CN108663806A - Imaing projector with pupil tracing function and its pupil position follow-up mechanism - Google Patents
Imaing projector with pupil tracing function and its pupil position follow-up mechanism Download PDFInfo
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- CN108663806A CN108663806A CN201710206164.3A CN201710206164A CN108663806A CN 108663806 A CN108663806 A CN 108663806A CN 201710206164 A CN201710206164 A CN 201710206164A CN 108663806 A CN108663806 A CN 108663806A
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- 210000001747 pupil Anatomy 0.000 title claims abstract description 156
- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 61
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 210000001508 eye Anatomy 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims 1
- 230000006870 function Effects 0.000 description 26
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 101100248200 Arabidopsis thaliana RGGB gene Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
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- 208000002173 dizziness Diseases 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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Abstract
The present invention discloses a kind of Imaing projector and its pupil position follow-up mechanism with pupil tracing function.Pupil position follow-up mechanism includes a light source module, a micro-mirror module, an optical module, a sensing module and a control module.Control module is electrically connected at micro-mirror module and sensing module, and light source module, micro-mirror module, optical module and sensing module are arranged along a predetermined optical path.The point light source that light source module is provided is by the reflection of micro-mirror module to form an area source.Area source forms a detection light source of trend of purchasing eyeball surface by the reflection of optical module, and eyeball surface has pupil surface and the non-pupil surface around pupil surface.Whereby, detection light source can be by the reflection on pupil surface to form the reflection source for investing sensing module, and sensing module can be according to reflection source to transmit pupil position signal to control module.The Imaing projector of the disclosure can have the function of pupil tracing.
Description
Technical field
This disclosure relates to which technical field of virtual reality, throws in particular to a kind of image with pupil tracing function
Image device and its pupil position follow-up mechanism.
Background technology
The wear-type in user or wearable image projecting system by virtual reality and/or amplification virtual reality applications
Technology is current trend of the times.When user is using wear-type or wearable image projecting system (being typically glasses), virtually
Reality imagery or video council are projected to the eyes of user with imaging by projection arrangement.Meanwhile it is preferably virtual existing in order to reach
Entity tests impression, can separately add follow-up mechanism in projection systems to track the head of user and the position of eyes and movement.
It is by detecting current eye position and predicting under head and eyes in virtual reality device in the prior art
One position come analyze and in conjunction with image to next position user's focal zone, to realize the effect of stare tracking.However,
The real image (in imaging of retina) that each eye of user is perceived is actually the reality focused on from eyes fixed range (focal length)
Picture or virtual image plane.In general, the optic nerve of human brain can automatically according to the real image perceived, eyes to be adjusted focusing exists
In the component/object perceived, but in virtual reality device, the Focussing of eyes can be with the real image of fixed range
Focal distance contradict.Thus, can make brain that can not successfully coordinate visual perception system and proprioception, easy to produce
Fatigue and dizziness.
Therefore the stare tracking system in prior art virtual reality device projects still with virtual image with improvement space.
Invention content
Technical problem to be solved by the present invention lies in pupil tracing can be had by providing one kind in view of the deficiencies of the prior art
The Imaing projector of function and can Real-time Feedback pupil position information pupil position follow-up mechanism.
In order to solve the above technical problems, a wherein technical solution of the present invention is to provide a kind of with pupil
The Imaing projector of hole tracking function comprising：One light source module, a micro-mirror module, an optical module, a sensing module with
And a control module, the control module are electrically connected at the micro-mirror module and the sensing module, and the light source module,
The micro-mirror module, the optical module and the sensing module are arranged along a predetermined optical path.Wherein, the light source
One first point light source that module is provided is by the reflection of the micro-mirror module to form one first area source, first face light
Source forms the detection light source of one eyeball surface of a trend of purchasing by the reflection of the optical module, and the eyeball surface has one
Pupil surface and one surround the pupil surface non-pupil surface.Wherein, the detection light source passes through the pupil surface
Reflection to form one first reflection source for investing the sensing module, and the sensing module is according to first reflected light
Source is to transmit a pupil position signal to the control module.Wherein, the control module according to the pupil position signal with
Adjust the micro-mirror module, the micro-mirror module of one second point light source that the light source module is provided by adjusting after it is anti-
It penetrates to form one second area source, and second area source is accurately invested by the reflection of the optical module with forming one
The image light source on the pupil surface.
