WA107 0.75:1 Projector Lens for 1 ColorLight Model (e.g., WU20)

WA107 is a short-throw lens for 0.96-inch panels (full-color displays), with a 0.75:1 throw ratio and lens shift. It is compatible with 1 projector model in 1 model series. This article presents the lens specifications, installation distance, model compatibility list, and replacement considerations in one place.

1. Lens Specifications

The lens shift capability is the key differentiator of this lens. A shift range of 21.00% horizontally and 8.20% vertically allows the projector to be installed off the screen centerline, with lens shift bringing the image back into alignment without requiring keystone correction. Keystone correction comes at a cost—each adjustment loses some actual pixels and causes text edges to blur. In professional installations, never use keystone correction when lens shift can resolve the alignment, as this is the minimum standard for image quality.

2. Calculating Installation Distance from Throw Ratio

The throw ratio is the ratio of the installation distance to the image width. This is a fixed-focal-length lens (0.75:1), so its installation distance varies linearly with image size, leaving no adjustment margin. Accurate measurements must be taken before installation.

These figures represent the clear distance from the front of the lens to the screen and do not include space behind the chassis for ventilation and cabling. They are calculated based on a 16:10 aspect ratio; actual measurements and the manual take precedence.

3. Compatible Models (1 Model, Full-Color Display)

The table below is sorted by model production date, from newest to oldest, and includes each model's resolution, brightness, and zoom ratio for the original lens, enabling quick identification according to project requirements.

The zoom ratio refers to the zoom factor of the original standard lens supplied with the model (upper ÷ lower limits of the original throw-ratio range), not the zoom range of the lens described in this article.

Factory Lens Models

Among this model group, 1 model supports factory lenses. The corresponding throw ratio for each lens model is listed below as a reference for factory solutions.

Full-Color Display Factory Lenses

The 0.75:1 model featured in this article is closest to the focal-length range of the factory A11 (0.65~0.75) lens, allowing direct comparison when selecting an option.

Common Characteristics of This Model Group

The standard lens supplied with this model typically has a throw ratio in the 1.5-2.0:1 range. The 0.75:1 model featured in this article represents a focal-length adjustment, allowing a different image size at the same projection distance—this is the practical reason for replacing the lens. It also retains the full lens-shift capability, so the image can still be aligned after adjusting the focal length.

4. Three Checks Before Replacement

• The panel and resolution must match. This model is compatible with 0.96-inch panels. Projectors with different panel sizes or resolutions may show differences in projection performance, so checking the chassis nameplate before installation is the safest approach.
• Interfaces and locking mechanism. Interfaces are generally compatible within the same platform generation, but locking latch positions vary between generations. If the image appears skewed or the edges look soft after installation, the lock is usually not fully engaged rather than the lens itself being faulty.
• Allow for lens shift margin in the installation. The shift range provides some installation flexibility, but edge image quality degrades when pushed to the limits. For actual use, keep operation within 70% of the specified values.

For reliable confirmation of whether models outside the list are compatible, send us the chassis nameplate and a photo of the original lens. Same-generation platforms often share the same interface, but the risks of placing an order based solely on a similar model number are not worth taking.