Optical verification device专利检索-光学编码器传感器与探测器专利检索查询-专利查询网

Optical verification device

阅读：679发布：2023-02-13

专利汇可以提供Optical verification device专利检索，专利查询，专利分析的服务。并且An optical device useful in selecting and verifying the position of projection slides, slide magazines, etc., is disclosed. The verification device includes a mounting strip adapted to be removably attached to the edge of a projection slide, a slide magazine end panel, etc. A number of reflective elements are secured to the strip by frangible webs along a line. Selected elements may be easily broken away to provide a coded array of reflective and non-reflective elemental areas. A sensing means including a light source and photodetector past which a group of the coded devices is passed can select a slide, or verify the presence of a desired slide, according to the coded pattern of reflecting and non-reflecting elemental areas.，下面是Optical verification device专利的具体信息内容。

权利要求

1. An optical verification device which comprises: a. a mounting strip adapted for attachment to items to be automatically selected; b. said mounting strip including latching means for releasably securing said strip to said item; c. a plurality of reflective elements mounted in a linear closely spaced array on said strip with their reflective surfaces lying substantially in the same plane; d. each reflective elemented mounted on said strip by an easily frangible web, whereby selected reflective elements may be easily removed to produce an array of coded reflective and nonreflective areas.

2. The device according to claim 1 wherein at least said reflective surfaces are coated with a thin, highly reflective layer of aluminum.

3. The device according to claim 1 wherein said mounting strip latching means includes at least one projecting lug adapted to engage a corresponding hole in said item to releasably secure said strip to said item.

4. In a slide verification system which includes a plurality of adjacent projection slides, a verification area along the edge of each slide having a coded linear array of reflective and non-reflective elemental areas, and a detector movable relative to said verification area which comprises a light source directing light against said verification areas and a plurality of photo-electric detectors to detect the reflection or non-reflection of light from each of said elemental areas; the improvement wherein said verification area comprises a mounting strip removably attached to said slide edge by a releasable latch means, a plurality of reflective elements mounted on said strip in a linear closely spaced array substantially parallel to said slide edge; each reflective element being connected to said strip by an easily frangible web, whereby selected reflective elements may be easily removed to produce the desired coded array of reflective and non-reflective elemental areas.

5. The improvement according to claim 4 wherein at least the surface of said reflective elements are coated with a thin highly reflective layer of aluminum.

6. The improvement according to claim 4 wherein said latch means includes at least one projecting lug on said strip each lug having an enlarged head adapted to releasably engage a corresponding hole in said slide edge.

7. A projection slide comprising: a. a unitary substantially planar slide including a slide frame surrounding a transparent film support sheet; b. means to hold a film transparency in contact with said support sheet; c. interlocking means for releasably attaching a verification device to said slide frame along one outer edge thereof; d. said verification device including a mounting strip holding a plurality of reflective elements in a linear closely spaced array, the reflective surfaces lying suBstantially in a single plane and visible from a viewpoint outside said frame substantially in the plane of said frame. e. each of said reflective elements being connected to said strip by an easily frangible web, whereby selected reflective elements may be easily removed to produce a desired coded array of reflective and non-reflective elemental areas.

8. The slide according to claim 7 wherein the plane of said reflective surfaces is substantially perpendicular to the plane of said slide and at least said reflective surfaces are coated with a thin highly reflective aluminum layer.

9. The slide according to claim 7 wherein said interlocking means includes a plurality of lugs extending outwardly from said strip, each of said lugs having an enlarged head, each lug adapted to releasably latch within a corresponding hole in said slide frame edge.

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