Further, first point light source is a non-visible light light beam, and second point light source is an image light
Beam.
Further, the area for investing the detection light source of the eyeball surface is more than or equal to the eyeball table
The area in face.
Further, the micro-mirror module includes multiple micromirrors, and the control module passes through the pupil position
Signal, to adjust a reflection angle of each micromirror.
Further, the detection light source invests the sensing module by the reflection on the non-pupil surface to be formed
One second reflection source, and the translucency on the pupil surface be more than the non-pupil surface translucency so that described
The intensity of first reflection source is less than the intensity of second reflection source.
In order to solve the above technical problems, an other technical solution of the present invention is to provide a kind of pupil position
Set follow-up mechanism comprising：One light source module, a micro-mirror module, an optical module, a sensing module and a control module,
The control module is electrically connected at the micro-mirror module and the sensing module, and the light source module, the micro-mirror module,
The optical module and the sensing module are arranged along a predetermined optical path.Wherein, the light source module is provided
One point light source is by the reflection of the micro-mirror module to form an area source, the reflection that the area source passes through the optical module
To form a detection light source for investing an eyeball surface, and the eyeball surface has a pupil surface and one around the pupil
The non-pupil surface of hole surface.Wherein, the detection light source invests the sensing by the reflection on the pupil surface to be formed
One first reflection source of module, and the sensing module according to first reflection source to transmit a pupil position signal extremely
The control module.
Further, the point light source is a non-visible light light beam.
Further, the area for investing the detection light source of the eyeball surface is more than or equal to the eyeball table
The area in face.
Further, the micro-mirror module includes multiple micromirrors, and the control module passes through the pupil position
Signal, to adjust a reflection angle of each micromirror.
Further, the detection light source invests the sensing module by the reflection on the non-pupil surface to be formed
One second reflection source, and the translucency on the pupil surface be more than the non-pupil surface translucency so that described
The intensity of first reflection source is less than the intensity of second reflection source.
The beneficial effects of the present invention are the image projectings with pupil tracing function that technical solution of the present invention is provided
Device and its pupil position follow-up mechanism, can be by the way that " the first point light source that the light source module is provided passes through the micro mirror
To form the first area source, first area source is invested at a glance by the reflection of the optical module with being formed for the reflection of module
The detection light source of ball surface " and " the detection light source invests the sensing mould by the reflection on the pupil surface to be formed
The technical characteristic of first reflection source of block ", so that sensing module is according to the first reflection source transmission pupil position signal to control
Molding block, and make control module according to pupil position signal to adjust micro-mirror module so that the formation of the second point light source is accurately thrown
To an image light source on the pupil surface.
For the enabled feature and technology contents for being further understood that the present invention, please refer to below in connection with the present invention specifically
Bright and attached drawing, however the attached drawing provided is merely provided for reference and description, is not intended to limit the present invention.
Description of the drawings
Fig. 1 is what the Imaing projector with pupil tracing function of the embodiment of the present invention was arranged along predetermined optical path
Schematic diagram.
Fig. 2 is a wherein image projecting optics for the Imaing projector with pupil tracing function of the embodiment of the present invention
Path schematic diagram.
Fig. 3 is that the pupil position of the Imaing projector with pupil tracing function of the embodiment of the present invention tracks optics road
The schematic diagram of diameter.
Fig. 4 is the other image projecting optics of the Imaing projector with pupil tracing function of the embodiment of the present invention
Path schematic diagram.
Specific implementation mode
Be below illustrated by particular specific embodiment it is presently disclosed in relation to " with pupil tracing function shadow
The embodiment of picture projection arrangement and its pupil position follow-up mechanism ", those skilled in the art can be by disclosed in this specification
Content understands advantages of the present invention and effect.The present invention can be implemented or be applied by other different specific embodiments, this
Every details in specification may be based on different viewpoints with application, do not depart from the present invention design under carry out it is various modification with
Change.In addition, the attached drawing of the present invention is only simple schematically illustrate, not according to the description of actual size, state in advance.Reality below
The relevant technologies content of the present invention will be explained in further detail in the mode of applying, but disclosure of that is not to limit the present invention's
Protection domain.
