CN206876955U - The device of microspur wide angle viewing shooting - Google Patents
The device of microspur wide angle viewing shooting Download PDFInfo
- Publication number
- CN206876955U CN206876955U CN201720470643.1U CN201720470643U CN206876955U CN 206876955 U CN206876955 U CN 206876955U CN 201720470643 U CN201720470643 U CN 201720470643U CN 206876955 U CN206876955 U CN 206876955U
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- Prior art keywords
- angle
- source
- light
- parallel light
- microspur
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Abstract
The utility model is applied to image observation apparatus field, there is provided a kind of device of microspur wide angle viewing shooting, including source of parallel light module, wide-angle microspur facilities for observation, pressing plate, glass plate and polariscope；It is used to place observation thing between pressing plate and glass plate；Wide-angle microspur facilities for observation is located at the inner side of glass plate, and the field of view angle of wide-angle microspur facilities for observation is more than or equal to 2 times of Brewster's angles；The directional light of the source of parallel light module transmitting carries out reflection through the glass plate and produces reflected light, and the polariscope is used to eliminate the reflected light for being incident to the wide-angle microspur facilities for observation.The angle of the optical axis and the camera lens optical axis of the wide-angle microspur facilities for observation of the directional light of the source of parallel light module transmitting is Brewster's angle, and the source of parallel light module includes some source of parallel light units.Source of parallel light unit, the source of parallel light module of the utility model embodiment offer are applied to microspur wide angle viewing, solve the problems, such as that glass plate is reflective, lighting is limited and overview function is limited.
Description
Technical field
The utility model belongs to image observation apparatus field, more particularly to a kind of device of microspur wide angle viewing shooting.
Background technology
When carrying out image observation, how to avoid glass surface it is reflective be facilities for observation global problem.Such as band isolation
Portable small-sized facilities for observation because space limit, when need observe with own dimensions it is sizable observation thing when, it is necessary to
Using microspur wide-angle lens, the field of view angle of the microspur wide-angle lens is generally between 100 degree to 150 degree, in order to avoid isolation
The reflective of glass surface enters light path, and the arrangement of portable small-sized facilities for observation internal light source is limited in very narrow beside glass plate
In the range of lower position, and light is substantially parallel with glass plate, i.e., can only arrange the sidelight vertical with camera lens optical axis.
Light source of the prior art is arranged as shown in figure 1, the lighting angle of light source is between 30 degree to 150 degree.Positioned at height
The top light source 101 and skew ray source 107 of position can be reflexed in camera lens by glass surface, positioned at its warp of the side light source 102 of lower position
Glass plate 103 does not enter camera lens 104 after reflecting, observation thing 105 is positioned between glass plate 103 and pressing plate or cover plate 106.
In the prior art, in wide angle viewing because glass surface to be avoided is reflective, light source arrangement is limited to very narrow
In space, overview function, observing effect are extremely restricted.When visual angle such as viewing angle or camera lens is 140 degree, in order to avoid glass
Glass face is reflective, and the optical axis of light source and the angle of glass surface must be limited in 0 degree to 20 degree, that is, can only arrange sidelight
Source.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of source of parallel light unit, source of parallel light module and micro-
Device away from wide angle viewing shooting, it is intended to solve that glass surface is reflective in existing scope, lighting is limited and overview function is limited
The problem of.
The utility model is achieved in that a kind of device of microspur wide angle viewing shooting, including source of parallel light module, wide
Angle microspur facilities for observation, pressing plate and glass plate, the source of parallel light module include some source of parallel light units, wherein, the pressure
It is used to place observation thing between plate and the glass plate；
The wide-angle microspur facilities for observation is located at the inner side of the glass plate；
Each source of parallel light unit is used to be placed according to presetting angle so that the source of parallel light unit transmitting
Directional light after the glass plate is reflected caused reflected light will not enter the wide-angle microspur facilities for observation.
Further, described device also includes polariscope；Wherein, it is used to place between the pressing plate and the glass plate and sees
Examine thing；
The wide-angle microspur facilities for observation is located at the inner side of the glass plate, the angle of visual field of the wide-angle microspur facilities for observation
Degree is more than or equal to 2 times of Brewster's angles；
The optical axis and the camera lens optical axis of the wide-angle microspur facilities for observation of the directional light of the source of parallel light module transmitting
Angle is fixed on Brewster's angle；
The directional light of the source of parallel light module transmitting carries out reflection through the glass plate and produces reflected light, the polariscope
The reflected light of the wide-angle microspur facilities for observation is incident to for eliminating.
