CN106680917B

CN106680917B - Composite prism for multifunctional telescope and binocular telescope optical system thereof

Info

Publication number: CN106680917B
Application number: CN201611207187.8A
Authority: CN
Inventors: 朱杰; 高明晓
Original assignee: Chongqing Hylon Co ltd
Current assignee: Chongqing Hylon Co ltd
Priority date: 2016-12-23
Filing date: 2016-12-23
Publication date: 2022-12-30
Anticipated expiration: 2036-12-23
Also published as: CN106680917A

Abstract

The invention discloses a composite prism for a multifunctional telescope and a binocular telescope optical system thereof. The composite prism comprises a first half pentaprism, a roof prism and a second half pentaprism, wherein the long right-angle surfaces of the first half pentaprism and the second half pentaprism are glued with the bottom surface of the roof prism, and the light incident surface and the light emergent surface of the roof prism are coplanar and parallel to the roof prism, so that the incident optical axis and the emergent optical axis of the composite prism are parallel. The binocular telescope optical path system comprises an objective lens, a composite prism, a dividing mirror and an eyepiece. Can have the functions of observation, aiming, laser emission receiving and displaying.

Description

Composite prism for multifunctional telescope and binocular telescope optical system thereof

Technical Field

The invention relates to the field of optical systems, in particular to a composite prism for a multifunctional telescope and a binocular telescope optical system thereof.

Background

Telescopes have become a popular fashion consumer product. However, the existing telescope only has the function of telescopic observation, and the common laser ranging telescope is used for monocular observation, which has the defect of inconvenient observation for users. A telescope is designed, so that the telescope not only has a binocular observation function, but also can rapidly measure the target distance and the target speed by emitting laser, can simultaneously or selectively measure the longitude and latitude, the azimuth angle, the elevation angle, the altitude, the levelness, the northbound azimuth and the like of the telescope, can directly display measured data in a visual field through a transmission Liquid Crystal (LCD) or an OLED or can display the measured data through OLED or LED projection, and can make up the regret. Among them is the optical system which is one of the technical difficulties.

Disclosure of Invention

In view of this, the invention provides a binocular optical system with functions of distance measurement, speed measurement and projection display, and a composite prism used in the system. The binocular telescope system not only has the binocular telescope and observation functions, but also can rapidly measure the target distance and the target speed by emitting laser, can directly display measured data in a view field through a transmission Liquid Crystal Display (LCD) or an OLED or display through OLED and LED projection, and adjusts the focal length and the interpupillary distance through a middle axis, and the visual degree is respectively adjusted by a left ocular and a right ocular.

In order to realize the purpose of the invention, the invention adopts the technical scheme that: a compound prism for multi-functional telescope, including first half pentaprism, roof prism and second half pentaprism, the long right-angle side of first half pentaprism and second half pentaprism all glues with the bottom surface of roof prism, and the light incident surface and the emergent face of roof prism are the coplanar, and are on a parallel with the roof arris of roof prism, make the incident optical axis and the emergent optical axis of compound prism parallel.

In view of the structure of the composite prism, the second half pentaprism can be formed by gluing a triangular prism and a wedge-shaped prism or an isosceles prism instead, one obtuse angle surface of the triangular prism is glued with the bottom surface of the ridge prism, the other obtuse angle surface of the triangular prism is glued with the wedge-shaped prism or the isosceles prism, and the rest structures are unchanged.

In the two structures, the two end faces of the roof prism may be non-light-transmitting faces not perpendicular to the incident optical axis of the composite prism, or light-transmitting faces perpendicular to the incident optical axis of the composite prism.

The binocular telescope optical system based on the composite prism adopts the following technical scheme: binocular telescope optical system, including objective, composite prism and eyepiece, light gets into composite prism's first half pentaprism through objective, after its inclined plane reflection, get into roof prism from first half pentaprism and roof prism's cemented surface, jet out by roof prism's bottom surface after roof prism's roof surface reflection, get into second half pentaprism, after second half pentaprism's inclined plane reflection, get into the eyepiece through second half pentaprism's another right angle face, follow the eyepiece outgoing again, observe through the eyepiece.

