TWM537883U - Optical inspection device featuring infrared ranging and gesture recognition - Google Patents

Description

Optical detecting device with infrared ranging and attitude detection

The present invention relates to an optical detecting device with infrared ranging and attitude detection, especially an infrared ranging and attitude detection which is quite accurate in infrared ranging and combined with a reconnaissance mirror and a posture confirmation structure to improve optometry accuracy. Optical detection device.

Referring to Figures 7 and 8, the conventional retinoscope 70 is illuminated by a light-emitting aperture 71 toward a subject 90 to detect a light 70A, thereby producing an optometry for an ophthalmologist and an optometrist (or optometrist). The reference of the mirror is based on the reflection of the fundus to improve the accuracy of the optometry. However, many ophthalmologists (optographers or optometrists) today use a retinoscope to perform optometry refracting, and most of them still use a visual or scale to measure the distance between the pupil and the eye. In this way, the use is very inconvenient, and the error value is larger when the inspection distance is converted into diopter. At present, there is no design that can accurately and conveniently measure the distance between the retinoscope and the eye. In view of this, it is necessary to develop a technique that can solve the above disadvantages.

The purpose of the present invention is to provide an optical detecting device with infrared ranging and attitude detection, which has the advantages of accurate infrared ranging and combined with the inspection mirror and posture confirmation structure to improve the accuracy of the optometry. In particular, the problem that this creation is to solve is that there is currently no problem that the design of the distance between the retinoscope and the eye can be accurately and conveniently measured. The technical means for solving the above problems is to provide an optical detecting device with infrared ranging and attitude detection, comprising: an optical detecting structure having a light emitting member, a light exiting hole and an observation peephole window, wherein the light emitting device is used for Sending a detection light, the detection light is irradiated toward the eye of a subject through the light exit hole; the observation peep window is used to inspect the detection light to illuminate the eye to generate a fundus reflected light, and when the optical detection structure is controlled When the eye is changed between relatively distant and relatively close, the reflected light of the fundus changes between one of a moving state, a reverse state, and a neutral state, and is in a neutral state, representing the optical detection. The structure has a correct focal distance F from the eye; an infrared ranging structure includes a light emitting member, a light reflecting member and a light receiving member, and the light emitting member and the light receiving member are disposed thereon In the optical detecting structure, the light reflecting member is disposed at a position corresponding to the light receiving member adjacent to the eye, and the light emitting member is configured to emit an infrared light toward the light reflecting member, the infrared light system The light reflecting member is reflected back to the light receiving member, the light receiving member receives the infrared light and generates an optical signal corresponding to the distance between the optical detecting structure and the eye; and a processing structure electrically connecting the light Receiving a piece, and having a formula D=1/F, wherein D is the diopter of the eye, the processing structure extracts the electrical signal, first converts to the focal distance F, and then substitutes the formula D=1/F Calculating the diopter; a posture confirming structure is disposed on the optical detecting structure and electrically connecting the processing structure, wherein the posture confirming structure is used to confirm that the optical detecting structure is perpendicular to the eye, and the focus is raised The accuracy of distance F. The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments and the accompanying drawings. The following examples are used in conjunction with the drawings to illustrate the creation in detail:

