CN111487775A

CN111487775A - Binocular optical display system for multiplexing light source folding light path and wearable equipment

Info

Publication number: CN111487775A
Application number: CN202010432121.9A
Authority: CN
Inventors: 周莹; 王锐
Original assignee: Ningbo Hongyi Photoelectric Technology Co ltd
Current assignee: Ningbo Hongyi Photoelectric Technology Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-08-04

Abstract

The invention provides a binocular optical display system and wearable equipment for a multiplexed light source folding light path, and belongs to the technical field of AR (augmented reality), wherein the binocular optical display system for the multiplexed light source folding light path comprises a display, a light splitting module, a first optical module, a second optical module, a third optical module and a fourth optical module; the light splitting module is arranged on a light emitting path of the display and processes light rays incident from the display to obtain first emergent light and second emergent light; the first optical module is arranged on the light path of the first emergent light, and the second optical module is arranged on the light path of the first optical module; the third optical module is arranged on the light path of the second emergent light, and the fourth optical module is arranged on the light path of the third optical module. The liquid crystal display has the advantages of small volume, good imaging quality, no display light leakage and good confidentiality. This wearable equipment, it is convenient that it dresses, and the commonality is good, can adapt to near-sighted user, has promoted user's wearing greatly and has experienced.

Description

Binocular optical display system for multiplexing light source folding light path and wearable equipment

Technical Field

The invention belongs to the technical field of AR, and particularly relates to a binocular optical display system with a multiplexed light source folding light path and wearable equipment.

Background

Augmented Reality (AR) is a technique that projects an image in front of the human eye through a transmission device and superimposes a real scene with a virtual scene. Through the mode, brand new visual experience can be brought to people, and a new application field can be enhanced or created. The transmissive optical display system is one of the core technologies in the field of augmented reality. Wearable devices currently using enhanced display technology are widely used in the fields of gaming, retail, education, industry, medical care, and the like.

At present, the transmission optical display technology can be classified into a geometric optical scheme: the optical waveguide system comprises a Birdbath, a common reflection prism, a free-form surface prism and the like, and an array optical waveguide and a diffraction optical waveguide which mainly adopt diffraction optics. The optical system mainly adopts a geometrical optics scheme, has the characteristics of mature technology, convenient device processing, small requirement on assembly tolerance and the like compared with a diffraction scheme, is popular with many manufacturers such as Google, Association, Microsoft and the like at present, but the scheme is limited by the requirements on the overall size, weight/price of a light source device and an AR system, generally has the problem that the size, price, view field, performance and observation distance cannot be considered, and the display content is easy to leak and has poor confidentiality; for a myopic user, a myopic lens is additionally added to be matched with the optical system for use. Both of these disadvantages degrade the use experience of the augmented reality wearable device.

Disclosure of Invention

The invention aims to provide a binocular optical display system of a folding light path of a multiplexing light source, which has the advantages of low cost, small volume, light weight, good imaging quality, no display light leakage and good confidentiality.

Another object of an embodiment of the present invention is to provide a wearable device, which has low cost, small size, light weight, good imaging quality, and convenient wearing.

The embodiment of the invention is realized by the following steps:

the embodiment of the invention provides a binocular optical display system for multiplexing a light source folding light path, which comprises a display, a light splitting module, a first optical module, a second optical module, a third optical module and a fourth optical module, wherein the light splitting module is arranged on the display;

the light splitting module is arranged on a light emitting path of the display and processes light rays incident from the display to obtain first emergent light and second emergent light;

the first optical module is arranged on the light path of the first emergent light, and the second optical module is arranged on the light path of the first optical module;

the third optical module is arranged on the light path of the second emergent light, and the fourth optical module is arranged on the light path of the third optical module.

Further, the beam split module includes first optical lens, first speculum and second mirror, first optical lens set up in the light-emitting light path of display, part the light of display is followed first optical lens transmits away and forms first transmitted light, first speculum set up in the light path of first transmitted light and will first transmitted light reflection forms first emergent light, part the light of display is followed first optical lens reflection forms first reverberation, the second mirror set up in the light path of first reverberation and will first reverberation reflection forms the second emergent light.

Further, the first optical lens includes a first optical substrate, a first polarization reflective film, a first compensation mirror, and a first antireflection optical film, the first polarization reflective film is disposed on a side of the first optical substrate away from the display, the first compensation mirror is disposed on a side of the first polarization reflective film away from the first optical substrate, and the first antireflection optical film is disposed on both a side of the first compensation mirror away from the first polarization reflective film and a side of the first optical substrate away from the first polarization reflective film.

Further, a first transmission mirror is arranged on a light path between the display and the first optical lens.

Further, first optical module includes second optical lens, eighth optical lens and third speculum, eighth optical lens set up in the light path of first emergent light, second optical lens set up in the light path of the transmitted light of eighth optical lens, the third speculum set up in the reflected light path of second optical lens, the light that the third speculum reflected gets into form the third emergent light after the transmission of second optical lens, second optical module set up in the light path of third emergent light.

Further, the second optical lens comprises a second optical substrate, a second polarization reflection film, a second phase retardation film a, a second phase retardation film b and a second antireflection optical film;

the second polarization reflection film is arranged on one side of the second optical substrate far away from the light splitting module, the second phase retardation film a is arranged on one side of the second polarization reflection film far away from the second optical substrate, the second phase retardation film b is arranged on one side of the second optical substrate far away from the second polarization reflection film, and the second antireflection optical film is arranged on one side of the second phase retardation film b far away from the second optical substrate and one side of the second phase retardation film a far away from the second polarization reflection film;

or the second phase retardation film a is arranged on one side of the second optical substrate close to the spectral module, the second polarization reflection film is arranged on one side of the second phase retardation film a far away from the second optical substrate, the second phase retardation film b is arranged on one side of the second polarization reflection film far away from the second optical substrate, and the second antireflection optical film is arranged on one side of the second optical substrate far away from the second phase retardation film a and one side of the second phase retardation film b far away from the second phase retardation film a;

or the second polarization reflection film is arranged on one side of the second optical substrate close to the light splitting module, the second phase retardation film b is arranged on one side of the second polarization reflection film far away from the second optical substrate, the second phase retardation film a is arranged on one side of the second optical substrate far away from the second polarization reflection film, and the second antireflection optical film is arranged on one side of the second phase retardation film b far away from the second optical substrate and one side of the second phase retardation film a far away from the second optical substrate;

or the second phase retardation film b, the second polarization reflection film and the second phase retardation film a are sequentially arranged on one side of the second optical substrate far away from the light splitting module, and the second antireflection optical film is arranged on one side of the second phase retardation film a far away from the second optical substrate and one side of the second optical substrate far away from the second phase retardation film b.

Furthermore, the eighth optical lens includes an eighth optical substrate, an eighth phase retardation film, and an eighth antireflection optical film, where the eighth phase retardation film is disposed on one side of the eighth optical substrate, and the eighth antireflection optical film is disposed on both one side of the eighth optical substrate away from the eighth phase retardation film and one side of the eighth phase retardation film away from the eighth optical substrate.

Optionally, first optical module includes second optical lens and third speculum, second optical lens set up in the light path of first emergent light, the third speculum set up in the transmitted light path of second optical lens, the light that the third speculum reflected gets into second optical lens is reflected once more and forms the third emergent light, the beam splitting module with light path between the second optical lens is equipped with the second transmission mirror, second optical module set up in the light path of third emergent light.