Further, the wave-length coverage of the polariscope and the optical wavelength of the directional light of the injection of the source of parallel light module
Scope is consistent.
Further, the tow sides of the glass plate are coated with antireflective film respectively.
Further, the source of parallel light unit includes shell, possesses mosaic texture on the shell, some described parallel
Light source cell carries out split, the depth of parallelism for the directional light that each source of parallel light unit projects by the mosaic texture of the shell
Less than 3 degree.
Further, the source of parallel light unit includes shell, luminescent device and collimating element；
The luminescent device, the standard is incident to for producing the diverging light of preset wave-length coverage, and by the diverging light
Straight device；
The collimating element, for the diverging light to be collimated into directional light and projected；
The shell, for installing and fixing the luminescent device and the collimating element, so that the collimating element
The optical axis coincidence of optical axis and the luminescent device, and the light-emitting area of the luminescent device is located at Jiao of the collimating element and put down
Face.
Further, the luminescent device is single lamp LED lamp panel, and the light-emitting area of the LED in single lamp LED lamp panel is located at institute
State the focal plane of collimating element.
Further, the power of the LED is 0.5 watt to 1 watt, and the lighting angle scope of the LED arrives for 30 degree
60 degree.
Further, the collimating element is the enlarging lens of rectangle, and the focal length of the enlarging lens is 5 millimeters, described
The length-width ratio of enlarging lens matches with observing the length-width ratio of visual field；
The length-width ratio of the light-emitting window of the shell matches with the length-width ratio of the enlarging lens.
Compared with prior art, beneficial effect is the utility model：The source of parallel light that the utility model embodiment provides
Unit, source of parallel light module are applied to microspur wide angle viewing, solve that glass plate is reflective, lighting is limited and overview function is limited
Problem.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the device for microspur wide angle viewing shooting that prior art provides；
Fig. 2 is a kind of structural representation for source of parallel light unit that the utility model embodiment provides；
Fig. 3 is a kind of structural representation for source of parallel light module that the utility model embodiment provides；
Fig. 4 is a kind of structural representation of the device for microspur wide angle viewing shooting that the utility model embodiment provides.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Fig. 2 shows a kind of source of parallel light unit that the utility model embodiment provides, including shell 1, luminescent device 2
With collimating element 3；
Luminescent device 2, collimating element 3 is incident to for producing the diverging light of preset wave-length coverage, and by the diverging light；
Collimating element 3, for the diverging light to be collimated into directional light 7 and projected；
Shell 1, for installing and fixing luminescent device 2 and collimating element 3, so that the optical axis 8 and photophore of collimating element 3
The optical axis coincidence of part 2, and the light-emitting area of luminescent device 2 is located at the focal plane of collimating element 3.Specifically, possesses edge on shell 1
Embedding structure 4, some source of parallel light units carry out split, the quantity and planform of split by the mosaic texture 4 of shell 1
According to the observation depending on the light field requirement in face, size, length-width ratio.
Specifically, luminescent device 2 is single lamp LED lamp panel, and the light-emitting area of the LED in single lamp LED lamp panel is located at collimater
The focal plane of part 3, the power of the LED is 0.5 watt to 1 watt or so, and the lighting angle scope of the LED is 30 degree to 60 degree
Left and right.Collimating element 3 is the enlarging lens of rectangle, and the focal lengths 6 of the enlarging lens is 5 millimeters, the length and width of the enlarging lens
Matched than the length-width ratio with observing visual field, the length-width ratio of light-emitting window 5 of shell 1 matches with the length-width ratio of the enlarging lens.Having
In body application, observation visual field refers to the plane for placing observing object, that is, the region shown by display, generally display
The length-width ratio that device is shown is 4:3 or 16:9.Therefore, in general light source also presses this Aspect Ratio lighting.
In actual applications, the source of parallel light unit suitable for the present embodiment mainly meets claimed below：
1st, structure composition：Enlarging lens+mono- lamp LED lamp panel+be used for support shell.
2nd, structural requirement：The optical axis of enlarging lens and the optical axis coincidence of LED, the light-emitting area of LED are located at enlarging lens
Focal plane on.
