http://www.avsforum.com/forum/286-l...ounces-dolby-cinema-hdr-projection-atmos.html
Αλλα κόλπα...
Οι κινηματογράφοι, για να μην χάσουν τελείως το παιχνίδι, "ανεβάζουν ταχύτητα" με Laser HDR προβολεις! Δείτε την ανακοίνωση της Dolby:
Dolby is working with Christie to implement Dolby Vision high dynamic range (HDR) and wide color gamut (WCG) for commercial projection. There are few specifics about how this will be accomplished; when I contacted Christie to get more details, the reply was, "The IP [intellectual property] is confidential and we really can't talk about it until sufficient patent protection is in place. However, we can say that you need laser illumination to build an HDR projector suitable for a cinema-sized screen, because we need extra light that we can 'throw away' or trade off for improved dynamic range and contrast performance. Currently, we don't actually know the limits of what can be achieved for contrast ratio, but we can tell you it is orders of magnitude beyond what a conventional D-Cinema projector can achieve." One of the press releases associated with Dolby Cinema reveals that the system will use two projection heads with a highly customized light path—perhaps one for low luminance and the other for high luminance, but that's only a guess.
We also know that the projectors will exhibit 4K resolution and high frame-rate (HFR) capability. In addition, they will utilize a 6P (6-primary) laser light source, in which the wavelengths of two groups of red, green, and blue are slightly offset from each other. This allows the use of Dolby 3D "color-separation" glasses to isolate the left and right images without requiring a polarization-preserving silver screen, and it provides an extra-bright 2D image. According to Don Shaw, Senior Director of Product Management at Christie "We'll be delivering audiences a richer, more detailed viewing experience with up to 14 foot-lamberts onscreen in 3D and up to 31 foot-lamberts for 2D Dolby Vision content, far exceeding any 'ultra-bright' industry standards, to all Dolby Cinema locations."
Αλλα κόλπα...
Οι κινηματογράφοι, για να μην χάσουν τελείως το παιχνίδι, "ανεβάζουν ταχύτητα" με Laser HDR προβολεις! Δείτε την ανακοίνωση της Dolby:
Dolby is working with Christie to implement Dolby Vision high dynamic range (HDR) and wide color gamut (WCG) for commercial projection. There are few specifics about how this will be accomplished; when I contacted Christie to get more details, the reply was, "The IP [intellectual property] is confidential and we really can't talk about it until sufficient patent protection is in place. However, we can say that you need laser illumination to build an HDR projector suitable for a cinema-sized screen, because we need extra light that we can 'throw away' or trade off for improved dynamic range and contrast performance. Currently, we don't actually know the limits of what can be achieved for contrast ratio, but we can tell you it is orders of magnitude beyond what a conventional D-Cinema projector can achieve." One of the press releases associated with Dolby Cinema reveals that the system will use two projection heads with a highly customized light path—perhaps one for low luminance and the other for high luminance, but that's only a guess.
We also know that the projectors will exhibit 4K resolution and high frame-rate (HFR) capability. In addition, they will utilize a 6P (6-primary) laser light source, in which the wavelengths of two groups of red, green, and blue are slightly offset from each other. This allows the use of Dolby 3D "color-separation" glasses to isolate the left and right images without requiring a polarization-preserving silver screen, and it provides an extra-bright 2D image. According to Don Shaw, Senior Director of Product Management at Christie "We'll be delivering audiences a richer, more detailed viewing experience with up to 14 foot-lamberts onscreen in 3D and up to 31 foot-lamberts for 2D Dolby Vision content, far exceeding any 'ultra-bright' industry standards, to all Dolby Cinema locations."