CN205157873U

CN205157873U - A glasses for penetration demonstration

Info

Publication number: CN205157873U
Application number: CN201520958802.3U
Authority: CN
Inventors: 董若
Original assignee: Shanghai Miaoshi Optical Technology Co Ltd
Current assignee: Chengdu Yingchuang Information Technology Co ltd
Priority date: 2015-11-27
Filing date: 2015-11-27
Publication date: 2016-04-13
Anticipated expiration: 2025-11-27

Abstract

The utility model discloses a glasses for penetration demonstration, it includes: prism and lens, wherein, the prism is located between lens and the people's eye, and the prism includes incident surface and plane of reflection, and the incident surface is relative with lens, and the plane of reflection is located the incident surface in the light reflex income people eye of incident. The utility model discloses a glasses for penetration demonstration has that the angle of vision is big, the focus is adjustable, characteristics such as small.

Description

A kind of optical glasses for penetration display

Technical field

The utility model relates to virtual display field, particularly a kind of optical glasses for penetration display.

Background technology

Existing penetration virtual reality design, very a variety of implementation, comprising: the designs such as 45 ° of anti-mirrors of semi-transparent plate, off-axis aspheric surface reflection, retroeflection screen, Fresnel compositor, free curved surface prism, surface engraving waveguide, holographical wave guide and light field displays.Wherein: off-axis aspheric surface reflection and retroeflection screen, optics is volume required all larger; The optical prism part of free curved surface prism is comparatively heavy; Fresnel compositor and surface engraving waveguide are all based on diffraction reaction, and difficulty of processing is larger; The life-span of holographical wave guide is very short; There is vignetting in the emergent pupil of light field display, resolution is low.

In sum, the design of existing penetration virtual reality is all in equipment volume, visual angle, adjustability and realize difficulty existing certain defect.

Utility model content

The utility model, for above-mentioned problems of the prior art, proposes a kind of optical glasses for penetration display, has the features such as field angle is large, focus adjustable, volume are little.

For solving the problems of the technologies described above, the utility model is achieved by the following technical solution:

The utility model provides a kind of optical glasses for penetration display, and it comprises: prism and lens, wherein,

Described prism is between described lens and human eye, and described prism comprises the plane of incidence and reflecting surface, and the described plane of incidence is relative with described lens, and the light of described plane of incidence place incidence is reflected in described human eye by described reflecting surface.

Preferably, described reflecting surface is part reflecting face, reflects visible light wave range.

Preferably, the side away from described human eye of described reflecting surface is provided with compensating prism, in order to avoid affect normal line of sight.

Preferably, the reflectivity of described reflecting surface is any one value between 40% ~ 60%.

Preferably, the described plane of incidence is oblique incidence face, can increase input aperture and field angle.

Preferably, described reflecting surface and the angle of plane that is parallel to described human eye are any one value between 20 ° ~ 25 °.

Preferably, described reflecting surface is plane or curved surface, when reflecting surface is curved surface, can increase field angle further.

Preferably, when described reflecting surface is curved surface, described curved surface is any one in sphere, aspheric surface, hyperboloid, parabola, free form surface.

Preferably, described lens are lens combination, for optimizing lens combination, can use sphere or aspheric design, revising difference.

Preferably, the distance between described lens and described prism is adjustable, focuses, and can adapt to different eyesight or sighting distance.

Compared to prior art, the utility model has the following advantages:

(1) optical glasses for penetration display that provides of the utility model, utilizes the method arranging reflecting surface in the prism to realize the display of penetration virtual reality, and the design integration of the prism function of photoconduction and catoptron, reduces equipment volume;

(2) optical glasses of the present utility model adopts inclined-plane incident, can obtain larger input aperture and visual angle under the prerequisite of same prism thickness; Conversely, obtain same aperture and visual angle, inclined-plane incidence can use relatively thin prism;

(3) distance between lens and prism is adjustable, achieves focus adjustable, adapts to different eyesight or sighting distance.

Certainly, implement arbitrary product of the present utility model might not need to reach above-described all advantages simultaneously.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:

Fig. 1 is the structural representation of the optical glasses for penetration display of embodiment 1 of the present utility model;

Fig. 2 a is the front elevation of the prism of the optical glasses of embodiment 1 of the present utility model;

Fig. 2 b is the vertical view of the prism of the optical glasses of embodiment 1 of the present utility model;

Fig. 3 a is the incident ray schematic diagram in the oblique incidence face of embodiment 1;

Fig. 3 b is the incident ray schematic diagram in non-oblique incidence face;

Fig. 4 is the structural representation of the optical glasses of embodiment 2;

Fig. 5 is the visual angle skew schematic diagram of optical glasses when not adding compensating prism;

Fig. 6 is the structural representation of the optical glasses of embodiment 3.

