CN2921874Y

CN2921874Y - Medical film-viewing lamp

Info

Publication number: CN2921874Y
Application number: CN 200620122380
Authority: CN
Inventors: 姚志图
Original assignee: WEZHI INTELLIGENT Ltd
Current assignee: Waichi Opto Technology (Shenzhen) Ltd.
Priority date: 2006-07-10
Filing date: 2006-07-10
Publication date: 2007-07-11
Anticipated expiration: 2016-07-10

Abstract

The utility model relates to a medical film-viewing lamp. The prior used X ray photographic plate and the CT imaging plate is of case structure which is of strong sparkling sense and is easy to damage eyes, heavy and of low quality. The utility model consists of an out frame, a light scatter plate, a guide light plate, a reflecting light membrane, a fixing plate, a backing, a CCFL light pipe, a U-shape metal groove, a driving device, a power switch and a potential divider. Wherein the out frame is square or arc, the bottom is provided with a support foot; the light scatter plate, the guide light plate, the reflecting light membrane, the fixing plate and the backing are in order arranged fixedly in the frame from the surface to the back side; the bottom part of the guide light pate is provided with the array type white color net points; the edge is provided with the U-shape metal groove and the driving device which are provided with the high frequency CCFL light pipe, the driving device is connected with the power switch and the potential divider which are fixed out the frame by the guide wire. The illumination is uniform and soft, the picture is of high fidelity, the utility model can help doctor to accurately read the film, protects eyes and environment, saves energy, is convenient to operate and carry, is of ultrathin structure, low production cost and is good for wide application.

Description

New Concept Medical Film-Chip Light

Technical field

The utility model relates to medical auxiliary apparatus, is specifically related to New Concept Medical Film-Chip Light.

Background technology

At present, the radiograph egative film that domestic medical institutions generally use, CT imaging egative film viewbox are all traditional box typed structure, all have following defective:

1, the light source of box viewbox generally is to be provided by common fluorescent tube, causes lamp box flickering strong (flicker frequency has only 50Hz), and long-term use meeting causes serious injury to the eyes of seeing the sheet doctor;

2, casing thick stupid (thickness is more than 100mm) be unfavorable for placing or installing, and it is big to take working space;

3, adopt AC 220V directly to import, have personal safety hidden danger;

4, power consumption big (the box viewbox of simply connected generally is not less than 50W) does not meet energy-conservation theory;

5, the common fluorescent tube life-span shorter, the normal use had only about 1500 hours, but also can often damage in actual the use, and often changed starter etc.

The utility model content

The purpose of this utility model is to provide that volume is little, illumination evenly, energy-saving safety, the New Concept Medical Film-Chip Light that do not affect one's power of vision.

The utility model is made of housing, light diffuser plate, light guide plate, reflective membrane, fixed head, backboard, CCFL light pipe, U-shaped metallic channel, driver, power switch and potentiometer.Housing can be square or circular arc, in its bottom feet can be set; Part is set with light diffuser plate, light guide plate, reflective membrane, fixed head and backboard successively by the surface in the frame to the back side; Be provided with the white site of specific standard, density, array way in the bottom surface of light guide plate, make the luminous more even of whole light guide plate; After the reflective membrane of highly reflective is attached to the light guide plate mesh point face, the light that diffuses to the light guide plate bottom is reflexed to the front, to reduce the loss of light, the brightness that improves viewbox; At the edge of light guide plate, be provided with the U-shaped metallic channel, its inside is equipped with high frequency CCFL light pipe, and by being fixed on the driver drives in the space between light guide plate and the framework, driver is connected with potentiometer by the lead power switch outer with being fixed on framework; The break-make of switch Control Driver direct-current input power supplying can be utilized the brightness of PWM width modulation method control viewbox by regulator potentiometer.

CCFL light pipe of the present utility model can be several, can be as required with regularly arranged or arrange in the mode of length collocation, greatly improved the uniformity of luminance of viewbox.

Advantage of the present utility model is that illumination is evenly soft, and picture is true to nature, helps the doctor accurately to read sheet, the protection eyes, and environmental protection and energy saving are operated easy to carryly, safe and reliable, and body is ultra-thin, and low production cost is beneficial to popularization.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present utility model;

Fig. 2 is that the utility model housing is each square parts decomposing state synoptic diagram;

Fig. 3 is a circuit block diagram of the present utility model.

