Polaroid Corporation

Bose Corporation

Innovations in Optics, Inc.

Patrick W Hopkins

Norman D Staller

Paul D Gjeltema

Michael J Monahan

Michael Rider

Thomas John Brukilacchio

John Robert Householder

Lawrence J Salvo

Jonathan D Turner

Richard L Pyatt

Michael S D'Agostino

Elliott S Strizhak

Garret J Caterino

An earpiece of an ANR device incorporates one or more of feedforward-based ANR; feedback-based ANR; passive noise reduction (PNR) of environmental noise sounds in the environment external to the casing of the earpiece in higher audible frequencies; a controlled leak acoustically coupling the front cavity to the environment external to the casing of the ANR device where the coupling may be through another cavity that is closable to the environment external to the casing with a leaky cover; a combination of an acoustically resistive port and a mass port coupling a rear cavity to the environment external to the casing where the coupling may be through another cavity that is closable to the environment external to the casing with a leaky cover; a feedforward microphone given acoustic access to the environment external to the casing through an aperture that is overlain with a leaky cover or that is enclosed within a cavity that is acoustically coupled to the environment external to the casing with a leak.

Feedforward ANR device cover

A scanning light source system combines the outputs from multiple, spatially separated, sequentially pulsed light sources for travel in rapid succession along one or more common delivery paths to provide one or more collective outputs that are comparatively higher than would otherwise be possible with the light sources operating singly.

Scanning light source system

The present invention is a self-developing compact camera having a housing that encloses, in a common cavity thereof, an arrangement comprising a taking lens, shutter, a light-reflector, viewfinder, power source, actuator, a self-developing film compartment, and a spring biased exit flap. The present invention also includes a method of manufacturing said camera.

Compact photographic camera

A camera shutter and focus encoder assembly comprises an encoder mask fixed in a camera housing and having an arcuate window having alternating opaque and transmissive portions, and an encoder sheet mounted in the housing in abutting relationship with the encoder mask, the encoder sheet being movable with exposure blades and the focus lens of the camera and having an arcuate window having alternating opaque and transmissive portions therein. Means are provided for pressing the encoder mask and the encoder sheet together with the mask and sheet windows in registration with each other. A sensor passes pulses of light through the mask and sheet windows when the transmissive portions thereof are in registration and detects the pulses of light, converts the light pulses to electrical signals, and transmits the electrical signals. A controller receives the electrical signals and determines therefrom the position and direction of movement of the shutter blades, compares the blade position and movement direction with a preselected program and sends to a motor a signal instructing any required compensating shutter blade movement change, and in like manner monitors the focus assembly and sends to the motor a signal instructing any required compensating lens movement change.

Camera encoder assembly, system and method thereof

A camera shutter and focus lens assembly includes a rotary motor having a central shaft, and a rotary beam actuator connected to the shaft. A moveable focus lens, a first shutter blade, and a second shutter blade are in mechanical communication with the actuator beam. Rotation of the shaft by the motor operates to cause movement of the focus lens to effect a selected focusing relationship between the focus lens and a fixed lens proximate thereto, and further operates to cause movement of the first and second shutter blades to cause the shutter blades cooperatively to define an opening to permit light to pass therethrough.

Camera shutter and focus lens assembly

Growing community of inventors

Amherst, NH, United States of America

Patrick W Hopkins