Optionally, the second optical lens includes a second optical substrate, a second polarizing reflective film, a second phase retardation film a, and a second antireflection optical film;

the second polarization reflection film is arranged on one side of the second optical substrate far away from the light splitting module, the second phase retardation film a is arranged on one side of the second polarization reflection film far away from the second optical substrate, and the second antireflection optical film is arranged on one side of the second optical substrate far away from the second polarization reflection film and one side of the second phase retardation film a far away from the second polarization reflection film;

or the second phase retardation film a is arranged on one side of the second optical substrate close to the spectral module, the second polarization reflection film is arranged on one side of the second phase retardation film a far away from the second optical substrate, and the second antireflection optical film is arranged on one side of the second optical substrate far away from the second phase retardation film a and one side of the second phase retardation film a far away from the second optical substrate;

or the second polarization reflection film is arranged on one side of the second optical substrate close to the light splitting module, the second phase retardation film a is arranged on one side of the second optical substrate far away from the second polarization reflection film, and the second antireflection optical film is arranged on one side of the second polarization reflection film far away from the second optical substrate and one side of the second phase retardation film a far away from the second optical substrate.

Optionally, a third transmission mirror is disposed on a light path between the second optical lens and the third reflection mirror, and/or a fourth transmission mirror is disposed on a light path between the second optical lens and the second optical module.

Furthermore, the second optical module comprises a third optical lens and a fourth optical lens, the third optical lens is arranged on the light emitting path of the first optical module, and the fourth optical lens is arranged on the reflected light path of the third optical lens;

the third optical lens comprises a third optical substrate, a third absorption type linear polarizing film, a third polarizing reflection film, a third phase retardation film and a third antireflection optical film;

the third absorption type linear polarization film is arranged on one side, close to the first optical module, of the third optical substrate, the third polarization reflection film is arranged on one side, far away from the third optical substrate, of the third absorption type linear polarization film, the third phase retardation film is arranged on one side, far away from the third optical substrate, of the third polarization reflection film, and the third antireflection optical film is arranged on one side, far away from the third polarization reflection film, of the third phase retardation film and one side, far away from the third absorption type linear polarization film, of the third optical substrate;

or the third absorption type linear polarization film is arranged on one side of the third optical substrate far away from the first optical module, the third polarization reflection film is arranged on one side of the third optical substrate far away from the third absorption type linear polarization film, the third phase retardation film is arranged on one side of the third polarization reflection film far away from the third optical substrate, and the third antireflection optical film is arranged on one side of the third phase retardation film far away from the third optical substrate and one side of the third absorption type linear polarization film far away from the third optical substrate;

or the third polarizing reflective film is disposed on a side of the third optical substrate away from the first optical module, the third absorbing type linear polarizing film is disposed on a side of the third polarizing reflective film away from the third optical substrate, the third phase retardation film is disposed on a side of the third optical substrate away from the third polarizing reflective film, and both a side of the third phase retardation film away from the third optical substrate and a side of the third absorbing type linear polarizing film away from the third optical substrate are provided with the third antireflection optical film;

or the third phase retardation film is disposed on a side of the third optical substrate away from the first optical module, the third polarization reflection film is disposed on a side of the third phase retardation film away from the third optical substrate, the third absorption type linear polarization film is disposed on a side of the third polarization reflection film away from the third optical substrate, and both a side of the third optical substrate away from the third phase retardation film and a side of the third absorption type linear polarization film away from the third optical substrate are provided with the third antireflection optical film.

Further, the fourth optical lens includes a fourth optical substrate, and a fourth compensating mirror, a fourth phase retardation film, a fourth line polarization reflective film and a fourth antireflection optical film which are sequentially disposed on a side of the fourth optical substrate away from the third optical lens, where a fourth partial transmission partial reflective film is further disposed on a side of the fourth optical substrate close to the third optical lens or between the fourth optical substrate and the fourth compensating mirror.

Furthermore, the third optical module comprises a fifth optical lens, a ninth optical lens and a fourth reflector, the ninth optical lens is arranged on the light path of the second emergent light, the fifth optical lens is arranged on the light path of the transmission light of the ninth optical lens, the fourth reflector is arranged on the light path of the reflection light of the fifth optical lens, the light reflected by the fourth reflector enters the fifth optical lens and then is transmitted out to form fourth emergent light, and the fourth optical module is arranged on the light path of the fourth emergent light;

the fifth optical lens comprises a fifth optical substrate, a fifth polarization reflection film, a fifth phase retardation film a, a fifth phase retardation film b and a fifth antireflection optical film;

the fifth polarization reflection film and the fifth phase retardation film a are sequentially arranged on one side, far away from the light splitting module, of the fifth optical substrate, the fifth phase retardation film b is arranged on one side, close to the light splitting module, of the fifth optical substrate, and the fifth antireflection optical film is arranged on one side, far away from the fifth optical substrate, of the fifth phase retardation film a and one side, far away from the fifth polarization reflection film, of the fifth phase retardation film b;

or the fifth phase retardation film b, the fifth polarization reflection film and the fifth phase retardation film a are sequentially arranged on one side of the fifth optical substrate far away from the light splitting module, and the fifth antireflection optical film is arranged on one side of the fifth optical substrate far away from the fifth phase retardation film b and one side of the fifth phase retardation film a far away from the fifth phase retardation film;

or the fifth polarization reflection film and the fifth phase retardation film b are sequentially arranged on one side of the fifth optical substrate close to the light splitting module, the fifth phase retardation film a is arranged on one side of the fifth optical substrate far away from the fifth polarization reflection film, and the fifth antireflection optical film is arranged on one side of the fifth phase retardation film a far away from the fifth optical substrate and one side of the fifth phase retardation film b far away from the fifth polarization reflection film;

or the fifth phase retardation film a, the fifth polarization reflection film and the fifth phase retardation film b are sequentially arranged on one side of the fifth optical substrate close to the light splitting module, and the fifth antireflection optical film is arranged on one side of the fifth optical substrate far away from the fifth phase retardation film a and one side of the fifth phase retardation film b far away from the fifth optical substrate.

Furthermore, the ninth optical lens includes a ninth optical substrate, a ninth phase retardation film, and a ninth antireflection optical film, where the ninth phase retardation film is disposed on one side of the ninth optical substrate, and the ninth antireflection optical film is disposed on both one side of the ninth optical substrate away from the ninth phase retardation film and one side of the ninth phase retardation film away from the ninth optical substrate.

Optionally, the third optical module includes a fifth optical lens and a fourth mirror, the fifth optical lens is disposed on the light path of the second outgoing light, the fourth mirror is disposed on the light path of the transmission light of the fifth optical lens, the light reflected by the fourth mirror enters the fifth optical lens and is reflected again to form a fourth outgoing light, a fifth transmission mirror is disposed on the light path between the light splitting module and the fifth optical lens, and the fourth optical module is disposed on the light path of the fourth outgoing light;

the fifth optical lens comprises a fifth optical substrate, a fifth polarization reflection film, a fifth phase retardation film a and a fifth antireflection optical film;

the fifth polarization reflection film is arranged on one side, far away from the light splitting module, of the fifth optical substrate, the fifth phase retardation film a is arranged on one side, far away from the fifth optical substrate, of the fifth polarization reflection film, and the fifth antireflection optical film is arranged on one side, far away from the fifth polarization reflection film, of the fifth optical substrate and one side, far away from the fifth polarization reflection film, of the fifth phase retardation film a;

or the fifth phase retardation film a is arranged on one side of the fifth optical substrate close to the light splitting module, the fifth polarization reflection film is arranged on one side of the fifth phase retardation film a far away from the fifth optical substrate, and the fifth antireflection optical film is arranged on one side of the fifth optical substrate far away from the fifth phase retardation film a and one side of the fifth polarization reflection film far away from the fifth phase retardation film a;

or the fifth polarization reflection film is arranged on one side of the fifth optical substrate close to the light splitting module, the fifth phase retardation film a is arranged on one side of the fifth optical substrate far away from the fifth polarization reflection film, and the fifth antireflection optical film is arranged on one side of the fifth polarization reflection film far away from the fifth optical substrate and one side of the fifth phase retardation film a far away from the fifth optical substrate.

