Back to results
US 2001/0043313 A1Published application
Projection type illuminating device
AssigneeHal Corporation
InventorMitsuyoshi Okura
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeHal Corporation
InventorMitsuyoshi Okura
Estimating the term…
To provide a projection type illuminating device which can clearly form a silhouette, a projected figure or the like at a projecting position by a lighted electric lamp, and is safely used without damaging an eye even when the light accidentally enters the eye of a person. The device includes a condenser lens barrel part 20 removably attached to the tip of an illuminator main body 10 for performing radiation with a lighted electric lamp 13, a mask part 30 removably attached to the tip of the condenser lens barrel part 20 and having a shading plate 31 in which projecting opening parts 32 of various forms are opened and formed in the center, at the tip, and a focus adjusting lens barrel part 40 that is back and forth slidably attached to the tip of the condenser lens barrel part 20 in the state of covering the total of the mounted mask part 30 and that projects the opening part shape of the projecting opening part 32 by focusing the light passing through the projecting opening part 32 of the mask part 30 by the radiation of the illuminator main body 10 together with the condenser lens barrel part 20. The focus adjusting lens barrel part 40 is configured to have a screw type structure or a click type structure.
A projection type illuminating device comprising:
A projection type illuminating device comprising:
A projection type illuminating device comprising:
A projection type illuminating device comprising:
Dependencies are inferred from the claim text.