Silver Jubilee Journey of LEOS
The Laboratory for Electro-Optics Systems (LEOS), Bengaluru is one of the premier units of Indian Space Research Organisation (ISRO) under Department of Space (DOS). Since its constitution dated back to 1992 in Bangalore’s industrial hub located at Peenya, LEOS has been associated with the design, development and production of precise attitude sensors for all LEO, GEO and interplanetary missions along with the development and delivery of high-resolution optical systems for remote sensing and meteorological payloads. The humble journey that has began 25 years back in industrial sheds of Peenya has evolved into a well-established laboratory that is equipped with world-class fabrication, testing and coating facilities. During this period (1992-2017), LEOS has primarily evolved in to three major areas, namely, Sensor Development Area (SDA), Applied Optics Area (AOA) and Sensor Production Area (SPA) catering to increasing demands and needs of ISRO programmes.
The product portfolio of SDA encompasses host of sun sensors from coarse to high accuracy, earth sensors, advanced star-trackers with arc-second accuracies, magnetometers, fiber optic gyro and guidance sensors.
AOA produces variety of world-class optics relating to large field-of-view medium resolution refractive optical systems and moderate field-of-view high-resolution reflective optical systems, which have been successfully developed and delivered to Indian Remote Sensing Satellites missions. LEOS has mastered thin film technology required for enhancing reflectance and transmittance of mirrors and lenses from Ultra-Violet (UV) to Far Infra Red (FIR) wavelength regions. LEOS is in the forefront of developing advanced detector technologies required for realisation of attitude sensors and does comprise the state-of-the-art facilities for fabrication of Micro-Electro-Mechanical Systems (MEMS) based sensors and devices such as inertial grade accelerometers, RF switch, micro valve and micro heat pipes are established.
The SPA is carved exclusively with focus on efficient production and capacity building of electro-optical sensors and optical systems using external/industrial manpower towards meeting large number of sensors for various ISRO spacecrafts.
A new building, named, ‘Aryabhatta’ has established and been dedicated exclusively for production with state-of-the-art test facilities. In addition to the defined core responsibilities, LEOS is further embarking on development of advanced sensors and technologies in electro-optics field demanded by future space missions like sub-arc-second star-tracker, nano star-trackers, miniaturisation of sensors using ASIC, optical communication terminals for high speed data transmission, high accuracy and precision magnetometer based on atomic system, advanced fiber optic sensors, high energy lasers, laser altimeter and LIBS/Raman spectrometer for planetary surface explorations, high precision rendezvous and proximity sensors for docking experiment, segmented optics, SiC based mirrors, diffractive optics based lens assemblies, MEMS gyroscope, MEMS atomic clock physics package, antenna coupled µ-bolometer terra-hertz detector, SiC UV detector and super block absorber coatings using carbon nano-tubes.
LEOS celebrated Silver Jubilee on December 18, 2017 in its campus premises at Peenya, Bengaluru which was attended by Chairman, ISRO/Secretary, DOS, Founder director of LEOS and all the former Directors of LEOS along with Senior Dignitaries of ISRO and all the serving LEOSians.
Chairman, ISRO acknowledged the importance of the services provided by LEOS in ISRO programmes, appreciated the laurels it has brought to space and socio-economic applications. He emphasized the need for innovations and to be the leader in this segment of technology. Former directors and senior officials shared their reminiscences from the curtains of the past and reiterated the importance of growing further in tune to the need of the hour. All former LEOSians who retired from the service since 1992, were felicitated by Chairman, ISRO and Director, ISAC and were honored by presenting a glass trophy symbolizing LEOS core responsibilities as a token of gratitude. A Compendium of Research Activities in LEOS was released by Chairman ISRO, during this occasion.
LEOS had a remarkable journey resulting in world class electro-optical systems developments celebrated its ‘Silver Jubilee’, during this week.
Chairman ISRO addressing during SJC
Honouring Dr. T.K. Alex, Founder Director of LEOS
LEOS at Peenya sheds 1992
LEOS Main building 2017