CN102109736B - Super-picture view finder and view-finding method - Google Patents

Abstract

The invention relates to the technical fields of image acquisition and monitoring, in particular to a super-picture view finder and a view-finding method. The viewfinder comprises a shell, adjusting rods and mirrors. In the method, the central symmetric axis of the lens of image acquisition equipment is taken as an x axis; a first adjusting rod and a second adjusting rod are positioned at center points of lenses, the center points of the lenses are on the same vertical line, and the vertical line is taken as a y axis; the distance between the front end of the lens and an imaging chip is set as a, the height of the imaging chip is set as b, the total length of the equipment for external dimension is set as c, and the total height of the equipment for the external dimension is set as d; when the needed view-finding object is projected onto the upper lens via a lower lens, the distance between the first adjusting rod and the original point of the coordinate axes satisfies an expression shown in the specification, the included angle gamma between the front face of an upper lens and the x axis satisfies an expression shown in the specification, and the position of the lower lens and an included angle are adjusted according to different areas; when the needed view-finding object is projected onto the lower lens via the upper lens, the situation is symmetrically opposite to the first situation; and finally positions at which objects beyond the view-finding range of the image acquisition equipment are located are fully covered.

Description

A kind of ultra picture view finder and the method for finding a view

[technical field]

The invention relates to image and image collection and monitoring technique field, the specifically a kind of ultra picture view finder and the method for finding a view.

[background technology]

Along with the security monitoring application and development, the range of application of video camera constantly enlarges thereupon, and existing image capture device is made up of video camera and camera lens, and its viewfinder range is complete continuous, but receives the parameter limit of video camera and camera lens itself, has the blind area of finding a view.When needs are taken in certain object image that has now outside the viewfinder range synchronously, will make viewfinder range become big.Enlarge viewfinder range, the following method of general now employing:

1, through turning the focal length of camera lens down, but can cause the object of taking the photograph to dwindle like this, do not reach the identification requirement, and the adjustment of lens focus have lower limit.

2, through after move the position of collecting device, the same like this object of taking the photograph that can make diminishes, and does not reach the requirement of identification, and limited by installing environmental conditions till the equipment sometimes, can't move backward.

3, adopt the video camera or the wideer camera lens of focal range of more extensive pixel, so just brought increasing considerably on the use cost.With the technical grade ccd video camera is example, and the price difference between 1,400,000,2,000,000, the 5000000 Pixel-level products is about thousands of units and even nearly ten thousand yuan.

4, on the existing equipment basis, set up collecting device again, make up with second cover or more cover camera lens and accomplish the requirement of finding a view, can bring increasing considerably of use cost equally like this.

[summary of the invention]

The objective of the invention is according to optical principle; Before camera lens, increase a view finder; With the attachment device of a little cost, break through the hardware constraints of image capture devices such as camera lens, in the camera lens scene; Not hinder the key frame image information that must have is prerequisite, obtains the outer object image of position arbitrarily of the original viewfinder range of image capture device camera synchronously.

For realizing above-mentioned purpose, design a kind of ultra picture view finder, comprise shell, adjuster bar and mirror; It is characterized in that described shell is made up of anti-" L " type left side sheet (1), the right sheet (2) of " L " type and anter (3); A left side sheet and right sheet equal and opposite in direction, about sheet become 90 ° to be connected with the left and right sides of anter respectively at same horizontal level, anter center upper portion position is provided with a circular hole bayonet socket; About two the first half respectively be provided with one first regulating tank group (4-1); Be provided with first adjuster bar (5-1) in the first regulating tank group (4-1) of two first halves about described, described first adjuster bar is provided with eyeglass, about two Lower Halves respectively be provided with the second regulating tank group (4-2) reverse with regulating tank group (4-1); Be provided with second adjuster bar (5-2) in the described second regulating tank group (4-2); Described second adjuster bar is provided with down eyeglass, and described upper and lower eyeglass is done 360 ° of rotations with first and second adjuster bars, according to optical principle and pick-up lens requirement; Upper and lower eyeglass is adjusted by actual reflection angle requirement, be fixed on adjuster bar in the regulating tank.

Described anti-" L " type left side sheet and the right sheet of " L " type, the egative film both sides of the edge that externally turn down out are provided with mounting hole.

