JPS6071397A - Indicator for angle of approach - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an approach angle indicating device for use on an airport runway.

[Technical background of the invention and its problems]

This type of approach angle indicating device is installed at airfields with advanced equipment such as automatic landing gear, and four precision approach angle indicating devices are placed on one side of the runway (1) as shown in Figure 1. Indicator lights (2) and non-precision approach angles are installed at airfields without advanced equipment such as automatic landing systems, and a total of 8 are placed on both sides of the runway (1) as shown in Figure J.2. There is an indicator light (3).

The precision type is designed to be bright because it is operated even in low visibility conditions where it is impossible to land without using an automatic landing system, etc., and the non-precision type is not used in low visibility conditions, so half of the precision type is formed with a bright light. It's just not required.

These precision and non-precision approach angle indicator lights (2) (3)
) has traditionally been achieved by changing the brightness of a light source consisting of an internal parallel optical system, and since the brightness of the light source is determined at the manufacturing stage, it is not suitable for precision use. In order to use it for precision purposes, it would be necessary to disassemble it and replace the light source and power supply, and the reality is that it has never been used for other purposes.

However, recently there has been a demand for an approach angle indicator light for precision use that can be easily converted to non-precision use.

[Purpose of the invention]

The present invention has been made in view of the above points, and it is an object of the present invention to provide an approach angle indicating device that can be easily converted from precision use to non-precision use without requiring complicated modification work such as replacing the light source and power supply unit. be.

The approach angle indicating device of the present invention includes a parallel optical system, an optical filter disposed to cross a part of the parallel optical path of the parallel optical system, and a plurality of displays comprising a lens disposed in front of the filter. The precision approach angle indicator light is configured to be separable for each display unit, and the precision approach angle indicator light is separated to form a non-precision approach angle indicator light. be.

[Embodiments of the invention]

Next, one embodiment of the present invention will be explained based on FIG. 3 and FIG. 4.

Figures 3 and 4 show a precision approach angle indicator light (2). In the figure of one vessel, (Iυ is the vessel body, and two box-shaped vessel bodies 0 (
(to) (13). These vessel bodies (1a
+U is fixed by a retaining structure (not shown) provided on the opposite side, and can be separated by releasing the engagement.

Display units (14) (141) are provided in these two body parts (13) (I3), respectively.This display unit 04 has a lamp support as a parallel optical system, and this lamp 0→ An optical filter (located in front of the
(a) and a lens (17) located in front of the filter αe to control the emission direction and spread of light, and is supported and fixed to the frame Qej.

The brightness of the lamps (15) is one for non-precision use (3).
), and together the two can provide the brightness required by the precision indicator light (2). Further, the filter α0 is usually red at the top and colorless at the bottom.

In addition, α1 is the power line for feeding power to the lamp (151,
(2 (1) is a height adjustment leg for adjusting the height of the indicator light (2) with respect to the runway to a predetermined value regardless of the installation position,
They are provided in each vessel body part Q3)031, respectively.

Next, the operation of this embodiment will be explained.

When used as a precision approach angle indicator (2), as shown in Figure 3, the two body parts +13) (Ig) are fixed, that is, it is equipped with two display units (14) (14). One approach angle indicator light (2) will be provided in this condition, and four of these will be installed on one side of the runway (1) as shown in Figure 1.

In addition, when using this for non-precision use, two container parts 03
) (13) are disengaged and separated, and one approach angle indicator light (3) is provided with one display unit Q4) each.
), and four of them are installed on each side of the runway (1) as shown in Figure 2.

In this way, since the display unit (+4) (+4) was provided independently in each vessel body part (13) (+3j),
Each display unit (14) by separating the jα country,
(14) can also be separated and the brightness can be set to approximately i, so it is possible to replace the approach angle indicator light (2) for precision use with the approach angle indicator light (2) for non-precision use without having to make complicated changes such as replacing the lamp (1 → and the power supply part). Can be used as a corner indicator light (3).

In the above embodiment, there are two vessel bodies (1310:n and display unit Q4H14), but there may be three or more because of the brightness difference between precision and non-precision display units.

〔Effect of the invention〕

According to the present invention, since the plurality of display units are provided so as to be separable, the plurality of display units can be used in a combined state as an approach angle indicator light for precision use, and when used as an approach angle indicator light for non-precision use. It is only necessary to separate the display units individually, and there is no need to replace the parallel optical system and the power supply section for feeding power to the parallel optical system, as in the conventional case, and it can be easily repurposed.

[Brief explanation of drawings]

Figure 1.1 is a layout diagram of a precision approach angle indicator light, Figure 2 is a layout diagram of a non-precision approach angle indicator light, and Figure 3 is a cross-sectional diagram showing an embodiment of the approach angle indicator light of the present invention. The top view and fang 4 are longitudinal cross-sectional views of the same. (2)... Approach angle indicator for precision, (3) - Approach angle indicator for non-precision, ■... Display unit, (1... lamp as parallel optical system, α6) fist - optical filter, Living...
lens.

Claims (1)

[Claims] (1) For precision use, equipped with multiple display units consisting of a parallel optical system, an optical filter arranged to cross a part of the parallel optical path of this parallel optical system, and a lens arranged in front of this filter. An approach angle indicating device characterized in that an approach angle indicator light is configured to be separable for each display unit, and a non-precision approach angle indicator light is configured by separating the precision approach angle indicator light.