Optionally, a sixth transmission mirror is disposed on a light path between the fifth optical lens and the fourth reflection mirror, and/or a seventh transmission mirror is disposed on a light path between the fifth optical lens and the fourth optical module.

Furthermore, the fourth optical module includes a sixth optical lens and a seventh optical lens, the sixth optical lens is disposed on the light path of the fourth emergent light, and the seventh optical lens is disposed on the light path of the reflected light of the sixth optical lens.

Further, the sixth optical lens comprises a sixth optical substrate, a sixth absorptive type linear polarizing film, a sixth polarizing reflective film, a sixth phase retardation film and a sixth antireflection optical film;

the sixth absorption type linear polarization film, the sixth polarization reflection film and the sixth phase retardation film are sequentially arranged on one side of the sixth optical substrate close to the third optical module, and the sixth antireflection optical film is arranged on one side of the sixth optical substrate far away from the third optical module and one side of the sixth phase retardation film far away from the sixth polarization reflection film;

or the sixth absorbing type linear polarization film is arranged on one side of the sixth optical substrate far away from the third optical module, the sixth polarizing reflection film and the sixth phase retardation film are sequentially arranged on one side of the sixth optical substrate far away from the sixth absorbing type linear polarization film, and the sixth antireflection optical film is arranged on both one side of the sixth absorbing type linear polarization film far away from the sixth optical substrate and one side of the sixth phase retardation film far away from the sixth polarizing reflection film;

or the sixth polarizing reflective film and the sixth absorbing type linear polarizing film are sequentially arranged on one side of the sixth optical substrate far away from the third optical module, the sixth phase retardation film is arranged on one side of the sixth optical substrate far away from the sixth polarizing reflective film, and the sixth antireflection optical film is arranged on both one side of the sixth absorbing type linear polarizing film far away from the sixth optical substrate and one side of the sixth phase retardation film far away from the sixth polarizing reflective film;

or the sixth phase retardation film, the sixth polarization reflection film and the sixth absorption type linear polarization film are sequentially arranged on one side of the sixth optical substrate far away from the third optical module, and the sixth antireflection optical film is arranged on one side of the sixth optical substrate far away from the sixth phase retardation film and one side of the sixth absorption type linear polarization film far away from the sixth optical substrate.

Further, the seventh optical lens includes a seventh optical substrate, and a seventh compensating mirror, a seventh phase retardation film, a seventh linear polarization reflective film and a seventh antireflection optical film which are sequentially disposed on a side of the seventh optical substrate away from the sixth optical lens, where a seventh partial transmission partial reflective film is further disposed on a side of the seventh optical substrate close to the sixth optical lens or between the seventh optical substrate and the seventh compensating mirror.

The embodiment of the invention also provides wearable equipment which comprises a wearing part and the binocular optical display system for multiplexing the light source folding light path, wherein the binocular optical display system for multiplexing the light source folding light path is arranged on the wearing part.

The invention has the beneficial effects that:

the binocular optical display system with the multiplexed light source and the folded light path has the advantages of small volume, light weight, large field angle, good imaging quality, small aberration, no display light leakage and good confidentiality, and can eliminate stray light generated by the external environment.

The wearable device provided by the embodiment of the invention has the advantages of small volume, light weight, large field angle, good imaging quality, small aberration, convenience in wearing and good universality, can adapt to a myopic user through focusing, can see a virtual world without wearing myopic glasses, and greatly improves the wearing experience of the user.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of an optical architecture of a binocular optical display system with a folded optical path of a multiplexing light source according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a first optical lens;

fig. 3 is a schematic structural diagram of a second optical lens according to the first embodiment;

FIG. 4 is a schematic structural diagram of an eighth optical lens;

FIG. 5 is a schematic structural diagram of a third optical lens;

FIG. 6 is a schematic structural diagram of a fourth optical lens;

fig. 7 is a schematic structural view of a five-optic lens according to the first embodiment;

FIG. 8 is a schematic structural diagram of a ninth optical lens;

FIG. 9 is a schematic structural diagram of a sixth optical lens;

FIG. 10 is a schematic structural diagram of a seventh optical lens;

fig. 11 is a schematic view of an optical architecture of a binocular optical display system with a folded optical path of a multiplexing light source according to a second embodiment of the present invention;

fig. 12 is a schematic structural view of a second optical lens according to a second embodiment;

fig. 13 is a schematic structural diagram of a fifth optical lens according to the second embodiment.

In the figure: 10-a first optical module; 11-a second optical lens; 111-a second optical substrate; 112-a second polarizing reflective film; 113-second phase retardation film a; 114-a second anti-reflective optical film; 115-second phase retardation film b; 12-a third mirror; 13-third outgoing light; 14-an eighth optical lens; 141-an eighth optical substrate; 142-an eighth phase retardation film; 143-eighth anti-reflection optical film; 15-a third transmission mirror; 16-a fourth transmission mirror; 17-a second transmission mirror; 18-a second optical lens; 181 — a second optical substrate; 182-a second polarizing reflective film; 183-second phase retardation film a; 184-a second anti-reflective optical film; 20-a second optical module; 21-a third optical lens; 211-a third optical substrate; 212-third absorbing type polarizing film; 213-a third polarizing reflective film; 214-a third phase retardation film; 215-third anti-reflective optical film; 22-a fourth optical lens; 221-a fourth optical substrate; 222-a fourth compensation mirror; 223-a fourth phase retardation film; 224-a fourth linear polarizing reflective film; 225-fourth anti-reflective optical film; 226-a fourth partially transmissive partially reflective film; 30-a third optical module; 31-a fifth optical lens; 311-a fifth optical substrate; 312-a fifth polarizing reflective film; 313-fifth phase retardation film a; 314-fifth anti-reflective optical film; 315-fifth retardation film b; 32-a fourth mirror; 33-fourth outgoing light; 34-a fifth transmission mirror; 35-sixth transmission mirror; 36-a seventh transmission mirror; 37-a fifth optical lens; 371 — a fifth optical substrate; 372-a fifth polarizing reflective film; 373 — fifth phase retardation film a; 374-fifth antireflection optical film; 38-a ninth optical lens; 381-a ninth optical substrate; 382-a ninth phase retardation film; 383-a ninth anti-reflective optical film; 40-a fourth optical module; 41-a sixth optical lens; 411 — a sixth optical substrate; 412-a sixth absorbing type polarizing film; 413-a sixth polarizing reflective film; 414-sixth phase retardation film; 415-sixth antireflection optical film; 42-a seventh optical lens; 421-a seventh optical substrate; 422-seventh compensation mirror; 423-seventh phase retardation film; 424-seventh linearly polarizing reflective film; 425-a seventh antireflective optical film; 426-a seventh partially transmissive partially reflective film; 50-a light splitting module; 51-a first optical lens; 511-a first optical substrate; 512-a first polarizing reflective film; 513 — a first compensation mirror; 514-a first anti-reflective optical film; 52-first mirror; 53-a second mirror; 54-a first transmission mirror; 55-first outgoing light; 56-second outgoing light; 60-display.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "first", "second", "third", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

Example 1

Referring to fig. 1, a binocular optical display system for multiplexing light paths of a light source includes a display 60, a beam splitting module 50, a first optical module 10, a second optical module 20, a third optical module 30, and a fourth optical module 40.

