CN2848108Y

CN2848108Y - Multifunctional digital visual apparatus

Info

Publication number: CN2848108Y
Application number: CN 200520055970
Authority: CN
Inventors: 冯德强
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-15
Filing date: 2005-03-15
Publication date: 2006-12-20
Anticipated expiration: 2015-03-15

Abstract

The utility model relates to the field of eyesight test and myopia prevention, particularly a multifunctional digital eyesight apparatus which can operate independently. The utility model comprises an eye chart, a self-testing test device, a power supply and a switch, wherein the self-test device comprises an infrared remote controller, an IR receiving module, an instruction decode module, an instruction execution module, a voice playing module, a speaker and an outer shell. The infrared remote controller transmits signals with different frequencies which are processed through a digital electronic circuit so as to play the passwords of ocular gymnastics, accurately detect eyesight and reflect the actual eyesight of a tester in a voice mode. The eye chart is provided with elementary color graph blocks and a work sheet of the ocular gymnastics. The utility model has the characteristics of simple structure and independent operation, and is suitable for families, schools, spectacle speciality stores, etc.

Description

The multifunctional digital code vision tester for eyesight

Affiliated technical field

This utility model belongs to eye eyesight test and vision care technical field.Be specifically related to a kind of digital electric know-why of utilizing, allow the multifunctional digital code vision tester for eyesight of tester's self testing vision quickly and easily and vision protection.

Technical background

The factor that causes people's visual deterioration is many-sided, as because do not note eye hygiene, with between at the moment excessively or other pathological changes or the like.People usually can carry out eyesight testing in daily life, to accomplish in time to protect eyes, the purpose of treatment ophthalmic.Tracking and testing and eye health protection more and more become life necessity of people.The tradition visual acuity chart all is the assistance of wanting other people, and is subjected to interference from human factor, and accuracy reduces.Though laser optics tester measuring accuracy height needs the professional person to instruct, and the cost height, complex structure, not easy-operating feature.The design is through studying intensively, develop this multifunctional digital code vision tester for eyesight that has emission instruction signal, receives command signal, IC chip processing signals and voice play function, the experimenter can the self testing vision and is carried out the vision care function.Experiment showed, that for vision protection pre-myopia prevention effect is remarkable.

The innovation and creation content

The purpose of this utility model provides a kind of simple in structure, is easy to processing and fabricating, the formula of testing oneself multifunctional digital code vision tester for eyesight easy and simple to handle.

The technical scheme that realizes this utility model purpose is: visual acuity chart and receiving actuating equipment (Fig. 2): receive 2, speaker 1 is installed on the visual acuity chart, sighting target " E " 3 arranged, basic colors square 4, eye health protection behaviour application drawing 5 on the visual acuity chart.Vision is exported voice signal through loudspeaker plays from testing device by the IC chip, the experimenter selects the sighting target direction button of corresponding with it " E " according to the position on the IR remote controller control panel (Fig. 1) of voice suggestion sighting target " E ", the signal of the respective direction respective frequencies that IR remote controller sends, receive instruction through receiving head, transmit IC, the IC chip judges whether to go to trigger corresponding speech play module for effective instruction, and the speech play module is sent the triggering of speech play number and is stored in the speech data of IC chip internal in advance through loudspeaker plays.

Good effect of the present utility model is: the multifunctional digital code vision tester for eyesight has discharger, receiving actuating equipment, so experimenter's operational testing vision alone; Have eye exercises and cry out behaviour's password, the experimenter loosens with reference to the massage of eye health protection clocklike of carrying out science shown in the picture according to beat, reaches the effect of anti-eye strain; The experimenter carries out aggressive prevention or treatment eyes by the vision testing result; The experimenter is by differentiating the basic colors square can detect whether suffer from achromatopsia.Therefore has application value widely.

Description of drawings

Fig. 1 is a remote controller control panel front view

Fig. 2 is visual acuity chart and receiving actuating equipment front view

Fig. 3 is the remote control circuitry schematic diagram

Fig. 4 is the receiving actuating equipment schematic diagram

The specific embodiment

Radiating circuit Fig. 3 of remote controller is made of coding circuit, modulation circuit, frequency multiplier circuit, output circuit and power supply.Wherein, coding circuit, frequency multiplier circuit are an IC, and C3 is a filter capacitor, and 6 feet connect power supply, and C1, C2 and 455E constitute oscillating circuit, carry out signal through 8050 and amplify, and colelctor electrode C series connection emitting head transmits.

Receiving actuating equipment Fig. 4: constitute by IR receiver module, IC, speaker, power supply.Power supply forms to receive a power supply and receive head through R1, C2, C3 forms the command reception module.Received signal inputs to IC by the PADAO foot, C1 is a power filter, the IC chip judges whether to go to trigger corresponding speech play module for effective instruction after deciphering, the speech play module is sent the speech play number and is triggered the speech data that is stored in the IC chip internal in advance, is connected the speaker output audio signal by 8 feet with 10 feet.Functional overview gives a test of one's eyesight:

1. be divided into two kinds of patterns: eyesight testing pattern and eye exercises pattern.

