BRPI1101714A2 - Improvements introduced in a luminous frame for reading of optotypes and identification of signs and symbols - Google Patents

Abstract

IMPROVEMENTS INTRODUCED IN LIGHT TABLE FOR OPTOTYPE READING AND IDENTIFICATION OF SIGNS AND SYMBOLS. More precisely, it is a light board (1) of the type composed of housing (2) and translucent lid (3), where internally arranged lighting assemblies (CI) 'and said lid are multiple visual elements (EV) in the form of letters. , optotypes, symbols and colored areas; said lighting assemblies (Cl) are formed by multiple light-emitting semiconductor diodes or LEDs (4a), each mounted on a respective electronic board (PCI) within a reflector (4b); each lighting assembly (Cl) is mounted on the bottom of the housing (2) and faces the inner surface of the lid (3) so as to be aligned with a visual element (EV) or an area formed by visual element groups ( EV) stamped on said lid (3); each illumination set (CI) is individually actuated by a remote control (5) which in turn includes a keyboard (5a) and a display (5b) for viewing the visual identification means (MV) in addition to The communication between the control (5) and the housing (1) is 'wireless' via a radio frequency transmitter (T) or equivalent and a compatible receiver (R) installed in the housing (1).

Description

"IMPROVEMENTS INTRODUCED IN LIGHT TABLE FOR OPTOTYPE READING AND IDENTIFICATION OF SIGNS AND SYMBOLS".

Application field

The present invention is concerned with improvements made to a light board for making optotypes and identifying signs and symbols where, in particular, said light board is used for the assessment of possible visual anomalies by the total or partial illumination of specific areas of the board. Lighting is provided by lighting assemblies, preferably in the form of LEDs, which are operated by remote control apparatus manipulated by the specialist or auxiliary.

TECHNICAL BACKGROUNDS

It is known to those skilled in the field that

Visual anomalies are usually a consequence of lens or cornea problems, which are often corrected with daily use of prescription glasses, contact lenses, or even through surgical interventions. The most common types of visual anomalies are reduced central vision and reading vision, as well as low visual acuity which may also result from decreased peripheral vision, loss of color vision, inability or loss of eye aptitude. adjust to light, contrast, or brightness.

It is also known that for the assessment of visual acuity, currently, there are several types of techniques and equipment. A known test is one in which the patient remains standing, standing behind an imaginary line six meters from a test table, which is suspended in a suitable place. The patient's eyes are kept open by covering only one eye with the palm of a hand or a piece of paper, while the patient reads the optotypes arranged in the exposed table. Said table may be of the "Snellen" type, which provides for a gradation of letters where each row is designated by a number corresponding to the distance at which a normal eye is able to read. Another table similar to that described is configured by a set of optotypes, which is especially used by patients unfamiliar with the alphabet or, in the case of children, where said optotypes are randomly rotated and positioned "E" figures. in four different orientations throughout the table.

s

In this case, the patient is asked to point in which direction the

io three "bars" are facing.

Currently, such tables can be luminous, being formed by boxes, inside which are mounted incandescent lamps; a lid made of milky acrylic is mounted on the open and front peripheral edge of the box, where the letters, optotypes or colored signs, particularly green and red, are stamped by printing or gluing to assess another anomaly known as color blindness, while the 'on and off' of all lamps, together or separately, is done in the box itself

or by remote actuation. The main drawback of conventional

luminous tables lies in the fact that the incandescent lamps, provided in the box, reproduce a yellow light illumination fact that hinders the correct identification and reading of the symbols also changing the colors of the signs and, consequently, resulting

in an incorrect assessment.

Another drawback lies in the fact that

Incandescent lamps generate an excessive amount of heat

that does not dissipate to the outside of the box by changing the

characteristics of the board and may significantly impair it. Another drawback lies in the fact that incandescent lamps promote a high consumption of electricity, increasing costs for the doctor.

