BRPI1003122A2 - slit lamp lighting system set with super led light source - Google Patents

Abstract

LIGHTING SYSTEM SET FOR SLOT LAMPS WITH SUPER LED LIGHT SOURCE. Where the efficiency of the system was proven and the quality of the lighting was superior to the equipment that uses ordinary lamps. The developed system consists of a single LED (1) mounted together with an optical system to condense the light lenses (2) and (5) filters to change the color of the LED light (3) a reflecting mirror (6) that projects lighting for the patient's eye the shape of the light is provided by a variable slit (4). We found that the system is completely feasible and that the versatility of the system makes it possible to adapt it even to existing slit lamps using part of its original optics or manufacturing a new complete product with this lighting. You can also simplify the system by eliminating the need for colored filters if using an RGB colored LED that would make the manufacturing process simpler and the product more competitive as these filters are generally expensive and require complex films that depend on equipment too expensive to produce.

Description

"ASSEMBLY WITH SUPER LED SOURCE LAMP LIGHTING SYSTEM"

The present invention relates to a new light emitting type lighting system for use in tent lamps used for ophthalmic diagnostics and the system can also be used in other ophthalmic devices such as microscopes or other products for use in the field. in ophthalmology that use lighting to visualize the human eye. This system has important technological and functional improvements, according to the most modern engineering concepts and in accordance with the required norms and specifications, having its own characteristics and fundamental requirements of novelty and inventive activity, resulting in a series of real and extraordinary technical, practical and functional advantages.

The proposal is to use a super LED as a light source in place of conventional lamps or conventional halogen lamps, as it has numerous advantages over them.

Slit Lamp Description

Slit lamps are instruments used to project light with controlled intensity and shape into the human eye. This light should be powerful enough for the doctor to see the various external and internal structures of the human eye, this equipment also has a condensing optics system to concentrate and project this illumination and binocular optics to provide eye image enhancement. . The name slit lamp comes from the fact that this equipment has a slot that can vary in size by a mechanical movement which the light must pass through to give this projected light the elongated rectangular shape. Description Of Conventional Lighting For Slit Lamps

The lighting systems used today in this type of equipment use conventional, halogen or Xenon filament lamps that have several negative effects for any medical equipment project. Conventional lamps have a filament that must heat to a very high temperature so that it is incandescent and can turn this heat into light. Much of this heat is transmitted to the system and causes overheating and there is also no precise control of the illumination color and wavelength especially when dimmed. This light when dimmed (varies intensity by a potentiometer) changes color, which impairs the reproducibility of the details of the observed anatomical structures. Conventional lighting also has harmful wavelengths such as ultraviolet light that can be emitted to both the patient's and the examiner's eye.

Another negative factor is the production process of conventional lamps. In this process, a flame generated by the burning of gases at high temperatures is used to shape the glass, using even halogen gases inside and some models have mercury in its composition, which results in losses and excessive costs for handling the gases. waste and garbage produced by the disposal of these lamps. Excessive heat generated from slit lamps with conventional illumination creates discomfort and risk of burns from being too close to the user's and patient's head and the risk of this light being focused on the patient and examiner's eye. Some slit lamps even have dielectric filters on their lenses to bar some wavelengths of light. These filters can have the function of changing the color of the illumination usually green, blue, yellow or red, filtering out harmful light in case of ultraviolet or making the illumination more uniform with light diffusing filters.

OBJECTIVES OF THIS PATENT

The Super LED Slit Lamp is a version of conventional slit lamps using an innovative high power LED lighting system known commercially as Super LED. Super LED is the generic name given to semiconductor light devices, also known as diodes, with a power greater than or equal to 1W.

Conventional light-emitting diodes have a maximum power of 100mw, while Super LEDs have a power greater than 1w combining luminous flux similar to incandescent or Xenon lamps with LED quality.

An important feature that the Slit Lamp object of the present patent has is the well-defined light spectrum. This feature ensures that the device has 0% ultraviolet or infrared irradiation, and improves the luminous efficiency, which is the ratio between energy consumed and energy effectively transformed into light.

