Abstract: A work light comprises an elongate circuit board having a length extending between a connection end and a free end and a width extending between a left side and a right side. A light emitting diode is mounted on the elongate circuit board. An elongate protective cover has a length extending between a mounting end and a free end, and generally surrounds at least most of said elongate circuit board. The protective cover may comprise a suctioning tube having a fluid ingress and a fluid egress. The suctioning tube is connectable at the mounting end to a source of suction.

Abstract: A method of producing an image on a display screen comprises the steps of generating at least one wavelength of light in a selected wavelength band of red light in the wavelength range from about 620 nm to about 655 nm and/or yellow-green light in the wavelength range from about 530 nm to about 580 nm, and directing the generated light to a target object containing an accumulation of a fluorescable biomarker, such that the generated light reaches the fluorescable biomarker and excites the fluorescable biomarker to thereby cause it to emit fluoresced light within a characteristic wavelength band. The fluoresced light from the fluorescable biomarker is captured. A digital data file representative of the captured fluoresced light is created. A representative image is formed on a display screen from the digital data file. An apparatus for generating an image on a display screen using the above method is also disclosed.

Abstract: A liquid-containing heat filter for use with a high-intensity light, said liquid-containing heat filter comprising a substantially hollow reservoir for receiving heat-filtering liquid therein, the reservoir comprising a first optically transparent member, a second optically transparent member, and a peripheral frame for receiving and retaining said first optically transparent member and said second optically transparent member, heat-filtering liquid disposed in said substantially hollow reservoir, and a first resiliently deformable member interposed in trapped relation between the first optically transparent member and a first portion of said peripheral frame, wherein, in use, when the heat-filtering liquid in the reservoir raises in temperature due to the heating effect of the high-intensity light, the first resiliently deformable member is compressed to thereby allow the outward movement of the first optically transparent member due to expansion of the heat-filtering liquid.

Abstract: A liquid-containing heat filter for use with a high-intensity light, said liquid-containing heat filter comprising a substantially hollow reservoir for receiving heat-filtering liquid therein, the reservoir comprising a first optically transparent member, a second optically transparent member, and a peripheral frame for receiving and retaining said first optically transparent member and said second optically transparent member, heat-filtering liquid disposed in said substantially hollow reservoir, and a first resiliently deformable member interposed in trapped relation between the first optically transparent member and a first portion of said peripheral frame, wherein, in use, when the heat-filtering liquid in the reservoir raises in temperature due to the heating effect of the high-intensity light, the first resiliently deformable member is compressed to thereby allow the outward movement of the first optically transparent member due to expansion of the heat-filtering liquid.

Abstract: An apparatus for precluding plant trunks from freezing comprises an electrically powered heating means, for placement adjacent a plant trunk, to thereby warm the plant trunk. An insulating means is provided for surrounding the electrically powered heating means and the plant trunk, to thereby retain heat generated by the electrically powered heating means around the plant trunk.