Referring to Fig. 1, its arrangement signal for the Imaing projector with pupil tracing function of the embodiment of the present invention
Figure.The present invention provides a kind of Imaing projector D with pupil tracing function comprising a light source module 1, a micro-mirror module
2, an optical module 3, a sensing module 5 and a control module 6.Control module 6 is electrically connected at micro-mirror module 2 and sensing mould
Block 5.Meanwhile light source module 1, micro-mirror module 2, optical module 3 and sensing module 5 are arranged along a predetermined optical path L.
The predetermined optical path L of the present invention is the predictable path advanced by the principle of light incidence and reflection, therefore
The arrangement in predetermined optical path can be configured according to basic optical principle.
Furthermore as shown in Figure 1, the Imaing projector D with pupil tracing function of the present invention, light source module 1 can
It is provided to a little less light source.It can be by the reflection of micro-mirror module 2 to form at least one side light source to a little less light source.At least one side
Light source is again by the reflection of optical module 3 to form detection light source and/or be image light source.
For example, in an embodiment of the present invention, the light source module of the Imaing projector D with pupil tracing function
1 can provide the first point light source and the second point light source simultaneously, and the first point light source is different from the optical wavelength of the second point light source.This
Outside, the first point light source is to form detection light source；Second point light source is to form image light source.Further, the first point light
It source can be with right and wrong visible light beam；And the second point light source is the image strip that can form image.
Wherein, light source module 1 can have there are two light source projects unit, provide the first different point light of optical wavelength respectively
Source and the second point light source.For example, light source module 1 may include visible light projecting unit and non-visible light projecting unit, difference
First point light source of non-visible light light beam and the second point light source of image strip are provided.
From the above, in embodiments of the present invention, the first point light source that light source module 1 is provided can be by micro-mirror module 2
Reflection to form the first area source, the first area source can be by the reflection of optical module 3 to form detection light source.Detect light source
It is to invest eyeball surface, and eyeball surface has pupil surface and the non-pupil surface around pupil surface.Because of light source meeting
Enter in eyeball through pupil, passes through non-pupil surface reflection so can be less than by the intensity of the reflection source of pupil surface reflection
Light source intensity.
Then, further include the light of only specific wavelength in the Imaing projector with pupil tracing function of the present invention
The sensing module 5 that source is detected.In the present invention, sensing module 5 only receives the light of non-visible wavelength, therefore sensing module 5
The detection light source of the first area source formation is sensed, the image light source without being reflected to form by the second area source is influenced.Wherein,
For detection light source by the reflection on pupil surface to form the first reflection source for investing sensing module 5, detection light source passes through non-pupil
The second reflection source of sensing module 5 is invested in the reflection of hole surface to be formed.The intensity of first reflection source is less than the second reflection
The intensity of light source, thus, which sensing module 5 can be according to the first reflection source to transmit pupil position signal to control module 6.
Furthermore control module 6 according to pupil position signal to adjust micro-mirror module 2, meanwhile, what light source module 1 was provided
The reflection of micro-mirror module 2 of second point light source by adjusting after is to form the second area source, and the second area source is also through optics
The image light source on pupil surface is accurately invested in the reflection of module 3 to be formed.
Below by according to the embodiment of practical operation sequentially the present invention will be described in detail with pupil tracing function image
The operation of each component of projection arrangement D is to realize the function of pupil tracing.
It please refers to Fig.1 and Fig. 2, figure has a wherein image projecting light of the Imaing projector D of pupil tracing function
Learn path schematic diagram.As shown in Fig. 2, the embodiment of the present invention provides a kind of Imaing projector D with pupil tracing function,
Including light source module 1, micro-mirror module 2, optical module 3, sensing module 5 and control module 6.Control module 6 is electrically connected at
Micro-mirror module 2 and sensing module 5.In addition, as previously mentioned, light source module 1, micro-mirror module 2, optical module 3 and sensing mould
Block 5 is arranged along a predetermined optical path L.Under the pattern (Fig. 2) of image projecting, light source module 1 is according to a predetermined optical
Path provides the second point light source L2.Light source module 1 can provide the second point light source L2 by visible light projecting unit.