Referring to the first, second, third, third, fourth, fourth, fourth, and fifth figures, the present invention is an optical detecting device for infrared ranging and attitude detection, which includes an optical detecting structure 10 and an infrared ray. The ranging structure 20, a processing structure 30, and a gesture confirmation structure 40. The optical detecting structure 10 has a light-emitting component 11 , a light-emitting aperture 12 and an observation aperture window 13 . The illumination component 11 is configured to emit a detection light 111 , and the detection light 111 passes through the light-emitting aperture 12 to be tested. The eye 91 of the person 90 is illuminated; the observation window 13 is used to inspect the detection light 111 to illuminate the eye 91 to generate a fundus reflected light 112. When the optical detection structure 10 is controlled to be relatively far from the eye 91, When the image is relatively close, the fundus reflected light 112 is transformed between the moving state (see FIGS. 3A to 3B), the reverse state (see FIGS. 4A to 4B), and the neutral state. And in a neutralized state (as shown in FIG. 5), it represents that the optical detecting structure 10 and the eye 91 have a correct focal distance F. The infrared ray-receiving structure 20 includes a light-emitting member 21, a light-reflecting member 22, and a light-receiving member 23, and the light-emitting member 21 and the light-receiving member 23 are disposed on the optical detecting structure 10. The light reflecting member 22 is disposed adjacent to the light receiving member 23 and adjacent to the eye 91. The light emitting member 21 is configured to emit an infrared light 20A from the light reflecting member 22, and the infrared light 20A is from the light reflecting member 22. Reflected back to the light receiving member 23, the light receiving member 23 receives the infrared light 20A and generates an optical signal 20B corresponding to the distance between the optical detecting structure 10 and the eye 91 (see 6A, 6B, and The 6C map has a larger distance FA, a focal distance F, and a smaller distance FB). With respect to the processing structure 30, the light receiving member 23 is electrically connected, and a formula D=1/F is built in, where D is the diopter of the eye 91 (English is Diopter, also referred to as lens degree), The processing structure 30 captures the electrical signal 20B, converts it first (the signal is converted into a known technique, and will not be described later) as the focal distance F, and then substitutes the formula D=1/F to calculate the diopter. The posture confirmation structure 40 is disposed on the optical detection structure 10 and electrically coupled to the processing structure 30 for confirming that the optical detection structure 10 is perpendicular to the eye 91, thereby improving the posture. The accuracy of the focal distance F. In practice, the optical detection structure 10 can be a known retinoscope structure. The posture confirmation structure 40 can be a known gyroscope, and changes in three axes of the X-axis, the Y-axis, and the Z-axis to instantly confirm whether the optical detection structure 10 is perpendicular to the eye 91, and increase the focal distance F. accuracy. The manner of use of the present invention is as follows: When the optical detection structure 10 is used to emit the detection light 111, the detection light 111 is irradiated toward the eye 91 of the subject 90 through the light exit hole 12. At this time, the observation peephole window 13 can inspect the detection light 111 to be irradiated to the eye 91, and the fundus reflection light 112 is generated. Next, referring to FIGS. 3A and 3B, it is assumed that the fundus reflected light 112 is in a moving state (issued) The detection light 111 is shifted to the right, and the fundus reflection light 112 is also shifted to the right, that is, moved in the same direction. The processing structure 30 may be converted by the optical signal 20B between the optical detection structure 10 and the eye 91. Large distance FA (as shown in Fig. 6A, relatively far away), please refer to Figs. 4A and 4B again, assuming that the fundus reflected light 112 is in a reverse state (the detected light 111 is emitted rightward, but the fundus reflected light 112 Similarly, it can be converted that the optical detecting structure 10 and the eye 91 may be separated by a small distance FB (as shown in FIG. 6C, relatively close), and when the fundus reflects light 112 In the neutralized state, the optical detecting structure 10 is at a focal distance F from the eye 91 (as shown in FIG. 6B). At this time, the processing structure 30 further substitutes the focal length F into the formula D=1/F, and calculates the diopter. For example, suppose a subject: [a] first measured at a distance of 66.7 cm as "reverse action"; [b] measured closer to a distance of 50 cm to obtain "reverse action"; c] close to a distance of 40 cm to obtain "reverse action"; [d] close to a distance of 30 cm to obtain "reverse action"; ([a] to [d] is represented only by Figure 6A ()) [e] Close to a distance of 20 cm to measure, get "smooth" (using Figure 6C as an example); [f] return to 25 cm to measure, get "neutral" (such as Figure 6B shows). Then, through the above formula D=1/F, the diopter=1/(0.25)=4 is calculated, that is, 400 degrees of myopia is represented. In addition, the optical detecting structure 10 can continuously pass through the posture confirming structure 40 during the moving process to confirm whether the optical detecting structure 10 and the eye 91 are perpendicular to improve the measurement accuracy. The advantages and functions of this creation are as follows: [1] Infrared ranging is quite accurate. The invention is provided with an infrared ranging structure between the optical detecting structure (reviewing mirror) and the eye, and is not affected by external light, and can accurately measure the distance between the optical detecting structure and the eye. Therefore, infrared ranging is quite accurate. [2] Improve the optometry accuracy by combining the retinoscopy mirror and the attitude confirmation structure. This creation system uses an optical detection structure (reviewing mirror) to illuminate the eye of the person to be tested, and produces reflected light from the fundus. When the reflected light of the fundus is neutralized, the optical signal is first converted into the focus between the optical detection structure and the eye. The distance is calculated by the formula D=1/F, and the diopter is calculated. The subject does not need to respond to the clear vision of the subject, which can reduce the subjective consciousness of the respondent's response and affect the accuracy of the optometry. Therefore, the retinoscopy optometry is more accurate. Moreover, during the movement of the retinoscope, the posture confirmation structure can be continuously passed, and whether the retinoscopy mirror is perpendicular to the eye can be confirmed, and the optometry accuracy can be improved. The above is only a detailed description of the present invention by way of a preferred embodiment, and any modifications and variations of the embodiments are possible without departing from the spirit and scope of the present invention.

