CN206517541U - A kind of low-light (level) wide-angle light box - Google Patents

Abstract

The utility model is related to the technical field of image detection, more particularly, to a kind of low-light (level) wide-angle light box.Test box, the testing jig of carrying imaging device set including a closing, it is arranged between the testing jig and the test box and the testing jig can be driven and telescoping mechanism that the test box is moved towards, the two ends of the telescoping mechanism is connected with the testing jig and the test box respectively；It one is provided with the testing jig can fix relatively described head on the head of the imaging device, the test box and offer an opening for being available for the imaging device to shoot.By the way that imaging device and the test box (dark place) are provided separately, and telescoping mechanism, the imaging device and the test box move toward one another can be driven, in this way, can one test environment of rapid build, and when testing the imaging device of different wide-angles, telescoping mechanism is changed by adjustment, you can quick adjustment, relieve test dead angle, testing efficiency is greatly improved, the category of test is enriched.

Description

A kind of low-light (level) wide-angle light box

Technical field

The utility model is related to the technical field of image detection, more particularly, to a kind of low-light (level) wide-angle light box.

Background technology

At present, VR cameras, panorama camera, fisheye camera, mobile phone camera, tablet personal computer camera, slr camera, civilian And professional camera, automobile camera head, security monitoring camera, medical imaging obtain equipment etc., these imaging devices or Digital image collection system, is directed to the evaluation and detection of picture quality, by the detection environment or scene of the standard of building, These equipment or the image quality of image capturing system are detected using the detection method of standard, imaging can be objectively responded out and set The performance of standby or image-taking system.Thus, build detection or evaluate imaging device or the mark of imaging system images quality Quasi is most important.Picture quality currently used for general camera, wide-angle image equipment detects environmental structure occupied ground Larger, particularly when detecting the image quality of low-light (level), environment difficulty realizes standardization control, and Testing index can not be accurately anti- Reflect the performance of imaging device.And both at home and abroad temporarily without a kind of can providing the low photograph environmental Kuznets Curves condition of standard and include general shooting The standardization detection means of the first-class imaging device image quality detection of head, wide-angle imaging.

However, on the market it is existing be used for imaging device image detection mainly using build specialty detection dark place, dark place Wall, ceiling, floor etc. all should be neutral grays, and other articles are also grey or achromaticity.Such dark place finishing rule Lattice require higher, and to realize the detection of multiple projects, the outfit of dark place mainly includes：The standard illuminants light source of multi color temperature, light-metering It is equipment, lookout terrace or backboard, identification resolution chart, color rendition test card, noise test card, dynamic range test card, abnormal Become the reflectance charts such as test card.When needing detection imaging device performance parameter, corresponding test card is selected first, is hung It is placed on backboard；Secondly using colour temperature, illumination, uniformity of illumination of photometry apparatus Calibrating source etc.；Then adjust to be detected Camera or imaging device and captured test card position, shooting image；Finally phase is calculated using specialty analysis software The parameter answered.

It is larger that prior art builds experimental site, it is desirable to builds fixed standard dark place, and dark place finishing is with a higher standard；Secretly During the experimental situation brightness regulation in room there is error, especially low-light (level) environment and be difficult to simulation or even be difficult in Accuracy control Realize, influence imaging device detection accuracy or very the test event of low-light (level) can not be realized；Being used existing technologies scheme more Single surface light source or two-sided light source irradiation test card, the illumination uniformity regulation on test card surface are difficult, are especially vertically oriented Illumination uniformity can not almost be adjusted；Light source and imaging device, the position of test card and angle adjustment are numerous in prior art It is trivial, cause uniform illumination sexual deviation between camera optical axis center correspondence test point and marginal test point larger, such as wide-angle camera Test can also exist test dead angle, limit the test-types of imaging device, such as VR cameras, panorama camera, fisheye camera Ultra-wide angle equipment is difficult to accurate test；Prior art uses reflection type test wrapper in ultra-wide angle camera testing field Border is simulated, and is had a disadvantage that：1) test of the projects such as wide dynamic, noise is difficult to, causes test event not comprehensive；2) wide-angle Camera view scope is wide, and reflective illumination uniformity is difficult to accurate control, causes measurement result repeatable poor.

In consideration of it, it is real be necessary to design a kind of be easy to build and the standard dark place that detects a variety of imaging devices can be applicable.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of low-light (level) wide-angle light box, it is intended to solve existing Have in technology, dark place is built cumbersome and the problem of be unable to compatibility test a variety of imaging devices.

