A kind of iris eyes synchronous acquisition device collecting environment light detection and ranging one
Technical field
The utility model is related to living things feature recognitions and technical field of security authentication, and in particular to iris capturing device.
Background technology
Current iris image collector generally all includes main control chip, cmos sensor, camera lens, optical filter, lighting unit
And range finder module etc..Wherein range finder module is used for judging the distance between human eye and camera lens, it is ensured that in suitable distance acquisition
To clearly iris image.If patent CN103099624A discloses a kind of iris locater plate, which includes optical filter, red
Outer lamp, infrared sensor, tri coloured lantern and loud speaker and control module measure optical lens and user by infrared sensor
The distance between, phonetic function is completed by loud speaker;Patent CN106778713A discloses a kind of rainbow of dynamic human eye tracking
Film identification device, it is mentioned that range unit, the device is for measuring the iris image sensor between position of human eye
Distance, prompt user be moved forward or rearward;This two patents have all used infrared distance sensor, but all do not mention the biography
Sensor can provide environmental light parameter, so that primary processor adjusts the parameters such as the gain of Image Acquisition, control image exposure intensity etc.,
Accomplish light intensity self-adaptive.
Utility model content
The purpose of the utility model is to provide the iris eyes synchronous acquisitions of a kind of collection environment light detection and ranging one
Device, to solve the above problems.
Following technical scheme may be used to realize in the technical issues of the utility model is solved:
A kind of iris eyes synchronous acquisition device collecting environment light detection and ranging one, including an iris of both eyes synchronous acquisition
Device, the iris of both eyes synchronous acquisition device include a processor system, and the processor system connection one is for acquiring a left side
The iris of left eye imaging sensor of eye iris image, an iris of right eye imaging sensor for acquiring iris of right eye image, institute
It states processor system and is also connected with an infrared distance sensor for measuring the distance between human eye and camera lens, which is characterized in that
The iris eyes synchronous acquisition device for collecting environment light detection and ranging one further includes one for the red of monitoring of environmental light
Outer photosensitive sensor, the infrared photosensitive sensor connect the processor system;
The infrared distance sensor and the infrared photosensitive sensor are located in the same shell.
This patent has installed infrared photosensitive sensor additional on existing iris eyes synchronous acquisition device, allows processor system
According to ambient light data, primary processor can control the parameters such as the time for exposure of iris image sensor, analog gain, and dynamic is adjusted
Save the brightness and contrast of collected iris image, it is ensured that collect clearly high quality iris image.In addition, this patent is also
There is the position for optimizing infrared photosensitive sensor, infrared distance sensor and infrared photosensitive sensor is made to be located at the same shell
It is interior, on the one hand, infrared photosensitive sensor can be fixed during fixed outer red distance measuring sensor, keep installation more convenient,
On the other hand, between being typically secured to two iris image sensors because of infrared distance sensor, therefore the ring measured at this
Border light relatively evenly, it is more acurrate.
The length of the shell is 8mm ± 0.5mm, and width is 3mm ± 0.5mm, is highly 1.8mm ± 0.5mm.It can be with
The infrared distance sensor and the infrared photosensitive sensor are integrated on the shell by surface-pasted mode.
The processor system includes a signal processing circuit, one 8/16 analog-digital converters, the signal processing electricity
Road connects the analog-digital converter, and the analog-digital converter connects the iris of left eye imaging sensor, the iris of right eye figure
As sensor, the infrared distance sensor and the infrared photosensitive sensor.To realize each module and signal processing circuit
Communication.
The signal processing circuit is also associated with a USB data transfer interface.Collect the rainbow of environment light detection and ranging one
Film eyes synchronous acquisition device, host side is transferred data to by the USB data transfer interface.
Collect the iris eyes synchronous acquisition device of environment light detection and ranging one, including a shell, the left side of the shell
It is provided with the first trepanning, is provided with the second trepanning on the right side of the shell, the camera lens of the iris of left eye imaging sensor is by described
One trepanning is stretched out, and the camera lens of the iris of right eye imaging sensor is stretched out by second trepanning;
The shell is fixed between first trepanning and second trepanning.So that camera lens and human eye are as far as possible
Face.
The inner surface of the shell is equipped with a sliding slot, the camera lens of the iris of left eye imaging sensor, the right eye rainbow
The rear of the camera lens of film image sensor is respectively provided with a sliding rail that can be slided along the sliding slot;
The iris eyes synchronous acquisition device for collecting environment light detection and ranging one further includes the driving sliding rail described
The driving mechanism moved on sliding slot;
First trepanning, second trepanning are strip trepanning.This patent is additionally arranged sliding system, and optimizes
The structure of trepanning allows camera lens to horizontally slip, and the distance between two camera lenses of adjustment are equal or close with the interpupillary distance for the person of being taken, from
And the full face of the acquisition eyes of maximum possible.
The infrared distance sensor includes an infrared transmitter, an infrared remote receiver, opens that there are two thoroughly on the shell
Unthreaded hole, the infrared transmitter, the infrared remote receiver are located at behind a loophole;
The infrared remote receiver includes an infrared optical sensor, infrared optical sensor described in the infrared photosensitive sensor one
As sensing element.
The infrared distance sensor of this patent and infrared photosensitive sensor share infrared optical sensor, not only save portion
Part reduces cost, also simplifies structure, allows to use smaller shell, has significant progress.
