Hoya

Hoya

When setting up Hoya digital, you can download certain information first to make the process smoother.

1.Download all the pucks for the designs you will be doing.  For the LifeStyle designs, these are the IDPK and IDPKCD blanks, in Poly, CR39, Trivex and 167, for example:

2) Download the HOYA VCA lens table by going to "Devices", "VCA Label Table Settings", select the "Import" button from the top, and choose "HOYA" from the list of available tables:

3) Import base curve charts "ID" and "AY" for all materials.

4) Set up the lens style(s) needed, per the instructions that follow.

Designs (LNAM codes)

LMATID Codes

(These codes are set up in table HOYA, you can download this table by importing this table using "Import From Web" in the VCA label tables).

Setting up Hoya designs

LifeStyle

The Hoya LifeStyle designs use a dual-add puck (a blank with adds along the two meridians).  The designs must be set up to indicate that dual-add pucks are needed for this design:

There are two different codes needed for each Lifestyle digital design, because some materials use different rules for the selection of vertical add.  We use the "Near vision" degression chart for selection of vertical add.

For Polycarbonate and 167, blanks comes only in 3.00 vertical add, so degression rules are used to always select degression 3.00:

For CR39 and Trivex, the pucks come in degressions of 2.00 and 3.00, so the degression rules are set up differently:

The ID and IDCR pucks use base curve chart "ID" to select the "best" best curve for the job.  This is combined with the vertical add and horizontal add to select the proper puck.

The pucks themselves (called IDPK and IDCDPK) are set up as lens styles which have multi-adds; the vertical add (VADD in Hoya parlance) is stored in the "Add" field, and the horizontal add (HADD) is stored in the upper add field on the inventory records.

The lens style is set up as follows:

The inventory catalog entries for these blanks look as follows:

When selecting blanks for multi-add designs, the vertical add is determined based on the Rx add power, similar to how a near-vision lens is set up.  The horizontal add is determined from a formula provided by Hoya.

To select the pucks needed for the Lifestyle designs, an alias record from the design to the puck must be set up.  In this example, designs ID and IDCR are set up to select IDPK:

Array Designs

The Hoya Array designs are backside progressives, that use any SV puck.  While care must be taken to ensure the pucks chosen match the index of refraction supported by Hoya, there are no other specific requirements for the blanks.

Array designs must be set up to use a base curve chart (chart AY is pre-created for convenience).  Designs have limited decentration, so should be set up similar to the following:

Amplitude and Summit designs

The Amplitude iQ and Summit designs use Amplitude and Summit semi-finished blanks as pucks, and have an optimized back surface design.  The same base curve charts that are used for the semi-finished blanks can be used for these optimized designs.

The alias should be set up to point to the semi-finished blanks:

Setting Up The Hoya Digital Type

The Hoya digital interface is set up much the same as other digital vendors, specifying the local folders for the LDS, LMS and SDF files. The device parameters screen should be set up to use label table ID "HOYA" to properly translate the LMATID codes required by Hoya.

The Hoya calculator also requires _CTO=1 to be sent in the LDS file in order to obtain thickness results back.  Set this up in the same screen, under VCA Over-rides, as follows: