable for the use of two different laser sources or alternate use, such as the use of green laser light source during the day, At night and use a red laser source.

In order to enable the direction of the outgoing laser to be adjusted, an inner casing 7 shown in FIG. 4 may be further disposed in the casing 10, and the inner casing 7 includes a light hole portion 7a and a via hole for mounting the focus lens or the focus lens group 1. The outer surface of the cylindrical portion 7b communicates with the spherical hollow ball head adjusting portion 7c; the optical hole portion 7a is mounted in the light exiting hole 5 shown in FIG. 3, and the peripheral wall of the light exiting hole 5 is provided with the self shown in FIG. The mutually perpendicular horizontal screw holes 10a and the vertical screw holes 10b extending outwardly of the housing 10 are provided with placement adjustment springs on the inner walls of the peripheral walls of the light exit holes 5 corresponding to the horizontal screw holes 10a and the vertical screw holes 10b, respectively. Referring to FIG. 4, the rear end portion of the hollow ball head adjusting portion 7c is provided with an end mounting hole for mounting the second laser light source 4; the top of the hollow ball head adjusting portion 7c is provided with the first mounting. The top mounting hole 15 of the laser light source 3; the cementing prism 2 is mounted on the prism holder 8 placed in the hollow ball head adjusting portion 7c.

Up to now, it is easy to see that the adjustment of the pitch angle and the left and right swing angles of the inner casing 7 is achieved by the cooperation of the adjusting screw and the adjusting spring, thereby realizing the irradiation direction of the outgoing laser light of the double-photosynthetic optical path system installed therein. The adjustment is very convenient and has a high precision.

6, the prism portion 8 is formed of a circular tube portion 8a whose front end is placed in the cylindrical portion 7b, and a mounting groove 8b which is coaxial with the circular tube portion 8a and whose inner and outer surfaces are spherical; and the groove 8b is mounted. The notch is facing the first laser light source 3; and the rear end portion of the mounting groove 8b is open, facing the second laser light source 4; the inner side of the notch of the mounting groove 8 is provided with two opposite axial directions An extended card slot 8c for latching at a top edge of the horizontally extending side 2ba of the second prism 2b; a vertical side 2bb of the second prism 2ba is disposed opposite the rear port of the circular tube portion 8a, visible, The prism holder 8 is disposed such that the mounting mode of the cemented lens 2 satisfies the design requirements of the dual photosynthetic optical path system, and the outer surface thereof is a spherical mounting groove 8b for the purpose of cooperating with the spherical inner surface of the hollow ball head adjusting portion 7c, and A pitch adjustment screw 9 for adjusting the pitch angle of the circular tube portion 8a is provided in the cylindrical portion 7b shown in Fig. 4, and the pitch adjustment screw 9 is four, and is uniformly disposed in the circumferential direction behind the cylindrical portion 7b. The annular step 7e of the outer surface of the end; the bottom of the hollow ball head adjusting portion 7c is opened for adjustment The two horizontal adjustment screws 11 of the mounting groove 8b are disposed at opposite angles, and the bottoms of the mounting grooves 8b shown in FIG. 6 and FIG. 7 are provided with two grooves 8d which are symmetric about the line, and are formed at the center line. An axial arc-shaped baffle 8e is provided such that the two oppositely disposed horizontal adjustments are respectively pushed on both sides of the axial arc-shaped baffle 8e to achieve adjustment of the left-right deflection of the mounting groove 8.

In summary, the dual-optical optical path system provided by the above embodiments and the laser sight or other illumination source including the optical path system, such as a flashlight, ensure a good synthesis of the double light through the dual-integrated optical path system. Degree, simplifies the mechanical structure of double photosynthetic one, and greatly improves the precision of debugging due to the good overlapping of the optical paths, and makes the debugging simple and easy, and it is easy to change the light source device such as sight or flashlight by adjusting the screw and adjusting the spring. The direction of the illumination is well adjusted.

