Customized Optical Window Lid Design

We Customize Optical Properties to Fit Your Needs

Kyocera optimizes substrate material selection and optical lid design to solve your most demanding optoelectronic challenges.

Optical Properties

Kyocera can propose optical window lid designs for your operating frequency requirements.

Window Material Options

Kyocera offers a wide range of materials to meet diverse customer needs.

• Borosilicate glass
• Alkali-free glass
• Quartz glass
• Sapphire
• Synthetic quartz
• Silicon (optical grade)
• Germanium (optical grade)

Examples of Customized Optical Properties

Example 1: Matching Coefficients of Thermal Expansion (CTE)

Matching the CTE between the package and the window lid is essential.
⇒Borosilicate glass, which has a CTE close to that of alumina ceramic, is selected with added bandpass filter coatings for the two examples shown below.

Example 2: Reduced-Shift IR Cut Coatings

When the incident angle changes, a shift in optical characteristics (waveform) occurs, and the color of light entering the image sensor changes.
⇒Kyocera can offer IR cut coatings that minimize waveform shift.

Conventional IR Cut Coat

Kyocera's Reduced-Shift IR Cut Coat

Example 3: Window Lid with Light-Shielding Film (Application: Automotive Cameras)

■ Uses sealing resins as a light-shielding film
A light-shielding film blocks unnecessary light.
■ Different from other light-shielding concepts
The solution eliminates a conventional metal light-shielding plate, allowing for a lower-profile, thinner module and no plate-attachment process.

Height Reduction: Creating a Low-Profile Package