JP3379820B2 - TV camera device for skin diagnosis - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TV camera device for skin diagnosis which is used at places where skin diagnosis is required, such as in an escort salon and a dermatologist.

[0002]

2. Description of the Related Art Television cameras for skin diagnosis are available in stiction salons, dermatologists, cosmetics departments and the like. Figure 2
(A) is a conventional TV camera device for skin diagnosis. A photographing window 12 is formed in front of the case body 11, and an optical system 14 having a lens 13 is provided inside the case corresponding to the photographing window 12. The optical image introduced through the optical system 14 is formed on the image pickup surface of the solid-state image pickup device 15 and converted into an electric signal. The electrical connection between the solid-state image sensor 15 and its control unit is made via a camera cable 16. Light from a high-heat bulb such as a halogen bulb or a xenon bulb is introduced into the case body 11 via an optical fiber 17, and illuminates an object near the photographing window 12 via a movable mirror 18 and a fixed mirror 19. Has become. In the example of the figure, the output light of the optical fiber 17 is reflected by the movable mirror 18 and the fixed mirror 19, but when the movable mirror 18 is moved to the position of the dotted line A in the figure, the output light of the optical fiber 17 is directly photographed. You will come out of the window 12. FIG. 2B shows the camera unit 100, the light source and camera control unit 101, and the monitor 102 as a whole.

[0003]

According to the above-mentioned skin diagnosis television camera device, the high heat bulb is used for illumination. For this reason, there is a problem that it is unsuitable for downsizing because it requires a large amount of electric power, and is unsuitable for long-term use because of large heat generation. Furthermore,
Since the skin is irradiated using direct light in the form of a beam, the light does not penetrate well into the skin and is not well reflected from the skin, and it is difficult to obtain a good diagnosis when performing a diagnosis on the image on the monitor. is there.

Therefore, an object of the present invention is to provide a TV camera device for skin diagnosis, which has less heat generation, is soft to the skin, is effective in downsizing, and can also improve image quality.

[0005]

According to the present invention, there is provided a lens disposed inside a case, which faces a photographing window opened in front of the case, and an image pickup device for picking up an optical image incident through the lens. A circle fluorescent lamp that is provided inside the case and illuminates the photographing window side; and a reflecting portion that adjusts a traveling angle by reflection when the illumination light of the circle fluorescent lamp is derived from the photographing window; A transparent slide pipe, which has almost the same diameter as the periphery of the window and is coaxial with the shooting window and is movable in the axial direction, is attached to a part of the transparent slide pipe, and the transparent slide pipe is attached to the shaft. In response to moving in the direction, the illumination light from the circle fluorescent lamp is allowed to pass through the photographing window through the transparent portion of the transparent slide pipe, A first state of blocking light passing through the shooting window through the shooting section and allowing the shooting window through the shooting section through the reflecting section, but passing through the shooting window through the transparent slide pipe And a light blocking ring portion that realizes a second state of blocking light.

[0006]

By the above means, it is possible to realize a television camera device using a circline fluorescent lamp that generates less heat and is soft on the skin.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which a case body 21 having a cylindrical shape has a photographing window 21 formed at the front end thereof as an axial center. An inclined diaphragm portion 21a is formed at the front end portion, and this diaphragm portion 21a also functions as an illumination light reflecting portion, as described later.

A lens 23 is concentrically arranged inside the case on the axial extension of the photographing window 21, and the lens 23 is held by an optical system cylinder 24. Optical system tube 24
A solid-state image pickup device 25 is arranged at the rear end portion, and a subject image introduced through the lens 23 is formed on the image pickup surface of the solid-state image pickup device 25. The image pickup signal converted into the electric signal by the image pickup device 25 is guided to the camera control unit and the video signal processing unit (not shown) via the camera cable 26 held at the rear end of the case 21.

Further, a transparent slide pipe 31 is slidably attached to the outer circumference of the optical system cylinder 24. At the rear part of the transparent slide pipe 31, there is a lever 32 protruding in the outer peripheral direction, and the lever 32 projects to the outside via a slit 21b formed in the case 21. A light shielding ring 33 is attached to the outer periphery of the transparent slide pipe 31 at the front.
The transparent slide pipe 31 is slidable in the axial direction, and can take a first position slid forward and a second position slid rearward.

Furthermore, in this apparatus, an illumination reflection ring 41 is attached inside the case. The illumination reflection ring 41 is located, for example, near the outer periphery of the lens 23 and is attached to the inner wall of the case. Then, along the front side of the illumination reflection ring 41, the circle line fluorescent lamp 42
Are arranged. In this circle fluorescent lamp 42,
Power is supplied through the camera cable 26.

