JPS58155329A - Method for displaying right or wrong light source in headlight tester - Google Patents

Abstract

PURPOSE:To make it possible to rationalized headlight adjustment by providing a display member in association with a light receiving member and knowing the amount of deviation of headlight beam through hearing sense or eye sight the display from the display material and adjusting a headlight so as to display at a specified position. CONSTITUTION:The headlight beam from a headlight 1 is directed to a light receiving member 3 through a lens 2, and the position A where light intensities are balanced is sought by the light receiving elements 4, 4a, 4b and 4c of the light receiving member 3. A light emitting diode 3-3 for up and down position and a light emitting diode C-C for right and left position that correspond to the position A are made to emit light. Then, if the position of the headlight 1 is adjusted to move it to a position B where light intesities are balanced, the headlight can be adjusted by looking at the light receiving member. Further, if the center of the light shooting is moved from the point A to the point B by moving the light receiving member is the direction of the arrow 5, the amount of deviation of the headlight can be known by measuring the amount of light receiving member movement.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for displaying whether a light source is correct or incorrect in a headlight tester intended for use in measuring errors in the optical axis of a headlight or adjusting the optical axis.

There have been many proposals for conventional headlight testers, but all of them are designed to measure the deviation of the optical axis of the headlight, and they are designed to project balanced light onto light receiving elements installed on the top, bottom, left and right of the light receiving member. The light receiving element was adjusted so that the amount of adjustment was measured to determine the deviation of the optical axis of the headlight. Therefore, during adjustment work, there is a problem in that the amount of labor and time required varies greatly depending on the level of skill.

However, according to the present invention, since the projection light of the headlight is displayed both vertically and horizontally on the light-receiving member, it goes without saying that the deviation of the optical axis can be immediately detected as in the conventional case.

Since the headlight side can be adjusted and displayed at the specified position, the adjustment work can be streamlined, and by separating the light receiving member and the display, the display and the operator can be brought closer together, further improving work efficiency. However, the above-mentioned conventional problems have been solved.

As a display mode, light emitting diodes are arranged in pairs on the top, bottom, left and right of the display member, and the optical axis position can be visually recognized by lighting them up, or an auditory display can be made by generating a special sound for each position. There are various methods, such as asking for the deviation of the optical axis and specifically displaying the deviation of the optical axis using audio.

That is, to explain the present invention with reference to an embodiment, when light is projected from the headlight l and projected onto the light receiving member 3 via the lens 21, the light receiving element 9 of the light receiving member 3. Hiroa, <ab,
Position A with balanced luminosity due to 4ic? : The light emitting diodes 3-3 at the upper and lower positions and the light emitting diode harbors at the left and right positions corresponding to this are made to emit light. Therefore, by adjusting the position of the headlight and moving it to a position -gB where the luminous intensity is balanced, the headlight can be adjusted while watching the light receiving member. Separately from the above, if the light receiving member is moved in the direction of arrow S to move the center of the projected light from point YA to point B,
By measuring the amount of movement of the light receiving member, the amount of displacement of the headlight can be determined. By emitting sound instead of using the light emitting diode 2 in the embodiment described above (changing the tone depending on the position), the change can be detected by hearing. In addition, the display is not limited to the periphery of the light-receiving member (for example, if the display 6 is manufactured separately and connected with the cord 7 as shown in Fig. 1, the display can be viewed near the operator). The position of the headlights can be adjusted.Also, if an audio display is used instead of an acoustic display (for example, right or left is up or down), it will be possible to adjust the position of the headlights every time the inspector gives instructions to the worker (relying on hearing 2). It can also be adjusted.

That is, according to the present invention, a display member is provided in association with the light-receiving member, and the display of the one display member allows the amount of displacement of the headlights to be immediately known visually or audibly, and also has the effect of allowing easy and accurate adjustment. There is.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a method of carrying out the invention, and FIG. 1 is a front view of a display member used in carrying out the invention. /...Headlight 3...Display members q, Qa, Il
b, Qc... Light receiving element 6... Display device Patent applicant Watanabe Electric Industry Co., Ltd. Agent Tadashi Suzuki Figure 1 Figure 2 Figure 4a 3

Claims (1)

[Scope of Claims] l A light source in a headlight tester characterized by projecting automobile headlight light onto a light-receiving member installed at a standard distance and displaying the vertical and horizontal positions of the projected light, respectively. Correct or incorrect display method 3 The display is an afterglow display, a sound display, or a simultaneous display of light emission and sound. Method 3 for displaying the correct or incorrect light source in a headlight tester according to claim 1. The display position is independent of the periphery of the light receiving member or the light receiving member. and an electrically connected indicator is used in the headlight tester according to claim 1. How to display correct or incorrect light source