3rd, enlarging lens requirement：Focal length 5MM or so, such as device space permission, more long-focus can be used, to ensure what is projected
The collimation of light, and reduce aberration.Enlarging lens are shaped as rectangle, and length-width ratio is determined according to the length-width ratio of observation visual field.Such as such as
The length-width ratio of fruit observation visual field is 4:3, then the length-width ratio of the enlarging lens of rectangle be just set to 1.3：1.If observe the length of visual field
Wide ratio is 16:9, then the length-width ratio of the enlarging lens of rectangle be just set to 1：1.Above-mentioned setting in the present embodiment be present, its reason is：
First, because in actual applications, the optical axis and sightingpiston of the source of parallel light of the injection for the source of parallel light unit that the present embodiment provides
There is 34 ° of angle, light-emitting area can amplify 1/Sin (34 °) times；2nd, the enlarging lens of rectangle are easily fixed and assemble；3rd, by this
The source of parallel light unit that individual bore ratio is done, after being combined into source of parallel light module, easily matched from the sightingpiston of different length-width ratios.
4th, LED requirement：Power 0.5W to 1W or so, the light-emitting area of the chip of LED is as far as possible small, and 30 ° of lighting angle is extremely
Between 60 °, light uniformly pure.
5th, the housing requirements for support：The enlarging lens of light-emitting window length-width ratio and rectangle match.Strict guarantee magnifying glass
The optical axis of piece and the optical axis coincidence of LED, the light-emitting area of strict guarantee LED are located on the focal plane of enlarging lens.Shell has
Mosaic texture, it is easy to multiple source of parallel light units to piece together a source of parallel light module.
In the present embodiment, the light ray parallel degree requirement that source of parallel light unit projects<3°.The directional light that the present embodiment provides
Source unit can project directional light, available in the equipment shot in microspur wide angle viewing.
Fig. 3 shows a kind of directional light module that the utility model embodiment provides, and the source of parallel light module includes some
Source of parallel light unit 301 shown in Fig. 2；
Source of parallel light unit 301 shown in some Fig. 2 carries out split, each source of parallel light unit by the mosaic texture of shell
The depth of parallelism of 301 directional lights projected is less than 3 degree.
Specifically, source of parallel light module is put together by multiple source of parallel light units 301, and split shape and quantity can be according to
Such as light field size, shape, length-width ratio, lighting space demand carry out independent assortment.Projected between each source of parallel light unit 3001
Directional light the depth of parallelism requirement<3 °, the light intensity that position is joined between each source of parallel light unit 301 need to be through processing, to reach flat
Slip over the effect crossing, be seamlessly connected, leaving no trace.
Fig. 4 shows a kind of device for microspur wide angle viewing shooting that the utility model embodiment provides, including shown in Fig. 3
Source of parallel light module 401, wide-angle microspur facilities for observation 402, pressing plate 403, glass plate 404 and polariscope 405；The He of pressing plate 403
It is used to place observation thing 406 between glass plate 404；
Wide-angle microspur facilities for observation 402 is located at the inner side of the glass plate, the field of view angle of wide-angle microspur facilities for observation 402
More than or equal to 2 times Brewster's angles 407, about 110 degree；
Polariscope 405 is positioned over before the camera lens of wide-angle microspur facilities for observation 402, enters the observation of wide-angle microspur for filtering out
The reflected light of equipment 402.
The folder of the optical axis for the directional light that source of parallel light module 401 is launched and the camera lens optical axis of wide-angle microspur facilities for observation 402
Angle is fixed on Brewster's angle 407.
Specifically, the tow sides of glass plate 404 are coated with antireflective film respectively.The thickness of the antireflective film is by source of parallel light mould
The wavelength for the directional light that group 401 projects determines.If LED sends white light source, the anti-reflection film thickness is according to 450NM wavelength
It is fixed.The wave-length coverage of polariscope 405 is consistent with the optical wavelength range of the directional light of the injection of source of parallel light module 401, that is, uses
Which the source of parallel light module 401 of optical wavelength range, then need to match the polariscope 405 of the optical wavelength range.