Another drawback lies in the fact that the remote control used to drive the conventional light board does not have enough visual elements for practical and fast activation promoting slowness during the visual evaluation process.

TECHNICAL STATUS ANALYSIS In database searches

found a document from n ^. MU 8700534-4 which deals with an optotype chart blackboard comprising a blackboard or the like, of variable length and height compatible with the arrangement of the standard optotype chart which is covered with glass or acrylic shielding. BRIEF DESCRIPTION OF THE INVENTION

Thinking of providing itct improvements

In the consumer market, the applicant has developed improvements made to a luminous board for reading optotypes and identifying colored and non-colored signs and symbols where, in particular, the luminous board is used for the assessment of possible anomalies.

visual.

Mentioned light board consists of

a box with a translucent multi-conditioner lid

lighting assemblies, preferably LEDs, which are aligned

visual elements applied to said lid by printing or

other suitable form such as film.

Said lighting sets are

individually controlled by a remote control which, in turn, includes a keypad and a display for visual identification, and the communication is 'wireless', via radio frequency transmitter or equivalent, while said box is equipped with a receiver

compatible.

Each LED lighting set is

mounted to a printed circuit board which, in turn, is mounted to a reflector. The light, preferably white, provides the brightness and brightness required for the identification and reading of visual elements.

In this way, by activating the remote control

even transmits information to the receiver

sends power to the selected LED (s) while remaining access by

twenty seconds. In case of activation of other LEDs) occur before

After completing the twenty seconds previously lit LEDs, this

The latter is automatically turned off by lighting up the selected LED (s).

EVALUATION GOALS

The main advantage of this framework is

in the fact that lighting of the visual elements is developed through

set of LEDs, providing a

homogeneous irradiation, in addition to the white light allow for clear reading

of the visual elements.

Another advantage lies in the fact that LEDs reduce heat generation and dissipation, contributing to the conservation of the light board, besides providing energy saving.

electricity.

Another great advantage of the present object is that the remote control configures the specialist's auxiliary equipment during the exam, since the letters, optotypes or colorful visual identification signs are readily displayed on the remote control's display, making it easier to select them for lighting in the remote control. light board, contributing to the process of visual assessment.

DESCRIPTION OF DRAWINGS

Complementing the present description in order to

For a better understanding of the features of the present invention and according to a preferred practical embodiment thereof, accompanying the accompanying description is a set of drawings, in which, by way of example, but not limitation, its operation has been represented:

Figure 1 reveals a perspective view.

mounted light board and remote control;

Figures 2 and 3 show front views of the

luminous board and remote control; and

Figure 4 illustrates a cross-sectional view shown in

figure 2.

DETAILED DESCRIPTION OF THE INVENTION

With reference to the drawings, this

The invention relates to "LIGHTING FRAMEWORKS FOR OPPOSITION READING AND IDENTIFICATION OF SIGNS AND SYMBOLS", more precisely it is a light box (1) of the type consisting of housing (2) and translucent lid (3), where internally lighting assemblies (Cl) and said multi-visual cover (EV) are arranged in the form of letters, optotypes, symbols and colored areas; said light panel (1) is used for the assessment of possible visual anomalies by the total or partial illumination of

specific areas of that table.

According to the present invention, the multiple

lighting assemblies (Cl) are formed by multiple diodes

light-emitting semiconductors or LEDs (4a), each mounted on a respective electronic board (PCI) disposed within the reflector (4b), each LED (4a) preferably having white light. Each lighting assembly (CI) is mounted at the bottom of the housing and faces the inner surface of the lid to be aligned with a visual element (EV) or an area formed by groups of

visual elements (EV) stamped on said lid (3).

Each lighting set (Cl) is triggered

individually by a remote control (5) which, in turn, includes a keyboard (5a) and a display (5b) for viewing the visual identification means (MV), as well as communication between the control (5) and the housing (1) is 'wireless' via radio frequency transmitter (T) or equivalent, and compatible receiver (R) installed in housing (1).

