`EXHIBIT 2049
`
`
`
`
`
`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: Lenny Lipton <llipton@reald.com>
`To: Jerry Carollo <JCarollo@creativedis.com>; Matt Cowan <mcowan@reald.com>
`Cc: Michael Hoppe <MHoppe@creativedis.com>; Ying-Moh Liu <yml7245@yahoo.com>; Mahir Abrahim
`<MAbrahim@creativedis.com>; Bill Maffucci <BMaffucci@creativedis.com>
`Sent: Monday, September 25, 2006 4:07 PM
`Subject: RE: Lenses for prototype
`
`Jerry
`
`
`That should have been as follows:
`
`
`This is a good question. The lens on the Barco on my floor which has a zoom range of
`40.7 - 50.9 mm moves through a little more than 30 mm. The front element translates
`from recessed to flush.
`
`
`The Clarity theater lens which is 50.7 - 67.8 retracts from flush to more than a 45 mms.
`
`From: Jerry Carollo [mailto:JCarollo@creativedis.com]
`Sent: Monday, September 25, 2006 3:55 PM
`To: Matt Cowan; Lenny Lipton
`Cc: Michael Hoppe; Ying-Moh Liu; Mahir Abrahim; Bill Maffucci
`Subject: RE: Lenses for prototype
`
` Matt:
`
`
`How much does the lens need to move to go from TR 1.45 to 1.8? I think we may have up to 20mm space to
`accommodate the focus change but and the other lens type but we need at the mechanical design to know for
`sure.
`
`
`Thanks
`
`
`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
`
`
`Jerry et al:
`
`
`We will be providing you with two lenses.
`
`
`1
`
`REALD INC.
`Exhibit 2049-1
`MASTERIMAGE 3D, et al. v REALD INC.
`IPR2015-00035
`
`
`
`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.
`***********************************************************************************************
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`If you are not the intended recipient, please contact the sender by reply email
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`
`
`2
`
`REALD INC.
`Exhibit 2049-2
`MASTERIMAGE 3D, et al. v REALD INC.
`IPR2015-00035
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