In order to solve the above technical problems, the technical scheme that the utility model is used is：A kind of low-light (level) wide-angle standard lamp Case, includes test box that a closing sets, carries the testing jig of imaging device, be arranged at the testing jig and the test box it Between and telescoping mechanism that the testing jig and the test box can be driven to move towards, the two ends of the telescoping mechanism respectively with institute State testing jig and test box connection；One is provided with the testing jig can fix the head of the imaging device, the survey Relatively described head offers an opening for being available for the imaging device to shoot on examination case.

Further, the telescoping mechanism is in hinge shape, including is intersected and left contiguous block that middle part is rotatably connected With right contiguous block, along the telescopic direction of the telescoping mechanism, lead between the two adjacent left contiguous blocks and the right contiguous block Cross end and rotate connection.

Further, the telescoping mechanism is in roller shutter shape, including rollable connect band and is available for the connection band winding Coiled rotating bar, one end of the connect band is fixedly connected on the test box or the testing jig, the connect band it is another One section is fixedly connected on the rotating bar, and the rotating bar is arranged at the testing jig or the test box.

Further, the test box includes framework and the framework is covered to closed side plate, wherein, it is relatively described to survey The side plate that examination frame is set is followed successively by front side board and back side panel, and the opening is opened in the center of the front side board, it is described before Illuminating part is evenly arranged in the inner peripheral wall of side plate, test card is positioned on the inwall of the back side panel.

Further, the illuminating part is LED light bar, and the LED light bar is four, is separately positioned in the front side board Four edges of wall.

Further, four corners of the front side board inwall are provided with a lamp bead.

Further, the testing jig includes " mouth " font framework, is vertically arranged in described " mouth " font framework Two montants, and two cross bars that relatively described " mouth " font framework is laterally set up in parallel, cross bar described in two pass through a bearing It is fixed on by the montant side, the head is arranged on the cross bar.

Further, the bearing is fixed on the montant by eccentric fixed seat, and can along the montant axis Direction is moved up and down, and the head is fixed on the cross bar by eccentric fixed seat, and can be along the axis side of the cross bar To doing left and right transverse shifting.

Further, between the testing jig and the test box covered with maskable extraneous veiling glare and can fold draw in Ceiling cover.

Further, the bottom of the testing jig, which is provided with one, can store the first receiver of the stretching structure, described First receiver has first containing cavities, and one end active link of the stretching structure is interior with first receiver Wall.

It is compared with the prior art, the low-light (level) wide-angle light box that the utility model is provided, by by imaging device and institute State test box (dark place) to be provided separately, and a telescoping mechanism is set, the imaging device and the test box can be driven to transport in opposite directions It is dynamic, in this way, can one test environment of rapid build, and when testing the imaging device of different wide-angles, telescopic machine is changed by adjustment Structure, you can quick adjustment, relieves test dead angle, greatly improves testing efficiency, enrich the category of test, market prospects are wide It is wealthy.

Brief description of the drawings

Fig. 1 is a kind of schematic perspective view for low-light (level) wide-angle light box that the utility model embodiment is provided.

Fig. 2 is a kind of schematic elevation view for low-light (level) wide-angle light box that the utility model embodiment is provided.

Fig. 3 is a kind of schematic top plan view for low-light (level) wide-angle light box that the utility model embodiment is provided.

Fig. 4 is a kind of left view schematic diagram for low-light (level) wide-angle light box that the utility model embodiment is provided.

Fig. 5 is schematic perspective view when a kind of low-light (level) wide-angle light box that the utility model embodiment is provided shrinks.

Fig. 6 is schematic elevation view when a kind of low-light (level) wide-angle light box that the utility model embodiment is provided shrinks.

Fig. 7 is the layout drawing of LED light bar in a kind of low-light (level) wide-angle light box that the utility model embodiment is provided.

Fig. 8 be the utility model embodiment provide a kind of low-light (level) wide-angle light box in LED light bar arrange it is another Schematic diagram.

Label symbol explanation

The head of 1 test box 31

The montant of 2 telescoping mechanism 32

The cross bar of 3 testing jig 33

The receiver of 11 front side board 34 first

The eccentric fixed seat of 12 lamp bar 35

The left contiguous block of 13 second receiver 21

The right contiguous block of 14 back side panel 22

15 lamp beads 111 are open

100 low-light (level) wide-angle light boxs

Embodiment

In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with Lower combination drawings and Examples, the utility model is further elaborated.It should be appreciated that specific reality described herein Example is applied only to explain the utility model, is not used to limit the utility model.

