Louis John Schmidt

US Patent:

7386229, Jun 10, 2008

Filed:

Jul 30, 2007

Appl. No.:

11/881931

Inventors:

Louis J. Schmidt - Hermosa Beach CA, US
Robert P. Schmidt - West Hollywood CA, US
Michael R. Schmidt - Hermosa Beach CA, US

Assignee:

Hoodman Corporation - Torrance CA

International Classification:

G03B 11/04
G02B 21/00

US Classification:

396534, 359611, 359612, 359613, 359643

Abstract:

In an exemplary embodiment, an LCD screen hood is provided for use with digital cameras. The hood includes a hood tube that defines a light blocking sidewall having an open camera end and an opposite viewing end and enclosing a longitudinally extending viewpath therebetween. An eyepiece mounted on the viewing end includes an eyepiece lens for enlarging an image on an associated LCD screen disposed at the camera end of the hood tube. An eye cup is mounted on the eyepiece for shielding the eyepiece lens from ambient light. An objective tube fixed to the hood tube carries a three piece objective lens mounted between the eyepiece lens and the camera end of the hood tube. Magnification of the eyepiece lens varies as appropriate between 1× and 2. 5×. Rotation of the eyepiece tube provides for diopter adjuxtment.

US Patent:

8335427, Dec 18, 2012

Filed:

Jul 18, 2011

Appl. No.:

13/184747

Inventors:

Louis J. Schmidt - Hermosa Beach CA, US
Michael R. Schmidt - Hermosa Beach CA, US
Robert P. Schmidt - West Hollywood CA, US

Assignee:

Hoodman Corporation - Torrance CA

International Classification:

G03B 11/00
G03B 11/04

US Classification:

396534, 396544

Abstract:

A camera viewfinder accessory mount in accordance with the invention includes a receiver mountable at least in part around a camera viewfinder frame. Thread units extend from the receiver. The thread units are defined by extensions having outside threads and inside geometric surfaces. A body portion of the accessory mount has a receiver end for matingly fitting the receiver, and a distal accessory end. The body portion further includes an indexing periphery having a peripheral shape for cooperating with the inside geometric surfaces of the thread units. The body portion also includes a stop radially extending from the periphery and spacedly disposed from the receiver end. A tightening wheel of the accessory mount has internal threads cooperable with the outside threads of the thread units to tighten the body portion receiver end to the camera viewfinder frame.

US Patent:

8503876, Aug 6, 2013

Filed:

Oct 17, 2011

Appl. No.:

13/274375

Inventors:

Louis J. Schmidt - Hermosa Beach CA, US
Michael R. Schmidt - Hermosa Beach CA, US
Robert P. Schmidt - West Hollywood CA, US

Assignee:

Hoodman Corporation - Torrance CA

International Classification:

G03B 13/02
G03B 13/08
G03B 17/02

US Classification:

396383, 396386, 396536

Abstract:

A camera viewfinder viewer accessory includes an elongated body portion having first and second ends and a longitudinal axis. A connector for mounting the body portion to a camera viewfinder is located on a side of the body portion and adjacent to the first end. The body portion longitudinal axis is generally parallel to the camera viewfinder in a mounted disposition. An end assembly is connected to the body portion second end and is rotatable about the body portion longitudinal axis. A viewer assembly is connected to a side of the end assembly and has a longitudinal axis generally perpendicular to the body portion longitudinal axis. The viewer assembly extends away from the end assembly and terminates at an eyepiece. The viewer accessory directs an image from the camera viewfinder into the viewer assembly, to be viewed through the eyepiece in any rotatable disposition of the end assembly.

US Patent:

40185320, Apr 19, 1977

Filed:

Sep 24, 1975

Appl. No.:

5/616472

Inventors:

James C. Administrator of the National Aeronautics and Space Fletcher
Louis F. Schmidt - Altadena CA
George D. Pace - Sierra Madre CA

International Classification:

G01B 1126

US Classification:

356141

Abstract:

A sun direction detection system is disclosed. It includes a housing with a slit, through which a line image of the sun is directed into the housing in a first direction. Placed in the housing is a substrate on which at least one pair of detectors are deposited in a direction perpendicular to the first direction. One of the detectors is an illumination detector consisting of two spaced apart elongated strips with a strip of cadmium sulphide (CdS) deposited therebetween. Whenever the line image impinges the CdS strip, the resistance between the two other strips is relatively low, while being high when the line image is outside the field of view of the illumination detector. Also included is a sun angle detector which consists of a vapor deposited resistor strip connected at one end to +10v and at the other end to -10v. Spaced apart from the resistor strip is an elongated strip of low resistance material acting as an output strip, with a CdS strip between the two strips. When the line image is within the field of view of the sun angle detector, the output voltage at the output strip depends on the position of the line image across the sun angle detector.

