Optical object distance simulation device

Details Optical object distance simulation device Optical object distance simulation device

2008-05-27

2008-05-27

Stafira, Michael P. (Department: 2886)

Optics: measuring and testing

Lens or reflective image former testing

C356S125000

Reexamination Certificate

active

11476166

ABSTRACT:
An optical object distance simulation device is disclosed. The device has an optical lens module composed of a plurality of optical lens and the optical lens module is arranged between an optical lens and a chart for simulating the real object distance and reducing the space required for testing an optical lens. Moreover, the optical lens module is separated from a light-emitting element, a power supply or any heat-generating elements all separated from the optical lens module. Furthermore, the heat-dissipating elements are arranged near elements that generate substantial heat. Hence, not only does the present invention have a good heat-dissipating effect, but it also prevents external dust from polluting the optical lens module because of the positioning of the heat-dissipating element and the heat-dissipating hole.

REFERENCES:
patent: 5331394 (1994-07-01), Shalon et al.
patent: 2005/0264795 (2005-12-01), Murata
patent: 56044821 (1981-04-01), None

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