Described shell anter is provided with a circular hole bayonet socket, and the bayonet socket somewhat larger in diameter makes the image capture device pick-up lens embed fully in image capture device pick-up lens diameter.

The described first regulating tank group (4-1) comprises a vertical regulating tank and three isometric horizontal adjustment grooves; Said vertical regulating tank top is connected with the horizontal adjustment groove right-hand member of the top; Said vertical regulating tank 3/4 place is connected with the horizontal adjustment groove right-hand member of below; Said three horizontal adjustment groove equidistant intervals are arranged UNICOM between said vertical regulating tank and the horizontal adjustment groove.

The described second regulating tank group (4-2) comprises a vertical regulating tank and three isometric horizontal adjustment grooves; Said vertical regulating tank bottom is connected with the horizontal adjustment groove right-hand member of below; Said vertical regulating tank 1/4 place is connected with the horizontal adjustment groove right-hand member of the top; Said three horizontal adjustment groove equidistant intervals are arranged UNICOM between said vertical regulating tank and the horizontal adjustment groove.

Described eyeglass adopts surperficial aluminum plating glass mirror board or PV superpolyester mirror board or plastic-aluminum mirror board or stainless steel mirror board.

The outside of said shell can be equipped with protective cover or directly be installed on the interior forward end that image capture device carries protective cover.

A kind of method of finding a view of ultra picture view finder; It is characterized in that this method of finding a view is the x axle with the central symmetry axis of image capture device camera lens, all on the central point of eyeglass, described central point is on same vertical curve for first adjuster bar and second adjuster bar; With described vertical curve is the y axle; Distance is a between camera lens front end and the imager chip, and the imager chip height is b, and equipment outside dimension total length is c; Equipment outside dimension overall height is d, and the described eyeglass central point of going up is that first adjuster bar and x axle vertical direction distance are h _On, described center of lens point down is that second adjuster bar and x axle vertical direction distance are h _Down, last front lens surface and x axle clamp angle are made as γ, and following front lens surface and X axle clamp angle are made as δ, when the required object of finding a view projects eyeglass via following eyeglass earlier, the distance of described first adjuster bar and coordinate axis initial point

Described front lens surface and the x axle clamp angle of going up

Described lens position down and angle are following:

A, the required object coordinates of finding a view are in the coordinate axis four-quadrant between collecting device dead astern center line to the equipment lower edge; Behind required find a view object center point coordinate and the image capture device along between horizontal range be e; Requiredly find a view between object center point coordinate and the equipment lower edge vertically that distance is f, described second adjuster bar and x wheelbase be front lens surface and x axle clamp angle

under

is described

B, the required object coordinates of finding a view are in the coordinate axis four-quadrant between the horizontal line of equipment lower edge and second adjuster bar place, and required object center point coordinate and the described second adjuster bar horizontal range of finding a view is j,

Vertically distance is k; In this scope; Second adjuster bar need not adjusted the position, described front lens surface and x axle clamp angle

down

C, required object coordinates second adjuster bar in the coordinate axis four-quadrant of finding a view belong in the following scope of horizontal line; Required object center point coordinate and the described second adjuster bar horizontal range of finding a view is j; Vertically distance is k; In this scope; Second adjuster bar need not adjusted the position, described front lens surface and x axle clamp angle

down

D, required find a view object coordinates in coordinate axis second quadrant except that image capture device original viewfinder range, go up directly over the eyeglass in the position range the scope; Required object center point coordinate and the described second adjuster bar horizontal range of finding a view is j; Vertically distance is k; In this scope; Second adjuster bar need not adjusted the position, described front lens surface and x axle clamp angle

down

E, the required object coordinates of finding a view are on coordinate axis second quadrant in the scope directly over the eyeglass; Required find a view object center point coordinate and x axle vertically distance be r; With y axle horizontal distance be i; Second adjuster bar and y axle horizontal distance are n; Described eyeglass lengthwise position does not down need adjustment in this scope; Only need laterally adjust to the position that to see the required object of finding a view, following front lens surface and x axle clamp angle

described front lens surface and x axle clamp angle

of going up

When the required imaging object of finding a view projected down eyeglass via last eyeglass earlier, the position of the required object of finding a view was in coordinate axis one, three quadrants, and symmetry is opposite just with first kind of situation.

The method of finding a view of said view finder can realize all standing to the position at the outer object place of image capture device viewfinder range.

