Controllable LED lightness medical film observation lamp house

Abstract

The invention discloses a medical film viewing light box with the controllable LED brightness and relates to a film viewing light box, which provides a portable medical film viewing light box with the controllable LED brightness, wherein, the medical film viewing light box has the functions of local super-bright display due to illumination strengthening, local rating, changing light color, and the like, the volume is smaller and thinner, and the LED luminous source replaces the daylight lamp luminous source and the fluorescent light luminous source. The medical film viewing light box of the invention is provided with a light box frame, a luminous source, a light source control circuit, a power supply, a backlight module and a caliper sliding mechanism, wherein, the backlight module, the light source control circuit and the caliper sliding mechanism are fixedly arranged on the light box frame; the backlight module is provided with a light guiding plate, a reflective layer, a surrounding reflective layer and a diffuser, wherein, the light guiding plate is provided with a dot structure; the reflective layer is arranged at the bottom face of the light guiding plate; the surrounding reflective layer is arranged around the light guiding plate; the diffuser is covered on the upper surface of the light guiding plate; the LED luminous source is arranged at the side face of the light guiding plate and respectively connected with the light source control circuit and the power supply; additionally, the caliper sliding mechanism is arranged on the upper surface of the diffuser.

Description

technical field [0001] The utility model relates to a film viewing light box, in particular to a medical film viewing light box with controllable LED brightness, soft and uniform light emission, no flickering, and lightness. technical background [0002] The existing medical film observation light box is equipped with a light box frame, a light source, a light source control circuit and a power supply. The light source generally uses fluorescent lamps or cold cathode fluorescent lamps. Short, and can not adjust the observed luminosity and chromaticity according to the sensitivity coefficient of the film and the clarity of the image, and the film will be wasted due to underexposure, poor image quality, and poor observation effect during filming. [0003] The utility model patent with the notification number CN2572425 discloses a medical X-ray film viewing light box, which includes a box body, a translucent material sheet, a tubular light source, and a light guide plate made o...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an energy-saving and environment-friendly LED semiconductor light source to replace the existing fluorescent lamp or Cold-cathode fluorescent light source, with partial enhanced illumination super bright display, partial freeze frame, changeable light color of the light box and other functions, making the whole volume smaller and thinner, easy to carry controllable LED brightness medical film observation light box

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