US2100913A

US2100913A - Nonglare head lamp

Info

Publication number: US2100913A
Application number: US40740A
Authority: US
Inventors: Olsson Eric
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-09-16
Filing date: 1935-09-16
Publication date: 1937-11-30
Anticipated expiration: 1954-11-30

Description

Nov. 30, 1937. QLSSON 2,100,913

NONGLARE HEAD LAMP Filed Sept. 16, 1935 INVE NTOR ER 1c (31.33am

gwma ATTORNEY Patented Nov. 30, 1937 UNITED STATES PATENT OFFICE 'I'his invention. relates to. new and useful? improvements. in a non-glare, head lamp.

The invention hasfor an object the construction of a non-glare head lamp whichis charac- ..terized. by a hollow lamp. body with its. front open, a parabolic reflector within. said body, and

a transverse glare. cutoutreflector plate mounted on an annular. member engagedon the front edge. of said lamp body; 7 101 Still further the. invention contemplates. the construction. of the. cutout reflector plate. on. the inner side of said annular member slightly below. they center thereof dividing. off upper and lower. portions. and extending upwardsat. an iii-.-

1'5 clination.. Also, the invention contemplates the provision of a translucent. glass plate. or similar" element, mounted. across the. upper portion. of

said. annular member for cutting. out all glaring. rays- 7 Another one of.the. objects of, theinvention is may be mounted across the front. oi; the hollow body and over theannular member and the translucent plate- Still further the: invention. proposes an arrangement whereby a glaredirector reflector is mounted upon the parabolic reflector and. is adapted to direct glaring rays through the. low.- er portion oi the annular frame, that. is, below the glare cutout reflector plate.

Furthermore, the invention contemplatesv an arrangement whereby the transverse. glare cut.- out reflector plate may be variedin size for. controlling the: extent to-which the glaring and the non-glaring rays emanate from the device.

Another object. of the invention is the construction of. a device as described which is simple and durable and which can be manufactured and sold at areasonable cost.

' 0 For further comprehension of the invention, and of. theobjects and advantages thereof, refer ence will be had to the' following description and accompanying drawing, andto-the appended H claims in whichv the various novel. features of the invention are more particularly set forth- In the accompanying drawing forming a material part of this disclosure:- r

Fig. 1 is a transverse vertical sectional view of a device constructed according to this: in-

vention, certain of the parts being illustrated separated from each. other to disclose interior construction.

Fig. 2 is a front elevational view of. the device shown in Fig. 1 with the front lens removed.

construct the parts so. that. aconventional lens.

Fig. a is a view similar to- Fig. 1 but illustrat-r ing a modified construction.

Fig. +1 is a fragmentary sectional-viewt'akerr on the line dtof Fig. 3.

The non-glare-head lamp, according to thlsfini- 5 vention; comprises a hollowlampbody limwith'.a,

front open end [0 A parabolic reflector II; is mounted within the body and has its edge; H terminating in the vicinity of the edge Illa. A. lampbulb I2 is mounted on thereflector. Hi for 10 the illumination of the'lamp. An annular meme ber f3" engages across the front edge Of. the re.-: flector-H and thelampbody. This annularmema ber supports atransverse glare cutout reflector plate [4 arranged on-the in'ner'sidethereoftslight=' 15 1y below the horizontal center and: dividingfofi? an upper 'section 13* and a'lower section I31": The transversereflector plate I4 extends up wards at a slight angle, as illustrated in Fig: 1: A translucent plate [5' is-maintained across the upper' portion I'3 of the annular member and is for the purpose of dimming glaring: rays; A' lens I6 is mounted across: the firont' oi: the. lamp; body and serves to hold the annular member inposition. p. A glare director reflector ll is mountedqupon' the parabolic reflector H and isfor therpurposje'; of directing glaring raysthrough thelower portion l3 of the annular member so thatv the; lowerportion of the lens is illuminated for'illuminating the road; a r

The hollow lamp body I0: is provided. with a bottom boss Ill upon which a threaded stud 1 7 is mounted by whichthe lamp may be mounted upon a vehicle. The parabolic reflector Ill 35 is of slightly. smaller size than the interiorcome. pass of the lamp, producing a space [8 there-' between. This space is utilized to house the elec trio leads IQ 'forthe electric lamp II. The ele'ci tric lamp is mounted-in a'socket 10. mounted upon the parabolic reflector I l The leads l'll: extend to a socket 2| mounted upon the'lam'p body I".

The front edge of'the body Ill is formed into a i a flangeportion 10 in which isset a'resilient transverse. glare cutout reflector plate I 4 pref- 55V erably is polished for assisting in reflecting the glaring rays at the bottom as desired. The lower area of the parabolic reflector immediately below the cutout reflector plate I4 is of a dull finish. This area is indicated by the distance A. The purpose is to prevent direct glaring rays from being reflected upwards through the lens of the lamp.

The lens I6 is mounted within an annular shaped frame 24 which is adapted to extend over the annular member l3 and over the edge of the lamp body 10.