A dividing mirror made of flat glass or transmission type LCD or OLED can be added at the focal plane of the objective lens of the optical system of the binocular telescope, so that the optical system has the functions of aiming, measuring and information display.

Further, a light splitting film which reflects laser and transmits visible light is plated on the bonding surface of the first half pentaprism and the roof prism. A laser or a laser receiver is arranged on a light path vertical to the bevel edge of the first half-penta prism, or a light splitting film which reflects laser and transmits visible light is plated on the bonding surface of the triangular prism and the wedge-shaped prism or the isosceles prism, and the laser or the laser receiver is arranged on the light path vertical to the large reflection surface of the triangular prism, so that the laser or the laser receiver has the functions of laser ranging and speed measurement.

When two end faces of the roof prism are light-transmitting faces vertical to an incident optical axis of the composite prism, a light-splitting film which reflects laser and red light and transmits the rest visible light is plated on a bonding face of the triangular prism and the isosceles prism, and a display is arranged on a light path vertical to the end face of the roof prism, so that light emitted by the display passes through the two end faces of the roof prism, enters the isosceles prism through lens imaging and reflection by a reflector, is reflected by the light-splitting film on the bonding face of the isosceles prism and is emitted from the isosceles prism, and the display content of the display is projected onto a focal plane of an objective lens.

The composite prism of the multifunctional telescope and the optical system of the binocular telescope have the advantages that:

the composite prism has the advantages that all parts of the composite prism are glued into a whole, the optical transmittance is improved, and the stability of an optical path is kept.

Although all parts of the composite prism are glued into a whole, all parts can be flexibly changed according to needs, and the composite prism can be universally used for binocular optical systems with different objective apertures and multiplying powers, and can also enable the binocular optical systems to realize multiple functions or selectively realize different functions.

The incident angle of light on the light splitting surface of the composite prism is small (not more than 30 degrees), so that the polarization is small, and the plating difficulty of the light splitting film can be greatly reduced or the performance of the light splitting film can be improved.

And the display projection system and the composite prism are ingeniously combined, so that the occupied space is reduced, and the structure is compact.

Fifthly, a dividing mirror made of flat glass or transmission type LCD or OLED can be installed at the focal plane of the objective lens, and various numbers and patterns can be projected to the focal plane of the objective lens by a projection system to replace the dividing mirror, so that the transmittance of the optical system is improved. Especially, when the projection system replaces a transmissive LCD or OLED with lower transmittance, the transmittance improvement effect is more remarkable.

Drawings

FIG. 1 is a schematic view of an optical path system of embodiment 1;

FIG. 2 is a schematic view of an optical path system of embodiment 2;

FIG. 3 is a schematic view of an optical path system of embodiment 3;

FIG. 4 is a schematic view of an optical path system of embodiment 4;

FIG. 5 is a schematic view of an optical path system of embodiment 5;

FIG. 6 is a schematic view of an optical path system of embodiment 6;

fig. 7 is a schematic view of an optical path system of embodiment 7.

Detailed Description

The invention applies a uniquely designed composite prism in the optical system of the multifunctional telescope, which is marked as a HYLON prism in the invention, and the HYLON prism is a glue body of several prisms. The main prism is a roof prism. The incident surface and the emergent surface of the roof prism are the same plane and parallel to the roof ridge, and are equivalent to a right-angle prism when the optical axis is vertical to the incident and emergent surfaces, so that the optical axis is in a non-vertical state with the incident and emergent surfaces in application. The two end faces of the composite prism can be non-light-transmitting faces which are not perpendicular to the incident light axis of the composite prism, and can also be light-transmitting faces which are perpendicular to the incident face. The HYLON prism has six specific expression forms, which are HYLON-A, HYLON-A1, HYLON-A2, HYLON-B1 and HYLON-B2. The telescope optical systems designed by adopting different HYLON prisms have different functions, and the specific shapes and the corresponding optical systems are as follows:

example 1, HYLON-A prism and examples of applications

The HYLON-A prism is formed by gluing A first half pentaprism 2, A roof prism 3 and A second half pentaprism 4, and is shown in figure 1. The objective lens 1, the HYLON-A prism and the ocular lens 6 form A binocular telescope optical system. The addition of the dividing mirror 5 in one of the lens barrels has a measuring or aiming function corresponding to different divisions.

