Introduction to single-lens dual-sensor spectroscopic zoom lens

I. Basic characteristics

A zoom lens and a dichroic prism can capture visible light and short-wave infrared images at the same time, achieving dual-spectrum simultaneous imaging.

The traditional solution uses three independent optical systems: visible light, short-wave infrared, and thermal infrared, which are bulky and heavy. This technology combines visible light and short-wave infrared into one, and can achieve dual-spectrum simultaneous imaging using only one zoom lens + beam splitting prism.

II. Advantages of detection distance

The measured detection range of SWIR exceeds 100 kilometers under sea level conditions.

Comparison: The detection range of similar American Thor products in the air is about 60 kilometers, and that of Israeli products is 26 kilometers.

Penglai deployment, observation 108 km Dalian Laotieshan target effect (visibility 20km)

Test starting position / 108 Kilometer target effect

III. Lightweight advantages

Compared with traditional single-function or dual-function solutions:

IV. Scientific foundation and technical core

1. Spectral Continuity – Physical Prerequisites

From visible light to short-wave infrared (400~1700nm), wide-spectrum optical glass always maintains high transmittance. This continuity in transmission is the physical basis for a single lens to carry such a wide band.

2. Common optical path imaging - feasible logic

The material is continuously transmitted, making it possible for multiple bands to share the same lens. The sensor itself only responds to a specific narrow band and needs to be received independently by band. The combination of the two allows multiple sensors with different spectral bands to share the same optical system, which is a completely reasonable pursuit in terms of optical design.

3. Chromatic aberration correction – turning possibilities into reality

The shared optical path solves the structural problem. The real technical barrier is: how to accurately focus the light of all wavelengths in the 400~1700nm range on the same image plane?

The answer is: use special optical materials and pair glasses with opposite dispersion characteristics to compensate for each other and smooth out the focus deviation across the entire wavelength band. It is this kind of collaboration at the material level that makes "common aperture" a structural possibility and truly implements it into an "imaging confocal" engineering solution.

One difficulty with zoom lenses is eliminating chromatic aberration over a wide spectrum. Comparing with the industry benchmark Fujinon of Japan (chromatic aberration correction range 430–660 nm), this lens achieves chromatic aberration correction of 400–1700 nm, with a significantly wider coverage range. This is the basis for product leadership.

V. Imaging resolution

Visible light: The entire screen reaches 1200 million-pixel resolution, which is 5 times that of competing products in the industry.

Short-wave infrared: The full screen reaches 500 million-pixel resolution, which is 5 times that of competing products in the industry.

VI. Main specifications and parameters

VII. Schematic diagram of the overall machine appearance and dimensions

Dimensional diagram/Appearance diagram

VIII. Actual measurement results-visible light/short-wave infrared simultaneous imaging