USRE14083E - myers - Google Patents

Description

C G. MYERS.

LAMP.

APPLICATION FILED NOV- 5. I915.

Reissued M211. 7, 1916.

avwamfoz C. G. MYERS.

LAMP.

APPLICATION FILED NOV. 5. ms.

Reissued Mar. 7, 1916.

29i in Q @0420 UNITED STATES PATENT OFFICE.

CHARLES-G. MYERS. or cnnvnniinn, 0111b.

LAMP.

Specification of Reissued Letters Patent.

Reissued Mar. 7, 1916.

Original N0.'1,077,153, dated October 28, 1913, Serial No; 660,326. Application for reissue filed November 5, 1915: Serial No. 60,660.

To all whom it may concern:

Be it known that 1, CHARLES G. Minus, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Lamps, of which the following is a specification.

My invention relates to improvements in lamps, and more particularly to that class or type which are adapted to concentrate.

and project the rays of light from a suitable source of illumination through the medium of one or more lenses.

4 My invention is particularly designed and adapted for lamps as automobile lamps, theatrical or spot lamps, and the like, the primary object of the invention being to intercept or cut off certain of the direct rays of l1ght from the projected field which would otherwise reach the eyes of the person in such projected field of light, as for example, the chauffeur or occupant of an oncoming automobile, or the performer in the spot light as the case may be.

In carrying out my invention a portion of one lens is provided with an intercepting element (preferably the objective lens where two lenses are employed) whereby certain rays of light are intercepted or cut off from the projected field.

With the ,above mentioned and other ends in. view, the invention consists in the novel construction, arrangement, and combination of parts, hereinafter described, illustrated in some of its embodiments in the accompanying drawings, and particularly pointed out in the appended claims.

Referring to the drawings forming a part of this specification, Figure 1, is a elevation of an automobile lam constructed in accordance with my invention. Fig. 2, a side elevation of the same, a portion of the lamp casing being broken away and the lens tube and lenses being shown in section for the purpose of clearer illustration of the parts. Fig. 3, a detached longitudinal sectional view. showing the application of the shadin or intercepting element to the rear or con ensing lens. Fig. 4, a diagrammatic view of. a further modified form in which two lano-convex lenses are employed, one being provided with a shading or intercepting element. Fig. 5, a diagrammatic view 5 illustrating the refraction and projection of use in connection with such front the rays of light and the manner in which certain rays are intercepted or cut ofi from the eye in the projected field.

fiin lar numerals of reference designate like parts throughout all the figures of the drawings.

In carrying out my invention for the purpose of cutting out or intercepting certain rays of-light from the projected field whereby the eye does not receive the glare or daz zle arising from the direct rays'of light emitted from the source of illumination, I prefer to provide a portion ofa lens with, a suitable shading or intercepting element, of suitable opaque or translucent material adapted to intercept or cut out certain rays of light as shown in Figs. 1, 2, 3, 4 and 5, of the drawings. .Where a condensing-lens 2, and ob ective lens 3, are employed as'shown in the embodiments of my invention illustrated in the accompanying drawings, I prefer to out out or intercept certain rays of light at one side of the objective lens 3, by the addition or introduction ofa suitable shading or intercepting element 1.

The condensinglens 2, and objective lens 3, may be of' any suitable and convenient form, and where employed in connection with an automobile lamp as shown in Figs.

1, 2, and 3, each lensmay comprise two Y plano-convex members with the shading or usual ventilated dome 6, and the lamp body may be supported by means of supporting lugs or sleeves 7 adj ustably secured upon the usual bracket arms in any suitable and con venient manner.-

The lamp body or casing 4, is preferably provided at its front with a door or closure 8, hinged at one side and secured in its closed position by means of a pivoted latch member 9, taking over or interlocking with a lug 10, of the lamp vbody 4; The pivoted door 8, is preferably of concavo-convex shape as shown, and is provided with a lens tube 11,

burner, as shown, the 'casing may beprovided at its top with the adapted to extend rearwardly into the lamp body and to carry a condensing lens 2, and

similar to that illustrated in Fig. 5, ofthe drawings, the projected rays 14, extending forwardly to illuminate'the roadway substantially as shown, while the rays 14", coming from the condensing lens 2, are intercepted or cut oil by the intercepting agent 1, so that these rays which would ordinarily be projected directly into the eye l5, in the upper portion of the field of light are cut ofi', thus relieving the eyes of the chaufleur or occupant of an oncoming automobile from the direct rays of the source of illumination and the glare or dazzle incident to the use of the ordinary form of automobile lamp.