In final image, the image of the required object of finding a view appears at the final image upper right corner, forms " picture-in-picture ".

The characteristics of the invention are said ultra picture view finders; Not need through dwindle collecting device pick-up lens focal length, after move a whole set of image capture device, increase substantially cost upgrading video camera and camera lens and increase methods such as collecting device; In not losing the home court scape in the object identification degree; The object that viewfinder range is outer projects in the image capture device, and the image that forms " picture-in-picture " is formed.Have simple in structurely, the cost cost is lower, advantage easy to use.

[description of drawings]

Fig. 1 is the product configurations figure of the invention;

Fig. 2 is the light reflection principle figure of the invention;

Fig. 3 is the invention product design sketch;

Fig. 4 is the invention product embodiments scene graph;

Fig. 5 is the invention product embodiments picture figure;

Fig. 6～Figure 15 is the find a view planimetric coordinates design of graphics of principle of the invention;

With reference to Fig. 1, the 1st, anti-" L " type left side sheet, the 2nd, the right sheet of " L " type, the 3rd, anter, 4-1 and 4-2 are to reconcile the groove group, and 5-1 and 5-2 are adjuster bars, and 10-1 and 10-2 are eyeglasses;

With reference to Fig. 2, the 6th, the video camera imaging chip, the 7th, camera lens, the 8th, the viewfinder range of image capture device itself, the 9th, the object outside the viewfinder range, 10-1 are the last eyeglasses in the ultra picture view finder, 10-2 is the following eyeglass in the ultra picture view finder;

With reference to Fig. 3, the 11st, picture in the viewfinder range, the 12nd, the outer object picture of the viewfinder range that ultra picture view finder is throwed;

With reference to Fig. 4, the 13rd, install the image capture device of product of the present invention additional, α is the angle of coverage of image capture device viewfinder range, the 14th, the signal lamp of hypotelorism;

With reference to Fig. 5, the 14th, the signal lamp that viewfinder range is outer, the 15th, the number-plate number, the 16th, stop line;

With reference to Fig. 6, the 17th, camera lens front end, the 6th, imager chip;

With reference to Fig. 8, the 18th, image capture device viewfinder range, 19-23 are the fixing minute surfaces of going up, adjustment down under the minute surface situation for the outer overlayable position range of object product of the present invention of viewfinder range;

With reference to Figure 14, the 18th, the image capture device viewfinder range, 19 '-23 ' is fixing minute surface down, in the adjustment under the minute surface situation for the viewfinder range overlayable position range of object product of the present invention outward; With reference to Figure 15, the 18th, the image capture device viewfinder range, the 24th, for the position coverage of the outer object product of the present invention of viewfinder range.

[embodiment]

Below in conjunction with accompanying drawing the invention is explained further details.

With reference to Fig. 1, the shell of the invention constitutes left sheet and right sheet equal and opposite in direction by anti-" L " type left side sheet (1), the right sheet (2) of " L " type and anter (3); About sheet become 90 ° to be connected with the left and right sides of anter respectively at same horizontal level; Anter center upper portion position is provided with a circular hole bayonet socket, about two the first half respectively be provided with one first regulating tank group (4-1), be provided with first adjuster bar (5-1) in the first regulating tank group (4-1) of two first halves about described; Described first adjuster bar is provided with eyeglass (10-1); About two Lower Halves respectively be provided with the second regulating tank group (4-2) reverse with the first regulating tank group (4-1), be provided with second adjuster bar (5-2) in the described second regulating tank group (4-2), described second adjuster bar is provided with down eyeglass (10-2); Described upper and lower eyeglass is done 360 ° of rotations with first and second adjuster bars; According to optical principle and pick-up lens requirement, upper and lower eyeglass is adjusted by actual reflection angle requirement, be fixed on adjuster bar in the regulating tank.

Embodiment one

Plane coordinate system at first is set, with reference to Fig. 6, earlier with the interior details incomplete structure of image capture device, regards as by representing that wherein AB representes the camera lens front end forming of 2 rectangles, CD representes the imager chip that video camera is inner, is the x axle with the central symmetry axis of this equipment.Other supplementary structures that will surpass the picture view finder again omit, and only represent with upper and lower eyeglass 10-1,10-2 that regulating shaft is on the central point of eyeglass, and establishing the first adjuster bar loca is H _On, the second adjuster bar loca is H _DownMake H earlier _OnWith H _DownOn same vertical curve, be the y axle with this vertical curve; Eyeglass lays respectively at the both sides of x axle, is respectively h with the distance of x axle _OnWith h _DownThe distance relation of ultra picture view finder and image capture device, other length, angle setting are seen Fig. 6.