Label declaration: 1-lens, 2-prism, 3-human eye, 4-screen;

The 21-plane of incidence, 22-reflecting surface, 23-compensating prism.

Embodiment

Below embodiment of the present utility model is elaborated; the present embodiment is implemented under premised on technical solutions of the utility model; give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.

Embodiment 1:

Composition graphs 1-Fig. 3, be described in detail the optical glasses for penetration display of the present utility model, be illustrated in figure 1 its structural representation, it comprises: lens 1 and prism 2, prism 2 is between lens 1 and human eye 3, and the light of screen 4 enters human eye 4 through lens 1, prism 2 successively.Prism 2 comprises the plane of incidence 21 and reflecting surface 22, the face that prism 2 is relative with lens 1 is the plane of incidence 21, light incides prism from the plane of incidence 21 and reflects, and eventually passes reflecting surface 22 and reflexes in human eye 4, and human eye 4 can watch video or image that screen 3 is play.

In order to obtain larger input aperture and visual angle, the plane of incidence of the prism of the present embodiment adopts oblique incidence face as shown in Figure 3 a, be schematic diagram during non-oblique incidence face as shown in Figure 3 b, compared can be found out by two width figure, the oblique incidence face of employing, can obtain larger input aperture and field angle, conversely under the prerequisite of same prism thickness, obtain same input aperture and field angle, oblique incidence face can use relatively thin prism.

In preferred embodiment, reflecting surface 22 is part reflecting face, only reflects visible light wave range part, and the screen light of part reflection and the natural light of fractional transmission enter human eye simultaneously, and such human eye just can see screen display content and actual scenery simultaneously.

In preferred embodiment, reflecting surface 22 and the angle α of plane being parallel to human eye 4 are the arbitrary value between 20 ~ 25 °.The reflectivity of reflecting surface 22 is the arbitrary value between 40% ~ 60%.In different embodiment, reflecting surface 22 can be plane or curved surface, and curved surface can be sphere, aspheric surface, hyperboloid, parabola or free form surface.Reflecting surface 22 adopts curved design can increase visual angle further, and when using camber reflection, principle, as plus lens, is equivalent to magnifier, and light converges further after this camber reflection, makes Nonlinear magnify, and namely visual angle increases.

Embodiment 2:

The present embodiment is on the basis of embodiment 1, the side prism away from human eye 4 being positioned at reflecting surface 22 being adopted compensating prism 23, for preventing visual angle from offseting and image fault, also can be used for compensating dispersion, in order to avoid affect normal line of sight, its structural representation as shown in Figure 4.When not adding compensating prism, human eye observes outside scenery by an angle of wedge prism, and visual angle can be made to offset, as shown in Figure 5 in figure solid line represent for actual scenery position, what dotted line represented is picture position; When reflecting surface 22 is curved surface, be equivalent to people and seen outward by the edge of convex lens or presbyopic glasses, image fault can be caused further, after increasing compensating prism, the skew at visual angle and the distortion of image can be prevented.

Embodiment 3:

The present embodiment is optimized lens 1 on the basis of embodiment 1 or embodiment 2, it is the lens combination after optimizing, use sphere and/or aspheric design, revise difference, and lens 1 can move forward and backward, focus adjustable, to adapt to different eyesight or sighting distance, its structural representation as shown in Figure 6.

Disclosed herein is only preferred embodiment of the present utility model, and this instructions is chosen and specifically described these embodiments, and being to explain principle of the present utility model and practical application better, is not to restriction of the present utility model.The modifications and variations that any those skilled in the art do within the scope of instructions, all should drop in scope that the utility model protects.

Claims

1., for an optical glasses for penetration display, it is characterized in that, comprising: prism and lens, wherein,

2. optical glasses according to claim 1, is characterized in that, described reflecting surface is part reflecting face, reflects visible light wave range.

3. optical glasses according to claim 1, is characterized in that, the side away from described human eye of described reflecting surface be provided with compensating prism.

4. optical glasses according to claim 1, is characterized in that, the reflectivity of described reflecting surface is any one value between 40% ~ 60%.

5. optical glasses according to claim 1, is characterized in that, the described plane of incidence is oblique incidence face.

6. optical glasses according to claim 1, is characterized in that, described reflecting surface and the angle of plane being parallel to described human eye are any one value between 20 ° ~ 25 °.

7. optical glasses according to claim 1, is characterized in that, described reflecting surface is plane or curved surface.

8. optical glasses according to claim 7, is characterized in that, when described reflecting surface is curved surface, described curved surface is any one in sphere, aspheric surface, hyperboloid, parabola, free form surface.

9. optical glasses according to claim 1, is characterized in that, described lens are lens combination.

10. the optical glasses according to any one of claim 1 to 9, is characterized in that, the distance between described lens and described prism is adjustable.