Hemispherical Lenses
Half-Ball (hemispherical) lenses have a good performance on microscopy, endoscopy, fiber communication, optical pick-up devices, and laser measurement systems, LED industry, especially for high power and UV LED.
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High-transparency soda-lime glass, all surfaces polished, window for sealing
The product is a high-transparency soda-lime glass sealing window manufactured from optical-grade soda-lime glass. All surfaces undergo precision polishing to deliver superior optical transmittance and exceptional surface finish. The window features a stepped dual-circle configuration, comprising a larger circle measuring 30–50mm in diameter with a thickness of 5–10mm, and a smaller concentric circle measuring 25–40mm in diameter with a thickness of 5–10mm. Both large circular surfaces are polished to a 60/40 scratch-dig surface quality per MIL-PRF-13830B. The parallelism between the two bottom surfaces is maintained within 0.05mm, with a completely scratch-free finish. Edges are chamfered at 0.1–0.2mm × 45° to minimize stress concentration. The stepped geometry enables reliable sealed integration into equipment housings or vacuum/pressure chambers, functioning simultaneously as an optical viewport and a sealing interface.
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Hot Mirrors
Hot mirrors are heat-reflecting mirrors that are designed to work as a shortpass edge filter by transmitting visible wavelengths @AOI 0°, while reflecting NIR, heat-generating wavelengths.
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Infrared (IR) Longpass Filters
In infrared optical systems, filters play a critical role in precisely controlling the passage of light at specific wavelengths to optimize imaging quality or signal detection. An infrared Longpass filter is an optical element that allows the transmission of long-wave infrared light (usually light with a wavelength greater than a certain cutoff value, such as 5μm, 8μm, or 10μm) while blocking short-wave radiation. These filters are widely used in thermal imaging, gas detection, military reconnaissance, industrial monitoring and scientific research.
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IR Cut Filters
Shortpass Filters, also known as Shortpass Edge Filters, are used to transmit wavelengths shorter than the cut-off wavelength of the filter.
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IR Cut Filters
An infrared cut-off filter (IR Cut Filter) is an optical element that is mainly used to block infrared light (wavelength usually greater than 700nm) and allow visible light (about 400-700nm) to pass through. It is widely used in modern imaging systems, especially in digital cameras, smartphone cameras, security surveillance and other areas of critical importance.
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IR Glass Lens
Calcium Fluoride has good performance at optical and thermo-mechanical properties, it can be used for optical windows, spherical lens, prisms and cylinders within a wide range from 130nm to 9μm.
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