The figure shows two paths of illumination light. The first path A is a path when the transparent slide pipe 31 is moving to the first position where it is slid forward. The second path B is the path when the transparent slide pipe 31 is moving to the second position where it is slid backward. In other words, in order to realize the second path B, the light blocking ring 33 retracts rearward to allow the second path B,
It is necessary to cut the first path A. On the contrary, in order to realize the first path A, it is necessary to move the light shielding ring 33 forward, allow the first path A, and cut the second path B.

The above-mentioned device takes an image by bringing the image pickup window 22 close to a state where it touches the skin, and when the first path A is realized, the angle of the light causes the image pickup from the surface of the skin. There is reflection, and you can get an image of the surface. Second
When the path B is realized, it is possible to obtain an image in which the inside of the skin (inner surface: keratin on the back side of the skin) is illuminated by the angle of the light.

The above-mentioned device uses a small circle fluorescent lamp which is a cold cathode ray tube as an illumination light source. Unlike conventional halogen bulbs, this fluorescent lamp does not require high power or generate high heat. Therefore, even if it is placed inside the case and the illumination light amount is large and effective, it is soft to the skin. Therefore, it can be used for a long time. Also,
The power supply line can be integrated in the camera cable, and the connection line between the camera control unit and the camera head unit can be simplified. That is, the control line and output line of the image sensor, and the power line of the circle fluorescent lamp are
It is inserted into a camera control cable attached to the case body at once, and is connected to a remote camera control section and a television signal processing section.

Furthermore, the light of the fluorescent lamp is diffused light,
Illumination with indirect shadows will be done with overall brightness. As a result, in the case of the route A, diffuse reflection on the surface of the skin is obtained, and in the case of the route B, diffuse reflection on the back surface of the skin is obtained, and the illumination is uniformly performed to every corner of the photographing range. , The captured image quality becomes extremely good. In the conventional case, partial brightness unevenness occurs. In particular, when photographing the path B, since a symptom that cannot be judged from the surface of the skin with the naked eye is visualized, it is impossible to make a proper diagnosis if there is uneven brightness or uneven brightness.
According to the apparatus of this embodiment, uniform and bright illumination is obtained, which is effective for proper skin diagnosis.

Although the above description shows a basic embodiment of the present invention, the present invention is not limited to this embodiment, and various embodiments are possible. For example, although the inner surface of the diaphragm portion 21a is also used as the reflecting portion, a reflecting member may be incorporated. Further, the lens system may be configured so that the magnification can be adjusted.

[0016]

As described above, according to the present invention, there is obtained a device which generates less heat, is soft to the skin, is effective in downsizing, improves the image quality of a captured image, and is effective in skin diagnosis. be able to.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention.

FIG. 2 is a diagram showing a conventional skin diagnosis television camera device.

[Explanation of symbols]

21 ... Case body, 22 ... Shooting window, 23 ... Lens, 24
... optical system tube, 25 ... solid-state image sensor, 26 ... camera cable, 31 ... transparent slide pipe, 32 ... lever, 33 ...
Light-blocking ring, 41 ... Illumination reflection ring, 42 ... Sarkline fluorescent lamp.

Claims (3)

(57) [Claims] 1. A lens disposed inside the case so as to face a photographing window opened in front of the case main body, an image pickup device for picking up an optical image incident through the lens, and a lens provided inside the case. And a circle fluorescent lamp that illuminates the photographing window side, and when the illumination light of the circle fluorescent lamp is derived from the photographing window, a reflector that adjusts the traveling angle by reflection, and the circumference of the photographing window is almost the same. A transparent slide pipe that is arranged inside the case coaxially with the photographing window and is movable in the axial direction, and is attached to a part of the transparent slide pipe to move the transparent slide pipe in the axial direction. In response, the illumination light from the circle fluorescent lamp is allowed to pass through the photographing window through the transparent portion of the transparent slide pipe, but through the reflecting portion, A first state of blocking passage through the photographing window and a second state of permitting passage through the photographing window through the reflecting portion but blocking through the photographing window through the transparent slide pipe A television camera device for skin diagnosis, comprising: a light-shielding ring portion that realizes a state. 2. The television camera device for skin diagnosis according to claim 1, wherein the reflecting portion is also used as an inner side surface of a narrowed portion in front of the case body. 3. A control line and an output line of the image pickup device, and a power line of the circle fluorescent lamp are collectively inserted into a camera control cable attached to the case main body to remotely control a camera. The television camera device for skin diagnosis according to claim 1, wherein the television camera device is connected to the television signal processing unit.