The processor system is fixed in the shell, is preferably placed at the lower section of the shell.To improve the weight of equipment
Amount layout makes center of gravity to movement below middle part.
Baffle plate is equipped between the infrared distance sensor and the camera lens.Baffle plate is used for stopping that infrared distance measurement senses
The infrared light that device is sent out enters camera lens and causes to interfere.
The light inlet of the camera lens is equipped with an infrared filter.The infrared filter is preferably electroplate with the optics glass of infrared filter membrane
Glass.Infrared filter has high projection ratio to infrared light, has high reflectance for visible light.
Description of the drawings
Fig. 1 is the part-structure schematic diagram of the utility model.
Specific implementation mode
In order to make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, under
Face, which combines to be specifically illustrating, is expanded on further the utility model.
Referring to Fig.1, the iris eyes synchronous acquisition device of a kind of collection environment light detection and ranging one, including an iris of both eyes
Synchronous acquisition device, iris of both eyes synchronous acquisition device include a processor system 4, and the connection of processor system 4 one is for acquiring
The iris of left eye imaging sensor 1, one of iris of left eye image is used to acquire the iris of right eye imaging sensor of iris of right eye image
2, processor system 4 is also connected with an infrared distance sensor for measuring the distance between human eye and camera lens, collection ambient light inspection
The iris eyes synchronous acquisition device of survey and ranging one further includes an infrared photosensitive sensor for being used for monitoring of environmental light, infrared
Photosensitive sensor connection processing device system 4;Infrared distance sensor and infrared photosensitive sensor are located in the same shell 3.This
Patent has installed infrared photosensitive sensor additional on existing iris eyes synchronous acquisition device, allows processor system 4 according to environment
Light data, primary processor can control the parameters such as the time for exposure of iris image sensor, analog gain, and dynamic regulation collects
Iris image brightness and contrast, it is ensured that collect clearly high quality iris image.It is optimized in addition, this patent also has
The position of infrared photosensitive sensor makes infrared distance sensor and infrared photosensitive sensor be located in the same shell 3, a side
Infrared photosensitive sensor can be fixed during fixed outer red distance measuring sensor, keep installation more convenient, another party by face
Face, between being typically secured to two iris image sensors because of infrared distance sensor, therefore the ambient light phase measured at this
To evenly, it is more acurrate.
The length of shell 3 is 8mm ± 0.5mm, and width is 3mm ± 0.5mm, is highly 1.8mm ± 0.5mm.It can pass through
Infrared distance sensor and infrared photosensitive sensor are integrated on shell 3 by surface-pasted mode.
Processor system 4 includes a signal processing circuit, one 8/16 analog-digital converters, and signal processing circuit connects mould
Number converter, analog-digital converter connect iris of left eye imaging sensor 1, iris of right eye imaging sensor 2, infrared distance sensor
With infrared photosensitive sensor.To realize the communication of each module and signal processing circuit.Signal processing circuit is also associated with a USB numbers
According to coffret 5, USB data transfer interface 5 is located on the side wall of the shell.Collect the iris of environment light detection and ranging one
Eyes synchronous acquisition device transfers data to host side by USB data transfer interface 5.
Collect the iris eyes synchronous acquisition device of environment light detection and ranging one, including a shell, is provided on the left of shell
The second trepanning is provided on the right side of first trepanning, shell, the camera lens of iris of left eye imaging sensor 1 is stretched out by the first trepanning, right eye
The camera lens of iris image sensor 2 is stretched out by the second trepanning;Shell 3 is fixed between the first trepanning and the second trepanning.So that mirror
Head and human eye face as far as possible.The inner surface of shell is equipped with a sliding slot, camera lens, the right eye of iris of left eye imaging sensor 1
The rear of the camera lens of iris image sensor 2 is respectively provided with a sliding rail that can be slided along sliding slot;Collect environment light detection and ranging one
Iris eyes synchronous acquisition device, further include the driving mechanism that a driving sliding rail moves on the chute;First trepanning, the second trepanning
It is strip trepanning.This patent is additionally arranged sliding system, and optimizes the structure of trepanning, and camera lens is allowed to horizontally slip, and adjusts
The distance between two camera lenses are equal or close with the interpupillary distance for the person of being taken, to the full face of the acquisition eyes of maximum possible.
Infrared distance sensor includes an infrared transmitter, an infrared remote receiver, opens that there are two loopholes on shell 3, red
External transmitter, infrared remote receiver are located at behind a loophole;Infrared remote receiver includes an infrared optical sensor, infrared
One infrared optical sensor of photosensitive sensor is as sensing element.The infrared distance sensor of this patent and infrared photosensitive sensor are total
With infrared optical sensor, component is not only saved, reduces cost, also simplifies structure, allows to use smaller shell 3, tool
There is significant progress.
Processor system 4 is fixed inside the shell, and the lower section of shell 3 is preferably placed at.To improve the weight layout of equipment, make weight
The heart is mobile to middle part lower section.Baffle plate can be equipped between infrared distance sensor and camera lens.Baffle plate is used for stopping infrared survey
Enter camera lens away from the infrared light that sensor is sent out to cause to interfere.The light inlet of camera lens can be equipped with an infrared filter.Infrared filter
It is preferred that being electroplate with the optical glass of infrared filter membrane.Infrared filter has high projection ratio to infrared light, has for visible light high anti-
Penetrate rate.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.