First, light source module 1 provides the second point light source L2 to micro-mirror module 2, and the second face is formed after the reflection of micro-mirror module 2
Light source L21.Second area source L21 is by the reflection of optical module 3 to form image light source L22.
It is described in detail, the second point light source L2 is the visible light beam of transmittable image.In other words, the second point light source
L2 is the image strip that can form image.In embodiments of the present invention, the second point light source L2 can be RGB lasing fluorescence modules,
Including a red laser light source, a blue laser light source and a green laser light source (being indicated herein with RGB).Light source module
1 is instantaneously incident upon RGB laser light sources in a short time in each micro mirror unit (can be micromirror) of micro-mirror module 2.Then,
RGB laser light sources form frame the second area source L21 after the reflection of micro-mirror module 2, are projected to optical module 3.Second area source
Reflections of the L21 again through optical module 3 is to form image light source L22.
It is noted that other than aforementioned single RGB laser light sources, the second point light source L2 of the invention can also be
RGGB laser light sources.That is, the second point light source L2 can be a red laser light source, two green laser light sources and
One blue laser light source.Proving by the same methods, the second point light source L2 can also be that RRGGB laser light sources, tool swash there are two red
Radiant, two green laser light sources and a blue laser light source.
It is noted that optical module 3 can be, for example but it is not limited to：It is concave mirror, plane mirror, convex
Lens.In the embodiment of the present invention, optical module 3 is concave mirror, however, the present invention is not limited thereto.In addition, optical module 3 can be
It is fixed or adjustable.In embodiments of the present invention, optical module 3 is fixed.
From the above, as shown in Fig. 2, image light source L22 reflects through optical module 3 and accurately invests the eyeball of user
The pupil surface 41 on surface 4.According to the present embodiment, the second area source L21 reflected through micro-mirror module 2 is by being concave mirror
Optical module 3 reflect after, formed image light source L22, after the image light source L22 is by pupil surface 41, focusing on makes
The eyeball of user, finally in retina image-forming.It is event, the second point light source L2 launched from light source module 1 can finally be formed
The image light source L22 being imaged in user's eyeball.
Then, it please refers to Fig.1 and Fig. 3, the pupil position for being the Imaing projector D with pupil tracing function is tracked
The schematic diagram of optical path.As shown in Figure 3, the Imaing projector D packets with pupil tracing function of the embodiment of the present invention
Include light source module 1, micro-mirror module 2, optical module 3, sensing module 5 and the control module arranged along predetermined optical path L
6.It shows according to fig. 3, light source module 1 provides the first point light source L1 according to predetermined optical path, has the function of pupil tracing at this time
Imaing projector D have pupil position tracking optical path pattern.
Similar to aforementioned pattern projection image, first, light source module 1 provides at first point by its non-visible light projecting unit
Light source L1 forms the first area source L11, the first area source L11 is through optical module 3 to micro-mirror module 2 after the reflection of micro-mirror module 2
Reflect to form the detection light source L12 for investing pupil surface.
It is described in detail, the first point light source L1 is non-visible light beam.For example, the of the embodiment of the present invention
One point light source L1 can be a length of 760nm of light wave to the infrared light between 1000nm.
From the above, the first point light source L1 can be projected with single light beam, also can be with multiple a light beams to form a transmitting
Range projects.In embodiments of the present invention, the first point light source L1 is projected with single light beam.Light source module 1 provides infrared light and exists
It is instantaneously incident upon in short time in each micro mirror unit (can be micromirror) of micro-mirror module 2.Then, infrared light is through micro-mirror module
Frame the first area source L11 is formed after 2 reflections, is projected to optical module 3.Reflections of the first area source L11 again through optical module 3
To form the detection light source L12 with a projection scope.
Illustrate again, in the present embodiment, optical module 3 is fixed concave mirror, however, the present invention is not limited thereto.
From the above, as shown in figure 3, the first area source L11 reflects through optical module 3 and invests the eyeball surface of user
4.It is noted that according to embodiments of the present invention, eyeball surface 4 has pupil surface 41 and around the non-of pupil surface 41
Pupil surface 42.The area of covering for investing the detection light source L12 of eyeball surface 4 includes pupil surface 41 and non-pupil surface 42
Range.Specifically, the area for investing the detection light source L12 of eyeball surface 4 is greater than or equal to the face of eyeball surface 4
Product.In embodiments of the present invention, the area of detection light source L12 is equal to the area of eyeball surface 4.
