US1812779A - Antiglare or antidazzle device for lamps - Google Patents

Antiglare or antidazzle device for lamps Download PDF

Info

Publication number
US1812779A
US1812779A US33024829A US1812779A US 1812779 A US1812779 A US 1812779A US 33024829 A US33024829 A US 33024829A US 1812779 A US1812779 A US 1812779A
Authority
US
United States
Prior art keywords
blades
lamp
lamps
antiglare
shewn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Geary Isaac
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1812779A publication Critical patent/US1812779A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • This invention relates to an improved antiglare or anti-dazzle device for use chiefly with the lamps of road vehicles and to devices of the type wherein the light passes through a screen of strip or blade members arranged in front of the lens or the lamp front and the source of light.
  • the blades or screens are arranged around the periphery of the lamp front substantially at right angles thereto and extend from the outer edge thereof to points within the circumference in such a manner that their surfaces lie at 5 various angles to the horizontal plane containing the axis of the lamp, said blades however not extending completely across the source of light, the passage of light rays laterally between the blades being unobstructed.
  • the blades or screens may be arranged along radii thereof and may terminate at their inner ends on the circumference of a circle concentric with the lens or front, but the blades or screens need not be of equal lengths and they may terminate at their inner ends at points which are eccentric to the lens or front.
  • the screens or blades are preferably of thin sheet metal or of a sufliciently opaque material and may be permanently attached to the lamp or may be carried on a narrow detachable rim, ring, or the like which may be clipped or otherwise secured to a convenient part of the lamp.
  • the screens or blades do not interfere with the normal illumination of the lamp as they are so thin that viewed from the front there is no appreciable obscuration of the lens or front of the lamp and light can pass up be tween them freely. If, however, the point of view he changed from a front central view to a side or angular view, then the screens become effective in preventing the glare from reaching the eyes.
  • FIG. 1 is a side elevation partly in section of a lamp fitted with a device according to one form of the invention
  • Fig. 2 is a front elevation thereof.
  • Fig. 3 is a front elevation of a modification.
  • the front rim 1 of the lamp 2 is fitted with a channelled ring 3 attached thereto by suitable clips 4, the ring serving to support aseries of blades or screens 5 in a position at right angles to the vertical plane of the lens or front of the lamp.
  • These blades are shaped as shewn in Fig. 1 and are each formed at their rear ends with a lug 6 which fits into a slot in the ring 3.
  • the blades are arranged along radii and extend over the front of the lamp as shewn in Fig. 1, as shewn in Fig. 3, the blades may be of unequal lengths. If desired, the blades may be further supported at points near their free outer ends by means of a wire or other ring to which they are attached, the ring passing over the outside of the blades or through them, or being arranged at their inner ends.
  • the inner ends of the blades are shewn as terminating at points lying in a circle concentric with the rim of the lens or lamp but they may terminate at other points, as for example at points in a circle which is eccentric. Further the blades are shewn as fitted around the whole circumference of the lens or front, but in some case only a portion of the circumference, the upper half for example, may be fitted with blades. The blades may be permanently secured to the lamp rim if desired and their length may be varied as desired.
  • An anti-glare screen attachment for the outside forward portion of a lamp comprising a series of blades arranged around the entire periphery of the lamp front, and projecting forwardly thereof, and substantially at right angles thereto, said blades having their inner opposite ends equally spaced apart throughout their entire length to provide an unscreened area of uniform circumference therebetween, said blades being radially spaced apart around the entire periphery of the lamp front whereby uniform unobstructed light passages are provided between said blades around the entire periphery of the lamp front to provide alarge area of deffusion in the neighborhood of the lamp.