The display 60 mainly plays a role of emitting light, the display 60 can display 2D or 3D images or videos, the display 60 can be an O L ED display, a L CD display, a L COS display, a micro-L ED display, a micro-O L ED display or a mini-L ED display, and the like, which can be selected according to needs, in this embodiment, the display 60 is an O L ED display.

The beam splitting module 50 includes a first optical lens 51, a first reflector 52 and a second reflector 53.

The first optical lens 51 is disposed on a light emitting path of the display 60, a part of light of the display 60 is transmitted out from the first optical lens 51 to form first transmitted light, the first reflector 52 is disposed on a light path of the first transmitted light and reflects the first transmitted light to form first emitted light 55, a part of light of the display 60 is reflected from the first optical lens 51 to form first reflected light, and the second reflector 53 is disposed on a light path of the first reflected light and reflects the first reflected light to form second emitted light 56.

Referring to fig. 2, the first optical lens 51 includes a first optical substrate 511, a first polarization reflective film 512, a first compensation mirror 513 and a first antireflection optical film 514, the first polarization reflective film 512 is disposed on a side of the first optical substrate 511 away from the display 60, the first compensation mirror 513 is disposed on a side of the first polarization reflective film 512 away from the first optical substrate 511, and a side of the first compensation mirror 513 away from the first polarization reflective film 512 and a side of the first optical substrate 511 away from the first polarization reflective film 512 are both provided with the first antireflection optical film 514.

Both side surfaces of the first optical substrate 511 may be plane, spherical, aspherical, or free-form.

A first transmission mirror 54 may be further disposed on the optical path between the display 60 and the first optical lens 51, and the first transmission mirror 54 is used to reduce curvature of field, distortion and dispersion.

The first optical module 10 includes a second optical lens 11, an eighth optical lens 14 and a third reflector 12, the eighth optical lens 14 is disposed on the light path of the first emergent light 55, the second optical lens 11 is disposed on the light path of the transmitted light of the eighth optical lens 14, the third reflector 12 is disposed on the light path of the reflected light of the second optical lens 11, and the light reflected by the third reflector 12 enters the second optical lens 11 and then is transmitted out to form a third emergent light 13. The third reflector 12 is a total reflection mirror.

Referring to fig. 3, the second optical lens 11 includes a second optical substrate 111, a second polarizing reflective film 112, a second phase retardation film a113, a second phase retardation film b115, and a second antireflection optical film 114.

Both side surfaces of the second optical substrate 111 may be plane, spherical, aspherical, or free-form.

In this embodiment, the second polarization reflection film 112 is disposed on the side of the second optical substrate 111 away from the first reflection mirror 52, the second phase retardation film a113 is disposed on the side of the second polarization reflection film 112 away from the second optical substrate 111, the second phase retardation film b115 is disposed on the side of the second optical substrate 111 away from the second polarization reflection film 112, and the second antireflection optical film 114 is disposed on both the side of the second phase retardation film b115 away from the second optical substrate 111 and the side of the second phase retardation film a113 away from the second polarization reflection film 112.

Of course, in another embodiment, the second phase retardation film a113 may also be disposed on the side of the second optical substrate 111 close to the first reflective mirror 52, the second polarization reflective film 112 may be disposed on the side of the second phase retardation film a113 far from the second optical substrate 111, the second phase retardation film b115 may be disposed on the side of the second polarization reflective film 112 far from the second optical substrate 111, and the second antireflection optical film 114 may be disposed on both the side of the second optical substrate 111 far from the second phase retardation film a113 and the side of the second phase retardation film b115 far from the second phase retardation film a 113.

In still another embodiment, the second polarization reflection film 112 may be disposed on a side of the second optical substrate 111 close to the first reflection mirror 52, the second phase retardation film b115 may be disposed on a side of the second polarization reflection film 112 far from the second optical substrate 111, the second phase retardation film a113 may be disposed on a side of the second optical substrate 111 far from the second polarization reflection film 112, and the second antireflection optical film 114 may be disposed on a side of the second phase retardation film b115 far from the second optical substrate 111 and a side of the second phase retardation film a113 far from the second optical substrate 111.

In another embodiment, the second phase retardation film b115, the second polarization reflection film 112, and the second phase retardation film a113 are sequentially disposed on the side of the second optical substrate 111 away from the first reflection mirror 52, and a second antireflection optical film 114 is disposed on both the side of the second phase retardation film a113 away from the second optical substrate 111 and the side of the second optical substrate 111 away from the second phase retardation film b 115.

Referring to fig. 4, the eighth optical lens 14 includes an eighth optical substrate 141, an eighth phase retardation film 142, and an eighth antireflection optical film 143, the eighth phase retardation film 142 is disposed on one side of the eighth optical substrate 141, and the eighth antireflection optical film 143 is disposed on both a side of the eighth optical substrate 141 away from the eighth phase retardation film 142 and a side of the eighth phase retardation film 142 away from the eighth optical substrate 141.

A third transmission mirror 15 may be disposed on the light path between the second optical lens 11 and the third reflection mirror 12, the number of the third transmission mirrors 15 is one, two, or more, and when the number of the third transmission mirrors 15 is two or more, a plurality of the third transmission mirrors 15 are disposed side by side at intervals on the light path between the second optical lens 11 and the third reflection mirror 12; a fourth transmission mirror 16 may be disposed on the light path of the third outgoing light 13, the number of the fourth transmission mirrors 16 is one, two, or more, and when the number of the fourth transmission mirrors 16 is two or more, the plurality of fourth transmission mirrors 16 are disposed side by side at intervals on the light path of the third outgoing light 13.

The second optical module 20 includes a third optical lens 21 and a fourth optical lens 22, the third optical lens 21 is disposed on the light path of the third outgoing light 13, and the fourth optical lens 22 is disposed on the light path of the reflected light of the third optical lens 21.

Referring to fig. 5, third optical lens 21 includes a third optical substrate 211, a third absorptive type linear polarizing film 212, a third polarizing reflective film 213, a third phase retardation film 214, and a third antireflection optical film 215.

Both side surfaces of the third optical substrate 211 may be plane, spherical, aspherical, or free-form.

In this embodiment, the third absorbing type linear polarization film 212 is disposed on the side of the third optical substrate 211 close to the second optical lens 11, the third polarization reflection film 213 is disposed on the side of the third absorbing type linear polarization film 212 far from the third optical substrate 211, the third phase retardation film 214 is disposed on the side of the third polarization reflection film 213 far from the third optical substrate 211, and the third antireflection optical film 215 is disposed on both the side of the third phase retardation film 214 far from the third polarization reflection film 213 and the side of the third optical substrate 211 far from the third absorbing type linear polarization film 212.