If desired, the interce ting agent 1, may be formed with or carrie by the rear or condensing lens 2, as shown in Fig. 3, but this form does not give such good results and is considered as an inferior modification.

, Fig. 5, of the drawings illustrates also the use of my invention for use in connection with a theatrical or .spot light and the manner in which the rays of light are projected and certain rays cut out of the projected field.

Although certain direct rays are cut out of the upper portion of the projected field of light as illustrated in Fig. 5, of the drawings, said upper vportion of the projected field is not materially darkened or the in tensity of the light materially diminished as compared with the other portions of the projected field.

,From the foregoing description, taken in connection with the accompanying draw ings, the operation and advantagesof my invention will be readily understood.

Having thus.described some of the embodiments of my invention, what I claim and desire to secure by Letters Patent is,

1. In a light concentrator and projector,

a condensing lens, an objective lens, and a light intercepting element at one side of one of said lenses and adapted to cut out iteriziain rays of light from the projected 2. In a light concentrator and projector,

an objective lens having an opaque segmental portion.

, 3. A lamp, comprising a casing, a source of illumination, a condensing lens and a convex lens having a portion adapted to cut out certain rays of light from the projected a condensing lens and an objective lens, and

- said casing and direct rays oflight from said condensing lens;

6. A lamp, comprising a casing, a source of illumination, a lens tube provided with a shading element carried by one of said lenses whereby certain rays of light are cut oiffrom the projected field.

lamp, comprising a casing, a source of illumination, a lens support, a condens- .ing lens, an objective lens, and an opaque segmental portion at the lower edge of the latter.

8. A lamp,-comprising a casing, of illumination,

a source a lens tube extending into provided with a condensing lens, and an objective lens having its lower marginal portion provided with light intercepting means. I v

9. A lamp, comprising a casing providedat its rear with a reflector, a source of illumination, a lens support extending into said casing and provided with a condensing lens. in close proximity to said source of illumination, an objective lens comprising two plane-convex members mounted at the front of said lens support, and an intercepting 1 element between the lower marginal portions of the members of said objective lens. I

10. In a light concentrator and projector, including a source of illumination, and a condensing element, a light intercepting element positioned below the axis of the projector cutting out the projected rays of light from a portion of the projected field.

11. In a light concentrator and projector including a sourceof illumination, and a condensing element, a light intercepting element below the axis of the latter and said source of illumination cutting out the pro- I jected rays of lightfrom the upper portion. of the projected field. I

12. In a light concentrator and projector, including a source of illumination, and a condensing element, a light intercepting element between a portion of the latter and said source of illumination cutting out the projected rays of light from a portion of the ,projected fieldi 13. In a lamp, including a source of illumination, and objective and projecting ele ments onopposite sides thereof, a light intercepting element interposed below the plane of said source of illumination and between the lower sides of said projecting and objective elements and intercepting a portion of the beam of light between the latter thereprojected beam below said light source and by cutting out the projected rays of light the axial planes of said reflector and objecfrom the upper portion of the -projected tive there y preventing projection of rays field. of lightinto the upper portion of the pro- 15 5 14. In a projector, the combination of a jected field.

reflector adapted to project an approxi- In testimony whereof I have afiixed my mately concentrated beam of light, an obsignature in the 'resence of two witnesses. jective, a light source located therebetween EHARLES G. MYERS. in the same axial plane, and a light inter- Witnesses: 10 cepting element interposed between said re- 0. C. BILLMAN,-

fiector and objective and intercepting the LoRENEO. LAW.

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