Realization of the present utility model is described in detail below in conjunction with specific accompanying drawing.

For sake of convenience, hereinafter the left and right, upper and lower of alleged " left side " " right side " " on " " under " and accompanying drawing in itself to one Cause, but restriction effect is not played to structure of the present utility model.

Referring to shown in Fig. 1 to Fig. 8, the preferred embodiment provided for the utility model.

A kind of low-light (level) wide-angle light box 100 that the present embodiment is provided, including the test box 1, described that a closing is set There is the adjustable standard sources of multi color temperature brightness, the standard sources can guarantee that the requirement of low-light (level) in test box 1；Carrying imaging The testing jig 3 of equipment, is arranged between the testing jig 3 and the test box 1 and can drive the testing jig 3 and the test The telescoping mechanism 2 that case 1 is moved towards, the two ends of the telescoping mechanism 2 are connected with the testing jig 3 and the test box 1 respectively； It one is provided with the testing jig 3 can fix relatively described head 31 on the head 31 of the imaging device, the test box 1 and open The opening 111 that the imaging device is shot is available for provided with one.The present embodiment is by by imaging device and the test box 1 (dark place) It is provided separately, and telescoping mechanism 2, the imaging device and the move toward one another of the test box 1 can be driven, in this way, can rapid build One test environment, and when testing the imaging device of different wide-angles, telescoping mechanism 2 is changed by adjustment, you can quick adjustment, solution Except test dead angle, testing efficiency is greatly improved, the kind of test is enriched.

Furthermore, the test box 1 provides the space of a relative closure, can completely cut off extraneous veiling glare, its appearance and size is： The wide high 1m X depths 1.4m of 1m X.In this way, in test, can be carried out in normal lighting environment, equipment small by such environmental effects It is easy to operate.The test box 1 is on the one hand, convenient to install the reflective reflectance chart required for different test events；Separately On the one hand expansible realize can install transmission Led lamp plates in transmission class testing project, the test box 1, can be pasted before Led lamp plates Upper transmission class testing card, you can extend the test-types of device.

Further, the telescoping mechanism 2 is in hinge shape, that is, usually said " bouffancy formula " structure, including mutual Left contiguous block 21 and right contiguous block 22 that intersection and middle part are rotatably connected, along the telescopic direction of the telescoping mechanism 2, two is adjacent The left contiguous block 21 and the right contiguous block 22 between pass through end rotate connection.The retractable of telescoping mechanism 2, The mechanism can be drawn in when not in use, not in space, and the equipment size is compact, the flexible performance of equipment operation is strong, also allows for Transport is carried, while also having the attractive in appearance of profile concurrently, it is easy to application.

Be readily apparent that, the telescoping mechanism 2 in the present embodiment can also be in roller shutter shape, that is, it is usually said " curtain " structure, including rollable connect band and it is available for the rotating bar that the connect band is wound into, the one of the connect band End is fixedly connected on the test box 1 or the testing jig 3, and another section of the connect band is fixedly connected on the rotating bar, The rotating bar is arranged at the testing jig 3 or the test box 1.In this way, control easy to automate, is surveyed when needing to adjust When trying the distance between frame 3 and test box 1, the rotating bar need to be only driven to rotate, and by connecting servomotor, can be real Existing closed loop automation control, eliminates artificial tune machine, greatly improves testing efficiency.

In summary, by setting the telescoping mechanism 2, on the one hand, device zoom can be easy to put and be transported, Still further aspect, can meet the test needs of a variety of focused images equipment.For individual more preferable connection, it is preferred to use be flexible coupling Form, can be achieved precision 1cm step-length regulation, maximum adjustable dimension 1m is preferably to ensure the movement of the testing jig 3, Track connecting test frame 3 and test box 1 with a scale also can be set.

Further, the test box 1 includes framework and the framework is covered to closed side plate, wherein, it is relatively described The side plate that testing jig 3 is set is followed successively by front side board 11 and back side panel 14, and the opening 111 is opened in the center of the front side board 11 Illuminating part is evenly arranged in position, the inner peripheral wall of the front side board 11, test card is positioned over the inwall of the back side panel 14 On.In this way, it is simple in construction, while test card is conveniently replaceable, compatibility test diversified forms, such as transmission-type and reflective imaging.

