CN214387751U

CN214387751U - A hand-held type measuring apparatu for artificial tooth color ratio

Info

Publication number: CN214387751U
Application number: CN202023137114.0U
Authority: CN
Inventors: 李兆; 罗中明; 张滨阁; 黄广秩; 骆佳楠
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-10-15
Anticipated expiration: 2030-12-23

Abstract

The invention provides a handheld measuring instrument for false tooth color matching. The tooth color acquisition unit sends the acquired color signal to the microprocessor unit; the microprocessor unit compares the acquired color signals, converts the color signals into a measurement result and displays the measurement result through the liquid crystal display unit. The invention has simple operation, lower cost and convenient carrying; for human eyes to compare the tooth color with the standard color comparison plate, the invention can reduce the error caused by subjective factors; environmental factor influences for a short time, can accurately and quickly acquire the color number of the teeth of the patient, and brings great convenience to medical workers and the patient.

Description

A hand-held type measuring apparatu for artificial tooth color ratio

Technical Field

The invention belongs to the fields of human oral medicine, digital image processing application and computer science, and particularly relates to a handheld measuring instrument for false tooth color matching.

Background

Various electronic measuring instruments exist in the market, but no instrument specially used for tooth color measurement and tooth color number comparison exists at present. With the increasing incidence of oral diseases of human bodies, the problem of overlarge color difference between the color of the inlaid porcelain teeth and the color of the teeth of the user appears and continuously troubles people.

The porcelain tooth repairing technology is a repairing method widely applied at home and abroad, and is widely loved by patients due to firmness, durability, stable color, natural comfort and good biocompatibility. With the continuous development of the technology, the related problems such as the edge, the shape and the goodness of fit of the previous prosthesis are improved, and whether the color of the prosthesis is similar to that of the patient's own tooth, and the overall coordination and the beauty of the tooth are the main requirements of the current mosaic ceramic tooth. In China, the aesthetics and the chromatology are set in the fresh stomatology, so that slight deviation of the form of a repaired body can be accepted by a patient, and the patient can be compensated by making proper adjustment. However, the deviation of the color is often unacceptable, and cannot be adjusted and compensated by the repairing physician.

Traditionally, the color of the porcelain teeth is confirmed and recorded by the doctor by using naked eyes to compare the residual teeth with a color plate. Although the human eye can distinguish extremely small color differences, individual differences exist because each person's perception of color depends on normal visual physiological functions and psychological influences. It should be noted that the physician who is the tooth color matching operation has red and green visual defects, and the people with color vision defects have obviously lower correct discrimination ability for hue and chroma than normal color vision people. It has been reported that the human color discrimination ability gradually decreases after the age of 45 years. Moreover, different physicians who perform clinical colorimetric operations also have different results. In addition, the difference of the sizes of teeth, the space positions of the protrusion and the invagination, the skin color of a patient, clothes, the position of placing a colorimetric plate, the difference of repairing materials, the observation angle of a doctor during colorimetric process and the like all influence the final colorimetric effect of the doctor.

Disclosure of Invention

The purpose of the invention is: the hand-held measuring instrument eliminates the deviation caused by human eyes during colorimetric process, and is simple to operate, low in cost and convenient to carry.

The purpose of the invention is realized as follows:

the invention relates to a hand-held measuring instrument for color matching of false teeth, which comprises a shell and a circuit device. The structure is characterized in that: the housing 2 comprises a housing front end 21, a housing rear end upper portion 22 and a housing rear end lower portion 23; the circuit device comprises a tooth color acquisition unit 3, a microprocessor unit 4, a liquid crystal display unit 5, an input unit 1, a power supply unit 6 and an electric quantity display unit 7.

The tooth color acquisition unit 3 is provided with a signal output end and a power supply end; the microprocessor unit 4 is provided with a tooth color signal input end, a display signal output end and a power supply end; the liquid crystal display unit 5 is provided with a display signal input end; the input unit 1 is provided with a button end; the power supply unit 6 is provided with a direct-current power supply output end; the electric quantity display unit 7 is provided with an electric quantity input end.

