EXHIBIT 2058
`
`EXHIBIT 2058EXHIBIT 2058
`
`
`
`

`
`From:
`Sent:
`To:
`Subject:
`
`Ying-Moh Liu <yml7245@yahoo.com>
`Saturday, June 27, 2015 6:20 PM
`McCormack, Brian C
`Fw: Lenses for prototype
`
`
`----- Forwarded Message -----
`From: Matt Cowan <mcowan@reald.com>
`To: Ying-Moh Liu <yml7245@yahoo.com>; Lenny Lipton <llipton@reald.com>; Jerry Carollo <JCarollo@creativedis.com>
`Cc: Michael Hoppe <MHoppe@creativedis.com>; Mahir Abrahim <MAbrahim@creativedis.com>; Bill Maffucci
`<BMaffucci@creativedis.com>
`Sent: Thursday, September 28, 2006 3:53 PM
`Subject: RE: Lenses for prototype
`
`Ying-moh:
`
`
`1. We need a system that will work for both situations. What are the implications of different projection distances and
`different angles? The Clarity is approximately 52' throw and 26' screen width. Lenny can probably dig up exact numbers.
`
`
`2. The throw ratios are complicated by using less pixels of the DMD.
`
`
`
`
`
`if the throw ratio is 1.45:1 using 2048 pixels of the DMD, then using 1628 pixels, the ratio of screen width (usable)
`to distance becomes 1.82:1 Our image is narrower that the maximum that the lens can handle, but our object
`(DMD pixels) are also narrower. You are right that the full width DMD angle at 1.45 is 38 degrees - clearly
`beyond our design target. But using only 1628 pixels, the angle becomes 30.6 degrees (slightly over design). In
`the El Cap theatre the lens setting will be slightly narrower than 1.45 (1.47 I think) which brings the angle below
`30 degrees (by a tiny amount.)
`I don't have the Clarity lens at my finger tips, but the labeled focal range should be something like 40.6mm and
`50.4mm - Lenny can you look at your notes on this?
`
`Maybe I'm not being clear - and we should discuss this on the telephone?
`
`
`3. We would like to design for both flat and scope modes. My suggestion would be to design for 30 degrees in Flat mode
`and all situations will be covered.
`
`
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`
`
`some theatres are "common height" meaning that the side curtains go out for scope and come in for flat, keeping
`the same height for flat and scope.
`some theatres are "common width", meaning that the top curtain goes up for flat, keeping the same horizontal
`width for flat and scope.
`
`4. Lenny can you look at the Barco lens and figure out dimensions?
`
`I am hoping that our primary design constraint is the 30 degree horizontal angle and we can accommodate Clarity and El
`Cap (different focus positions and zoom lengths) by putting shims on the mounting platform (of something like that). As I
`see it, we will have several different lens settings we need to accommodate, which will drive the Z location of the
`apparatus (distance from the front of the projector). Flat and scope each for El Cap and Clarity. I hope the different throw
`distances (52' and 71') between the two situations can be tuned by mirror pointing and any difference required in radius of
`the mirror can be dialed in.
`
`If the project just got more complicated, then lets have a discussion tomorrow in case I'm missing something.
`
`
`Matt.
`
`1
`
`REALD INC.
`Exhibit 2058-1
`MASTERIMAGE 3D, et al. v REALD INC.
`IPR2015-00035
`
`

`
`
`
`
`
`From: Ying-Moh Liu [mailto:yml7245@yahoo.com]
`Sent: Thursday, September 28, 2006 6:03 PM
`To: Lenny Lipton; Jerry Carollo; Matt Cowan
`Cc: Michael Hoppe; Mahir Abrahim; Bill Maffucci
`Subject: RE: Lenses for prototype
`
`Lenny and Matt:
`
`I have a few questions related to my optical design setup and would like to get your inputs.
`
`* Would you tell us if we are designing for the Clarity theater or the El Capitan?
`* What size is the Clarity theater screen and what is the throw distance?
`* If we are designing for TR of 1.45-1.8 as Matt suggested, do we keep the throw distance the same
`for both cases?
`* Please check the attached diagram to see if it is what you understand in the lens retract vs TR.
`* For TR of 1.45, I calculated the FOV to be 38 deg. and the focal length to be 32.33mm when
`projecting 1628 pixels wide. f=0.5*1628*0.01368/tan(19)=32.33mm. This focal length is outside of
`your described 50.7-67.8mm. What am I missing? Do you actually project TR of 1.45 in Clarity
`theater?
`* Do we design for the "flat" mode with 1.85:1 aspect ratio?
`*
`
`
`Hope to get your input on the above soon. Thank you.
`
`
`Ying-Moh
`
`Lenny Lipton <llipton@reald.com> wrote:
`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:
`
`
`2
`
`
`
`REALD INC.
`Exhibit 2058-2
`MASTERIMAGE 3D, et al. v REALD INC.
`IPR2015-00035
`
`

`
`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.
`
`
`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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`3
`
`REALD INC.
`Exhibit 2058-3
`MASTERIMAGE 3D, et al. v REALD INC.
`IPR2015-00035