Of course, in another embodiment, the third absorbing type linear polarization film 212 may also be disposed on the side of the third optical substrate 211 away from the second optical lens 11, the third polarization reflection film 213 is disposed on the side of the third optical substrate 211 away from the third absorbing type linear polarization film 212, the third phase retardation film 214 is disposed on the side of the third polarization reflection film 213 away from the third optical substrate 211, and the third antireflection optical film 215 is disposed on both the side of the third phase retardation film 214 away from the third optical substrate 211 and the side of the third absorbing type linear polarization film 212 away from the third optical substrate 211.

In yet another embodiment, the third polarizing reflective film 213 may also be disposed on the side of the third optical substrate 211 away from the second optical lens 11, the third absorptive type linear polarizing film 212 is disposed on the side of the third polarizing reflective film 213 away from the third optical substrate 211, the third phase retardation film 214 is disposed on the side of the third optical substrate 211 away from the third polarizing reflective film 213, and the third antireflection optical film 215 is disposed on both the side of the third phase retardation film 214 away from the third optical substrate 211 and the side of the third absorptive type linear polarizing film 212 away from the third optical substrate 211;

in yet another embodiment, the third phase retardation film 214 may also be disposed on a side of the third optical substrate 211 away from the second optical lens 11, the third polarization reflection film 213 is disposed on a side of the third phase retardation film 214 away from the third optical substrate 211, the third absorption type linear polarization film 212 is disposed on a side of the third polarization reflection film 213 away from the third optical substrate 211, and the third antireflection optical film 215 is disposed on a side of the third optical substrate 211 away from the third phase retardation film 214 and a side of the third absorption type linear polarization film 212 away from the third optical substrate 211.

Referring to fig. 6, the fourth optical lens 22 includes a fourth optical substrate 221, and a fourth compensating mirror 222, a fourth phase retardation film 223, a fourth line polarization reflective film 224 and a fourth antireflection optical film 225, which are sequentially disposed on a side of the fourth optical substrate 221 away from the third optical lens 21, and a fourth partial transmission partial reflective film 226 is disposed on a side of the fourth optical substrate 221 close to the third optical lens 21. Of course, the fourth partially transmissive partially reflective film 226 may also be disposed between the fourth optical substrate 221 and the fourth compensation mirror 222.

The third optical module 30 includes a fifth optical lens 31, a ninth optical lens 38 and a fourth reflective mirror 32, the ninth optical lens 38 is disposed on the light path of the second outgoing light 56, the fifth optical lens 31 is disposed on the transmission light path of the ninth optical lens 38, the fourth reflective mirror 32 is disposed on the reflection light path of the fifth optical lens 31, and the light reflected by the fourth reflective mirror 32 enters the fifth optical lens 31 and then is transmitted out to form a fourth outgoing light 33. The fourth mirror 32 is a total reflection mirror.

Referring to fig. 7, fifth optical lens 31 includes fifth optical substrate 311, fifth polarizing reflective film 312, fifth phase retardation film a313, fifth phase retardation film b315, and fifth antireflection optical film 314;

both side surfaces of the fifth optical substrate 311 may be plane, spherical, aspherical, or free-form.

In this embodiment, the fifth polarization reflective film 312 and the fifth phase retardation film a313 are sequentially disposed on the side of the fifth optical substrate 311 away from the light splitting module 50, the fifth phase retardation film b315 is disposed on the side of the fifth optical substrate 311 close to the light splitting module 50, and the fifth antireflection optical film 314 is disposed on both the side of the fifth phase retardation film a313 away from the fifth optical substrate 311 and the side of the fifth phase retardation film b315 away from the fifth polarization reflective film 312;

of course, in another embodiment, the fifth retardation film b315, the fifth polarization reflection film 312 and the fifth retardation film a313 may also be sequentially disposed on the side of the fifth optical substrate 311 away from the light splitting module 50, and the fifth antireflection optical film 314 is disposed on both the side of the fifth optical substrate 311 away from the fifth retardation film b315 and the side of the fifth retardation film a313 away from the fifth retardation film;

in another embodiment, the fifth polarization reflection film 312 and the fifth phase retardation film b315 may be sequentially disposed on the side of the fifth optical substrate 311 close to the light splitting module 50, the fifth phase retardation film a313 is disposed on the side of the fifth optical substrate 311 far from the fifth polarization reflection film 312, and the fifth antireflection optical film 314 is disposed on both the side of the fifth phase retardation film a313 far from the fifth optical substrate 311 and the side of the fifth phase retardation film b315 far from the fifth polarization reflection film 312.

In another embodiment, a fifth retardation film a313, a fifth polarization reflection film 312, and a fifth retardation film b315 are sequentially disposed on the side of the fifth optical substrate 311 close to the spectroscopy module 50, and a fifth antireflection optical film 314 is disposed on both the side of the fifth optical substrate 311 away from the fifth retardation film a313 and the side of the fifth retardation film b315 away from the fifth optical substrate 311.

Referring to fig. 8, ninth optical lens 38 includes a ninth optical substrate 381, a ninth phase retardation film 382, and a ninth antireflection optical film 383, where ninth phase retardation film 382 is disposed on one side of ninth optical substrate 381, and a ninth antireflection optical film 383 is disposed on both a side of ninth optical substrate 381 away from ninth phase retardation film 382 and a side of ninth phase retardation film 382 away from ninth optical substrate 381.

A sixth transmission mirror 35 may be disposed on the light path between the fifth optical lens 31 and the fourth reflection mirror 32, the number of the sixth transmission mirror 35 is one, two, or more, and when the number of the sixth transmission mirror 35 is two or more, the plurality of sixth transmission mirrors 35 are disposed side by side at intervals on the light path between the fifth optical lens 31 and the fourth reflection mirror 32; the fourth outgoing light 33 may have a seventh transmissive mirror 36 on the light path, the number of the seventh transmissive mirrors 36 is one, two, or more, and when the number of the seventh transmissive mirrors 36 is two or more, the seventh transmissive mirrors 36 are arranged side by side at intervals on the light path of the fourth outgoing light 33.

The fourth optical module 40 includes a sixth optical lens 41 and a seventh optical lens 42, the sixth optical lens 41 is disposed on the light path of the fourth outgoing light 33, and the seventh optical lens 42 is disposed on the light path of the reflected light of the sixth optical lens 41.

Referring to FIG. 9, sixth optical lens 41 includes a sixth optical substrate 411, a sixth absorbing type linear polarizing film 412, a sixth polarizing reflective film 413, a sixth phase retarder film 414, and a sixth antireflection optical film 415.

Both side surfaces of the sixth optical substrate 411 may be plane, spherical, aspherical, or free-form.

In this embodiment, the sixth absorbing type linear polarization film 412, the sixth polarization reflection film 413 and the sixth phase retardation film 414 are sequentially disposed on the side of the sixth optical substrate 411 close to the fifth optical lens 31, and the sixth antireflection optical film 415 is disposed on both the side of the sixth optical substrate 411 far away from the fifth optical lens 31 and the side of the sixth phase retardation film 414 far away from the sixth polarization reflection film 413.

Of course, in another embodiment, the sixth absorbing type linear polarization film 412 may also be disposed on the side of the sixth optical substrate 411 away from the fifth optical lens 31, the sixth polarization reflection film 413 and the sixth phase retardation film 414 are sequentially disposed on the side of the sixth optical substrate 411 away from the sixth absorbing type linear polarization film 412, and the sixth antireflection optical film 415 is disposed on both the side of the sixth absorbing type linear polarization film 412 away from the sixth optical substrate 411 and the side of the sixth phase retardation film 414 away from the sixth polarization reflection film 413.