Description

June 30, 1931. l. GEARY 1,812,779
' ANTIGLARE OR ANTIDAZZLE DEVICE FOR LAMPS Filed Jan. 4, 1929 myz.
Patented June 30, 1931 PATENT OFFICE ISAAC GEARY, OF LONDON ENGLAND AN TIGLARE OR ANTIDAZZLE DEVICE FOR LAMPS Application filed. January 4, 1929, Serial No. 330,248, and in Great Britain January 9, 1928.
This invention relates to an improved antiglare or anti-dazzle device for use chiefly with the lamps of road vehicles and to devices of the type wherein the light passes through a screen of strip or blade members arranged in front of the lens or the lamp front and the source of light.
According to the present invention, in a device of the kind referred to, the blades or screens are arranged around the periphery of the lamp front substantially at right angles thereto and extend from the outer edge thereof to points within the circumference in such a manner that their surfaces lie at 5 various angles to the horizontal plane containing the axis of the lamp, said blades however not extending completely across the source of light, the passage of light rays laterally between the blades being unobstructed.
In the case of lamps having circular lenses or fronts the blades or screens may be arranged along radii thereof and may terminate at their inner ends on the circumference of a circle concentric with the lens or front, but the blades or screens need not be of equal lengths and they may terminate at their inner ends at points which are eccentric to the lens or front. The screens or blades are preferably of thin sheet metal or of a sufliciently opaque material and may be permanently attached to the lamp or may be carried on a narrow detachable rim, ring, or the like which may be clipped or otherwise secured to a convenient part of the lamp.
With the above described arrangement the screens or blades do not interfere with the normal illumination of the lamp as they are so thin that viewed from the front there is no appreciable obscuration of the lens or front of the lamp and light can pass up be tween them freely. If, however, the point of view he changed from a front central view to a side or angular view, then the screens become effective in preventing the glare from reaching the eyes.
To enable the invention to be fully understood it will now be described by reference to the accompanying drawings in which 5 Fig. 1 is a side elevation partly in section of a lamp fitted with a device according to one form of the invention, and
Fig. 2 is a front elevation thereof.
Fig. 3 is a front elevation of a modification.
As shewn, the front rim 1 of the lamp 2 is fitted with a channelled ring 3 attached thereto by suitable clips 4, the ring serving to support aseries of blades or screens 5 in a position at right angles to the vertical plane of the lens or front of the lamp. These blades are shaped as shewn in Fig. 1 and are each formed at their rear ends with a lug 6 which fits into a slot in the ring 3. The blades are arranged along radii and extend over the front of the lamp as shewn in Fig. 1, as shewn in Fig. 3, the blades may be of unequal lengths. If desired, the blades may be further supported at points near their free outer ends by means of a wire or other ring to which they are attached, the ring passing over the outside of the blades or through them, or being arranged at their inner ends.
In the examples shewn the inner ends of the blades are shewn as terminating at points lying in a circle concentric with the rim of the lens or lamp but they may terminate at other points, as for example at points in a circle which is eccentric. Further the blades are shewn as fitted around the whole circumference of the lens or front, but in some case only a portion of the circumference, the upper half for example, may be fitted with blades. The blades may be permanently secured to the lamp rim if desired and their length may be varied as desired.
Any suitable sheet material, metal or otherwise may be used for the blades.
Having thus described the nature of my said invention and the best means I know of carrying the same into practical effect, I claim An anti-glare screen attachment for the outside forward portion of a lamp, comprising a series of blades arranged around the entire periphery of the lamp front, and projecting forwardly thereof, and substantially at right angles thereto, said blades having their inner opposite ends equally spaced apart throughout their entire length to provide an unscreened area of uniform circumference therebetween, said blades being radially spaced apart around the entire periphery of the lamp front whereby uniform unobstructed light passages are provided between said blades around the entire periphery of the lamp front to provide alarge area of deffusion in the neighborhood of the lamp.
In testimony whereof I have signed my name to this specification.
ISAAC GEARY.
US33024829 1928-01-09 1929-01-04 Antiglare or antidazzle device for lamps Expired - Lifetime US1812779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1812779X 1928-01-09

Publications (1)

Publication Number Publication Date
US1812779A true US1812779A (en) 1931-06-30

Family

ID=10891170

Family Applications (1)

Application Number Title Priority Date Filing Date
US33024829 Expired - Lifetime US1812779A (en) 1928-01-09 1929-01-04 Antiglare or antidazzle device for lamps

Country Status (1)

Country Link
US (1) US1812779A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142229A (en) * 1977-05-23 1979-02-27 Hulbert Jr Clarence E Method of shaping a lamp beam
US5800038A (en) * 1996-02-16 1998-09-01 Cobra Engineering Corporation Rim mounted motorcycle headlight visor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142229A (en) * 1977-05-23 1979-02-27 Hulbert Jr Clarence E Method of shaping a lamp beam
US5800038A (en) * 1996-02-16 1998-09-01 Cobra Engineering Corporation Rim mounted motorcycle headlight visor

Similar Documents

Publication Publication Date Title
US2119370A (en) Light control means for headlights and the like
US1812779A (en) Antiglare or antidazzle device for lamps
US1654974A (en) Headlight diffuser
US2074671A (en) Interiorly illuminated sign
US1568900A (en) Eyeshade
US1331422A (en) Glare-shield
US3742206A (en) Kaliedo-light
US1571139A (en) Refractor
US1027621A (en) Light-shield.
US1647150A (en) Headlight
US1199767A (en) Light-ray-diffuser shade for lamps.
US1907356A (en) Antiglare shield
US1928357A (en) Antiglare headlight
US1716604A (en) Nonglaee device
US2020944A (en) Antiglare device
US2151620A (en) Glare shield for headlights
US3219813A (en) Anti-glare device for headlights
US1517661A (en) Glareshield for headlights
US1619720A (en) Antiglare attachment for headlights
US1621085A (en) Headlight
US1924338A (en) X xx- - antid antidazzle device
US2065814A (en) Headlight
US1743793A (en) Headlight
US1637622A (en) Means for relieving the glare from projector lights
US1611647A (en) Antiglare-lens attachment