1, the outer object of viewfinder range projects the situation of eyeglass earlier via following eyeglass

The at first fixing first adjuster bar position of going up eyeglass, make its coordinate (0, h _On) with the position of collecting device relation

With reference to Fig. 7, make

i.e.

∴

Next regulate the eyeglass angle, we will make QH _OnBe incident ray, H _OnC is a reflection ray:

Make TH _On⊥ H _OnP, above light reflection meets when said, TH _OnShould divide ∠ QH equally _OnC, establishing ∠ BAC is α,

∵

∴ $\mathrm{\&gamma;}=\frac{\mathrm{<figure-callout\; id="2"\; label="arctg\; a\; b"\; filenames="HDA0000044577470000011.png,HDA0000044577470000032.png"\; state="\{\{state\}\}">arctg</figure-callout>}\frac{a}{b}\frac{}{}}{2}$

After fixing eyeglass, we can be through position, the angular adjustment of eyeglass obtain the object image in the scope shown in figure below down.

With reference to Fig. 8, the outer overlayable position range of object of viewfinder range has divided 5 zones.Position, the angular adjustment method of eyeglass are down set forth in the subregion:

A, with reference to Fig. 9, in the scope of collecting device dead astern central point to equipment lower edge, i.e. object coordinates In, s+c＜x＜∞, $-\frac{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="HDA0000044577470000011.png,HDA0000044577470000032.png"\; state="\{\{state\}\}">d</figure-callout>}}{2}\&le;y\&le;0$

In this scope, the regulating shaft position of following eyeglass need adjust according to the relative distance of object and collecting device.

If FM length is e,

Length is f, ∠ QFH _Down=θ ₁,

Must make θ ₁＞θ ₂, that is, and make down eyeglass regulating shaft coordinate (0 ,-h _Down) in:

i.e. be

∴

We will make Be incident ray, H _DownH _OnBe reflection ray:

Make TH _Down⊥ H _DownP, above light reflection meets when said, TH _DownShould divide ∠ QH equally _DownF establishes Be β,

∵

B, shown in figure 10; Object coordinates y value is between collecting device lower edge to following eyeglass regulating shaft; Be in the object coordinates

O＜x＜∞ ,-h _Down＜y＜y _{The image capture device lower edge}

In this scope, the regulating shaft position of following eyeglass need not adjust.

We will make

Be incident ray, H _DownH _OnBe reflection ray:

Make TH _Down⊥ H _DownP when said, should divide equally under the TH above light reflection meets

If

Be ε, H _DownM length is j,

Length is k:

∵

∴

C, shown in figure 11; The eyeglass regulating shaft was with in the scope of lower edge under the outer object y value of viewfinder range was situated between; Be in the object coordinates

0＜x＜∞ ,-∞＜y≤-h _Down

In this scope, the regulating shaft position of following eyeglass need not adjust.

We will make

Be incident ray, H _DownH _OnBe reflection ray:

Make TH _Down⊥ H _DownP, above light reflection meets when said, TH _DownShould divide equally

If

Be ε, H _DownM length is j,

Length is k:

∵

∴

D, shown in figure 12; Object is arranged in the position range the scope of second quadrant directly over viewfinder range and last eyeglass; Be that establishing eyeglass length is l in the object coordinates

:

∵

∴

y _{The viewfinder range edge}＜y＜∞

In this scope, the regulating shaft position of following eyeglass need not adjust.