It should be noted that in the present embodiment, the back side panel 14 can dismantle opening, it is so conveniently replaced to survey Examination card.Certainly, the back side panel 14 is also to change, and according to test needs, the back side panel 14 can be replaced by into transmission Component, so that the transparent test card of adaptive testing, realizes that transmission-type is detected, in this way, expansible test event, especially for pole The test of high brightness and extremely low illumination needs.

Further, the illuminating part is LED light bar 12, and the LED light bar 12 is four, is separately positioned on the front side Four edges of the inwall of plate 11, four LED light bars 12 are in " returning " shape.In the present embodiment, the brightness of the light source of LED light bar 12 Adjustable range 100-10000Lux, colour temperature adjustable range is 2800-6500K, it is possible to provide the standard environment of normal illumination, four Led lamp bars 12 irradiate test card simultaneously, it is ensured that the uniformity of illuminance of test card center and corner is within 10%.Set and four The lamp bead 15 in individual corner, for providing low photograph testing standard illumination, brightness regulation scope 0-100Lux, colour temperature adjustable range 2800-6500K, four irradiation test cards of lamp bead 15 ensure uniformity of illuminance within 10%.

Further, in the present embodiment, the testing jig 3 includes " mouth " font framework, and steel body structure is vertically arranged to Two montants 32 in " mouth " the font framework, and two cross bars that relatively described " mouth " font framework is laterally set up in parallel 33, cross bar 33 described in two is fixed on by the side of montant 32 by a bearing, and the head 31 is arranged on the cross bar 33, institute State the center that head 31 is located at the framework.During actual test, the imaging device can need to carry out 6 dimensions according to test Position adjustment, wherein XYZ three-dimensional coordinates adjustable range is ± 150mm, and the adjustable ranges of three anglecs of rotation is 0-360 degree, It is easy to the optical axis center for adjusting imaging device perpendicular to the center of captured test card.

Further, the bearing is fixed on the montant 32 by eccentric fixed seat 35, and can be along the montant 32 Axis direction move up and down.The head 31 is fixed on the cross bar 33 by eccentric fixed seat 35, and can be along described The axis direction of cross bar 33 does left and right transverse shifting., can by the eccentric fixed seat 35 due to the eccentric dismounting of fixed seat 35 aspect The upper-lower position and right position of head 31 described in quick regulation.Certainly, as needed, the technical program is also designed to silk The structure of bar sliding block, thus it is easy to automate, so as to fast and accurately be adjusted to optimal test image space.

In addition, a rotating disk also can be set on the head 31, in the imaging device setting and the rotating disk, in this way, The imaging device rotatably adjusts imaging angle.It is readily appreciated that, changes the angle of rotation, is not limited to a dimension, can be with Realized in multiple dimensions.

Further, the bottom of the testing jig 3, which is provided with one, can store the first receiver 34 of the stretching structure, institute The first receiver 34 is stated with first containing cavities, one end active link of the stretching structure and first receiver 34 Inwall.The bottom of the test box 1, which is provided with one, can store the second receiver 13 of the stretching structure, and described second stores Relatively described first receiver 34 of box 13 is set, and second receiver 13 has second containing cavities, the stretching structure Other end active link and second receiver 13 inwall.Stored by being set in the bottom of testing jig 3 and test box 1 Box, the utilization useful space of maximizing so that structure is compacter, and floor space is small, is readily transported carrying.

Certainly, the need in order to better meet for wide angle camera test, one can be also set in the test box 1 Mounting bracket so that the test card it is in curved surface it is arranged evenly realize the measurement of wide-angle test event in the test box 1, This design of corner lamp bead and led illuminating parts can meet the uniform-illumination on a sphere, and four angle points configure lamp bead (point Light source) it is that can supplement the not enough feature of illumination of four, the four side line source on radian face.So, it is easy to accomplish to wide-angle phase The test of machine.

The present embodiment, realizes removable detection environment, by being equipped with high color rendering index (CRI) lamp plate, accurately controls test device Internal colour temperature, illumination, so as to set up standard test environment, market potential is big,.This detection means can be to multiple types imaging device Single device many indexes detection is carried out, VR cameras, panorama camera, mobile phone camera, tablet personal computer camera, list can be met A variety of surveys for obtaining equipment such as anti-phase machine, civilian and professional camera, automobile camera head, security monitoring camera, medical imaging Examination requires, and can be shot with detection device in single assembly reflect the definition of original text, it is color rendition, noise, dynamic range, abnormal The index parameters such as change, while transmitting manuscript can be shot with measuring apparatus definition, color rendition, noise, dynamic range, distortion etc. Index parameter.