US Patent:

20190217968, Jul 18, 2019

Filed:

Mar 20, 2019

Appl. No.:

16/358752

Inventors:

Louis J. Schmidt - San Pedro CA, US

Assignee:

Hoodman Corporation - Torrance CA

International Classification:

B64F 1/00
B64F 1/04
B64C 39/02

Abstract:

A transportable launch and landing pad for drones includes a round surface member for supporting a drone on a ground surface. The surface member includes an endless flexible weighted ground surface contacting, engaging and conforming perimeter disposable on the flat or undulating topography of the ground surface. The endless flexible weighted ground surface contacting, engaging and conforming perimeter is formed of a stranded carbon steel wire rope. The surface member has a diameter establishing an area of the pad that is greater than any linear distance across an area of downwardly moving air of the drone when operated. The pad maintains a position on the ground surface without any separate securing member inserted into the ground, and the pad is not lifted from the ground surface by air from the thrust of the drone during approach and departure of the drone relative to the pad.

US Patent:

20180004249, Jan 4, 2018

Filed:

Sep 19, 2017

Appl. No.:

15/708224

Inventors:

Louis J. Schmidt - San Pedro CA, US
Michael R. Schmidt - Hermosa Beach CA, US
Robert P. Schmidt - West Hollywood CA, US

Assignee:

Hoodman Corporation - Torrance CA

International Classification:

G06F 1/16
G02B 27/00

Abstract:

A glare reduction hood for a touchscreen display includes an elongated closure structure having an open mounting end and an opposite, open viewing end. The mounting end is mount able on the touchscreen display such that the hood projects outwardly from the touchscreen display. The elongated closure structure includes a pierceable panel disposed between the mounting and viewing ends and having an openable and predisposably closed access. The closure structure shields the touchscreen display, the access is pierceable by a piercing object and intimately fitable around the piercing object preventing light from passing through the access, and the touchscreen display is viewable through the viewing end and contactable via the access.

US Patent:

20170166327, Jun 15, 2017

Filed:

Sep 13, 2016

Appl. No.:

15/263484

Inventors:

Louis J. Schmidt - San Pedro CA, US

Assignee:

Hoodman Corporation - Torrance CA

International Classification:

B64F 1/00
B64F 1/04

Abstract:

A launch and landing pad for drones includes a flexible base having a perimeter. An endless frame member is joined to the perimeter of the base. The endless frame member is weighted. The weight of the endless frame member holds the pad in place, and the endless frame member is collapsible to fold the pad for storage and releasable for use of the pad.

US Patent:

20140233933, Aug 21, 2014

Filed:

Feb 19, 2013

Appl. No.:

13/769958

Inventors:

Louis J. Schmidt - Hermosa Beach CA, US
Michael R. Schmidt - Hermosa Beach CA, US
Robert P. Schmidt - West Hollywood CA, US

International Classification:

G03B 13/02
G03B 13/06

US Classification:

396382, 396373

Abstract:

A camera viewfinder viewer accessory mountable on a camera includes an elongated body portion having first and second ends and a longitudinal axis extending from the first end to the second end. A light-transmitting passageway extends through the body portion from the first end to the second end. A connector is disposed adjacent to the first end. The body portion second end includes an angled face disposed at a generally 45 angle relative to the longitudinal axis. An eyepiece is connected to the body portion second end adjacent the angled face. The eyepiece has a longitudinal axis generally disposed at an angle that is 45 degrees relative to the longitudinal axis of the body portion. A viewfinder image is directed from the camera viewfinder along the longitudinal axis of the body portion, the image is redirected along the longitudinal axis of the eyepiece, to be viewed through the eyepiece.