10‧‧‧Optical inspection structure
11‧‧‧Lighting parts
111, 70A‧‧‧Detection light
112‧‧‧ fundus reflected light
12, 71‧‧‧ light hole
13‧‧‧ Observing the peephole window
20‧‧‧Infrared ranging structure
20A‧‧‧Infrared light
20B‧‧‧Optical signal
21‧‧‧Light emitting parts
22‧‧‧Light reflectors
23‧‧‧Light receiving parts
30‧‧‧Processing structure
40‧‧‧ gesture confirmation structure
70‧‧‧Retroscope
90‧‧‧Testees
91‧‧‧ eyes
F‧‧‧Focus distance
FA‧‧‧Great distance
FB‧‧‧ minor distance

Fig. 1 is a schematic view of the present invention applied to optometry. Fig. 2 is a schematic view of other angles of Fig. 1Fig. 3A to 3B. Fig. 4A and Fig. 4B are diagrams showing the change of the state of the reflected light of the fundus of the present invention. Fig. 5 is a schematic diagram showing the state of reversal state of the reflected light of the fundus of the present invention. Fig. 6A is a schematic diagram showing a large distance between the optical detection structure of the present creation and the eye. Fig. 6B is a schematic diagram showing the distance between the optical detection structure of the present invention and the distance between the eyes. Fig. 6C is a schematic diagram showing a small distance between the optical detection structure and the eye of the present invention. Fig. 7 is a conventional apparatus applied to optometry Figure 8 of the schematic diagram is a schematic diagram of other angles of Figure 7

10‧‧‧Optical inspection structure

111‧‧‧Detection light

12‧‧‧Lighting hole

13‧‧‧ Observing the peephole window

20‧‧‧Infrared ranging structure

20A‧‧‧Infrared light

20B‧‧‧Optical signal

21‧‧‧Light emitting parts

22‧‧‧Light reflectors

23‧‧‧Light receiving parts

30‧‧‧Processing structure

40‧‧‧ gesture confirmation structure

90‧‧‧Testees

Claims (3)

An optical detecting device with infrared ranging and attitude detection includes: an optical detecting structure having a light emitting member, a light exiting hole and an observation peephole window, wherein the light emitting member is configured to emit a detecting light, the detecting light The light exiting aperture is illuminated toward the eye of the subject; the viewing aperture window is configured to inspect the detection light to illuminate the eye to generate a fundus reflected light, and when the optical detection structure is controlled to be relatively distant from the eye, When the image is changed between the two, the reflected light of the fundus changes between one of the moving state, the reverse state, and the neutral state, and is in a neutral state, which represents that there is a light between the optical detecting structure and the eye. The correct focus distance F; an infrared ranging structure includes a light emitting member, a light reflecting member and a light receiving member, the light emitting member and the light receiving member are disposed on the optical detecting structure, and the light reflecting The light emitting member is disposed adjacent to the eye, and the light emitting member emits an infrared light toward the light reflecting member, and the infrared light is reflected from the light reflecting member to the light. a receiving member, the light receiving member receives the infrared light and generates an optical signal corresponding to a distance between the optical detecting structure and the eye; a processing structure electrically connecting the light receiving member and constructing a formula D=1/F, where D is the diopter of the eye, the processing structure extracts the electrical signal, first converts to the focal distance F, and then substitutes the formula D=1/F to calculate the diopter; The confirmation structure is disposed on the optical detection structure and electrically connected to the processing structure. The posture confirmation structure is used to confirm that the optical detection structure is perpendicular to the eye, and the accuracy of the focus distance F is improved. An optical detecting device with infrared ranging and attitude detection according to the first aspect of the invention, wherein the optical detecting structure is a retinoscope. An optical detecting device for infrared ranging and attitude detection according to the first aspect of the invention, wherein the posture confirming structure is a gyroscope.