CS206685B1 - Lamp for motor vehicles - Google Patents

Description

The present invention relates to a lamp for a mating vehicle, which may be, for example, a front emitter indicator located near the main headlight, descending from a parabalaid reflector, incandescent lamp and transverse hollow filament of cylindrical shape, shutter, housing one or two diffuser covers. The lamp is solved by creating a light beam with increased avítivaatí in the preater 10 * R, 10 * L and 5 * ^U , 5 * D ad aptic ace of the lamp.

The prior art Treenelev chelled flashlight, sleeve, cap and resistor flashlights are characterized by considerable inequality in the directional luminance of their output shyness, which can cause psychological dazzling of the observer during the signaling function of the stray lamps. Flashlights are off the reflector, incandescent, cap and reflector, tread pattern is applied to each output shed from one type of scattered elements, repelling the uniform directional brightness pa of their output shy, but the directional and maximum luminance ratio hedges remain in the field. , 20 * L, 10 * U, 10 * D close to the value of the tehete in the direction of the aphetic ace of the flashlight. Thereby, the light-emitting of the flowing lamp is greatly altered. The resolution of the eptimal, in which the luminance is to decrease by the ace angle of the lamp and the direction of its observation. Clements and less resistivity are exacerbated by the unevenness of the luminance distribution pa shy of such a lamp lantern, but it has no brilliant feathers with high luminance and relatively small angles of -1 · π. 111¾ -; 206685

These deficiencies are solved by the invention, the lamps for the metered sidekick lowered from the reflector ▼ that the focus of the focal point is susceptible. pedatata says that two sheets of resplter or heavier slaughterhouse epatern # are resplty tread patterned with banded spots that are herizental on one of these bales and rhetic baldness on the other, and on the ebu of these paddles there are regular spots of two types that alternate symmetrically with respect to the intersection of the axis of the lamp and the given design, which differ by the ratio H / R of their width H and the radius R.

If the reflector of the lantern is limited by the top resistor of horizontal d, vertical d-gy and edge horizontal dgh ⁸ vertical dg _T , focal distance fa for fibers Cylindrical bulbs · diameter D and length 6 'are on the skin equipped with vertical band lenses chimney H / R for the first type of banders given ^d2 Ih

-s_ ^ o, 7 R (f + / 1 / a for the second type of spots)

1,2

Ih

16. t

2.Z. (F

) (f +

2h / 2 /

16.f

On the bald with horizontal band lenses, the H / R bag for the first type of bait is given by:

H < 0.35

R

W

2.D

16. f

... / 3 / and for the second type:

^H * · 6 ²⁰ FORCE + 16 f ... / 4 / where d _lh is the top dimension of the reflector horizontal ^d lv top dimension of reflector vertical ^d 2h • marginal dimension of the reflector herizental ^d 2v • marginal dimension of the reflector vertical F • reflector distance

In these configurations, and in the front projection of the reflector, it produces four types of recycle elements. Γτνηί arises from the combination of the first types of bandwidths and reflects light directed by the reflector de space 1O * R, 1O * L, 5 * D, 5 * U. The second is a combination of the other types and converts the variance of at least 20 * R, 20 * L, 10 * U, 10 * D. The third is formed by the curing of the first vertical tread pattern type with the second herizental tread pattern type and overlaps the 10TB, 10 * 10, 10, 10, 10 * D prester. the fourth type of restyptive elements is formed by the combination of the second type of vertical tread pattern and the first type of herizental tread pattern and creates a restype of space 20 ^, 20 ^, 5 ^ 0,5¾.

All four types of scattering elements are regularly spaced on the output baldness, and with sufficiently fine tread, the output sheet from the real viewing distance will appear as uniformly bright even when viewed from the corners of the scattering rectangle.

H

In order to achieve uniformity of the curves, the ratio u of the different types of belt lenses can vary gradually symmetrically in the range given by the pulleys 1,2,3,4 from the resistor, by changing the width of the rays, by changing their radii R or by changing the width H or the radius R. Te is particularly important for horizontal tread design where the vertical angular dimension of the fiber image is much smaller than the scattering angle. In the vertical tread, the angular dimension of the filament is a non-negligible fraction of the horizontal resist angle and the shortening of the ebrasion of the filament as the reflector falls height causes the luminosity curve to be reversed in the horizontal section.

