Logo projector

• US 5,233,375 A
• Filed: 07/29/1991
• Issued: 08/03/1993
• Est. Priority Date: 07/29/1991
• Status: Expired due to Fees

• Current Assignee: Stephen L. Heiden, Williams, Charles A.
• Original Assignee: Stephen L. Heiden, Williams, Charles A.
• Inventors: Williams, Charles A., Heiden, Stephen L.
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Dowling, William C.
• Application Number:
  US07/734,674
• Time in Patent Office: 736 Days
• Field of Search: 353/43, 353/100, 353/80, 353/24, 353/23, 353/22
• US Class Current: 353/43
• CPC Class Codes: G02B 27/18 for optical projection, e.g. combination of mirror and condenser and objective photographic, cine and overhead projectors G03B21/00; photographic projection printing G03B27/32; photolithographic projectors G03F7/20; projection television H04N5/74; colour projection television H04N9/31
• CPC Class Codes: G09F 19/18 involving the use of optical projection means, e.g. projection of images on clouds projection apparatus per se G03B

Abstract

A logo projector is provided which consists of a flashlight that can be held in a hand of a person using said logo projector. A bezel is affixed to the flashlight so that when the flashlight is turned on a beam of light will pass through the bezel. An elongated opaque tube is affixed at a first end to the bezel. A focusing lens is affixed to a second end of the elongated opaque tube. A transparent member having an opaque logo on the center of the back surface thereof is also provided. The transparent member is affixed to the first end of the elongated opaque tube adjacent the bezel so that when the flashlight is turned on the beam of light passing through will cause an image of a silhouette of the opaque logo from the transparent member to be projected onto a distant surface.

Claims

1. An opaque logo projector which comprises:

a) a flashlight having a housing that can be held in a hand of a person using said opaque logo projector;

b) a light source with a parabolic reflector mounted at a front end of the housing;

c) a bezel affixed to said front end of said housing so that when said flashlight is turned on a beam of light will pass through said bezel;

d) an elongated open tube of constant length affixed at a first end to said bezel;

e) a focusing lens affixed to a second end of said elongated opaque tube, wherein said focusing lens has a focal length equal to f, and the distance S between said opaque logo and said focusing lens is greater than 300×

f/(300-f), but less than 180×

f/(180-f); and

f) a transparent member having an opaque logo on the center of the back surface thereof, said transparent member affixed to the first end of said elongated opaque tube adjacent said bezel so that when said flashlight is turned on the beam of light passing through will cause an image of a silhouette of the opaque logo from said transparent member to be projected onto a distant surface.

2. A logo projector as recited in claim 1, wherein said transparent member is a flat disc sized to securely fit against the first end of said elongated opaque tube.

3. A logo projector as recited in claim 1, wherein said transparent member is a second lens having a plano-convex configuration and sized to securely fit against the first end of said elongated opaque tube, so as to give a better saturation of light surrounding the image of the silhouette of the opaque logo when projected onto the distant surface.

4. A logo projector as recited in claim 1, wherein said said parabolic reflector and said focusing lens have a same diameter.

5. A logo projector which comprises:

a) a flashlight that can be held in a hand of a person using said logo projector;

b) a bezel affixed to said flashlight so that when said flashlight is turned on a beam of light will pass through said bezel;

c) an elongated opaque tube of constant length affixed at a first end to said bezel;

d) a focusing lens affixed to a second end of said elongated opaque tube, wherein said focusing lens has a focal length equal to f, and the distance S between said opaque logo and said focusing lens is greater than 300×

f/(300-f), but less than 180×

f/(180-f);

e) a transparent member having an opaque logo on the center of the back surface thereof, said transparent member affixed to the first end of said elongated opaque tube adjacent said bezel so that when said flashlight is turned on the beam of light passing through will cause an image of a silhouette of the opaque logo from said transparent member to be projected onto a distant surface, wherein said transparent member is a flat disc sized to securely fit against the first end of said elongated opaque tube;

f) a housing having a chamber;

g) a power supply positioned within the chamber of said housing;

h) a light source having a parabolic reflector positioned within the chamber of said housing between said power supply and said bezel, wherein said said parabolic reflector and said focusing lens have a same diameter;

i) a flexible conductor for electrically connecting said power supply to said light source, said flexible conductor biased so as to provide a normally opened circuit; and

j) a button mounted to slide on said housing, movable between a first and second position, said button depresses said flexible conductor in the first position in order to close the circuit, and releases said flexible conductor in the second position in order to open the circuit, so that said button will turn on said light source in the first position and turn off said light source in the second position.

6. A logo projector which comprises:

a) a flashlight that can be held in a hand of a person using said logo projector;

b) a bezel affixed to said flashlight so that when said flashlight is turned on a beam of light will pass through said bezel;

c) an elongated opaque tube affixed at a first end to said bezel;

d) a focusing lens affixed to a second end of said elongated opaque tube, wherein said focusing lens has a focal length equal to f, and the distance S between said opaque logo and said focusing lens is greater than 300×

f/(300-f), but less than 180×

f/(180-f);

e) a transparent member having an opaque logo on the center of the back surface thereof, said transparent member affixed to the first end of said elongated opaque tube adjacent said bezel so that when said flashlight is turned on the beam of light passing through will cause an image of a silhouette of the opaque logo from said transparent member to be projected onto a distant surface, wherein said transparent member is a second lens having a plano-convex configuration and sized to securely fit against the first end of said elongated opaque tube, so as to give a better saturation of light surrounding the image of the silhouette of the opaque logo when projected onto the distant surface;

f) a housing having a chamber;

g) a power supply positioned within the chamber of said housing;

h) a light source having a parabolic reflector positioned within the chamber of said housing between said power supply and said bezel, wherein said said parabolic reflector and said focusing lens have a same diameter;

i) a flexible conductor for electrically connecting said power supply to said light source, said flexible conductor biased so as to provide a normally opened circuit; and

j) a button mounted to slide on said housing, movable between a first and second position, said button depresses said flexible conductor in the first position in order to close the circuit, and releases said flexible conductor in the second position in order to open the circuit, so that said button will turn on said light source in the first position and turn off said light source in the second position.