From the above, detection light source L12 reflects to form the first reflection source R1 by pupil surface 41；Detect light source
L12 reflects to form the second reflection source R2 by non-pupil surface 42.First reflection source R1 can be sensed the detection of module 5,
Sensing module 5 can transmit pupil position signal to control module 6 according to the first reflection source R1.Due to the light transmission on pupil surface 41
Property be more than non-pupil surface 42 translucency.The detection light source L12 for investing pupil surface 41 has and partially passes through pupil into pleasing to the eye
Ball, therefore the intensity of the first reflection source R1 can be smaller than the intensity of the second reflection source R2 of total reflection.In this way, sensing module
5 can judge the position of pupil whereby, and obtain a pupil position signal, and the pupil position signal is sent to control module 6.
From figure 3, it can be seen that Rotation of eyeball makes pupil position be offset to right side from vertical middle, pupil surface 41 still exists
Within the area for detecting light source L12.Therefore, the part infrared light in detection light source L12 can pass through the pupil table after offset
The first reflection source R1 of smaller intensity is reflected in face 41, and remaining the second reflection source R2's reflected from non-pupil surface 42 is strong
It spends constant.And then sensing module 5 by reflex to sensing module the first reflection source R1 and the second reflection source R2 it is strong
It is weak, it can judge pupil position.In this way, when the Rotation of eyeball of user, sensing module 5 can the real-time tracing user
Eyeball pupil position, and the pupil position signal of pupil is exported in real time.
Then referring to Fig. 4, it is the other image projecting optics of the Imaing projector D with pupil tracing function
Path schematic diagram.In detail, described in brought forward, sensing module 5 exports the pupil position signal of pupil to control module 6, controls mould
Block 6 adjusts micro-mirror module 2 according to the pupil position signal.According to Fig. 4, control module 6 adjusts micro mirror according to pupil position signal
Module 2 so that micro-mirror modules 2 of the second point light source L2 that light source module 1 is provided after being adjusted reflects to form adjustment
The second area source L21 afterwards, and the second area source L21 after adjustment passes through the image light after reflecting to form adjustment of optical module 3
Source L22.Image light source L22 after adjustment accurately invests pupil surface (after offset), with again in the eyeball of user
Imaging.Specifically, micro-mirror module 2 may include multiple micromirrors, and control module 6 can be adjusted often by pupil position signal
The reflection angle of one micromirror.Predetermined optical path thus can be changed so that the second point light source L2 is sequenced through micro mirror
The reflection of module 2 and optical module 3 is formed by image light source L22 can accurately invest pupil surface in real time.
It is noted that it is aforementioned detection light source L12 by eyeball surface reflect varying strength the first reflection source R1 with
Second reflection source R2 is so that sensing module 5 judges the start of pupil position, with the adjustment micro-mirror module 2 of control module 6 so that shadow
It is almost while to occur as light source L22 accurately invests the start on pupil surface.In this way, the image with pupil tracing function
Projection arrangement D provides the first point light source L1 and the second point light source L2 simultaneously, and the first point light source L1, which is formed, to be detected light source L12 and pass through
Eyeball surface 4 reflects the reflection source of varying strength, and sensing module 5 judges pupil position by reflection source and transmits pupil
Position signal is to control module 6.Meanwhile control module 6 adjusts micro-mirror module 2 to change the optics of the second point light source L2 in real time
Path in the eyeball of user to be accurately imaged.Thus, which the shadow with pupil tracing function finally can be achieved in the present invention
As projection arrangement.
The advantageous effect of embodiment
The beneficial effects of the present invention are the image projectings with pupil tracing function that technical solution of the present invention is provided
Device and its pupil position follow-up mechanism, can be by the way that " the first point light source L1 that light source module 1 is provided passes through micro-mirror module 2
Reflection with formed the first area source L11, the first area source L11 by the reflection of optical module 3 with formed invest eyeball surface 4
Detection light source L12 " and " detection light source L12 invests the first anti-of sensing module 5 by the reflection on pupil surface 41 to be formed
The technical characteristic of light source R1 " is penetrated, so that sensing module 5 transmits pupil position signal to control module according to the first reflection source R1
6, and make control module 6 according to pupil position signal to adjust micro-mirror module 2 so that the second point light source L2 formation is accurately invested
The image light source L22 on pupil surface 41.