Example 2, HYLON-A1 prism and application example

In this embodiment, the HYLON-A1 prism is formed by gluing a first half pentaprism 2, a roof prism 3 and a second half pentaprism 4. It differs from the HYLON-A prism in that: the long right-angle surface of the half pentaprism 2 is plated with a light splitting film which reflects laser and transmits visible light. See fig. 2. The objective lens 1, the HYLON-A1 prism, the spectroscope 5 and the ocular lens 6 form a telescopic optical system with functions of aiming and binocular observation. The laser 7, the laser receiver 9, the lens 8, the prism HYLON-A1 and the objective lens 1 respectively form a laser emitting system and a laser receiving system. The four systems form a binocular laser ranging telescope as shown in figure 2. The measured laser signal is converted into data information by a signal processing circuit, and then displayed in a telescope field by a divider 5 formed by a transmission Liquid Crystal Display (LCD) or an OLED.

Example 3, HYLON-A2 prism and application example

In this embodiment, the HYLON-A2 prism is formed by gluing four pieces of a first half pentaprism 2, a roof prism 3, a triangular prism 10 and a wedge prism 11. The hybrid optical fiber is different from the HYLON-A in that the second half pentaprism is formed by gluing A triangular prism 10 and A wedge-shaped prism 11, and A light splitting film which reflects laser and transmits visible light is plated on the gluing surface. See fig. 3. The objective lens 1, the HYLON-A2 prism, the divider 5 and the ocular 6 form a telescopic optical system with the functions of aiming and binocular observation. The laser 7 and the laser receiver 9 respectively form a laser emitting system and a laser receiving system with the HYLON-A2 prism and the objective lens 1. The four systems form a binocular laser ranging telescope, as shown in figure 3. The measured laser signal is converted into data information by a signal processing circuit, and then displayed in a telescope field by a divider 5 formed by a transmission Liquid Crystal Display (LCD) or an OLED.

Example 4, HYLON-B prism and application example

In this embodiment, the HYLON-B prism is formed by four pieces of a first half pentaprism 2, a roof prism 3, a triangular prism 10 and an isosceles prism 12 by gluing. The bonding surface of the triangular prism 10 and the isosceles prism 12 is plated with a light splitting film which reflects red light and transmits the rest visible light. Two end faces P1 and P2 of the roof prism 3 are light-transmitting faces and are perpendicular to an incident light axis of the composite prism to form a light-transmitting flat plate. See fig. 4. The objective lens 1, the HYLON-B prism and the eyepiece 6 form a binocular optical system. The projection system is composed of a display 14, a roof prism 3, a lens 15, a reflecting mirror 13, an isosceles prism 12 and a triangular prism 10. The dividing mirror 5 is added in one lens cone, which can have the measuring or aiming function corresponding to different dividing, and the projection system can project the pattern displayed by the display 14 to the focal plane position of the objective lens to replace the dividing mirror 5 to realize the dividing mirror function. See fig. 4.

Example 5, HYLON-B1 prism and application example

In this embodiment, the HYLON-B1 prism is formed by gluing four pieces, namely, a first half pentaprism 2, a roof prism 3, a triangular prism 10 and an isosceles prism 12, and is different from the HYLON-B prism in that: the bonding surface of the first half pentaprism 2 is coated with a light splitting film which reflects laser and transmits visible light, as shown in fig. 5. The objective lens 1, the HYLON-B1 prism, the divider 5 and the ocular 6 form a telescopic optical system with the functions of aiming and binocular observation. The laser 7 and the laser receiver 9 respectively form a laser emitting system and a laser receiving system with the lens 8, the prism HYLON-B1 and the objective lens 1. The four systems form a binocular laser ranging telescope, as shown in figure 5. The measured laser signal is converted into data information by a signal processing circuit, and then projected onto the focal plane of the objective lens 1 by a projection system consisting of a display 14, a HYLON-B1 prism, a lens 15 and a reflector 13, and displayed in the field of view of the telescope.

