Ceramic Packages

Optical Filters and Optical Windows

Kyocera manufactures and supplies optical filters for visible light image sensors and infrared (IR) sensors, and optical windows for industrial machinery such as vacuum equipment and mining machinery. Quality and expanded application of optical filters and optical windows are supported by Kyocera's wealth of options in substrate materials, material processing technologies, optical thin film design and processing technologies, bonding technologies such as metallization, brazing materials, low-melting-point glass, and resins.

  • Transmittance data of optical filters below are measured or simulated by Kyocera.

Visible Light + Near Infrared (Dual Wavelength) Bandpass Filters

Application: Night Vision Equipment, License Plate Recognition Cameras, Security Cameras, etc.

Visible Light and 940nm Dual Bandpass Filter
Substrate: Borosilicate Glass (0.30mmt)

Low Shift IR Cut Filters

Application: Thin Smartphones

Feature: Wavelength shift caused by wider incident angle is reduced so that shading issues are prevented.

Conventional IR Cut Filter (T=50% @ 650nm)
Substrate: Borosilicate Glass (0.30mmt)

Low Shift IR Cut Filter (T=50% @ 650nm)
Substrate: Borosilicate Glass (0.11mmt)

Diverse Range of Optical Filters (Examples)

Optical filters required by customers are realized through a wealth of options in substrate materials and optical thin film design technologies.

Blue Glass IR Cut Filter
Substrate: Blue Glass (0.30mmt)

400 to 900nm Wideband Filter
Substrate: Borosilicate Glass (0.30mmt)

5 to 12μm Long Wave Pass Filter
Substrate: CZ-silicon (0.50mmt)

Visible Light and 850nm Dual Bandpass Filter
Substrate: Borosilicate Glass (0.30mmt)

870nm Bandpass Filter
Substrate: Borosilicate Glass (0.30mmt)

810nm Bandpass Filter
Substrate: Borosilicate Glass (0.30mmt)

Substrate Materials

Kyocera has a wealth of options in substrates to meet a variety of customer requirements.

  • Borosilicate Glass (BDA®, D 263® T eco, BOROFLOAT® etc.)
  • Blue Glass
  • Quartz Glass
  • Quartz Crystal
  • Sapphire
  • CZ Silicon (Optical Grade)
  • Germanium (Optical Grade)
  • BDA is a registered trademark of Nippon Electric Glass, Co., Ltd. in Japan.
  • D 263 and BOROFLOAT are registered trademarks of SCHOTT AG in USA and other countries.

Original Bonding Technologies to Meet a Variety of Customer Sealing Methods

Glass window bonded on a ceramic frame which is bonded on a FeNiCo alloy frame for seam welding.

Glass window metallized for Au-Sn solder sealing.

Glass windows coated with thermosetting resin or low-melting-point glass for low temperature sealing in an oven.

Silicon window metallized for Au-Sn solder sealing.

Germanium windows bonded on FeNiCo alloy frames for seam welding.

Sapphire window bonded on a FeNiCo alloy cap for resistance welding.

Top of page