We will make

Be incident ray, H _DownH _OnBe reflection ray:

Make TH _Down⊥ H _DownP when said, should divide equally under the TH above light reflection meets

If

Be ε, H _DownM length is j,

Length is k:

∵

∴

E, shown in figure 13; Object is positioned at the scope directly over the eyeglass, promptly in the object coordinates

:

∵ $-\mathrm{Cos}\frac{\mathrm{Arctg}\frac{a}{\mathrm{<figure-callout\; id="2"\; label="b"\; filenames="HDA0000044577470000011.png,HDA0000044577470000032.png"\; state="\{\{state\}\}">b</figure-callout>}}}{2},$ $\frac{1}{2}\&le;x\&le;0,$ y _{The viewfinder range edge}＜y＜∞

In this scope; The lengthwise position of the regulating shaft of following eyeglass need not adjust, and only need laterally adjust to the place of visible object

.We establish the object space coordinate for (i, r), lower shaft transfers to coordinate (n ,-h _Down).We will make

Be incident ray, H _DownH _OnBe reflection ray:

Make TH _Down⊥ H _DownP, above light reflection meets during said situation, TH _DownShould divide equally

Remake a M (i ,-h _Down), then

⊥ H _DownM.If ∠ is PTH _Down=α ₁,

∠ PUH _Down=∠ VUO=α ₃, ∠ UVM=β ₁, ∠ H _DownOV=β ₂:

∵α1＝α2+α3，β1＝β2+2α2

∴180°-δ＝90°-α ₁＝90°-(α ₂+α ₃)＝90°-[α ₂+(90°-β ₁)]＝90°-{α ₂+[90°-(β ₂+2α ₂)]}

∴

∵

∴

Last eyeglass angle:

∵

∴

When object outside the viewfinder range earlier projected down the situation of eyeglass via last eyeglass, the position range of object is first, in the four-quadrant, and was with reference to Figure 14, just the opposite with first kind of situation.

So the product with reference to Figure 15 the invention can be realized 360 ° of all standings to the outer object of viewfinder range.

Embodiment two

Illegal image forensic acquisition system is an example to make a dash across the red light in the intelligent transportation industry:

The principle of the illegal image forensic acquisition system of making a dash across the red light in the intelligent transportation industry is to utilize to be embedded in the inductive coil under the road junction roadway; Pass through wagon detector; According to vehicle through the time changes of magnetic field detect and whether have vehicle to pass through; According to detected belisha beacon state, judge whether vehicle makes a dash across the red light again.When the indication of vehicle traffic signal violation is made a dash across the red light; Capture relevant informations such as time that controller remembers that automatically vehicle passes through, time that the signal lamp red light is lighted, address, crossing, crossing direction, track; And the on-the-spot digital pictures of control digital image collection equipment shooting illegal incidents, be combined into a vehicle illegal data recording.According to containing in the illegal image forensic that requires in Ministry of Public Security's standard (GB/T496-2009) to make a dash across the red light---number plate of vehicle, stop line and these three elements of opposite signal lamp clearly.

With reference to Fig. 4 since between certain crossing image capture device and the signal lamp 14 apart from too near; Make signal lamp not within the viewfinder range of image capture device itself; And because actual conditions restriction; Image capture device can't move backward, through the words of turning focal length expansion viewfinder range down the number plate of vehicle identification is descended, and does not reach the software identification requirement.So in final imaging, lack the relevant information of signal lamp.In such cases, be installed in the place ahead of image capture device pick-up lens to ultra picture view finder, bayonet socket on the view finder anter and pick-up lens coincide and are inserted in.Confirm upper and lower eyeglass and horizontal direction angle angle with reference to Fig. 2 according to distance and incident angle adjustment adjuster bar between the true altitude of signal lamp and signal lamp and eyeglass 10-1, the 10-2; Make the beacon signal image projection to following eyeglass; According to principle of reflection; The beacon signal image is reflected on the eyeglass, and after reflecting once more according to principle of reflection, it is as shown in Figure 5 that the beacon signal image can appear at the upper right corner of final imaging picture.

Claims (3)

1. a ultra picture view finder comprises shell, adjuster bar and mirror, it is characterized in that described shell is made up of anti-" L " type left side sheet (1), the right sheet (2) of " L " type and anter (3); Left side sheet and right sheet equal and opposite in direction; About sheet become 90 ° to be connected with the left and right sides of anter respectively at same horizontal level, anter center upper portion position is provided with a circular hole bayonet socket, about two the first half respectively be provided with one first regulating tank group (4-1); Be provided with first adjuster bar (5-1) in the described first regulating tank group (4-1); Described first adjuster bar is provided with eyeglass (10-1), about two Lower Halves respectively be provided with the second regulating tank group (4-2) reverse with the first regulating tank group (4-1), be provided with second adjuster bar (5-2) in the described second regulating tank group (4-2); Described second adjuster bar is provided with down eyeglass (10-2); Described upper and lower eyeglass is done 360 ° of rotations with first and second adjuster bars, according to optical principle and pick-up lens requirement, upper and lower eyeglass is adjusted by actual reflection angle requirement; Be fixed on adjuster bar in the regulating tank

