EXHIBIT 2048
`EXHIBIT 2048
`
`
`
`

`
`From:
`Sent:
`To:
`Subject:
`
`Ying-Moh Liu <yml7245@yahoo.com>
`Saturday, June 27, 2015 6:13 PM
`McCormack, Brian C
`Fw: Lenses for prototype
`
`
`----- Forwarded Message -----
`From: Mahir Abrahim <MAbrahim@creativedis.com>
`To: Ying-Moh Liu <yml7245@yahoo.com>; Jerry Carollo <JCarollo@creativedis.com>; Michael Hoppe
`<MHoppe@creativedis.com>
`Sent: Monday, September 25, 2006 4:06 PM
`Subject: RE: Lenses for prototype
`
`Ying-Moh,
`
`I agree we should go over the mechanical design, especially in light of the change in lens specs. I can meet anytime
`tomorrow. I also have some questions about what the clear apertures would be necessary to accommodate the changes
`Matt is requesting.
`
`-Mahir
`
`
`
`From: Ying-Moh Liu [mailto:yml7245@yahoo.com]
`Sent: Monday, September 25, 2006 4:02 PM
`To: Jerry Carollo; Michael Hoppe ; Mahir Abrahim
`Subject: RE: Lenses for prototype
`
`
`Mahir:
`
`I am not in sync with your packaging in terms of optical component placement. I suggest that we schedule an
`30min. to 1 hour meeting to go over your design and see what we can accommodate for this focusing
`requirement. I can come later today or noon tomorrow. What's convenient for you?
`
`
`Jerry: Do you think we should have an internal design review on all the details?
`
`
`Ying-Moh
`
`Jerry Carollo <JCarollo@creativedis.com> wrote:
`Mahir:
`
`
`What are your comments to Matt¡¦s email? Do we have room for focus adjust and how much room to
`accommodate a different lens.
`
`
`Jerry
`
`
`From: Matt Cowan [mailto:mcowan@reald.com]
`Sent: Monday, September 25, 2006 11:09 AM
`To: Jerry Carollo ; Michael Hoppe ; Ying-Moh Liu ; Mahir Abrahim ; Lenny Lipton
`Subject: Lenses for prototype
`
`
`1
`
`
`
`REALD INC.
`Exhibit 2048-1
`MASTERIMAGE 3D, et al. v REALD INC.
`IPR2015-00035
`
`

`
`Jerry et al:
`
`
`We will be providing you with two lenses.
`
`
`The primary one we want to work with is 1.45 to 1.8. (I don't have drawings but from memory it is the one with
`the extended hood that needs to be machined off.) The secondary one is the 1.8 to 2.4. The 1.45-1.8 lens is the
`one used essentially all the time in the Clarity theatre.
`
`
`We understand that the intended working cone angle is 30 degrees (full angle) maximum and that this means
`about 1.8:1 actual throw to width ratio. Because we use less than the full width of the DMD, the advertised
`number for the lens represents a wider picture than we actually achieve, so in fact in our operation for flat
`pictures using 1628 of 2048 pixels horizontally, we are at a throw ratio of about 1.5 referencing the full width
`DMD, but equating to 30 degrees full angle.
`
`I hope this is clear - if not perhaps we should have a quick telcon to make sure we are on the same page.
`
`
`One point I was thinking about - Focusing the lens consists of moving it in and out of its mount via a sliding
`mechanism. This will change the actual location in the Z dimension of the end of the lens. Have you allowed for
`adjustment (a one time set-up) in this dimension to accommodate this focus movement? It is probably what is
`also required to accommodate two different lenses.
`
`
`Matt.
`***********************************************************************************************
`This email and any files transmitted with it are confidential and intended solely
`for the use of the individual or entity to whom they are addressed and may
`contain confidential and privileged information. No one else is authorized to
`distribute, forward, print, copy or act upon any information contained in this email.
`If you are not the intended recipient, please contact the sender by reply email
`and destroy all copies of the original message.
`************************************************************************************************
`
`
`
`
`Do you Yahoo!?
`Get on board. You're invited to try the new Yahoo! Mail.
`
`
`2
`
`REALD INC.
`Exhibit 2048-2
`MASTERIMAGE 3D, et al. v REALD INC.
`IPR2015-00035