In yet another embodiment, a sixth polarizing reflective film 413 and a sixth absorbing type linear polarizing film 412 are sequentially disposed on the side of the sixth optical substrate 411 away from the fifth optical lens 31, a sixth phase retarder film 414 is disposed on the side of the sixth optical substrate 411 away from the sixth polarizing reflective film 413, and a sixth antireflection optical film 415 is disposed on both the side of the sixth absorbing type linear polarizing film 412 away from the sixth optical substrate 411 and the side of the sixth phase retarder film 414 away from the sixth polarizing reflective film 413.

In yet another embodiment, a sixth phase retarder film 414, a sixth polarizing reflective film 413, and a sixth absorbing type linear polarizing film 412 are sequentially disposed on the side of the sixth optical substrate 411 away from the fifth optical lens 31, and a sixth antireflection optical film 415 is disposed on each of the side of the sixth optical substrate 411 away from the sixth phase retarder film 414 and the side of the sixth absorbing type linear polarizing film 412 away from the sixth optical substrate 411.

Referring to fig. 10, the seventh optical lens 42 includes a seventh optical substrate 421, and a seventh compensating mirror 422, a seventh phase retardation film 423, a seventh linear polarization reflective film 424 and a seventh antireflection optical film 425 which are sequentially disposed on a side of the seventh optical substrate 421 away from the sixth optical lens 41, and a seventh partial transmission partial reflective film 426 is disposed on a side of the seventh optical substrate 421 close to the sixth optical lens 41. Of course, the seventh partially transmitting and partially reflecting film 426 may be provided between the seventh optical substrate 421 and the seventh compensating mirror 422.

In the invention, all the phase delay films are quarter-wave plates and have the function of converting circularly polarized light into linearly polarized light or converting linearly polarized light into circularly polarized light; all the polarization reflecting films have the functions of reflecting linearly polarized light in a certain direction and transmitting linearly polarized light in the other direction; all linear polarization films have the function of absorbing linearly polarized light in one direction and transmitting linearly polarized light in the other direction.

The imaging principle of the binocular optical display system with the multiplexed light source and the folded light path is as follows:

the light emitted by the display 60 is natural light, the natural light emitted by the display 60 firstly enters the first transmission mirror 54 to be processed and then is transmitted, the light transmitted from the first transmission mirror 54 enters the first optical lens 51 to be processed to obtain transmission polarized light and reflection polarized light, the transmission polarized light is transmitted from the first optical lens 51 and enters the first reflection mirror 52 to be reflected to form first emergent light 55, and the reflection polarized light enters the second reflection mirror 53 to be reflected again to form second emergent light 56 after being reflected; the first emergent light 55 enters the second optical lens 11 through the eighth optical lens 14 to be processed and then reflected, light reflected by the second optical lens 11 enters the third reflector 12 through the third transmission lens 15 to be reflected, light reflected by the third reflector 12 enters the second optical lens 11 again after passing through the third transmission lens 15 to be processed and then transmitted out to form third emergent light 13, the third emergent light 13 enters the third optical lens 21 through the fourth transmission lens 16 to be processed and then reflected, light reflected by the third optical lens 21 enters the fourth optical lens 22 to be processed and then reflected, light reflected by the fourth optical lens 22 enters the third optical lens 21 again to be processed and then transmitted out to human eyes to form a virtual image with a specific imaging position and a specific magnification; meanwhile, the second outgoing light 56 enters the fifth optical lens 31 through the ninth optical lens 38 to be processed and reflected, the light reflected by the fifth optical lens 31 enters the fourth reflecting mirror 32 after passing through the sixth transmitting mirror 35 to be reflected, the light reflected by the fourth reflecting mirror 32 enters the fifth optical lens 31 again after passing through the sixth transmitting mirror 35 to be processed and transmitted out to form fourth outgoing light 33, the fourth outgoing light 33 enters the sixth optical lens 41 through the seventh transmitting mirror 36 to be reflected, the light reflected by the sixth optical lens 41 enters the seventh optical lens 42 to be processed and reflected, and the light reflected by the seventh optical lens 42 enters the sixth optical lens 41 again to be processed and transmitted out to reach human eyes to form a virtual image with a specific imaging position and a specific magnification.

Example 2

Referring to fig. 11, a binocular optical display system for multiplexing light paths of a light source includes a display 60, a beam splitting module 50, a first optical module 10, a second optical module 20, a third optical module 30, and a fourth optical module 40.

It should be noted that the difference between the present embodiment and the first embodiment is the first optical module 10 and the third optical module 30.

The display 60, the light splitting module 50, the second optical module 20, and the fourth optical module 40 in this embodiment adopt the display 60, the light splitting module 50, the second optical module 20, and the fourth optical module 40 in the first embodiment, and the structure, the working principle, and the generated technical effects thereof refer to the corresponding contents in the first embodiment, which are not described herein again.

The first optical module 10 includes a second optical lens 18 and a third reflector 12, the second optical lens 18 is disposed on the light path of the first outgoing light 55, the third reflector 12 is disposed on the light path of the transmitted light of the second optical lens 18, and the light reflected by the third reflector 12 enters the second optical lens 18 and is reflected again to form a third outgoing light 13. The third reflector 12 is a total reflection mirror. The second optical module 20 is disposed on the optical path of the third outgoing light 13.

Referring to fig. 12, the second optical sheet 18 includes a second optical substrate 181, a second polarizing reflection film 182, a second phase retardation film a183, and a second antireflection optical film 184.

Both side surfaces of the second optical substrate 181 may be plane, spherical, aspherical, or free-form.

In this embodiment, the second polarization reflection film 182 is disposed on the side of the second optical substrate 181 far away from the first reflection mirror 52, the second phase retardation film a183 is disposed on the side of the second polarization reflection film 182 far away from the second optical substrate 181, and the second antireflection optical film 184 is disposed on both the side of the second optical substrate 181 far away from the second polarization reflection film 182 and the side of the second phase retardation film a183 far away from the second polarization reflection film 182.

Of course, in another embodiment, the second phase retardation film a183 may be disposed on the side of the second optical substrate 181 close to the first reflecting mirror 52, the second polarization reflection film 182 may be disposed on the side of the second phase retardation film a183 away from the second optical substrate 181, and the second antireflection optical film 184 may be disposed on both the side of the second optical substrate 181 away from the second phase retardation film a183 and the side of the second phase retardation film a183 away from the second optical substrate 181.

In still another embodiment, the second polarization reflection film 182 may be disposed on the side of the second optical substrate 181 close to the first reflection mirror 52, the second phase retardation film a183 may be disposed on the side of the second optical substrate 181 far from the second polarization reflection film 182, and the second antireflection optical film 184 may be disposed on both the side of the second polarization reflection film 182 far from the second optical substrate 181 and the side of the second phase retardation film a183 far from the second optical substrate 181.

