US 1694485 A
Description (OCR text may contain errors)
Dec. 11, 1923" K. NEWLAND ET AL VEHI CLE HEADLAMP Filed Jan. 28, 1926 v gwuavntoz 201! y Mit/Zand Zea .1 /Miller @Rc1 new Patented Den it, 1928.
. vEiaIcLE Haan Lamar.
Application mea January as, 192e. serinrno. 84,503.
This invention relates to improvements in motor vehicle head lights and has for its ob- 'ect the provision of a simple and improved form of headlamp involving a peculiar type f of reflector assembly by which the light source is concealed Yfrom an approaching observer and the reflected light directed upon the roadway in a manner utterly. devoid of the vagrant, dazzling and blinding rays emitted ordinarily by' head lights of the customary construction. l,
`In accordance with the invention there is provided a head lamp reflector comprising a ,major reflecting area having a cross-sectional l5 configuration approximating that of aconic section and a supplemental reflecting area of substantially parabolic formation in the -axial center of which the light source is arranged, the supplemental4 reflector, however, being disposed to face toward the rear or inside of the lamp so that the light rays may be directed up'on the main reflecting surface of. the reflector for projection from the lamp andthe light source concealed from a front view.
With these and other objects in view, as will appear as the description proceeds, the invention consists in the novel features of construction, combinations of elements and arrangements of parts hereinafter to be fully described and pointed out in the appended claim.
In the accompanying drawing: Figurel is a vertical sectional view taken through a head lamp constructed in accordance with the present invention, v Figure 2 is a front elevation thereof. Figure 3 is a .horizontal sectional view taken on the line 3-3 of Figure 1.
Referring more particularly to the drawing the numeral 1 designates the metallic shell,
or casing of a vehicle head lamp, the'same being provided with the usual open front which is closed normally by a lens 2 carried in connection with a removable ring 3 secured to the casing 1. Arranged within the casing is a reflector designated in itsentirety by the numeral 4, the same consisting of a main reflect- 111g surface 5 after the manner of an ordinary parabolic reflector. In this instance, however, the sury disposed within the casing. 1-
face 5 is in the form of an elongated conic section rather than-of the true parabola form of common usage. N
The reflector 4 is also formed to comprise at the forward portion thereof an upturned shield or mirror reflector 6, which is disposed to face the interior of the lamp and has its longitudinal axis disposed at an acute angle with respect to the longitudinal axis of the casing 1 and the main reflecting surface 5. A source of light 7, usually in the form of an incandescent lamp, is arranged in the principal axis of the shield 6 and light is reflected from said source of light as shown by dotted lines in Figure 1 of the drawing. It will be observed that by this construction the light source is masked or concealed from exterior view-but is capable of directing a powerful and effective light beam from the lamp downwardly upon a roadway to provide for safe and well illuminated vehicle operation but wherein the obnoxiousv glare, present in the standard form of head lamp has been eliminated. This is also true regardless of the focal position which the -source of light 7 bears-to the focal center of the shield or mirror reflector 6.
What is'claimed is: l
In a vehicle head lamp, a casing, a main reflector arranged within` said casing, a baffle plate extending upwardly and forwardly from the bottom portion of said reflector and confined within said main reflector, the upper edge of said plate lies substantially in the horizontal axis of said-main reflector to provide a light opening between the upper edges of said baffle plate and .said main reflector, a
second reflector formed integral with vsaid baflleplate andhaving its reflecting surface facing the interior of said lamp, a source o light in each of said reflectors, the source of light 'in saidmain reflector being so positioned 'therein that it is concealed from .v1ewl by the secondary reflector, and means for securing the baille plate to said inain reflector.
In testimony whereof we affix vour signatures. f
KELLY Newman. Lao J, MILLER. i