An alignment and focusing aid to assure that a detector array receives a properly focused image from a predetermined desired area of a remote object by providing an elongated radiation source located at an optical position indicative of the location of the detector array using a partly reflective mirror in the path between the object and the array to project radiation from the source to the object so that the proper focus condition and the desired area may be adjusted by focusing and positioning the image of the radiation source on the object.
Dennis J. Wilwerding - Littleton CO Norman L. Stauffer - Englewood CO
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
G01N 2186 G01B 1114
US Classification:
250561
Abstract:
An optical gauging system which includes an aperture positioned on an axis between two lenses at a distance from each equal to their respective focal lengths and, utilizing radiation from a remote object parallel to the axis, the system being operable to determine the position or size of the object regardless of its distance from the system.
Electronic Flash Apparatus With Inhibition Of Contact Bounce False Triggering
James R. Adams - Littleton CO Dennis J. Wilwerding - Littleton CO
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
H05B 4132
US Classification:
315241P
Abstract:
False triggering of the flash termination switch in a series termination electronic flash unit as a result of contact bounce is eliminated. Gating means inhibits the contacts from triggering the flash termination switch unless a voltage at a selected point in the circuit has attained a predetermined value. False triggering of the flash ignition as a result of noise present on the synchronization switch line is also inhibited.
Linearization Scheme For Optical Measurement Systems
A method and apparatus for correcting errors in an optical measurement system utilizing a lens which may have distortions that would vary as a function of distance, by providing an encoded indication of the distortions of the lens for use by the system operator together with distance information to input a microprocessor and modify the signal from the detectors in the system to produce an accurate output.
James D. Joseph - Oakdale MN Dennis J. Wilwerding - Littleton CO
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
G01J 136
US Classification:
250204
Abstract:
Apparatus for determining the direction a lens should be moved in order to provide a proper focus of a remote object on a predetermined plane. A plurality of radiation detectors are positioned to receive radiation in first and second patterns from the object and to produce signals in accordance therewith. A first group of radiation detectors, produces signals indicative of the radiation received on the first pattern while a second group of radiation detectors produces signals indicative of the radiation received, in the second pattern. The two patterns coincide at the proper focus but at other than the proper focus position, the two patterns are spaced from one another in a direction which depends upon the direction the lens should be moved to achieve proper focus. The absolute value of the difference between the signal from a first detector in the first pattern and the signal from a first detector in the second pattern is compared with the absolute value of the difference between the signal from a second detector in the first pattern and the signal from a second detector in the second pattern. The result is summed over a predetermined range and a characteristic of the summed value is indicative of the direction the lens should be moved for proper focus.
An autofocus system employing a slave lens which is so shaped or configured as to produce a strip of radiation on a pair of detectors used in the autofocus system thus enabling an attractive and useful arrangement for photographic or video camera apparatus.
An improved remote light sensor for use with an electronic flash unit is disclosed. The remote light sensor generates a termination signal to terinate the light provided by the flash unit when sufficient light is received from the scene being illuminated.