A hollow plate 25 is mounted within the frame 24 and is formed with a bulged area 25 adapted to engage in a receiving groove lll formed parallel to the edge of the lamp body and slightly spaced in therefrom. A set screw 26 engages through the frame 24 and is adapted to abut against the holding element 25 to flex it tightly within the groove by which the lens is fixedly and firmly mounted on the lamp body.

The glare reflector I1 is of a curvature so as to concentrate the glaring light through the opening l3 of the annular member. It is hingedly mounted by a pintle pin 26 upon the parabolic reflector II. A mechanism is provided to hold the glare reflector I! in various adjusted positions. This mechanism consists of a stationary bushing 21 mounted through the parabolic reflector H and threadedly connected with a stem 28 having an enlarged head 29 extending through an opening 30 in the lamp body ID. This head 29 is formed with a transverse out 3| by which the stem may be easily turned. The inner end of the stem 28 connects with a universal joint 32 mounted on the glare director reflector H. The arrangement is such that the head 29 may be turned in one direction or another direction to adjust the reflector I! upwards or downwards.

In Figs. 3 and 4 a modified form of the invention has been disclosed which is substantially identical to the previous form, the corresponding parts being recognizable by the same reference numerals, but distinguishing in the fact that provision is made for adjusting the transverse glare cutout plate l4 thereof. In this form the plate I4 is composed of a plurality of curved flat sections I4, I4 etc. These curved sections are normally held in, place by screws 34 engaging through the ends thereof and into stationary rails 35 mounted along the walls of the reflector l l.

Thus, sections of the cutout reflector plate may be removed, or other sections added to control the relation between the inner edge of the reflector cutout plate and the lamp l2.

The operation of the device is as follows: When the lamp is upon a vehicle and in operation, all of the direct and reflected rays which pass through the upper portion l3 of the annular member will be dampened or toned down by the translucent plate IS. The lamp will be readily visible to oncoming vehicles but will not cause the drivers thereof inconvenience by straining their eyes. The lamp directs and reflectsglaring rays through the lower portion I3 of the annular member, and these rays are directed against the ground so as to provide sufficient illumination of the vehicle. The glare director plate I! may be adjusted to a position in which the greatest number of glaring rays will be directed through the lower portion 13 of the annular member.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and 1? right is reserved to all changes and modifications coming within the scope of the invention as deflned in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:--

1. In a non-glare head lamp, a parabolic reflector, an annular member engaged over the front of said reflector andhaving a top translucent area and a bottom transparent area, a lamp mounted within said parabolic reflector and located above the axis and at an intermediate position between the outer edge and the inner base end of saidreflector, a transverse member supported on said annular member and extending rearward from the junction of said translucent and said transparent areas to a position in which its rear edge is adjacent said lamp to form separate passages for the light of said lamp, and a pivotal glare director reflector mounted on the base portion of said parabolic reflector just behind said lamp and adapted to be adjusted to direct the reflected rays of said lamp over the transverse member and through one of said passages or below the transverse member and through the other of said passages.

2. In a non-glare head lamp, a parabolic reflector, an annular member engaged over the front of said reflector and having a top translucent area and a bottom transparent area, a lamp mounted within said parabolic reflector and located above the axis at an intermediate position between the outer edge and the inner base end of said reflector, a transverse glare reflector having a highly polished under side and supported onsaidannularmemberand extending upwards at an angle from the junction of said transparent and said translucent areas to divide said parabolic reflector into upper and lower passages so a part of the direct rays of said lamp will pass through the upper of said passages, a glare director reflector mounted on the base portion of said parabolic reflector just behind said lamp to direct other rays of said lamp through the lower of said passages against the highly polished under side of said glare reflector whereby said rays will be reflected at an angle to the road in front of said lamp.

3. A non-glare head lamp, comprising a hollow lamp body with a front opening, a parabolic reflector within said body, a lamp mounted within said parabolic reflector and located above the axis thereof and at an intermediate position between the outer edge and the inner base end of the reflector, an annular member engaged over the front of said reflector and having a top translucent area and a bottom transparent area, a flat transverse plate extending between said lamp and the junction of said transparent and said translucent areas so that its rear edge is adjacent said lamp forming separate passages for the direct light rays of said lamp, a pivotal glare director reflector mounted on the base portion of said parabolic reflector just behind'said lamp and adjustable to direct the reflected rays of said lamp over said transverse plate and through one of said passages or below said plate and through the other of said passages, and means for controlling the operative size of said transverse glare reflector plate to control the extent to which the laring rays of said light will emanate from the device.

4. A non-glare head lamp, comprising a hollow lamp body with a front opening, a parabolic reflector within said body, a lamp mounted within said parabolic reflector and located above the =76 axis thereof and at an intermediate position between the outer edge and the inner base end of the reflector, an annular member engaged over the front of said reflector and having a top translucent area and a bottom transparent area, a flat transverse plate extending between said lamp and the junction of said transparent and said trans-- lucent areas so that its rear edge is adjacent said lamp forming separate passages for the direct light rays of said lamp, a pivotal glare director reflector mounted on the base portion of said parabolic reflector just behind said lamp and adjustable to direct the reflected rays of said lam p over said transverse plate and through one of said; passages or below said plate and through the other of said passages, and means for controlling jacent sections removably mounted on said rail elements.

ERIC OLSSON.