Behind the electrification reset at first play cuing voice " lucky base of a fruit rabbit is welcome you " if this moment by the PLAY key then enter the eye exercises pattern; Then enter the eyesight testing mould by the arbitrary key in the key of upper and lower, left and right

3. eye exercises pattern: eye exercises have 4 big joints, each big joint has eight trifles, then withdraw from this pattern after playing 4 big joints, repeated trigger PLAY key then starts anew to play, and then enter eyesight testing pattern by the arbitrary key of upper and lower, left and right key this moment.

4. eyesight testing pattern: vision from testing device by the cpu chip transmission of speech signals through loudspeaker plays, the experimenter according to the position of voice suggestion sighting target " E " at the infrared distant sighting target direction button that selects corresponding " E " on the device of selecting and control, the signal of the respective direction respective frequencies that IR remote controller sends, receive special instruction through the IR receiving circuit, transmit cpu chip and judge whether to go to trigger corresponding speech play module for effective instruction, the speech play module is sent the triggering of broadcast voice number and is stored in the speech data of cpu chip inside in advance through loudspeaker plays.

(1). enter after the eyesight testing pattern at first play cuing voice: " beginning to survey vision now ".

(2). the eyesight testing pattern is divided into two stages: bigness scale stage and thin survey stage.

(3). the bigness scale stage:, randomly draw one in every line and test, till answering mistake since the 1st row, then, wrong if the 11st row is answered with the last behavior initial row of current line, then with the 10th behavior initial row, if it is wrong that first row is answered, then prompting " your vision is 4.0 ".

(4). carefully survey the stage: be that benchmark begins test with selected initial row (as 10 row) at first, " E " of picked at random this journey tests.

＜1 〉. if answered questions four " E ", then continue test 11 row, point out your vision 5.1 (i.e. the visions of 10 row) if 11 row have 2 " E " to answer mistake continuously, proceed the eyesight testing (i.e. the 12nd row) of high delegation if 11 row have 4 " E " to answer questions, by that analogy.

＜2 〉. if selected initial row is answered wrong 2 " E " continuously, then continue to survey and look toward low one-level (i.e. the vision of 9 row), if the 9th row is answered questions 4 " E ", the vision of then pointing out you is 5.0 (i.e. the visions of 9 row), if have two " E " to answer mistake continuously, then continue eyesight testing, by that analogy toward next stage.

(5). the 2nd walks to 5 row, as long as answer questions two " E " even if this journey passes through.

(6) as long as. even if the 1st row is answered questions 1 this journey and is passed through, and prompting " your vision is 4.1 " is if answer wrong 1 time then calculate this journey and do not pass through, prompting " your vision is 4.0 ".

(7). except that the 1st row, even if other does not pass through as long as answer wrong 2 this journeys continuously.

＜1〉.ON/OFF key: then enter " OFF " state by " ON/OFF " key at " ON " state, invalid at " OFF " state PLAY key and upper and lower, left and right key, and enter SLEEP after about 1 second, trigger once more and then get back to " ON " state again, by that analogy.

＜2 〉. at " ON " state, no speech trigger entered SLEEP in about 90 seconds, and any key can wake up, entered " OFF " state if " ON/OFF " key wakes up again after then waking up, reentered SLEEP in about 1 second; If enter SLEEP at the OFF state, do not carry out keypress function when then waking up by PLAY key upper and lower, left and right key, reenter SLEEP after about 1 second, if wake up by " ON/OFF " then enter " ON " state this moment.

＜3＜. after entering SLEEP, because the hardware aspect infrared receiving module also is in the work, the work of this module can consume several milliamperes electric current (general little 5mA), and the size of power consumption stream is relevant with the electrical characteristic of infrared receiving circuit.

Claims

1. multifunctional digital code vision tester for eyesight, comprise visual acuity chart, from testing device and supporting power supply thereof, it is characterized in that: the described independent transmission device that comprises receiving actuating equipment, matches with receiving actuating equipment from testing device, receiving actuating equipment is installed on the visual acuity chart, and the independent transmission device is the individual components that separates with the vision epiphase.

2. a kind of multifunctional digital code vision tester for eyesight according to claim 1, it is characterized in that: receiving actuating equipment comprises IR receiver module, IC, speaker, power supply, is fixed on the visual acuity chart middle upper part.

3. a kind of multifunctional digital code vision tester for eyesight according to claim 2, it is characterized in that: IC comprises instruction decode module, instruction execution module and speech play module, and instruction decode module, instruction execution module are electrically connected each other with the speech play module.

4. a kind of multifunctional digital code vision tester for eyesight according to claim 1, it is characterized in that: discharger is a kind of IR remote controller, comprise radiating circuit, coding circuit, modulation circuit, frequency multiplier circuit, output circuit and power supply, control panel, radiating circuit, coding circuit, modulation circuit, frequency multiplier circuit, output circuit and power supply are electrically connected each other, and control panel is provided with sighting target direction button, PLAY key, on ﹠ off switch.

5. a kind of multifunctional digital code vision tester for eyesight according to claim 1, it is characterized in that: the eye health protection behaviour application drawing that has sighting target figure " E ", basic colors graph block and corresponding eye exercises password beat that size that corresponding 12 row convert by national eyesight testing standard is arranged in order on the visual acuity chart, sighting target figure " E " is positioned in the middle of the visual acuity chart, and basic colors graph block and eye exercises password application drawing are positioned at sighting target figure " E " both sides.