According to a constructive way

Preferably, the visual elements (EV) of said lid (3) are arranged in multiple rectangles (6) arranged in three columns, one Centering column (C1) and two side columns (C2) and (C3). The right lateral column (C2) provides optotypes (6a) in the form of letters arranged in rectangles (6), but in decreasing dimensions. The left side column (C3) comprises optotypes (6b) in the form of symbols and arranged in the same manner as already mentioned. The central column (C1) comprises optotypes (6c) in the form of signs, such as circles, stars and others, which may predict random colors, preferably

blue, yellow, red and green.

Already the means of visual identification (MV)

applied to the remote control (5) (figure 3) are set by

rectangles (7) fitted with optotypes (7a), (7b) and (7c) identical to

optotypes (6a), (6b) and (6c) provided for in the switchboard (1) where each

Rectangle (7) includes a push button (7d). Thus, by activating the remote control (5) it transmits information to the receiver (R) of the light board (1) which authorizes the energization of a lighting assembly (Cl) which remains accessible, within a preferred assembly, by twenty seconds. If another light set (Cl) is triggered before the twenty seconds of the previously lit light set (Cl) is activated, the latter is deleted and then the selected light set (Cl) is lit.

It is true that when the present invention is

In practice, modifications may be made with respect to certain details of construction and shape without implying departing from the fundamental principles which are clearly substantiated in the claim framework, thereby understanding that the terminology employed was intended to no limitation.

Claims (5)

1. PERFORMANCE INTRODUCED IN LIGHT TABLE FOR OPTOTYPE READING AND IDENTIFICATION OF SIGNS AND SYMBOLS ", more precisely it is a lightboard (1) of the type composed by box (2) and translucent lid (3), where they are internally arranged illumination (Cl) and said multi-element cover (EV) in the form of letters, optotypes, symbols and colored areas, characterized in that the illumination assemblies (Cl) are formed by multiple light emitting diodes or LEDs (4a ) each mounted on a respective electronic board (PCI) disposed within the reflector (4b), each illumination assembly (Cl) is arranged at the bottom of the housing and facing the inner surface of the lid to be aligned with a visual element (EV) or an area formed by visual element groups (EV) stamped on said lid (3), each lighting assembly (Cl) being individually actuated by a remote control (5) which , in turn, includes a keyboard (5a) and a display or display (5b) for viewing the visual identification means (MV), and the communication between the control (5) and the housing (1) is wireless 'via a radio frequency transmitter (T) or equivalent and a compatible receiver (R) installed in the housing (1). 2.§) "PERFORMANCE INTRODUCED IN LIGHT FRAME FOR READING OPTOTYPE AND IDENTIFICATION OF SIGNS AND SYMBOLS" according to the preceding claim, characterized in that the light emitters or LEDs (4a) have white light, 3.§) "LIGHT-FRAMED PERFORMANCE FOR OPTOTYPE READING AND IDENTIFICATION OF SIGNS AND SYMBOLS" according to claim 1, characterized in that the visual elements (EV) of said lid (3) are arranged in multiple rectangles ( 6) organized into three columns, one central column (C1) and two side columns (C2) and (C3); the right lateral column (C2) provides optotypes (6a) in the form of letters arranged in rectangles (6), but in decreasing dimensions; the left side column (C3) comprises optotypes (6b) in the form of symbols and arranged in the same manner as already mentioned; central column (C1) comprises optotypes (6c) in the form of signs such as circles, stars and others which may provide for random colors, preferably blue, yellow, red and green. 4.§) "IMPROVEMENTS INTRODUCED IN LIGHT FRAME FOR OPTOTYPE READING AND IDENTIFICATION OF SIGNS AND SYMBOLS "according to claim 1, characterized in that the visual identification means (MV) applied to the remote control (5) are configured by rectangles (7) provided with optotypes (7a) , (7b) and (7c) identical to the optotypes (6a), (6b) and (6c) provided in the light board (1) where each rectangle (7) has a push button (7d).