Illumination – Work-table lighting system
Reexamination Certificate
2000-01-24
2001-11-27
Husar, Stephen (Department: 2875)
Illumination
Work-table lighting system
C362S234000, C362S098000, C362S253000, C359S802000
Reexamination Certificate
active
06322226
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention pertains generally to lighting equipment and more particularly to a portable combination magnifying lens and lamp.
2. Description of the Background Art
There arc numerous known varieties of lighting or illumination equipment available today. Such known illumination equipment typically uses incandescent or fluorescent bulbs as its lighting means. Incandescent bulbs has the advantage of a reasonable light output, but its drawbacks are the relatively high power consumption and heat generation. Flourescent bulbs do not require as much power or generate as much heat as incandescent bulbs, however, flourescent bulbs are significantly larger than comparable incandescent bulbs that generate similar lighting output. Nonetheless, these lighting schemes almost universally require 110V AC household electrical current to operate, and hence, require a power cord that effectively limits the range of the lamp's portability. Therefore, true portability mandates that the illuminating apparatus be cordless.
Cordless illumination devices are also commonly known and available, however, since such devices cannot always run on 110V household AC current, their lighting output is limited. These illumination devices typically operate on a voltage of approximately 3V to 12V battery power and a single component (usually incandescent bulb) illuminating source with an unequally dispersed and limited lighting output. Such cordless illumination devices are generally in the form of hand-held lighting devices that do not have self-standing capability and are typically designed to function as an inspection aid rather than a workpiece-viewing enlargement apparatus.
Illumination devices that incorporate magnification capability are also known. However, the lighting schemes used in such combination illumination devices also suffer from the aforementioned constraints of high power consumption, heat Generation, and the lack of true portability, whereby gaining an advantage in one aspect results in a drawback in others. The best known illumination device having magnification capability is the “magnifier lamp” that is attached to a piece of furniture or structure. Such lamps operate on 110V AC and therefore are not portable.
Accordingly, there exists a need for a self-standing, portable illumination apparatus that incorporates a magnification means coupled to the illumination source that produces a uniformly illuminated area on the workpiece, without a correspondingly high power requirement, whereby the magnification means and illumination source is directionally adjustable as an integral unit. The present invention satisfies this need, as well as others, and generally overcomes the deficiencies found in existing art.
BRIEF SUMMARY OF THE INVENTION
The present invention pertains to an illumination apparatus that has a magnification means in combination with LED's (Light Emitting Diodes). The LED's are arranged in an array on a mounting ring that is placed inside a lens hood that surrounds the magnification means. The LED's are mounted at an angle on the mounting to provide optimum lighting dispersion onto the focal point of the magnification means.
The lens hood is fixed to an adjustable arm that is attached to a base, The adjustable arm allows the magnification means and LED's to be directed at virtually any angle onto a workpiece. The base allows the apparatus to be self-standing and is adapted to receive a portable power source for powering the LED's.
An object of the invention is to provide a self-standing illumination apparatus having directional adjustability and magnification capability.
Another object of the invention is to provide an illumination apparatus wherein the illumination source is automatically directed onto a focal point of its magnification means.
Still another object of the invention is to provide an illumination apparatus that utilizes a relatively low power consumption.
Still another object of the invention is to provide an illumination apparatus that is portable.
Still another object of the invention is to provide an illumination apparatus that has a reduced heat output from its illumination source.
Further objects and advantages of the invention will be brought out in the following portions of the specification, wherein the detailed description is for the purpose of fully disclosing preferred embodiments of the invention without placing limitations thereon.
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patent: 5625498 (1997-04-01), Wu et al.
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patent: 416638 (1934-09-01), None
Chan Law Group LC
Husar Stephen
Ton Anabel
LandOfFree
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