The signal output end of the tooth color acquisition unit 3 is electrically linked with the tooth color signal input end of the microprocessor unit 4; the display signal output end of the microprocessor unit 4 is in signal electrical link with the display signal input end of the liquid crystal display unit 5; the power end of the tooth color acquisition unit 3, the power end of the microprocessor unit 4, the power end of the liquid crystal display unit 5 and the power input end of the power display unit 7 are all electrically connected with the direct-current power output end of the power unit 6. The power terminal of the tooth-color obtaining unit measuring unit 3 and the power terminal of the microprocessor unit 4 are electrically connected to the button terminal of the input unit 1.

Further scheme: the tooth color acquisition unit 3 comprises a high-resolution color sensor, and is used for acquiring the color of an object by receiving the reflected light of the object and sending the acquired color signal to the microprocessor unit 4; the microprocessor unit 4 comprises a microprocessor, is used for converting the color signals into measurement results after comparison and processing and transmitting the measurement results to a user through the liquid crystal display unit 5; the liquid crystal display unit 5 includes a liquid crystal display screen for displaying the measurement result to the user; the input unit 1 comprises a button for a user to control a switch of the hand-held measuring instrument; the electric quantity display unit 7 comprises an electric quantity display lamp for prompting a user to pay attention to the electric quantity condition of the measuring instrument; the power supply unit 6 includes a lithium battery for supplying power to various devices.

Further scheme: the measuring instrument is provided with a charging jack 8 and a matched charger and is used for charging the measuring instrument; the measuring instrument is provided with a lens 9, and light beams of the light source are reflected by an object and then transmitted to the measuring unit through a convex lens; the measuring instrument is provided with a light source 10, and the brightness of the light source 10 is controlled by a user by using the input unit 1; the gauge is provided with a metal gimbals tube 11, and the user controls the direction of the light source 10 using the metal gimbals tube 11.

The hand-held measuring instrument of the invention has the positive effects that:

firstly, the invention has simple operation, lower cost and convenient carrying;

secondly, for human eyes to compare the tooth color with a standard color comparison plate, the method can reduce errors caused by subjective factors; and thirdly, the influence of environmental factors is small, the color number of the teeth of the patient can be accurately and quickly acquired, and great convenience is brought to medical workers and the patient.

Drawings

FIG. 1 is a block diagram of a circuit configuration of a hand-held measuring instrument for color matching of dentures according to the present invention;

FIG. 2 is a schematic diagram of a hand-held measuring device for color matching of dentures according to the present invention;

FIG. 3 is a schematic front end view of a hand-held measuring instrument for color matching of dentures according to the present invention;

FIG. 4 is a schematic diagram of the upper rear end structure of a hand-held measuring instrument for color matching of dentures according to the present invention;

fig. 5 is a schematic diagram of the rear-end lower structure of a hand-held measuring instrument for color matching of dentures according to the present invention.

The reference numbers in the above figures are as follows:

the tooth color acquisition device comprises an input unit 1, a shell 2, a shell front end 21, a shell rear end upper portion 22, a shell rear end lower portion 23, a tooth color acquisition unit 3, a microprocessor unit 4, a liquid crystal display unit 5, a power supply unit 6, an electric quantity display unit 7, a charging jack 8, a lens 9, a light source 10 and a metal universal tube 11.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the invention relates to a hand-held measuring instrument for color matching of dentures, which mainly comprises a shell 2 and a circuit device. The housing 2 comprises a housing front end 21, a housing rear end upper portion 22 and a housing rear end lower portion 23. The circuit device comprises a tooth color acquisition unit 3, a microprocessor unit 4, a liquid crystal display unit 5, an input unit 1, a power supply unit 6 and an electric quantity display unit 7.

The signal output end of the tooth color acquisition unit 3 is electrically linked with the tooth color signal input end of the microprocessor unit 4; the display signal output end of the microprocessor unit 4 is in signal electrical link with the display signal input end of the liquid crystal display unit 5; the power end of the tooth color acquisition unit 3, the power end of the microprocessor unit 4, the power end of the liquid crystal display unit 5 and the power input end of the power display unit 7 are all electrically connected with the direct-current power output end of the power unit 6. The power source terminal of the tooth-color obtaining unit 3 and the power source terminal of the microprocessor unit 4 are electrically connected to the button terminal of the input unit 1.

The input unit 1 is used for control of the microprocessor unit 4; the tooth color acquisition unit 3 is used for receiving a control instruction of the microprocessor unit 4 to acquire tooth colors and transmitting acquired color signals to the microprocessor unit 4; the microprocessor unit 4 compares the color signals and controls the tooth color obtaining unit 3; the liquid crystal display unit 5 is used for receiving the signal transmitted by the microprocessor unit 4 and displaying in real time; the power supply unit 6 is used for providing direct current power supply; the power display unit 7 is used for displaying the remaining power.

