JPS5863807A - Wind speed display device - Google Patents

Abstract

PURPOSE:To reduce power consumption and to make maintenance easy, by disposing optical fibers opposing to the transparent dots forming display numerals provided to an opaque board and providing optical switches on the way of optical fibers and a light source and a reflecting body at the other end of said fibers. CONSTITUTION:An opaque front board 1 of a display device TD is formed by dot groups A, B and a dot group C expressing M (meter), and optical fibers 3-1-3-n are provided opposing to there transparent dots 2, and optical switches 8-1-8-n which are controlled selectively by a controlling circuit 9 are disposed on the way of the optical fibers and a light source 5 and a reflecting body 6 are provided to the other end of said fibers. The optical switches 8-1-8-n are controlled selectively by a wind speed measuring signal which generates from a wind speed meter 10 and the wind speed is displayed as e.g. 07M (as shown black dots). Consequently said device reduces its power consumption as compared to lamps arranged like dots and simplifies its maintenance, because only one light source is used.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wind speed display device iiK suitable for digitally displaying wind speed.

There are many types of display devices that digitally display wind speed, but they are equipped with a high-intensity lamp.

One reason is that it rotates a movable plate with numbers on it.

There are some that rotate numerical terms.

However, these lamps have problems such as a short lamp life, high power consumption, and a high probability of movable parts breaking down.

Also, if maintenance is not done enough, the dots that make up the numbers will become missing. The present invention is intended to improve the problems of the conventional display device, and will be explained below with reference to the drawings.

Figure 1 shows the basic concept of this invention, (1)
3j is a front plate made of glass or plastic that is opaque except for the dots (2) that form the numbers. The light passing through the optical fiber causes the corresponding dot to glow.

One end of the optical fiber is fixed to the dot portion of the front plate (1), and the other end is located at the light generating device #(4).

That is, the light generating device (4) is composed of a light source (for example, a logen lamp) (5) and a reflector (REFLECTOR) f61 that reflects the light emitted from the light source (5). The other end of the fiber (31) is located at the focal point of the reflector (6).

Therefore, when the light source (5) is turned on by power from the power source (71), the light enters from the other end of the optical fiber (31) and reaches one end.

Figure 2 shows an i-speed display based on the concept shown in Figure 1, with dot groups A and B forming a two-digit number, and dot group C displaying rJC meters. This figure shows the case where the surface of the display device TD is formed.

Therefore, the three dot groups A, B, and C are displayed as 07M, for example.

In addition, in Figure 2, the black circles are selected and the numbers rOJ
rB and rMJ are shown. on the other hand.

The white circles are dots because they are selected.

FIG. 3 shows an embodiment of this invention, and in FIG. 3, +
l1ld front & (3-4) ~ (6-n) )j
Optical fiber, (4) is a light generator, (5) is a light source, 16
1Fi reflector, (71 pcs power supply, (s-+) ~ (8-n)
The dots are selected by an optical switch, and a control circuit (9) installed in the middle of the optical fiber selects the dots individually. An anemometer that measures the wind speed by θ1, and this anemometer θ1 may be, for example, a nemometer, a Pitot tube type, a type that uses the change in electrical resistance of a hot wire with zero force, or an ultrasonic type. The circuit (9) selectively controls the optical switch according to the wind speed measurement signal generated by the meter.

That is, the display is performed in the same manner as a conventional digital wind speed display device.

In the embodiment, an optical switch is provided for each optical fiber line, but it is also possible to provide one optical switch for a plurality of optical fiber lines.

By the way, like this invention with optical fiber.

The kyL speed display device, which combines a light source and one reflector, consumes less power than the commonly used conventional lamps that are arranged in a dot shape, and is easy to maintain because it has only one light source. The cost required for maintenance is also low.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining the basic concept of this invention,
FIG. 2 is a diagram showing the surface of the wind speed display device, and FIG. 3 is a diagram showing an embodiment of the wind speed display device according to the present invention.
1 piece front plate, (2) piece driver), f31 piece optical fiber, (
5) is a light source, (61 is a reflector, (7) is a power source, (8) is a dimming switch, (9) is a dot selection control circuit, and the figure is an anemometer. In each figure, the same and - are equivalent. Parts are shown with the same reference numerals. Agent Shin Kuzuno - Kage 1 Figure 2

Claims (1)

[Claims] A plate made of glass or plastic. The reflector of the light generating device includes a front plate that is opaque except for a plurality of dots forming display numbers, and one end of each of which is located at each dot, and the other end of which is a light source and a reflector (REFIJcTOR). Consisting of a plurality of optical fibers located at a focal point, an optical switch provided in the middle of the optical fiber, a controller for selectively controlling the optical switch, and an anemometer that provides a wind speed measurement signal to the controller, A wind speed display device characterized in that the wind speed is digitally displayed using the optical fiber dots.