Illuminating devices

Details

Inventors: Pennington-Ridge, Patrick A.;
Assignee:
Primary Examiner: Husar; Stephen F.
Assistant Examiner: Cox; D. M.
Attorney, Agent or Firm: Plante, Strauss, Vanderburgh & Connors

An illuminating device comprises a tubular outer sleeve (12) provided with an elongated transparent window (13), with an inner sleeve (22) formed with an aperture (27). The inner sleeve (22) houses a pair of self-luminous light sources (30). Relative rotation between the inner and outer sleeves (22, 12) determines the shape illustrated by the sources (30) and visible through the window (13). The inner sleeve (22) thus serves as a shutter in controlling light emission.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT With reference to the figures, the illuminating device 11 illustrated thereby comprises a tubular outer sleeve 12 provided with a longitudinally extending transparent elongated window portion 13.
A shutter member comprising a tubular inner sleeve 22 is disposed coaxially within the outer sleeve and is rotatable relative thereto.
A cover portion 14 having a hexagonal peripheral shape 15 closes one end of the outer sleeve 12 and is provided with a clip member 16 to facilitate attachment of the device 11 to a person.
The illuminating device 11 is constructed of resilient plastics material.
As shown in more detail in FIG.
2, the outer sleeve 12 which incorporates the window 13, is open at both ends.
A first internal groove 17 is formed on the inner (wall) surface 18 of the sleeve 12 at an upper end 19 thereof.
A second internal groove 20 is formed on the inner (wall) surface 18, spaced inwardly from a lower end 21 of the sleeve.
The tubular inner sleeve 22 (FIG.
3) has an open upper end 23 and a closed lower end 24.
Radially extending flanges 25 and 26 respectively are located at the upper and lower ends 23, 24 of the inner sleeve 22.
An aperture 27 having a predetermined shape and for a purpose hereinafter described, is formed in the wall of the inner sleeve 22, and is extended by a slot 28 through its upper end 23.
An O-ring 29 is located in a peripheral groove adjacent the lower end of the inner sleeve 22.
Two longitudinally extending self luminous visible light sources 30 of elongate form, such as are manufactured by Saunders-Roe Developments Limited under the Trade Mark "BETALIGHT", are adhered or otherwise secured to the surface of a pillar 31 which is formed integral with the top cover 14, and extending generally perpendicularly downwardly therefrom.
Betalights consist of sealed glass capsules internally coated with phosphor and filled with tritium gas which activates the phosphor to produce light.
Two concentric integral flanges 32 and 33 are formed on a lower surface of the cover 14

Related patents

	Mercury chalcogenide contact for semiconductor devices An object of this invention is to provide a contact material for nondegenerate semiconductors, which has high electronegativity. Another object of this invention is to ...
	Semiconductor light-emitting devices It is an objective of the present invention to overcome the disadvantages of the prior art as set out above, by providing semiconductor light-emitting devices capable of ...
	Surface emission type semiconductor laser It is therefore an object of the present invention to provide a high-efficiency surface emission type semiconductor laser which is of a complete current restrictable ...
	Vibration input to moving aqueous cemetitious slurry Referring first to FIG. 1, a mixing vessel 10 has an upper cylindrical metallic wall section 11, and a lower conical wall section 12. Section 12 has a lower central ...
	Color video projecting apparatus using acousto-optical deflector It is therefore an object of the present invention to provide a laser beam scanning system that is capable of producing a color image on a real-time basis. It is another ...

0.034
Archive: All patents - Links Copyright (c)2006 Eipa-patents.org - All rights reserved