The first regulating tank group (4-1) of two first halves comprises a vertical regulating tank and three isometric horizontal adjustment grooves about said; Said vertical regulating tank top is connected with the horizontal adjustment groove right-hand member of the top; Said vertical regulating tank 3/4 place is connected with the horizontal adjustment groove right-hand member of below; Said three horizontal adjustment groove equidistant intervals are arranged, UNICOM between said vertical regulating tank and the horizontal adjustment groove, said about the second regulating tank group (4-2) of two Lower Halves comprise a vertical regulating tank and three isometric horizontal adjustment grooves; Said vertical regulating tank bottom is connected with the horizontal adjustment groove right-hand member of below; Said vertical regulating tank 1/4 place is connected with the horizontal adjustment groove right-hand member of the top, and said three horizontal adjustment groove equidistant intervals are arranged UNICOM between said vertical regulating tank and the horizontal adjustment groove.

2. the method for finding a view of a ultra picture view finder as claimed in claim 1; It is characterized in that this method of finding a view is the x axle with the central symmetry axis of image capture device camera lens, all on the central point of eyeglass, described central point is on same vertical curve for first adjuster bar and second adjuster bar; With described vertical curve is the y axle; Distance is a between camera lens front end and the imager chip, and the imager chip height is b, and equipment outside dimension total length is c; Equipment outside dimension overall height is d, and the described eyeglass central point of going up is that first adjuster bar and x axle vertical direction distance are h _On, described center of lens point down is that second adjuster bar and x axle vertical direction distance are h _Down, last front lens surface and x axle clamp angle are made as γ, and following front lens surface and X axle clamp angle are made as δ, when the required object of finding a view projects eyeglass via following eyeglass earlier, the distance of described first adjuster bar and coordinate axis initial point

Described front lens surface and the x axle clamp angle of going up

Described lens position down and angle are following:

A, the required object coordinates of finding a view are in the coordinate axis four-quadrant between collecting device dead astern center line to the equipment lower edge; Behind required find a view object center point coordinate and the image capture device along between horizontal range be e; Requiredly find a view between object center point coordinate and the equipment lower edge vertically that distance is f, described second adjuster bar and x wheelbase be front lens surface and x axle clamp angle under

is described

B, the required object coordinates of finding a view are in the coordinate axis four-quadrant between the horizontal line of equipment lower edge and second adjuster bar place; Required object center point coordinate and the described second adjuster bar horizontal range of finding a view is j; Vertically distance is k; In this scope; Second adjuster bar need not adjusted the position, described front lens surface and x axle clamp angle

down

C, required object coordinates second adjuster bar in the coordinate axis four-quadrant of finding a view belong in the following scope of horizontal line; Required object center point coordinate and the described second adjuster bar horizontal range of finding a view is j; Vertically distance is k; In this scope; Second adjuster bar need not adjusted the position, described front lens surface and x axle clamp angle

down

D, required find a view object coordinates in coordinate axis second quadrant except that image capture device original viewfinder range, go up directly over the eyeglass in the position range the scope; Required object center point coordinate and the described second adjuster bar horizontal range of finding a view is j; Vertically distance is k; In this scope; Second adjuster bar need not adjusted the position, described front lens surface and x axle clamp angle

down

E, the required object coordinates of finding a view are on coordinate axis second quadrant in the scope directly over the eyeglass; Required find a view object center point coordinate and x axle vertically distance be r; With y axle horizontal distance be i; Second adjuster bar and y axle horizontal distance are n; Described eyeglass lengthwise position does not down need adjustment in this scope; Only need laterally adjust to the position that to see the required object of finding a view, following front lens surface and x axle clamp angle

described front lens surface and x axle clamp angle

of going up

When the required imaging object of finding a view projected down eyeglass via last eyeglass earlier, the position of the required object of finding a view was in coordinate axis one, three quadrants, and symmetry is opposite just with first kind of situation.

3. the method for finding a view of a kind of ultra picture view finder as claimed in claim 2 is characterized in that can realizing all standing to the position at the outer object place of image capture device viewfinder range.

Images