Claims

A dual photosynthetic optical path system comprising a first laser source (3) and a second laser source (4), further comprising: a bottom surface of the first prism (2a) and the second prism (2b) being glued in parallel with each other Gluing prism together (2);

a semi-transparent film is plated on the bottom surface of the second prism (2b);

The first prism (2a) and the second prism (2b) are both right angle prisms;

The emitted light of the first laser light source (3) is perpendicularly incident on a horizontally extending side surface (2ba) of the second prism (2b);

The outgoing light of the second laser light source (4) is incident perpendicularly onto the first vertical side (2aa) of the first prism (2a).
The dual-photosynthetic optical path system according to claim 1, characterized in that the second vertical side (2bb) of the second prism (2b) is provided with a focusing lens or a focusing lens group (1) on the outgoing light path.
A laser sight comprising the dual photosynthetic optical path system of claim 1 or 2, comprising a housing (10) having a light exit aperture, characterized by: said first laser source (3) and said second laser source (4) being mounted in the casing (10) and respectively disposed in mutually perpendicular directions such that the outgoing lights of the first laser source (3) and the second laser source (4) are perpendicular and intersect each other, And passing through the cementing prism (2) and exiting through the housing (10) through the light exiting channel (5).
The laser sight according to claim 2, wherein an inner casing (7) is disposed in the casing (10), and the inner casing (7) includes a focusing lens or a focusing lens group ( The optical hole portion (7a) of 1) and the outer surface communicating with the cylindrical portion (7b) are spherical hollow ball head adjusting portions (7c);

The light hole portion (7a) is installed in the light exit hole (5), and a vertical horizontal screw hole (10a) extending inward from the outer casing (10) is formed on the peripheral wall of the light exit hole (5) and a vertical screw hole (10b), on the inner wall of the peripheral wall corresponding to the horizontal screw hole (10a) and the vertical screw hole (10b) respectively provided with a blind hole for the adjustment spring (6);

An end mounting end of the hollow ball head adjusting portion (7c) is provided with an end mounting hole for mounting the second laser light source (4); the top of the hollow ball head adjusting portion (7c) is provided with the mounting portion a top mounting hole (15) of a laser source (3);

The cementing prism (2) is mounted on a prism holder (8) placed in the hollow ball head adjusting portion (7c).
A laser sight according to claim 4, wherein said prism holder (8) has a circular tube portion (8a) having a front end placed in said cylindrical portion (7b) and a circular tube portion (8a) ) an integral and coaxial mounting groove (8b) having a spherical inner and outer surface;

The slot of the mounting slot (8b) is opposite to the first laser source (3); and the rear end of the mounting slot (8b) is open, facing the second laser source (4);

The inside of the top of the notch of the mounting groove (8) is provided with two axially extending slots (8c) for locking against the horizontally extending side of the second prism (2b) (2ba) At the top edge of the ;

a second vertical side (2bb) of the second prism (2ba) is disposed opposite the rear port of the circular tube portion (8a);

The inner surface of the hollow ball head adjusting portion (7c) is a spherical surface;

a pitch adjustment screw (9) for adjusting a pitch angle of the round pipe portion (8a) is provided on the cylindrical portion (7b), and the pitch adjustment screws (9) are four, and are uniformly disposed in the circumferential direction. An annular step (7e) of the outer surface of the rear end portion of the cylindrical portion (7b);

The bottom of the hollow ball head adjusting portion (7c) is provided with two horizontal adjusting screws (11) for adjusting the relative arrangement of the left and right angles of the mounting groove (8b);

The bottom of the mounting groove (8b) is provided with two grooves (8d) symmetrically about the line, and an axial arc-shaped baffle (8e) is formed at the center line so that the two oppositely disposed levels Adjustments are respectively pushed on both sides of the axial arc-shaped barrier (8e) to achieve adjustment of the left-right deflection of the mounting groove (8).