The ratio of the sheets of the four kinds of diffusing elements, which determines the resulting shape of the luminance curves, formed by the sum of their elemental faces in the front projection is determined according to the reflector area, its focal length and reflectance,

H the filament area and brightness of the filament lamp, the transmittance and the ratio of 5 lenses of the loudspeaker or lighters, depending on the luminous intensity curves specified for each lamp type by the relevant ECE regulations.

For a clearer explanation of the invention, the following figures are attached where ebr.l represents a vertical (VV) and horizontal (HH) cross-section of the optical system of the lamp according to the invention and Fig. 2 shows the light beam of the lamp according to the invention on a projection perpendicular to the x-axis and a perspective view of the roadway and ee showing relative luminance curves in its horizontal (HH) and vertical (VV) sections.

Fig. 1 illustrates an optical assembly of the lamp, which is comprised of a reflector 1 delimited by a top horizontal or vertical dimension d _TH _ and peripheral horizontal and vertical dimensions and _{for 2} h in ^Z * ^revk s from the fiber 2 has a cylindrical shape of diameter D and The length l1 is arranged horizontally in the focus F of the reflector I perpendicular to its optical axis x. The lamp 2 is fixed by the cap 7 of the lamp housing 7. In front of the reflector 1, one or two reflectors 2, 16 are provided, one of which serves as a color filter to obtain the prescribed color of the light emitted. On two of the four possible functional surfaces of the reflectors 2, 16, a tread pattern is provided, on one surface horizontal and on the other vertical, descending from lenses of two main types on each surface. These types are given by the ratio of the width H and the radius R, which is determined for each type by equations (1,2,3,4). The lenses of both types alternate on both surfaces regularly symmetrically in the direction of the x-axis intersection with the given tread surface.

To revert the luminance curves, especially in a vertical section through the beam, the ratio 5 changes gradually and symmetrically with respect to the x-axis within the range determined for each lens type by the equations (1,2,3,4).

Fig. 2 shows an image of a light beam on a projection at right angles to the x-axis of the lamp, and a perspective projection of the lamp for lamps located near the main headlamps. The solid lines are the sub-images of the tread elements that result from the combination of the first type of vertical tread lenses and the second type of horizontal tread lenses and the combination of the second type of vertical tread lenses and the first type of horizontal tread.

4.

dashed lines outline the basic images from the tread elements that are created by combining the first and second types of lenses.

The curves of the luminous intensity I / I _B8X τ of the horizontal (HH) and the vertical (VV) section of the lamp beam are also recorded here. The solid lines of the lamp according to the invention and the dashed lines of the standard luminous intensity Ι / Ι _{χ8χ of the} standard spatial distribution of the light beams given by the ECE regulations are _{shown in} solid line.

Claims (3)

SUBJECT OF THE INVENTION 1. A lamp for motor vehicles descending from a parabeleid reflector in which the focal point is placed horizontally and burns on the aces of an ace of cylindrical filament lamp, closure, one or two razor sheaths, one of which may be a color filter at the same time, reflector (1) determined by the horizontal dimension (s) _Ih /, vertical (dj ^), and the outer dimension harisant / O ^ / t vertical / dg _T / 8 ehniskeveu distances / f / and filaments / 3 / bulbs / 2 / diameter (D) and at least one diffuser (5, 6) is provided on two of its surfaces with a resistive tread pattern formed from band lenses which are horizontal on one of these sails and vertical on the other and both of which comprise two doors. types of lenses that alternate regularly symmetrically with respect to the intersection of the aces / x / lantern with the given tread pattern and which differ in the H ratio The width (s) and pellet (R) of the lenses so that the ratio (E) is provided on the skin with vertical band lenses for the first type of lenses given by ^H ('- 2' to - 7 ') and for the second type of lenses. ₂ \ h ² - * 1.2 ...........— R. .2. »(F + .J2h_ \ 16 f / a on a surface provided with horizontal belt lenses, the ratio / ^ / for the first type of lenses is given by | <0.35 _2D-- ^{f +} ΤΓΎ and for the second type of lenses H p. 2 D K ° ' ⁶ ..... 72— f + -ΣΣ16 f 2. Motorcycle lamp 1, characterized in that the combination of the vertical and horizontal tread pattern is carried out on any of the two functional plates of the resistors / 5,6 3. A motor-vehicle lamp according to claim 1 or 2, characterized in that the ratio of the width (H) and the radius (H) of the lenses gradually varies, in particular for the horizontal tread, within the limits of each lens type and by the radius (R). by changing the width / H / or the width / H / i of the radius REZ V-V