The Boeing Company

Gregory Alexander Campbell

Douglas Ralph Jungwirth

Emilio Quezada

James H Ermer

Russell K Jones

Robert Douglas Moss

A spectral instrument including a light source configured to produce a light beam, the light beam comprising a plurality of wavelengths, and the light beam being about collimated or pseudo-collimated. The spectral instrument also includes a spectral dispersion device in optical communication with the light source. The spectral instrument also includes a screen disposed in the optical path after the spectral dispersion device. The screen comprises a material configured to be substantially opaque to at least some of the plurality of wavelengths. The screen is sized and dimensioned to at least partially block selected ones of the plurality of wavelengths. The screen is movable with respect to an axis of the screen. The spectral instrument also includes an imaging lens disposed in the optical path and disposed either after the screen or before the screen.

Spectral balancing technique

A solar cell testing apparatus may include an illuminator for directing light energy on a solar cell under test. The solar cell testing apparatus may also include a device for selectively positioning different filters of a multiplicity of filters in an optical path between the illuminator and the solar cell under test to at least one of measure performance and detect any defects in the solar cell. The multiplicity of filters may include a first set of filters and a second set of filters. Each filter of the first set of filters is adapted for passing a predetermined percentage of intensity of the light energy from the illuminator onto the solar cell under test. The second set of filters being adapted for testing the solar cell under different spectrums of light.

Solar cell testing apparatus and method

Systems and methods for identifying a location illuminated by an onboard searchlight on a vehicle are presented. A location of interest is illuminated at an illuminated location illuminated by the onboard searchlight, and a vehicle position of the vehicle and the onboard searchlight is determined. A vehicle orientation of the vehicle is determined based on a pitch, roll, and yaw of the vehicle, and an azimuth and an elevation of the onboard searchlight light is recorded to provide a recorded azimuth and elevation data. A pointing coordinate for the onboard searchlight illuminating the illuminated location is computed based on the vehicle orientation, the vehicle position, and the recorded azimuth and the elevation data, and the illuminated location is calculated based on the pointing coordinate.

Searchlight location system

An illumination device includes a light source that emits an electromagnetic radiation input beam, a dichroic first mirror that reflects a first output beam and transmits a second output beam, a second mirror positioned to reflect the second output beam, and an absorber for absorbing radiation emitted by the light source. An adjustable support for the dichroic and second mirror is also provided and is adjustable between a first position where the first beam is transmitted and a second position where the second beam is transmitted, with the other beam being directed to the absorber.

Dual wavelength focusable and steerable searchlight

System and method for testing solar cells is provided. The system includes a first light source configured to generate a first optical beam; a second light source configured to generate a second optical beam; a reflector for each light source, configured to collimate and direct each of the first optical beam and the second optical beam; a spectral filter assembly associated with each of the first light source and the second light source, the spectral filter assembly configured to (a) receive the first optical beam and the second optical beam (b) split each of the first optical beam and the second optical beam into 'N' smaller optical beams, and (c) filter the 'N' smaller optical beams; a re-imaging assembly for each spectral filter assembly configured to re-image the smaller &#x201c;N&#x201d; optical beam at a dichroic mirror that receives one or more N beams.

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Granada Hills, CA, United States of America

Gregory Alexander Campbell