CN104688179A - Mobile phone photo taking accessory for taking medical photos - Google Patents

Abstract

The invention relates to a mobile phone camera accessory for taking medical photos, comprising a mobile phone case, on which a light converging lens and an imaging magnifying lens are arranged, the light converging lens includes two groups of optical convex lenses, and the lens barrel of the first group of convex lenses is fixed on Around the flash hole of the mobile phone case, the lens barrel of the second group of convex lenses is movably connected with the first group. The distance between the two groups of convex lenses can be adjusted. Carry out two convergences to irradiate the part that needs to be inspected; the imaging magnifying lens is facing the camera hole and connected to the mobile phone case, the light reflected from the part to be inspected enters the imaging magnifying lens, and then enters the mobile phone camera, so that the mobile phone can obtain the required Check the image of the site. The present invention can make full use of the ready-made devices on the mobile phone to carry out the camera accessories for taking medical photos.

Description

A mobile phone camera accessory for taking medical photos

Technical field

The invention belongs to the field of medical technology, in particular to a camera accessory for taking medical photos.

Background technique

Fundus photography is a widely used diagnostic method in ophthalmology. By using fundus photography, doctors can visually check whether there are lesions in the optic nerve and retina of the patient's fundus.

The traditional ophthalmoscope is a medical device, which is generally only used by doctors for diagnosis. It is composed of an illumination system and an observation system. It has a complex structure, large volume and high cost, and is not easy to carry around. Traditional ophthalmoscopes generally can only observe, and do not have the functions of image storage and analysis and processing, which makes the diagnosis of doctors more subjective.

The patent No. CN1080509A discloses a novel hand-held ophthalmoscope, but it adopts a high-brightness exposure photography method to take pictures of the fundus, and the high-brightness light source will stimulate the pupils to shrink instantly and reduce the quality of the photos taken. Although equipped with a camera system, the external camera not only makes the structure complicated, loses portability, but also increases the cost.

The invention with the patent number CN103099600A discloses a fundus examination instrument, but the structure of the light source part is complex, and a light-emitting mirror is arranged inside, and a focusing lens is required to make the light source meet the requirements, the operation is relatively cumbersome, and the convenience is lost. The brightness of the light source cannot be adjusted, and it is difficult to meet the requirements of the examiner.

The invention with the patent number CN103815869A discloses a hand-held fundus camera, but it uses two kinds of LEDs, near-infrared and white light, as the lighting source, and needs to prepare an imaging module and a display module by itself.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a camera accessory that can make full use of the ready-made devices on the mobile phone to take medical photos. The medical photo camera accessory provided by the invention improves the mobile phone shell of the smart phone, adds a light converging lens and an imaging magnifying lens, and after the improved mobile phone shell is installed on the back of the smart phone, the flashlight of the mobile phone can be used as a light source, and the camera of the mobile phone can be used. Take pictures of the fundus, inner ear, teeth, skin and other parts of the examinee, and after saving the pictures on the mobile phone, the examiner can further analyze and process the medical images such as the fundus. Technical scheme of the present invention is as follows:

A mobile phone camera accessory for taking medical photos, including a mobile phone case matched with a smart phone for taking medical photos, the mobile phone case is provided with a flashlight hole and a camera hole; it is characterized in that a The light converging lens and the imaging magnifying lens, the light converging lens includes two groups of optical convex lenses, the lens barrel of the first group of convex lenses is fixed around the flash hole of the mobile phone case, the lens barrel of the second group of convex lenses is connected with the first group, and the two groups of convex lenses The distance between them can be adjusted, and the two sets of convex lenses are located on the same optical axis as the flashlight, which is used to converge the divergent light of the flashlight twice so that it can irradiate the part to be inspected; the imaging magnifying lens is facing the camera hole and is connected with the phone case Connected, the light reflected from the part to be inspected enters the imaging magnifying lens, and then enters the camera of the mobile phone, so that the mobile phone can obtain the image of the part to be inspected.

The lens barrel of the first group of convex lenses and the lens barrel of the second group of convex lenses can be connected by threads.

