A glass reflector and bulb assembly that allows heat to dissipate through the reflector and away from the bulb thus increasing bulb life.
A reflector that allows infrared light (heat) to pass through and reflects visible light forward. Commonly found on low-voltage halogen lamps.
A type of coating that when applied to glass can produce a so- called "cold" mirror for use in projector lamphouses that permits greater screen brightness without the risk of radiant energy (heat) problems. Usually, the rear surface of the mirror is treated by depositing very thin layers of a special coating material designed to transmit infrared (IR) radiation effectively and reflect visible radiation. Alternatively, by selecting certain other materials for the deposit, IR radiation can be reflected and visible radiation transmitted, thus providing an efficient heat filter for arc radiation devices.
having the property of naturally emitting light with only a single polarization.
A type of reflector, mirror or filter which reflects and transmits different wavelengths of light selectively, permitting a projector to provide more visible image light with less heating of the slide or film
Of two colors; the characteristic of a transparent substance to divide refracted white light into two distinct rays.
A mirror that reflects or refracts wavelengths of light, which will separate white into its component colors.
A mirror or lens that reflects or refracts selective wavelengths of light. Usually found in projector light engines to separate the lamps white light into red, blue and green.
A mirror or lens that reflects or refracts selective wavelengths of light. Typically used in projector light engines to separate the lamps "white" light into red, green, and blue light.
Dichroic is a mirror or lens in a projector that reflects or refracts wavelengths of light, thus separating the white light into red, green and blue.
The property of a substance to appear in one color by reflected light and in another by transmitted light.
something that is dichroic changes color when different light, such as sunlight or light from a lightbulb, strikes it. [ ] EARLY RENAISSANCE-- The first decades of the Renaissance, which began in Italy about 1400-1450, in which a revival or "rebirth" of learning from Classical Greece and Rome took place in the arts, literature, and sciences.
In reference to thin-film interference coatings, selectively transmitting and/or reflecting light according to its wavelength.
A type of mirror, reflector, or filter that selectively reflects different wavelengths of light, permitting a projector to transmit more visible light with less heating of the film. Dichroic mirrors are also used for internal convergence of three-tube single lens video or computer projectors.
displaying two colors - one by transmitted and one by reflected light.