All this fixture was built based on Haag Streit standard (top-down illumination) for defending lamps, but can be perfectly used in any other type of slit lamp such as Zeiss standard (bottom-up illumination), slit lamps portable or battery-powered, but without prejudice to the scope of the present invention. This makes this lighting system totally innovative as it has been developed a power supply fixture and light collimation lens totally different from those currently used for conventional lamps. In the construction of the slit lamp, lenses, mirrors and filters are all made of the highest quality optical glass, with anti-reflective films and quartz layers for protection.

This new slit lamp model, which uses the super LED as its light source, makes it possible to use it directly connected to the mains or through a rechargeable battery which makes the system more portable.

However, the great innovation is that a powerful super LED is used as a light source as a lighting device that enables clearer illumination with zero incidence of ultraviolet radiation.

The major advantage would be low maintenance, as its lighting device is not a filament light bulb but a powerful semiconductor LED, so it is a solid, vibration resistant and well-defined light spectrum lamp. .

The super LED is controlled by a state-of-the-art micro-processed electronic circuit which is also the subject of this patent and allows constant light flux, variation of light intensity without loss or change of light color. There is also a version for battery use with battery cycle monitoring and time counting that prevents accidental drainage of the battery if the device is left on for more than 10 minutes.

In order to have a clear view of the new slit lamp lighting system set with the super LED light source highlighted, accompanying the accompanying illustrative drawings are referred to in order to further clarify the following detailed description:

Figure 1 is a schematic drawing of the slit lamp lighting system assembly with Super LED light source, object of the present invention;

Figure 2: represents a perspective view of the super LED;

Figure 3: represents the light beam graph (wavelength).

According to the above-mentioned figures, and in their detail, the super LED light source slit lamp assembly of the present invention is comprised of an optical system composed of the LED (1) which emits light to a lens. (2) which directs the rays to the green and red colored dielectric filters (3) which in turn direct the rays to the slit-shaped spot (4), whose rays are directed to the condensing lens (5), the rays being reflected to the reflecting mirror (6) to the patient's eye (7).

The image of the various structures of the eye are observed by the examiner by an optical system already used in conventional slit lamps that is mounted in line with the patient's eye and provides the image enhancement and stereoscopic vision. The system can be assembled in various variations and also using one color LED or three Ieds to form the basic RGB (Red, Green, Bllue) colors which would eliminate the need for color changing filters (3) without prejudice to the basis of the patent and the innovation which is the type of lighting used, provided by one or more LED type emitters.

No slit lamp illumination system is known to collectively combine all of the above constructive and functional characteristics, which is either directly or indirectly or as effective as the slit lamp illumination object of this patent. .

It is, therefore, a system of great importance for its intended purpose. It consists of a new way of obtaining a slit lamp lighting system, fully meeting the proposed objectives and fulfilling the intended functions in a practical and efficient manner. Thus providing a number of advantages inherent in its applicability, having its own characteristics, innovative and endowed with fundamental requirements of novelty and inventive activity, required to deserve the patent protection of invention. This system also leaves the possibility for further research that may be developed in the field of applicability and usability of the system due to its new lighting feature without, however, jeopardizing the present patent.

Claims (2)

1. "ASSEMBLY FOR SUPER LED SOURCE LAMP BULB LIGHTING SYSTEM" characterized by the fact that it consists of an optical system consisting of the LED (1) that emits light to a condensing lens (2) which directs the rays to the green and red colored dielectric filters (3) which in turn direct the rays to the slit-shaped spot (4), whose rays are directed to the condensing lens (5), the rays being reflected to the reflective mirror (6) for the patient's eye (7); 2. "ASSEMBLY WITH SUPER LED SOURCE LAMP BULB LIGHTING SYSTEM" characterized by the fact that the system can be assembled with various variations and also using a colored LED or three leds to form the basic colors RGB (Red, Green, Bllue).