The present invention mainly innovates the existing ophthalmoscope and other technologies. There are two main points of innovation. One is that the brightness of the flash lamp used as the light source can be adjusted to meet the observation requirements of the inspector. The other is two groups of light converging lenses. The distance between them can be adjusted so that the light converges to the part that needs to be inspected, for example, it converges between the eyeball and the fundus when taking fundus photography, so that the entire fundus area can be selectively observed or a small area can be focused on. The mobile phone case for taking medical photos has a simple structure, can be carried around, and is convenient to use. Due to relying on the extremely widespread mobile phone, the fundus camera accessory can be plugged and played with the mobile phone. Beneficial effects are as follows:

(1) The mobile phone case for taking medical photos according to the present invention has a simple structure and is easy to carry. Users can quickly and accurately check the fundus and other parts at any time. Compared with traditional ophthalmoscopes and other devices, the volume is relatively small The problem of being large and not easy to carry is effectively solved.

(2) Using the mobile phone flash as the light source, the battery of the mobile phone is sufficient to ensure that the light intensity meets the shooting requirements, and the brightness of the light source can be adjusted. Compared with the traditional ophthalmoscope and other inspection instruments, which need to be equipped with a power system, the power is less and the brightness of the light source is fixed. problem has been improved.

(3) The distance between the two groups of light converging lenses can be adjusted, which can selectively observe the whole part that needs to be inspected, such as the fundus or a small area of the fundus. Compared with the problem of fixed observation position of the existing ophthalmoscope, it is solved. It is more conducive to the examiner to make a diagnosis.

(4) The mobile phone camera is used as the shooting lens, which has high resolution, stable and clear imaging, and can save images such as fundus images. Compared with traditional ophthalmoscopes and other devices, the problem of not being able to save images is solved.

Description of drawings

Fig. 1 is an explanatory diagram of the structure of a mobile phone camera accessory for taking medical photos according to the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings:

This embodiment is described by taking fundus photography as an example, please refer to FIG. 1 . Fundus photography accessories include: 1. Mobile phone case; 2. The first group of convex lenses of the light converging lens; 3. The second group of convex lenses of the light converging lens; 4. Imaging magnifying lens. Wherein the light converging lens 2 and the imaging magnifying lens 4 are fixed to the mobile phone case, and the first group of convex lenses 2 and the second group of convex lenses 3 of the light converging lens are connected by threads.

When in use, put the mobile phone case 1 on the mobile phone, connect the second group of light converging lens 3 to the first group of converging lens 2 through threads, turn on the flashlight of the mobile phone and the mobile phone camera software, and align the light converging lens 3 on the subject's face Eyeball, at this time, the divergent light emitted by the flashlight of the mobile phone enters the first group of convex lenses 2 to form parallel light and enters the second group of convex lenses 3, and the light converges again into the eyeball of the examinee to illuminate the fundus, and the light reflected by the fundus enters the imaging magnifying lens 4 , and then enter the mobile phone camera, adjust the brightness of the mobile phone flash until a clear fundus image can be observed on the mobile phone screen. At this time, turn the converging lens 3 to adjust the distance between the converging lens 2 and the lens 3, and you can selectively observe the entire fundus area Or focus on a small area. After the imaging is clear and stable, you can take pictures and save the fundus image for subsequent analysis and processing of the fundus image.

Though the present invention is improved at ophthalmoscope. But it is not only used for taking pictures of fundus pictures, but also can be used for inspection and taking pictures of other parts.

Claims (2)

1. A mobile phone camera accessory for taking medical photos, comprising a mobile phone case matched with a smart phone for taking medical photos, said mobile phone case being provided with a flashlight hole and a camera hole. It is characterized in that a light converging lens and an imaging magnifying lens are arranged on the mobile phone case, the light converging lens includes two groups of optical convex lenses, the lens barrel of the first group of convex lenses is fixed around the flash hole of the mobile phone case, and the lens barrel of the second group of convex lenses Connected with the first group of activities, the distance between the two groups of convex lenses can be adjusted, and the two groups of convex lenses are located on the same optical axis as the flashlight, which is used to converge the divergent light of the flashlight twice so that it can irradiate the parts to be inspected; imaging The magnifying lens faces the camera hole and is connected with the mobile phone case. The light reflected from the part to be inspected enters the imaging magnifying lens, and then enters the camera of the mobile phone, so that the mobile phone obtains an image of the part to be inspected. 2. The mobile phone camera accessory according to claim 1, characterized in that the lens barrel of the first group of convex lenses is connected with the lens barrel of the second group of convex lenses through threads.