A high-luminous, self-ballasted lamp having output identical with a 100-W incandescent lamp

Photolytic decomposition of saccharides with a high-output, low-pressure mercury lamp for voltammetric trace analysis.

Inventing-around Edison’s incandescent lamp patent: evidence of patents’ role in stimulating downstream development

Ron D. Katznelson and John Howells ABSTRACT We provide an anatomy of the influence of Edison’s incandescent lamp patent U.S. 223,898 on downstream development and show how subsequent inventor activity adjusts to the improved certainty provided by court decisions as to the boundaries of a patent’s claims. First, we show that court decisions upholding Edison’s patent generated a surge of patent f...

High-intensity vapor lamp for biological research.

A vapor arc light source has been adapted to the study of the lethal action on bacteria of near-ultraviolet (UV) and visible light. Its use makes possible much shorter exposure times than could be obtained from previously available sources. The output of radiant energy is sufficient to provide a fairly detailed action spectrum for lethality in the long-UV and visible region without the addition...

Multi-Lamp High-Power-Factor Electronic Ballast Using a Fixed-Frequency Self-Oscillating Driver

This paper presents a fixed-frequency self-oscillating high-power-factor electronic ballast supplying four independent lamps. The fixed-frequency self-oscillating driver is achieved adding a LC series filter supplying a small resistor. The primary winding of the self-oscillating transformer is the series inductor of the filter. So, if one or more lamps are damaged, the switching frequency will ...

Wood's lamp: a modified method of examination.

To overcome this, a simple modification can be made so that even in illuminated rooms this instrument can That strongyloidiasis should be excluded before initiating immunosuppressive therapy is widely known. In Indian leprosy manuals, strongyloidiasis is mentioned as a contraindication for steroid therapy in patients of leprosy. However, the fact that strongyloidiasis should be treated before i...