In the present embodiment, the input unit 1 preferably employs a push button, see fig. 2. The button is pressed to trigger the effect well and is not easy to damage. The liquid crystal display unit 5 mainly includes a liquid crystal display screen. The power display unit 7 preferably employs a light emitting diode. The light emitting diode is low in price and high in integration level.

Referring to fig. 3, in the present embodiment, the light source 10 is preferably a full spectrum lamp. Full spectrum lamps are closest to sunlight. The lens 9 is preferably a convex lens. The convex lens transmits light emitted by the full spectrum lamp reflected by the tooth. The metal universal pipe 11 is preferably made of steel wire. The metal universal pipe made of the steel wire has high strength, good shaping effect, arbitrary bending and positioning, no rebound and no abnormal sound.

Referring to fig. 4, in the present embodiment, the tooth color acquisition unit 3 preferably employs a high-resolution color sensor. The microprocessor unit 4 is preferably a single-chip microcomputer of type 89C 51. The power supply unit 6 preferably employs a lithium battery that can supply a direct current power supply.

Referring to fig. 5, in this embodiment, the charging jack 8 preferably employs a Type-e interface and a mating charger.

In summary, the handheld measuring instrument of the embodiment is simple to operate, low in cost and convenient to carry; for human eyes to compare the tooth color with the standard color comparison plate, the invention can reduce the error caused by subjective factors; environmental factor influences for a short time, can accurately and quickly acquire the color number of the teeth of the patient, and brings great convenience to medical workers and the patient.

Claims

1. A hand-held measuring instrument for color matching of false teeth comprises a shell (2) and a circuit device, and is characterized in that: the shell (2) comprises a shell front end (21), a shell rear end upper part (22) and a shell rear end lower part (23); the circuit device comprises a tooth color acquisition unit (3), a microprocessor unit (4), a liquid crystal display unit (5), an input unit (1), a power supply unit (6) and an electric quantity display unit (7), wherein the tooth color acquisition unit (3) is provided with a signal output end and a power supply end; the microprocessor unit (4) is provided with a tooth color signal input end, a display signal output end and a power supply end; the liquid crystal display unit (5) is provided with a display signal input end; the input unit (1) is provided with a physical input end; the power supply unit (6) is provided with a direct-current power supply output end; the electric quantity display unit (7) is provided with an electric quantity input end; the signal output end of the tooth color acquisition unit (3) is in signal electrical connection with the tooth color signal input end of the microprocessor unit (4); the display signal output end of the microprocessor unit (4) is in signal electrical connection with the display signal input end of the liquid crystal display unit (5); the power end of the tooth color acquisition unit (3), the power end of the microprocessor unit (4), the power end of the liquid crystal display unit (5) and the electric quantity input end of the electric quantity display unit (7) are all electrically connected with the direct-current power output end of the power supply unit (6); the power supply end of the tooth color acquisition unit (3) and the power supply end of the microprocessor unit (4) are electrically connected with the physical input end of the input unit (1).

2. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the tooth color acquisition unit (3) comprises a high-resolution color sensor for acquiring the color of the object by receiving the reflected light of the object and sending the acquired color signal to the microprocessor unit (4).

3. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the microprocessor unit (4) comprises a microprocessor, and is used for converting the color signals into measurement results after comparison and processing and transmitting the measurement results to a user through the liquid crystal display unit (5).

4. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the liquid crystal display unit (5) comprises a liquid crystal display screen and is used for displaying the measurement result to a user.

5. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the input unit (1) comprises a button for a user to control a switch of the hand-held measuring instrument.

6. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the electric quantity display unit (7) comprises an electric quantity display lamp for prompting a user to pay attention to the electric quantity condition of the measuring instrument.

7. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the power supply unit (6) comprises a lithium battery for supplying power to various devices.

8. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the measuring instrument is provided with a charging jack (8) and a matched charger and is used for charging the measuring instrument.

9. The hand-held measuring instrument for color matching of dentures as claimed in claim 1, wherein:

the measuring instrument is provided with a metal universal tube (11), and a user controls the direction of the light source (10) by using the metal universal tube (11).