Optical data insertion devices
First Claim
1. An optical data insertion device for an optical system, the optical data insertion device comprising:
- a projector operable to insert additional optical data into a capture aperture of the optical system so as to provide a combined image, wherein the projector comprises or is provided with a light guiding arrangement comprising a periscope element and a light directing element for guiding light emitted by the projector into the capture aperture;
a reflection barrier comprising;
a primary filter adapted to cover the capture aperture of the optical system, the primary filter having an aperture or cutaway portion aligned with the light emitted by the projector into the capture aperture, anda lens spacer which defines the aperture or the cutaway portion in the primary filter, the lens spacer comprising a tube projecting forward of the primary filter and the lens spacer abutting or surrounding the light guiding arrangement; and
an attachment means for attaching the optical data insertion device to the optical system.
1 Assignment
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Accused Products
Abstract
An optical data insertion device for an optical system includes a projector operable to insert additional optical data into a capture aperture of the optical system so as to provide a combined image and a reflection barrier. The reflection barrier includes a secondary filter and a primary filter adapted to fit over the rest of the capture aperture of the optical system. The secondary filter is a band pass filter adapted to allow the transmission of a narrow pass band centerd on the peak emission wavelength of the projector. The primary filter is a narrow band stop filter that blocks the transmission of a narrow band of light corresponding to that allowed to pass by the band pass filter.
14 Citations
25 Claims
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1. An optical data insertion device for an optical system, the optical data insertion device comprising:
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a projector operable to insert additional optical data into a capture aperture of the optical system so as to provide a combined image, wherein the projector comprises or is provided with a light guiding arrangement comprising a periscope element and a light directing element for guiding light emitted by the projector into the capture aperture; a reflection barrier comprising; a primary filter adapted to cover the capture aperture of the optical system, the primary filter having an aperture or cutaway portion aligned with the light emitted by the projector into the capture aperture, and a lens spacer which defines the aperture or the cutaway portion in the primary filter, the lens spacer comprising a tube projecting forward of the primary filter and the lens spacer abutting or surrounding the light guiding arrangement; and an attachment means for attaching the optical data insertion device to the optical system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An optical data insertion device for an optical system, the optical system including tube walls, a lens within the tube walls and a capture aperture, the optical data insertion device comprising:
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a projector operable to insert additional optical data into the capture aperture of the optical system so as to provide a combined image, wherein the projector comprises a light guiding arrangement comprising a periscope element, and a light directing element for guiding light emitted by the projector into the capture aperture; a reflection barrier comprising a primary filter adapted to cover the capture aperture of the optical system, the primary filter comprising a band stop filter, the primary filter having an aperture portion aligned with the light emitted by the projector into the capture aperture, wherein a tubular lens spacer defines the aperture portion in the primary filter, the tubular lens spacer projecting forward of the primary filter and the lens spacer abutting or surrounding the light guiding arrangement; a secondary filter disposed within the lens spacer, the secondary filter comprising a band pass filter, said secondary filter allowing light from the projector to enter the capture aperture through the lens spacer, said primary filter preventing light reflected back from a lens within the tube walls from escaping through the capture aperture; and an attachment ring for attaching the optical data insertion device to an outside surface of the tube walls of the optical system. - View Dependent Claims (23)
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24. An optical data insertion device for an optical system, the optical data insertion device comprising:
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a projector operable to insert additional optical data into a capture aperture of the optical system so as to provide a combined image;
wherein the projector comprises or is provided with a light guiding arrangement comprising a periscope element and a light directing element for guiding light emitted by the projector into the capture aperture;an attachment means for attaching the optical data insertion device to the optical system; and a reflection barrier comprising;
a primary filter adapted to cover the capture aperture of the optical system, the primary filter having an aperture or cutaway portion aligned with the light emitted by the projector into the capture aperture; and
a frame in which the primary filter is provided, the frame adapted for attachment to the capture aperture of the optical system and comprising a threaded ring adapted to fit around the capture aperture of the optical system and operable in cooperation with a thread provided on the capture aperture to allow axial adjustment of the reflection barrier. - View Dependent Claims (25)
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Specification