Mitsubishi Electronics specifications New Auto-Iris HC7000 Previous Auto-Iris HC5000

(at low mode)

Experiencing is Believing The ultimate in black color reproduction.

Newly Developed Diamond Black Iris with 1/60-second Iris Control

New Optics Compensation Panel Realizes Precise Light Focusing and an Amazing Level of High-contrast Images

Evolutionary advancements in the HC7000 include the adoption of Mitsubishi’s original Diamond Black Iris technology. The iris section takes on a “diamond-cut” shape that prevents light refraction and realizes an enhanced level of contrast. True blacks are clearly depicted even during sequences of continual bright-dark scene intervals, ensuring the reproduction of every detail with vivid clarity. Combined together with Mitsubishi’s innovative contrast control, a perfect balance between blacks, the brightest whites and the full color spectrum in between is achieved.

New Auto-Iris (HC7000)

Previous Auto-Iris (HC5000)

Extra-low Dispersion Glass Lens for Superior High-definition Resolution

Superior image reproduction is provided using a 17-piece/14 cluster optical system equipped with extra-low dispersion (ED) lenses.

Far exceeding the performance of conventional glass lenses, chromatic aberration is virtually eliminated and resolution across the entire screen, including the peripheral edges, is improved. Equipped with a fixed aperture, reproduction of every shade, from grays to the deepest of blacks, is ensured.

w/o aperture w/ aperture

Extra-low Dispersion (ED) glass lens

Conventional projectors commonly have problems related to loss of light intensity; not so with the HC7000. Degraded polarization results from the offset position of the liquid crystal elements. An optical compensation panel has been newly developed and installed between the liquid crystal panel and polarization filter. This panel corrects the optical projection angle and prevents light leakage, thereby preserving the intensity and realizing new heights in the level of contrast. Together with our high-speed Diamond Black Iris, a high contrast of 72000:1 is achieved for the HC7000.

Conventional optical system

Linear polarization Elliptical polarization Light leakage

Polarization filter Liquid crystal panel Polarization filter Lens Screen

New optical compensation panel

Linear polarization Linear polarization

Reproduction of

jet-black

Polarization filter Liquid crystal panel + Polarization filter	Lens	Screen
polarization filter

Innovative Liquid crystal Panel Cooling System Design

Realizes Industry-leading Quiet Operation - 17dBA

A new cooling system is introduced for the liquid crystal panel. It includes a new cooling duct design for the new chassis, a smaller fan motor and a large (low-noise) sirocco fan. As a result, a larger air-intake area is secured and the fan operates at a slower speed, providing improved cooling efficiency owing to the hermetic performance of the new chassis. The end result is industry-leading quiet operation of 17dBA (at low mode). Mitsubishi always aims to produce the quietest projectors in the market.

*as of July 2008, for projectors under 7.5kg (in-house study)

		Conventional cooling structure			New cooling structure
		Output polarizing	Liquid crystal panel
		plate group		Incident
				polarizing
				plate group
				Optical path			Optical path
	HC7000 sirocco fan
						Vertical
						airflow
		Cooling			Cooling		Cooling
		fan			fan		fan
Cooling structure adopted to	Conventional sirocco fan
realize silent operation