In the present embodiment, the optical axis for the directional light that source of parallel light module 41 projects and wide-angle microspur facilities for observation 402
The angle of camera lens optical axis need to be fixed on Brewster's angle 407.Simple glass refractive index is 1.5 or so, so Brewster's angle is big
It is generally 56 °.If using multiple source of parallel light modules 405, then source of parallel light module 405 can only be placed on the observation of wide-angle microspur and set
For the opposite both sides of 402 camera lens optical axis, or unilateral lighting.If bilateral all lighting, both sides source of parallel light module 405
Optical axis to be strictly parallel to approximately the same plane.Otherwise the polarization of reflected light of the both sides source of parallel light module 405 on glass surface
Direction is variant, can weaken the effect of polariscope, that is, can weaken and eliminate the reflective effect of glass surface.Polariscope 405 is being adjusted
It is whole to must just fix after best effect.And before the fixation of polariscope 405, source of parallel light module 401 must be fixed first.
The operation principle of the utility model embodiment is：The incidence angle of source of parallel light module 405 is located at Brewster's angle,
Then its reflected light on 404 glass surfaces of glass plate can become complete polarized light, then polariscope is placed before observation panel
405, the purpose for eliminating whole reflected lights can be reached.
The device for the microspur wide angle viewing shooting that the utility model above-described embodiment provides is observed only for wide-angle microspur
The field of view angle of equipment is more than the application of 2 times of Brewster's angles (about 110 °).
In a particular application, the device that the microspur wide angle viewing that above-described embodiment provides is shot is improved, can also reached
To avoid glass plate reflective into wide-angle microspur facilities for observation effect, wherein：
The angle of improved procedure one, the optical axis light source and glass-board surface, it is set to regarding less than wide-angle microspur facilities for observation
The half of rink corner degree, now it can enter camera lens without reflection light.Under this improved procedure, polariscope, glass plate two can be cancelled
Face is also without plating antireflective film, and light source is also not necessarily limited to directional light, as long as meeting this condition：Light source optical axis
With the angle of glass surface<[(angle of visual field-light source angle of divergence)/2].The defects of this improved procedure is that light source obtains cloth in low level.
Improved procedure two：In Fig. 4, ray R is the reflection light that can enter camera lens, is thus clearly visible, whole light
Only influence whether to observe in the source of parallel light unit of the second layer (signal) in the module of source.If the second layer (signal and
The optical axis angle of source of parallel light unit) is changed, then the directional light that source of parallel light unit projects still shines glass plate
The old place, but the reflection light for not having glass plate can enter camera lens.Under this improved procedure, polariscope, glass can be cancelled
Glass plate two sides is also without plating antireflective film, and light source incidence angle is also without being confined in Brewster's angle.But this improved procedure
The defects of be that the light source incidence angle of this part and others are inconsistent.
Embodiment provided by the utility model can be applied to the technical fields such as monochromatic light, visible ray, infrared light and ultraviolet light,
Wherein when LED is as white light source, in order to reduce aberration and improve antireflective film effect, it is desirable to colour temperature be 12000K ±
5%.
The utility model embodiment is mainly used in wide angle viewing field, and observation visual angle is more than 2 times of Brewster's angles.
Improved procedure one and the embodiment of improved procedure two are mainly used in observation of the observation visual angle less than 2 times of Brewster's angles
Field.
Following parameter is very big to the influential effect for eliminating flare, and the parameter in any one has tiny deviation all can
Effect is had a strong impact on, including：
A, in source of parallel light unit and source of parallel light module each unit light ray parallel degree；
B, if bilateral all directional lights lighting, the optical axis of both sides light source will be strictly parallel to approximately the same plane；Otherwise
Because polariscope can not filter the light at two different polarization angles simultaneously, and there is reflected light to leak into and come.For these reasons, in this reality
Apply in example and two adjacent directional lights of cloth are unable to (in addition to improved procedure one and improved procedure two).