Further, a ceiling cover can be also covered between the testing jig and the test box, the ceiling cover is adopted It is made with black bouffancy material, in this way, maskable extraneous veiling glare and gathering can be folded.In this way it is easy in the test A darkroom is easily formed between frame and the test box, is easy to detection.

Of the present utility model preferably implement it should be noted that being given in specification of the present utility model and its accompanying drawing Mode, still, the utility model can be realized by many different forms, however it is not limited to the implementation described by this specification Mode, these embodiments are to make there is provided the purpose of these embodiments not as the extra limitation to the utility model content Understanding to disclosure of the present utility model is more thorough comprehensive.Also, above-mentioned each technical characteristic continues to be mutually combined, formed The various embodiments not being enumerated above, are accordingly to be regarded as the scope of the utility model specification record；Further, to this area For those of ordinary skill, it can according to the above description be improved or be converted, and all these modifications and variations should all belong to The protection domain of the utility model appended claims.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Any modification, equivalent substitution or improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (10)

1. a kind of low-light (level) wide-angle light box, it is characterised in that test box, carrying imaging device including a closing setting Testing jig, is arranged between the testing jig and the test box and can drive the testing jig and the test box is moved towards Telescoping mechanism, the two ends of the telescoping mechanism are connected with the testing jig and the test box respectively；Set on the testing jig Be equipped with one can fix relatively described head on the head of the imaging device, the test box offer one be available for it is described imaging set The standby opening shot.

2. low-light (level) wide-angle light box as claimed in claim 1, it is characterised in that the telescoping mechanism is in hinge shape, bag Include and intersect and left contiguous block and right contiguous block that middle part is rotatably connected, along the telescopic direction of the telescoping mechanism, two-phase Rotated and connected by end between the adjacent left contiguous block and the right contiguous block.

3. low-light (level) wide-angle light box as claimed in claim 1, it is characterised in that the telescoping mechanism is in roller shutter shape, bag Rollable connect band and the rotating bar for being available for the connect band to be wound into are included, one end of the connect band is fixedly connected on institute Test box or the testing jig are stated, another section of the connect band is fixedly connected on the rotating bar, and the rotating bar is arranged at The testing jig or the test box.

4. low-light (level) wide-angle light box as claimed in claim 2 or claim 3, it is characterised in that the test box include framework and The framework is covered to closed side plate, wherein, the side plate that relatively described testing jig is set is followed successively by front side board and back side panel, institute State and be evenly arranged illuminating part in the center for being opened in the front side board, the inner peripheral wall of the front side board, test Card is positioned on the inwall of the back side panel.

5. low-light (level) wide-angle light box as claimed in claim 4, it is characterised in that the illuminating part is LED light bar, described LED light bar is four, is separately positioned on four edges of the front side board inwall.

6. low-light (level) wide-angle light box as claimed in claim 5, it is characterised in that four corners of the front side board inwall Place is provided with a lamp bead.

7. low-light (level) wide-angle light box as claimed in claim 5, it is characterised in that the testing jig includes " mouth " font Framework, is vertically arranged to two montants in described " mouth " font framework, and relatively described " mouth " font framework is laterally set side by side Two cross bars put, cross bar described in two is fixed on by the montant side by a bearing, and the head is arranged on the cross bar.

8. low-light (level) wide-angle light box as claimed in claim 7, it is characterised in that the bearing is solid by eccentric fixed seat Due on the montant, and it can be moved up and down along the axis direction of the montant；The head is fixed by eccentric fixed seat In on the cross bar, and left and right transverse shifting can be done along the axis direction of the cross bar.

9. low-light (level) wide-angle light box as claimed in claim 2 or claim 3, it is characterised in that the testing jig and the test Between case covered with maskable extraneous veiling glare and can fold draw in ceiling cover.

10. the low-light (level) wide-angle light box as any one of claim 1-3, it is characterised in that the testing jig Bottom, which is provided with one, can store the first receiver of the stretching structure, and first receiver has first containing cavities, The inwall of one end active link of the stretching structure and first receiver.