1 is housing among the figure, the 2nd, and light diffuser plate, the 3rd, light guide plate, the 4th, reflective membrane, the 5th, fixed head, the 6th, backboard, the 7th, CCFL light pipe, the 8th, U-shaped metallic channel, the 9th, driver, the 10th, power switch, the 11st, potentiometer, the 12nd, feet, the 13rd, aluminium alloy extrusions, the 14th, plastic cement connector, the 15th, plug.

Embodiment

With most preferred embodiment the utility model is described in further details below:

The utility model is made of housing (1), light diffuser plate (2), light guide plate (3), reflective membrane (4), fixed head (5), backboard (6), CCFL light pipe (7), U-shaped metallic channel (8), driver (9), power switch (10) and potentiometer (11).Housing (1) is formed square with four sections aluminium alloy extrusions (13) and four plastic cement connectors (14), be provided with feet (12) in its bottom, and plastic cement connector (14) is provided with direct current 12V input aviation plug (15); Part is set with light diffuser plate (2), light guide plate (3), reflective membrane (4), fixed head (5) and backboard (6) successively by the surface in the frame to the back side; Light diffuser plate (2) (claims equal tabula rasa again, astigmatism plate) is milky, what be close to light diffuser plate (2) is the PMWA acrylic light guide plate (3) that light is had strong conduction, adopt screen printing mode, bottom surface in light guide plate (3) increases specific standard, density, the white site of array way, the light that the side is next, effectively reflex to the vision area front, to improve whole plate brightness, but the specification and the density of each regional site of light guide plate (3) are uneven, this uneven array way can make the volume reflection difference of each regional site to light, the zonal ray volume reflection near from light source is few, the zonal ray volume reflection far away from light source is many, so that whole plate is luminous more even.Near what be attached to light guide plate (3) site face is highly reflective reflective membrane (4), and effect is that the light that will diffuse to light guide plate (3) bottom reflexes to the front, to reduce the loss of light, the brightness that improves viewbox; The side on light guide plate (3) two long limits, the high frequency CCFL light pipe (7) of the short collocation of parallel respectively two platoon leaders arranged side by side, it is the tubular of 3mm that CCFL light pipe (7) is diameter, occur the black dull phenomenon of large tracts of land for fear of middle junction and adopt the mode of this length collocation to arrange, improved the viewbox uniformity of luminance like this; Light guide plate (3) two long side faces are totally 8 CCFL light pipes (7) that length is different, place light guide plate (3) both sides respectively, be fixed between light guide plate (3) and the housing (1) driver (9) in the space and drive by 2; Driver (9) is connected with potentiometer (11) with the power switch (10) that is fixed on housing (1) lower right side by lead, power switch (10) can Control Driver (9) direct-current input power supplying break-make, can utilize the brightness of PWM width modulation method control viewbox by regulator potentiometer (11); Two groups of CCFL light pipes (7) are fixed on respectively in two aluminium matter U-shaped metallic channels (8), handle through special surface the inboard of U-shaped metallic channel (8), strengthened the reflex of light, most light that assurance CCFL light pipe (7) sends are injected light guide plate (3) side from the U-shaped mouth, have only few light to be absorbed by U-shaped metallic channel (8), simultaneously, U-shaped metallic channel (8) also shields to CCFL light pipe (7); Securing members such as light guide plate (3), U-shaped metallic channel (8) and two drivers (9) use screw are fixed on the aluminium matter backboard (6).

Claims

1, New Concept Medical Film-Chip Light, it is by housing (1), light diffuser plate (2), light guide plate (3), reflective membrane (4), fixed head (5), backboard (6), CCFL light pipe (7), U-shaped metallic channel (8), driver (9), power switch (10) and potentiometer (11) constitute, it is characterized in that housing (1) can be square or circular arc, be provided with feet (12) in its bottom, part is set with light diffuser plate (2) successively by the surface in the frame to the back side, light guide plate (3), reflective membrane (4), fixed head (5) and backboard (6), light guide plate (3) edge is provided with the U-shaped metallic channel (8) and the driver (9) of built-in high frequency CCFL light pipe (7), and is connected with potentiometer (11) by the lead power switch (10) outer with being fixed on framework.

2, New Concept Medical Film-Chip Light as claimed in claim 1 is characterized in that the bottom surface of described light guide plate (3) is provided with the white site of array way.

3, New Concept Medical Film-Chip Light as claimed in claim 1 is characterized in that described CCFL light pipe (7) can be several, can be with regularly arranged or arrange in the mode of length collocation.

4, New Concept Medical Film-Chip Light as claimed in claim 1 is characterized in that described housing (1) and U-shaped metallic channel (8) can be aluminum products.