C, the optical axis of enlarging lens and the optical axis of LED need to be precisely coincident, and the light-emitting area of LED, which must be accurately located at, puts
On the focal plane of big eyeglass；
D, the accurate adjustment and fixation of polariscope；
E, the optical axis of source of parallel light module is accurately fixed on Brewster Angle Position；
F, between each source of parallel light unit light field join position light intensity need to through processing, with reach seamlessly transit, seamless company
Connect, leave no trace.If the handing-over position light field between each source of parallel light unit is not handled according to standard, do not influence to eliminate reflection
The effect of hot spot, but the optical uniformity of whole light field can be influenceed, so as to have influence on the effect of observation and quality.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of device of microspur wide angle viewing shooting, it is characterised in that described device includes source of parallel light module, wide-angle microspur
Facilities for observation, pressing plate and glass plate, the source of parallel light module include some source of parallel light units, wherein, the pressing plate and institute
State and be used between glass plate place observation thing；
The wide-angle microspur facilities for observation is located at the inner side of the glass plate；
Each source of parallel light unit is used to be placed according to presetting angle so that the source of parallel light unit transmitting is put down
Row light caused reflected light after the glass plate is reflected will not enter the wide-angle microspur facilities for observation.
2. device as claimed in claim 1, it is characterised in that described device also includes polariscope；Wherein, the pressing plate and institute
State and be used between glass plate place observation thing；
The wide-angle microspur facilities for observation is located at the inner side of the glass plate, and the field of view angle of the wide-angle microspur facilities for observation is big
In or equal to 2 times of Brewster's angles；
The angle of the optical axis and the camera lens optical axis of the wide-angle microspur facilities for observation of the directional light of the source of parallel light module transmitting
It is fixed on Brewster's angle；
The directional light of the source of parallel light module transmitting carries out reflection through the glass plate and produces reflected light, and the polariscope is used for
Eliminate the reflected light for being incident to the wide-angle microspur facilities for observation.
3. device as claimed in claim 2, it is characterised in that the wave-length coverage of the polariscope and the source of parallel light module
Injection directional light optical wavelength range it is consistent.
4. device as claimed in claim 2, it is characterised in that the tow sides of the glass plate are coated with antireflective film respectively.
5. device as claimed in claim 2, it is characterised in that the source of parallel light unit includes shell, has on the shell
Standby mosaic texture, some source of parallel light units carry out split, each source of parallel light by the mosaic texture of the shell
The depth of parallelism for the directional light that unit projects is less than 3 degree.
6. device as claimed in claim 5, it is characterised in that the source of parallel light unit includes shell, luminescent device and standard
Straight device；
The luminescent device, the collimater is incident to for producing the diverging light of preset wave-length coverage, and by the diverging light
Part；
The collimating element, for the diverging light to be collimated into directional light and projected；
The shell, for installing and fixing the luminescent device and the collimating element, so that the optical axis of the collimating element
With the optical axis coincidence of the luminescent device, and the light-emitting area of the luminescent device is set to be located at the focal plane of the collimating element.
7. device as claimed in claim 6, it is characterised in that the luminescent device is single lamp LED lamp panel, single lamp LED lamp panel
On the light-emitting area of LED be located at the focal plane of the collimating element.
8. device as claimed in claim 7, it is characterised in that the power of the LED is 0.5 watt to 1 watt, the LED
Lighting angle scope be 30 degree to 60 degree.
9. device as claimed in claim 6, it is characterised in that the collimating element be rectangle enlarging lens, the amplification
The focal length of eyeglass is 5 millimeters, and the length-width ratio of the enlarging lens matches with observing the length-width ratio of visual field；
The length-width ratio of the light-emitting window of the shell matches with the length-width ratio of the enlarging lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720470643.1U CN206876955U (en) | 2017-04-28 | 2017-04-28 | The device of microspur wide angle viewing shooting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720470643.1U CN206876955U (en) | 2017-04-28 | 2017-04-28 | The device of microspur wide angle viewing shooting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206876955U true CN206876955U (en) | 2018-01-12 |
Family
ID=61343247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720470643.1U Withdrawn - After Issue CN206876955U (en) | 2017-04-28 | 2017-04-28 | The device of microspur wide angle viewing shooting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206876955U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896493A (en) * | 2017-04-28 | 2017-06-27 | 深圳聚融科技股份有限公司 | The device that microspur wide angle viewing shoots |
-
2017
- 2017-04-28 CN CN201720470643.1U patent/CN206876955U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896493A (en) * | 2017-04-28 | 2017-06-27 | 深圳聚融科技股份有限公司 | The device that microspur wide angle viewing shoots |
| CN106896493B (en) * | 2017-04-28 | 2023-05-23 | 深圳聚融科技股份有限公司 | Device for micro wide-angle observation shooting |
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Granted publication date: 20180112 Effective date of abandoning: 20230523 |