Content disclosed above is only the preferred possible embodiments of the present invention, and the right for not thereby limiting to the present invention is wanted
The protection domain of book is sought, so every equivalence techniques variation done with description of the invention and accompanying drawing content, is both contained in
In the protection domain of claims of the present invention.
Claims (10)
1. a kind of Imaing projector with pupil tracing function, which is characterized in that the shadow with pupil tracing function
As projection arrangement includes：One light source module, a micro-mirror module, an optical module, a sensing module and a control module, it is described
Control module is electrically connected at the micro-mirror module and the sensing module, and the light source module, the micro-mirror module, described
Optical module and the sensing module are arranged along a predetermined optical path；
Wherein, one first point light source that the light source module is provided is by the reflection of the micro-mirror module to form one first face
Light source, first area source form the detection light source of one eyeball surface of a trend of purchasing by the reflection of the optical module, and
The eyeball surface surrounds the non-pupil surface on the pupil surface with a pupil surface and one；
Wherein, the detection light source forms one first reflection of the trend of purchasing sensing module by the reflection on the pupil surface
Light source, and the sensing module according to first reflection source to transmit a pupil position signal to the control module；
Wherein, according to the pupil position signal to adjust the micro-mirror module, the light source module is carried the control module
The reflection of the micro-mirror module of one second point light source supplied by adjusting after is to form one second area source, and second face
Light source is by the reflection of the optical module to form an image light source for accurately investing the pupil surface.
2. the Imaing projector according to claim 1 with pupil tracing function, which is characterized in that described first point
Light source is a non-visible light light beam, and second point light source is an image strip.
3. the Imaing projector according to claim 1 with pupil tracing function, which is characterized in that invest the eye
The area of the detection light source of ball surface is more than or equal to the area of the eyeball surface.
4. the Imaing projector according to claim 1 with pupil tracing function, which is characterized in that the micro mirror mould
Block includes multiple micromirrors, and the control module is by the pupil position signal, to adjust each micromirror
One reflection angle.
5. the Imaing projector according to claim 1 with pupil tracing function, which is characterized in that the detection light
Source is by the reflection on the non-pupil surface to form one second reflection source for investing the sensing module, and the pupil table
The translucency in face is more than the translucency on the non-pupil surface, so that the intensity of first reflection source is less than described second
The intensity of reflection source.
6. a kind of pupil position follow-up mechanism, which is characterized in that the pupil position follow-up mechanism includes：One light source module, one
Micro-mirror module, an optical module, a sensing module and a control module, the control module are electrically connected at the micro mirror mould
Block and the sensing module, and the light source module, the micro-mirror module, the optical module and the sensing module along
One predetermined optical path is arranged；
Wherein, the point light source that the light source module is provided is by the reflection of the micro-mirror module to form an area source, institute
Area source is stated by the reflection of the optical module to form the detection light source of one eyeball surface of a trend of purchasing, and the eyeball surface
The non-pupil surface on the pupil surface is surrounded with a pupil surface and one；
Wherein, the detection light source forms one first reflection of the trend of purchasing sensing module by the reflection on the pupil surface
Light source, and the sensing module according to first reflection source to transmit a pupil position signal to the control module.
7. pupil position follow-up mechanism according to claim 6, which is characterized in that the point light source is a non-visible light light
Beam.
8. pupil position follow-up mechanism according to claim 6, which is characterized in that invest the inspection of the eyeball surface
The area for surveying light source is more than or equal to the area of the eyeball surface.
9. pupil position follow-up mechanism according to claim 6, which is characterized in that the micro-mirror module includes multiple micro mirrors
Piece, and the control module is by the pupil position signal, to adjust a reflection angle of each micromirror.
10. pupil position follow-up mechanism according to claim 6, which is characterized in that the detection light source passes through described non-
One second reflection source of the sensing module is invested in the reflection on pupil surface to be formed, and the translucency on the pupil surface is big
Translucency in the non-pupil surface, so that the intensity of first reflection source is less than the strong of second reflection source
Degree.
Priority Applications (1)
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