The second transmission mirror 17 can be arranged on the light path between the first reflection mirror 52 and the second optical lens 18, the number of the second transmission mirrors 17 is one, two or more, when the number of the second transmission mirrors 17 is two or more, a plurality of second transmission mirrors 17 are arranged side by side at intervals on the light path between the first reflection mirror 52 and the second optical lens 18; a third transmission mirror 15 may be disposed on the light path between the second optical lens 18 and the third reflection mirror 12, the number of the third transmission mirrors 15 is one, two, or more, and when the number of the third transmission mirrors 15 is two or more, a plurality of the third transmission mirrors 15 are disposed side by side at intervals on the light path between the second optical lens 18 and the third reflection mirror 12; a fourth transmission mirror 16 may be disposed on the light path of the third outgoing light 13, the number of the fourth transmission mirrors 16 is one, two, or more, and when the number of the fourth transmission mirrors 16 is two or more, the plurality of fourth transmission mirrors 16 are disposed side by side at intervals on the light path of the third outgoing light 13.

The third optical module 30 includes a fifth optical lens 37 and a fourth reflective mirror 32, the fifth optical lens 37 is disposed on the light path of the second outgoing light 56, the fourth reflective mirror 32 is disposed on the light path of the transmitted light of the fifth optical lens 37, and the light reflected by the fourth reflective mirror 32 enters the fifth optical lens 37 and is reflected again to form a fourth outgoing light 33. The fourth mirror 32 is a total reflection mirror. The fourth optical module 40 is disposed on the optical path of the fourth outgoing light 33.

Referring to fig. 13, fifth optical lens 37 includes a fifth optical substrate 371, a fifth polarizing reflective film 372, a fifth phase retardation film a373, and a fifth antireflection optical film 374.

Both side surfaces of the fifth optical substrate 371 may be plane, spherical, aspherical, or free-form.

In this embodiment, the fifth polarizing reflective film 372 is disposed on the side of the fifth optical substrate 371 away from the second mirror 53, the fifth phase retardation film a373 is disposed on the side of the fifth polarizing reflective film 372 away from the fifth optical substrate 371, and the fifth antireflection optical film 374 is disposed on both the side of the fifth optical substrate 371 away from the fifth polarizing reflective film 372 and the side of the fifth phase retardation film a373 away from the fifth polarizing reflective film 372.

Of course, in another embodiment, the fifth retardation film a373 may be disposed on the side of the fifth optical substrate 371 close to the second mirror 53, the fifth polarizing reflective film 372 is disposed on the side of the fifth retardation film a373 away from the fifth optical substrate 371, and the fifth antireflection optical film 374 is disposed on both the side of the fifth optical substrate 371 away from the fifth retardation film a373 and the side of the fifth polarizing reflective film 372 away from the fifth retardation film a 373.

In another embodiment, the fifth polarizing reflective film 372 may also be disposed on the side of the fifth optical substrate 371 close to the second mirror 53, the fifth phase retardation film a373 is disposed on the side of the fifth optical substrate 371 away from the fifth polarizing reflective film 372, and the fifth antireflection optical film 374 is disposed on both the side of the fifth polarizing reflective film 372 away from the fifth optical substrate 371 and the side of the fifth phase retardation film a373 away from the fifth optical substrate 371.

A fifth transmission mirror 34 may be disposed on the light path between the second reflection mirror 53 and the fifth optical lens 37, the number of the fifth transmission mirrors 34 is one, two, or more, and when the number of the fifth transmission mirrors 34 is two or more, the plurality of fifth transmission mirrors 34 are disposed side by side at intervals on the light path between the second reflection mirror 53 and the fifth optical lens 37; a sixth transmission mirror 35 may be disposed on the light path between the fifth optical lens 37 and the fourth reflection mirror 32, the number of the sixth transmission mirrors 35 is one, two, or more, and when the number of the sixth transmission mirrors 35 is two or more, the plurality of sixth transmission mirrors 35 are disposed side by side at intervals on the light path between the fifth optical lens 37 and the fourth reflection mirror 32; the fourth outgoing light 33 may have a seventh transmissive mirror 36 on the light path, the number of the seventh transmissive mirrors 36 is one, two, or more, and when the number of the seventh transmissive mirrors 36 is two or more, the seventh transmissive mirrors 36 are arranged side by side at intervals on the light path of the fourth outgoing light 33.

the light emitted by the display 60 is natural light, the natural light emitted by the display 60 firstly enters the first transmission mirror 54 to be processed and then transmitted, the light transmitted from the first transmission mirror 54 enters the first optical lens 51 to be processed to obtain transmission polarized light and reflection polarized light, the reflection polarized light is reflected from the first optical lens 51 to form first emergent light 55, the transmission polarized light is transmitted from the first optical lens 51 to enter the second reflection mirror 53 to be reflected, and the light reflected from the second reflection mirror 53 enters the first optical lens 51 to be reflected again to form second emergent light 56; the first emergent light 55 enters the second optical lens 18 through the second transmission lens 17 to be processed and transmitted, the light transmitted from the second optical lens 18 enters the third reflection lens 12 through the third transmission lens 15 to be reflected, the light reflected from the third reflection lens 12 enters the second optical lens 18 again after passing through the third transmission lens 15 to be processed and reflected to form third emergent light 13, the third emergent light 13 enters the third optical lens 21 through the fourth transmission lens 16 to be processed and reflected, the light reflected from the third optical lens 21 enters the fourth optical lens 22 to be processed and reflected, the light reflected from the fourth optical lens 22 enters the third optical lens 21 again to be processed and transmitted to human eyes to form a virtual image with a specific imaging position and a specific magnification; meanwhile, the second outgoing light 56 enters the fifth optical lens 37 through the fifth transmission mirror 34 to be processed and transmitted, the light transmitted from the fifth optical lens 37 enters the fourth reflection mirror 32 after passing through the sixth transmission mirror 35 to be reflected, the light reflected by the fourth reflection mirror 32 enters the fifth optical lens 37 again after passing through the sixth transmission mirror 35 to be processed and reflected to form fourth outgoing light 33, the fourth outgoing light 33 enters the sixth optical lens 41 through the seventh transmission mirror 36 to be reflected, the light reflected by the sixth optical lens 41 enters the seventh optical lens 42 to be processed and reflected, and the light reflected by the seventh optical lens 42 enters the sixth optical lens 41 again to be processed and transmitted to reach human eyes to form a virtual image with a specific imaging position and a specific magnification.

Example 3

The third embodiment of the invention also provides wearable equipment which comprises a wearing part and a binocular optical display system for multiplexing the light source folding light path.

It should be noted that the binocular optical display system with a folded optical path of a multiplexed light source in this embodiment may adopt the binocular optical display system with a folded optical path of a multiplexed light source in embodiment 1 or embodiment 2, and the structure, the working principle, and the generated technical effects refer to the corresponding contents in embodiment 1 or embodiment, which are not described herein again.

The binocular optical display system of the multiplexing light source folding light path is arranged on the wearing part. The wearing part can be a helmet or an eyeglass frame and the like, so that the wearing part is convenient for people to wear on the head. Of course, the wearable device may further include a control unit, a storage unit, and the like, where the control unit is convenient for controlling the device, and the storage unit is convenient for storing images, videos, and the like.

When the digital image display device is used, the distance between the optical lenses can be manually or electrically adjusted, or the distance between the lens and the display screen is changed to change the position of the virtual image, so that the digital image display device can better adapt to the watching requirements of a myopic user on the digital image.

The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.