Example 6, HYLON-B2 prism and application example

In this embodiment, the HYLON-B2 prism is formed by gluing four pieces, namely, a first half pentaprism 2, a roof prism 3, a triangular prism 10 and an isosceles prism 12, and is different from the HYLON-B prism in that: the bonding surface of the triangular prism 10 and the isosceles prism 12 is plated with a light splitting film which reflects laser light and red light and transmits the rest visible light. See fig. 6. The objective lens 1, the HYLON-B2 prism, the divider 5 and the ocular 6 form a telescopic optical system with the functions of aiming and binocular observation. The laser 7, the laser receiver 9, the HYLON-B2 prism and the objective lens 1 respectively form a laser emitting system and a laser receiving system. The four systems form a binocular laser ranging telescope, which is shown in figure 6. The measured laser signal is converted into data information through a signal processing circuit, and then the data information is projected onto the focal plane of the objective lens 1 through a projection system consisting of a display 14, a HYLON-B2 prism, a lens 15 and a reflector 13 and is displayed in the field of view of a telescope.

Example 7, HYLON prism and application example

In this embodiment, the objective lens 1, the HYLON prism, the spectroscope 5, and the eyepiece 6 constitute a telescopic optical system having sighting and observation functions. The laser 7 (or the laser receiver 9), the HYLON prism and the objective lens 1 form a laser emitting system (or a laser receiving system); the laser receiver 9 (or laser 7) is not combined with the HYLON prism and objective 1, but forms a laser receiving system (or laser emitting system) with the objective 16, which three systems form a monocular laser ranging telescope, see fig. 7. The measured laser signal is converted into data information by a signal processing circuit, and then displayed in a telescope field by a divider 5 made of LCD or OLED;

or a projection system composed of a display 14, a HYLON prism, a lens 15 and a reflector 13 projects the projection image onto the focal plane of the objective lens 1, and the projection image is displayed in the field of view of the telescope.

Claims

1. A compound prism for multi-functional telescope its characterized in that: the roof prism comprises a first half pentaprism (2), a roof prism (3) and a second half pentaprism (4), wherein the long right-angle surfaces of the first half pentaprism (2) and the second half pentaprism (4) are glued with the bottom surface of the roof prism (3); the light incident surface and the light emergent surface of the roof prism (3) are the same plane and are parallel to the roof ridge edge of the roof prism (3), so that the incident optical axis and the emergent optical axis of the composite prism are parallel; and a light splitting film which reflects laser and transmits visible light is plated on the long right-angle surface of the first half pentaprism (2).

2. A compound prism for multi-functional telescope its characterized in that: including first half pentaprism (2), roof prism (3), triangle-shaped prism (10) and wedge prism (11), a obtuse angle face and roof prism (3) bottom surface veneer of triangle-shaped prism (10), another obtuse angle face and wedge prism (11) veneer, triangle-shaped prism (10) and wedge prism (11) veneer have plated reflection laser and have transmitted the beam splitting membrane of visible light.

3. A compound prism for multi-functional telescope its characterized in that: the device comprises a first half pentaprism (2), a roof prism (3), a triangular prism (10) and an isosceles prism (12); two end faces of the ridge prism (3) are light transmitting faces and are perpendicular to an incident light axis of the composite prism, one obtuse angle face of the triangular prism (10) is glued with the bottom face of the ridge prism (3), and the other obtuse angle face of the triangular prism is glued with the isosceles prism (12); the bonding surface of the triangular prism (10) and the isosceles prism (12) is plated with a light splitting film which reflects red light and transmits the rest visible light.

4. The compound prism for a multifunctional telescope according to claim 3, wherein: and a light splitting film which reflects laser and transmits visible light is plated on the long right-angle surface of the first half pentaprism (2).

5. The compound prism for a multifunctional telescope according to claim 3, wherein: and the bonding surfaces of the triangular prism (10) and the isosceles prism (12) are coated with a light splitting film which reflects laser light and red light and transmits the rest visible light.

