Photography – Aerial camera – Support or holder
Patent
1995-05-15
1996-12-31
Gray, David M.
Photography
Aerial camera
Support or holder
348144, G03B 3900
Patent
active
055899013
ABSTRACT:
A search and surveillance system is describes in which two separate devices, typically a searchlight and an infrared and/or video camera, can be directly linked electronically through one device's comparator, without inclusion of an intermediate coordinating device, so that a user's movement and positioning of one of the devices directly determines the movement and positioning of the other device. Either of the devices may be the master unit, although in most cases the searchlight will be the master unit. The invention allows the user to concentrate on monitoring the operation of the master unit with the slave unit automatically responding in unison. The system is primarily used on aircraft, especially helicopters. Preferred methods of use of the system are also disclosed. The system uniquely utilizes comparator circuitry already found in conventional gimbal/unit positioning devices. Linking of the positioning and control components of two units through the use of comparator circuitry common to present commercial search and surveillance units greatly simplifies the synchronization of multiple units, and avoids the use of additional complex and expense equipment, thus overcoming complexities and expense of previous devices.
REFERENCES:
patent: 2823366 (1958-02-01), Schmitz, Jr.
patent: 3641261 (1972-02-01), Chaplin et al.
patent: 4027159 (1977-05-01), Bishop
patent: 4084083 (1978-04-01), McNally et al.
patent: 4093904 (1978-06-01), Burig et al.
patent: 4245298 (1981-01-01), Slater
patent: 4319306 (1982-03-01), Stanuch
Product Brochure "Slaved Searchlight System (Slass) Retrofit" by Dynametric Systems Co., Jan. 27, 1995.
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