Frightening apparatus

• US 7,344,264 B2
• Filed: 04/23/2001
• Issued: 03/18/2008
• Est. Priority Date: 04/21/2000
• Status: Expired due to Fees

• Current Assignee: Labosphere Institute
• Original Assignee: Labosphere Institute
• Inventors: Tamaoki, Satoshi
• Primary Examiner(s): Sawhney; Hargobind S.
• Application Number:
  US10/257,844
• Publication Number:
  US 20030174504A1
• Time in Patent Office: 2,521 Days
• Field of Search: 362/470, 362/800, 362/230, 362/231, 362/103, 362/108, 362/186, 362/310, 362/311, 362/545, 362/244, 362/35, 116/22.A, 119/908, 367/183, 340/815.45, 340/815.5, 340/981, 340/982, 340/815.4, 404/41
• US Class Current: 362/35
• CPC Class Codes: A01M 29/08 using reflection, colours or films with specific transparency or reflectivity
• CPC Class Codes: A01M 29/10 using light sources, e.g. lasers or flashing lights
• CPC Class Codes: B64D 2203/00 Aircraft or airfield lights using LEDs
• CPC Class Codes: B64D 47/02 Arrangements or adaptations of signal or lighting devices
• CPC Class Codes: B64D 47/06 for indicating aircraft presence
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 2224/32145 the bodies being stacked
• CPC Class Codes: H01L 2224/48472 the other connecting portion not on the bonding area also being a wedge bond, i.e. wedge-to-wedge
• CPC Class Codes: H01L 2224/49107 on the semiconductor or solid-state body
• CPC Class Codes: H01L 2224/73265 Layer and wire connectors
• CPC Class Codes: H01L 25/0756 Stacked arrangements of devices
• CPC Class Codes: H01L 33/58 Optical field-shaping elements
• CPC Class Codes: H01L 33/60 Reflective elements

Abstract

A first light-emitting unit (11a), a second light-emitting unit (11b), . . . are disposed near a tip vicinity of a spinner cover (1) of a propeller (2). The first light-emitting unit (11a) embraces a first bulk-shaped lens of bullet-like, and a semiconductor light-emitting element is installed in a cavity of the first bulk-shaped lens. The second light-emitting unit (11b) embraces a second bulk-shaped lens of bullet-like, and a semiconductor light-emitting element installed in a cavity of the second bulk-shaped lens. The first light-emitting unit (11a) and the second light-emitting unit (11b) are formed so as to be able to attach to and detach from the spinner cover (1) as an attachment (4) for bird strike protection.

Claims

1. A rotating apparatus for frightening an animal by illuminating a collimated light against the animal along the rotating axis of the rotating apparatus, comprising:

a rotating body having the rotating axis;

a bulk-shaped lens for condensing light along an optical axis co-axial with the rotating axis, wherein the bulk-shaped lens is disposed at a tip of the rotating body and rotates with the rotating body, the bulk-shaped lens comprising;

a bulk-shaped lens body identified by a top surface, a bottom surface and a contour surface, the center of the top and bottom surfaces defining the optical axis in a direction from the bottom surface to the top surface; and

a well-shaped cavity implemented in the inside of the lens body, aligned along the optical axis, allocated at a backside of the lens body, and

a semiconductor light-emitting element for emitting the light, installed in the cavity,

wherein a ceiling surface of the cavity serves as a main entrance surface, an inner wall portion of the cavity other than the ceiling surface serve as an effective entrance surface, the top surface of the lens body serves as an exit surface for defining a divergence angle of the light along the optical axis, and outer diameter of contour surface of the bulk-shaped lens is larger than three times and smaller than ten times of inner diameter of the cavity, and the bulk-shaped lens rotate with the rotating body.

2. The rotating apparatus of claim 1, wherein the semiconductor light emitting element comprises three LED chips, emitting lights in red, green, blue respectively, stacked vertically or disposed closely, so that emitted light color can be changed by adjusting bias of each LED chip.