6. A binocular optical system, characterized in that: the optical fiber laser imaging device comprises an objective lens (1), a composite prism as claimed in claim 1, a divider mirror (5) and an ocular lens (6), wherein the divider mirror (5) is a carved aiming or measuring dividing glass flat plate, or is a transmission type LCD or OLED, light enters a first half-pentaprism (2) through the objective lens (1), enters a roof prism (3) from a gluing surface of the first half-pentaprism (2) and the roof prism (3) after being reflected by an inclined surface of the first half-pentaprism (2), enters a second half-pentaprism (4) from a bottom surface of the roof prism (3) after being reflected by a roof surface of the roof prism (3), is reflected by an inclined surface of the second half-pentaprism (4), is emitted from the other right angle surface of the second half-pentaprism (4), images are formed on the divider mirror (5), and is observed and aimed through the ocular lens (6).

7. The binocular optical system of claim 6, wherein: the long right-angle surface of the first half pentaprism (2) is plated with a light splitting film which reflects laser and transmits visible light, and a laser (7) or a laser receiver (9) is arranged on a light path which is vertical to the inclined surface of the first half pentaprism (2).

8. A binocular optical system, characterized in that: the optical fiber laser imaging device comprises an objective lens (1), a composite prism as claimed in claim 2, a divider mirror (5) and an ocular lens (6), wherein the divider mirror (5) is a glass flat plate for carving aiming or measuring division, or is a transmission type LCD or OLED, light enters a first half-pentaprism (2) through the objective lens (1), after being reflected by an inclined plane of the first half-pentaprism (2), enters a roof prism (3) from a bonding surface of the first half-pentaprism (2) and the roof prism (3), after being reflected by a roof surface of the roof prism (3), enters a triangular prism (10) from a bottom surface of the roof prism (3), after being reflected by a reflecting surface of the triangular prism (10), is emitted from a right-angle surface of a wedge-shaped prism (11) perpendicular to an incident optical axis of the composite prism, images a scene on the divider mirror (5), and is observed and aimed through the ocular lens (6).

9. The binocular optical system of claim 8, wherein: the bonding surface of the triangular prism (10) and the wedge-shaped prism (11) is plated with a light splitting film which reflects laser and transmits visible light, and a laser (7) or a laser receiver (9) is arranged on a light path which is vertical to the reflecting surface of the triangular prism (10).

10. A binocular optical system, characterized in that: the optical fiber laser imaging device comprises an objective lens (1), a composite prism as claimed in claim 3, a dividing mirror (5) and an ocular lens (6), wherein the dividing mirror (5) is a glass flat plate for carving aiming or measuring division, or is a transmission type LCD or OLED, light enters a first half-pentaprism (2) through the objective lens (1), enters a roof prism (3) from a gluing surface of the first half-pentaprism (2) and the roof prism (3) after being reflected by an inclined surface of the first half-pentaprism (2), enters a triangular prism (10) from a bottom surface of the roof prism (3) after being reflected by a roof surface of the roof prism (3), is reflected by a reflecting surface of the triangular prism (10), is emitted from an end surface of the isosceles prism (12) perpendicular to an incident optical axis of the composite prism, images of a scene on the dividing mirror (5), and is observed and aimed through the ocular lens (6).

11. The binocular optical system of claim 10, wherein: two end faces of the roof prism (3) are light-transmitting faces perpendicular to an incident optical axis of the composite prism, light-splitting films which reflect red light and transmit other visible light are plated on the bonding faces of the triangular prism (10) and the isosceles prism (12), a display (14) is arranged on a light path perpendicular to the two end faces of the roof prism (3), light emitted by the display (14) penetrates through the two end faces of the roof prism (3), is imaged through a lens (15) and reflected into the isosceles prism (12) through a reflector (13), then is emitted from the end face of the isosceles prism (12) perpendicular to the incident optical axis of the composite prism, and the content displayed by the display (14) is imaged on a focal plane of the objective lens (1).

12. The binocular optical system of claim 11, wherein: the long right-angle surface of the first half pentaprism (2) is plated with a light splitting film which reflects laser and transmits visible light, and a laser (7) or a laser receiver (9) is arranged on a light path which is vertical to the inclined surface of the first half pentaprism (2).

13. The binocular optical system of claim 11, wherein: the bonding surface of the triangular prism (10) and the isosceles prism (12) is plated with a light splitting film which reflects laser and red light and transmits the rest visible light, and a laser (7) or a laser receiver (9) is arranged on a light path which is vertical to the reflecting surface of the triangular prism (10).