Claims

1. The utility model provides a binocular optical display system of folding light path of multiplexing light source which characterized in that: the display comprises a display, a light splitting module, a first optical module, a second optical module, a third optical module and a fourth optical module;

2. The binocular optical display system of the multiplexed light source folded optical path of claim 1, wherein: the beam split module includes first optical lens, first speculum and second mirror, first optical lens set up in the light-emitting light path of display, part the light of display is followed first optical lens transmits away and forms first transmitted light, first speculum set up in the light path of first transmitted light and will first transmitted light reflection forms first emergent light, part the light of display is followed first optical lens reflection forms first reverberation, the second mirror set up in the light path of first reverberation and will first reverberation reflection forms the second emergent light.

3. The binocular optical display system of the multiplexed light source folded optical path of claim 2, wherein: the first optical lens comprises a first optical substrate, a first polarization reflecting film, a first compensating mirror and a first antireflection optical film, the first polarization reflecting film is arranged on one side, far away from the display, of the first optical substrate, the first compensating mirror is arranged on one side, far away from the first optical substrate, of the first polarization reflecting film, and the first antireflection optical film is arranged on one side, far away from the first polarization reflecting film, of the first compensating mirror and one side, far away from the first polarization reflecting film, of the first optical substrate.

4. The binocular optical display system of the multiplexed light source folded optical path of claim 2 or 3, wherein: and a first transmission mirror is arranged on a light path between the display and the first optical lens.

5. The binocular optical display system of the folded optical path of the multiplexing light source of any one of claims 1 to 3, wherein: first optical module includes second optical lens, eighth optical lens and third speculum, eighth optical lens set up in the light path of first emergent light, second optical lens set up in the light path of the transmitted light of eighth optical lens, the third speculum set up in the reflected light path of second optical lens, the light that the third speculum reflected gets into form third emergent light is gone out in the transmission behind the second optical lens, second optical module set up in the light path of third emergent light.

6. The binocular optical display system of the multiplexed light source folded optical path of claim 5, wherein: the second optical lens comprises a second optical substrate, a second polarization reflecting film, a second phase delay film a, a second phase delay film b and a second antireflection optical film;

7. The binocular optical display system of the multiplexed light source folded optical path of claim 5, wherein: the eighth optical lens comprises an eighth optical substrate, an eighth phase retardation film and an eighth anti-reflection optical film, wherein the eighth phase retardation film is arranged on one side of the eighth optical substrate, and the eighth anti-reflection optical film is arranged on one side of the eighth optical substrate, which is far away from the eighth phase retardation film, and the eighth anti-reflection optical film is arranged on one side of the eighth phase retardation film, which is far away from the eighth optical substrate.

8. The binocular optical display system of the folded optical path of the multiplexing light source of any one of claims 1 to 3, wherein: first optical module includes second optical lens and third speculum, second optical lens set up in the light path of first emergent light, the third speculum set up in the transmitted light path of second optical lens, the light that the third speculum reflected gets into second optical lens is reflected once more and forms the third emergent light, the beam split module with light path between the second optical lens is equipped with the second transmission mirror, second optical module set up in the light path of third emergent light.

9. The binocular optical display system of the multiplexed light source folded optical path of claim 8, wherein: the second optical lens comprises a second optical substrate, a second polarization reflection film, a second phase retardation film a and a second antireflection optical film;

10. The binocular optical display system of the multiplexed light source folded optical path of claim 6, 7 or 9, wherein: and a third transmission mirror is arranged on a light path between the second optical lens and the third reflector, and/or a fourth transmission mirror is arranged on a light path between the second optical lens and the second optical module.

11. The binocular optical display system of the folded optical path of the multiplexing light source of any one of claims 1 to 3, wherein: the second optical module comprises a third optical lens and a fourth optical lens, the third optical lens is arranged on the light emitting path of the first optical module, and the fourth optical lens is arranged on the reflected light path of the third optical lens;

12. The binocular optical display system of the multiplexed light source folded optical path of claim 11, wherein: the fourth optical lens comprises a fourth optical substrate, a fourth compensating lens, a fourth phase delay film, a fourth line polarization reflecting film and a fourth antireflection optical film, wherein the fourth compensating lens, the fourth phase delay film, the fourth line polarization reflecting film and the fourth antireflection optical film are sequentially arranged on one side, far away from the third optical lens, of the fourth optical substrate, and a fourth partial transmission partial reflecting film is further arranged on one side, close to the third optical lens, of the fourth optical substrate or between the fourth optical substrate and the fourth compensating lens.

13. The binocular optical display system of the multiplexed light source folded optical path of claim 1, wherein: the third optical module comprises a fifth optical lens, a ninth optical lens and a fourth reflector, the ninth optical lens is arranged on the light path of the second emergent light, the fifth optical lens is arranged on the light path of the transmission light of the ninth optical lens, the fourth reflector is arranged on the light path of the reflection light of the fifth optical lens, the light reflected by the fourth reflector enters the fifth optical lens and then is transmitted out to form fourth emergent light, and the fourth optical module is arranged on the light path of the fourth emergent light;

14. The binocular optical display system of the multiplexed light source folded optical path of claim 13, wherein: the ninth optical lens comprises a ninth optical substrate, a ninth phase retardation film and a ninth antireflection optical film, wherein the ninth phase retardation film is arranged on one side of the ninth optical substrate, and the ninth antireflection optical film is arranged on one side of the ninth optical substrate far away from the ninth phase retardation film and one side of the ninth phase retardation film far away from the ninth optical substrate.

15. The binocular optical display system of the multiplexed light source folded optical path of claim 1, wherein: the third optical module comprises a fifth optical lens and a fourth reflector, the fifth optical lens is arranged on the light path of the second emergent light, the fourth reflector is arranged on the transmission light path of the fifth optical lens, the light reflected by the fourth reflector enters the fifth optical lens and is reflected again to form fourth emergent light, a fifth transmission lens is arranged on the light path between the light splitting module and the fifth optical lens, and the fourth optical module is arranged on the light path of the fourth emergent light;

16. The binocular optical display system of the folded optical path of the multiplexing light source of any one of claims 13 to 15, wherein: and a sixth transmission mirror is arranged on a light path between the fifth optical lens and the fourth reflector, and/or a seventh transmission mirror is arranged on a light path between the fifth optical lens and the fourth optical module.

17. The binocular optical display system of the folded optical path of the multiplexing light source of any one of claims 1 to 3, wherein: the fourth optical module comprises a sixth optical lens and a seventh optical lens, the sixth optical lens is arranged on a light path of the fourth emergent light, and the seventh optical lens is arranged on a reflected light path of the sixth optical lens.

18. The binocular optical display system of the multiplexed light source folded optical path of claim 17, wherein: the sixth optical lens comprises a sixth optical substrate, a sixth absorption type linear polarizing film, a sixth polarizing reflection film, a sixth phase retardation film and a sixth antireflection optical film;

19. The binocular optical display system of the multiplexed light source folded optical path of claim 17, wherein: the seventh optical lens comprises a seventh optical substrate, a seventh compensating lens, a seventh phase delay film, a seventh linear polarization reflecting film and a seventh antireflection optical film which are sequentially arranged on one side of the seventh optical substrate, which is far away from the sixth optical lens, wherein a seventh partial transmission partial reflecting film is further arranged on one side of the seventh optical substrate, which is close to the sixth optical lens, or between the seventh optical substrate and the seventh compensating lens.

20. A wearable device, characterized by: the binocular optical display system of the multiplexed light source folded optical path of any one of claims 1-19, comprising a wearing member and the binocular optical display system of the multiplexed light source folded optical path disposed on the wearing member.