LP3004+ Projector Lens 1.17–1.47:1 for NEC NP-NC900C NC1503 NC1402 NC1202 NC1000C NC1101 NC1201 and

The LP3004+ is a medium-to-long throw lens for NEC installation projectors, with a throw ratio of 1.17–1.47:1. It is compatible with 9 projector models across 1 model series. This article lays out the lens specifications, installation distances, model compatibility list, and replacement notes all at once.

1. Lens Specifications

2. Converting Throw Ratio to Installation Distance

The throw ratio is the ratio of installation distance to screen width. This lens is zoomable (1.17–1.47:1), so a given screen size corresponds to a range of distances; as long as installation falls within this range, focus can be achieved.

The above figures are the clear distance from the lens face to the screen, excluding rear ventilation and cabling space behind the projector body. Calculated for a 16:10 aspect ratio; actual values are subject to on-site measurement and the instruction manual.

Image quality differs at the two ends of the zoom range: toward the near end the image is brighter with slightly softer edges; toward the far end the edges are sharper with slightly reduced brightness. Where space permits, it is recommended to land in the middle of the range. After installation, first find the sharpest position on the focus ring, then fine-tune the shift—adjusting both variables at once makes it hard to find the sweet spot.

3. Compatible Models (9 Projectors, NEC)

The table below is ordered from newest to oldest by production start date, including each model's resolution, brightness, and original lens zoom ratio, for quick reference by project requirements.

Original Replaceable Lens Models

Among these models, 8 projectors can be fitted with original lenses; the corresponding throw ratios are listed below for comparison with the original solution.

NEC Original Lenses

The model in this article, 1.17–1.47:1, is closest in focal range to the original NP-9LS12ZM1 (1.2-1.72:1) and can be directly compared for selection.

Common Traits of These Models

The original standard lens throw ratios of the 9 models are mostly concentrated at Depends on the lens. The model in this article, 1.17–1.47:1, effectively adjusts the focal range so that the same projection distance can produce a different screen size—this is precisely the direct reason for changing lenses; at the same time, full shift capability is retained, so the image can still be aligned after adjusting the focal range.

4. Three Things to Confirm Before Replacement

• Panel size must be verified. The panel specifications for this model are not yet on record; please send us a photo of the projector's nameplate for confirmation.
• Interface and locking structure. Interface compatibility is good within the same platform generation, but the locking latch positions differ between generations. If the image is skewed or edges are soft after installation, it is most likely that the lock is not fully engaged—not a problem with the lens itself.
• Leave margin for zoom. When measuring distance, add another 10–20 cm beyond the range endpoints; transport and installation tolerances may push it out of range.

For models not on the list, it is safer to send us the nameplate and original lens photos for verification—same-generation platforms often share interfaces, but ordering based on model similarity alone is a risk not worth taking.